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| <div class="title">SegmentInfos.cs</div> </div> |
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| <a href="_segment_infos_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> System.IO;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using</span> Lucene.Net.Support;</div> |
| <div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#ad7d13fd4cca797d2019d50571a62bdf8"> 22</a></span> <span class="keyword">using</span> <a class="code" href="_segment_infos_8cs.html#ad7d13fd4cca797d2019d50571a62bdf8">ChecksumIndexInput</a> = Lucene.Net.Store.ChecksumIndexInput;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#a75b36344b1d3bb7e82d49a97573813c3"> 23</a></span> <span class="keyword">using</span> <a class="code" href="_segment_infos_8cs.html#a75b36344b1d3bb7e82d49a97573813c3">ChecksumIndexOutput</a> = Lucene.Net.Store.ChecksumIndexOutput;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#ac7fdd4fc5daf7ce3e6be563664f8bf64"> 24</a></span> <span class="keyword">using</span> <a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> = Lucene.Net.Store.Directory;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#a12195e9150e4d7af469b90ac95cc47ee"> 25</a></span> <span class="keyword">using</span> <a class="code" href="_byte_slice_reader_8cs.html#a12195e9150e4d7af469b90ac95cc47ee">IndexInput</a> = Lucene.Net.Store.IndexInput;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5"> 26</a></span> <span class="keyword">using</span> <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> = Lucene.Net.Store.IndexOutput;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="_segment_infos_8cs.html#a2a6014236e864c10f92b72d1b5ded0ec"> 27</a></span> <span class="keyword">using</span> <a class="code" href="_segment_infos_8cs.html#a2a6014236e864c10f92b72d1b5ded0ec">NoSuchDirectoryException</a> = Lucene.Net.Store.NoSuchDirectoryException;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>Lucene.Net.Index</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  [Serializable]</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html"> 39</a></span>  <span class="keyword">public</span> sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> : List<SegmentInfo>, ICloneable</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">private</span> <span class="keyword">class </span>AnonymousClassFindSegmentsFile:<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html" title="Utility class for executing code that needs to do something with the current segments file...">FindSegmentsFile</a></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> InitBlock(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> enclosingInstance)</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  this.enclosingInstance = enclosingInstance;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">private</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> enclosingInstance;</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> Enclosing_Instance</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">get</span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> enclosingInstance;</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">internal</span> AnonymousClassFindSegmentsFile(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> enclosingInstance, Lucene.Net.Store.Directory Param1):base(Param1)</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  {</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  InitBlock(enclosingInstance);</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">public</span> <span class="comment">/*protected internal*/</span> <span class="keyword">override</span> System.Object DoBody(System.String segmentFileName)</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  {</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  Enclosing_Instance.Read(directory, segmentFileName);</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> null;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">/* Works since counter, the old 1st entry, is always >= 0 */</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#abcc36098f18ca35bc9cddee5cfd3ab52"> 69</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT = - 1;</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div> |
| <div class="line"><a name="l00080"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a3424618a07882f45ac3e8db50bc37575"> 80</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_LOCKLESS = - 2;</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div> |
| <div class="line"><a name="l00086"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a7527ee8c11b0602b104734106407d18d"> 86</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_SINGLE_NORM_FILE = - 3;</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div> |
| <div class="line"><a name="l00091"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a0c33d42e1c012f3c8dec38e4b40bbe7b"> 91</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_SHARED_DOC_STORE = - 4;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div> |
| <div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#abb1874a269426a80dbf53f0d71e2ffcd"> 96</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_CHECKSUM = - 5;</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a31de7700b3c55bb2c70e76dd7db0f288"> 101</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_DEL_COUNT = - 6;</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div> |
| <div class="line"><a name="l00107"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ad15433576cefaa2abc27c858fe56f1f6"> 107</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_HAS_PROX = - 7;</div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div> |
| <div class="line"><a name="l00110"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a5b2be8cb37aafe155fb32d882f7e671d"> 110</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_USER_DATA = - 8;</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  </div> |
| <div class="line"><a name="l00115"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#af1ca2a35d9c30824e72cb6e32ba466a3"> 115</a></span>  <span class="keyword">public</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FORMAT_DIAGNOSTICS = - 9;</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">/* This must always point to the most recent file format. */</span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">internal</span> <span class="keyword">static</span> readonly <span class="keywordtype">int</span> CURRENT_FORMAT = FORMAT_DIAGNOSTICS;</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div> |
| <div class="line"><a name="l00120"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a17192eb2ee419dcb25455f120d8b935b"> 120</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> counter = 0; <span class="comment">// used to name new segments</span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"></span> <span class="keyword">private</span> <span class="keywordtype">long</span> version = (DateTime.UtcNow.Ticks / TimeSpan.TicksPerMillisecond);</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">private</span> <span class="keywordtype">long</span> generation = 0; <span class="comment">// generation of the "segments_N" for the next commit</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">private</span> <span class="keywordtype">long</span> lastGeneration = 0; <span class="comment">// generation of the "segments_N" file we last successfully read</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// or wrote; this is normally the same as generation except if</span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// there was an IOException that had interrupted a commit</span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">private</span> IDictionary<string, string> userData = <span class="keyword">new</span> HashMap<string, string>(); <span class="comment">// Opaque Map<String, String> that user can specify during IndexWriter.commit</span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">private</span> <span class="keyword">static</span> System.IO.StreamWriter infoStream;</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div> |
| <div class="line"><a name="l00138"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a879c913c5764aea25d26ae7d206eedc0"> 138</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a> Info(<span class="keywordtype">int</span> i)</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  {</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> (<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a>) <span class="keyword">this</span>[i];</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div> |
| <div class="line"><a name="l00149"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a124c6deff913e99aeb3a2edf6534edfc"> 149</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">long</span> GetCurrentSegmentGeneration(System.String[] files)</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  {</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (files == null)</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> - 1;</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">long</span> max = - 1;</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < files.Length; i++)</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  {</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  System.String file = files[i];</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span> (file.StartsWith(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>) && !file.Equals(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#ac50f0ab232dedabd1106c7128024abb1" title="Name of the generation reference file name ">SEGMENTS_GEN</a>))</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  {</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">long</span> gen = GenerationFromSegmentsFileName(file);</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (gen > max)</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  {</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  max = gen;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> max;</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div> |
| <div class="line"><a name="l00177"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a4eab292c9d36bf7c0e9187a4194d1ca9"> 177</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">long</span> GetCurrentSegmentGeneration(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  {</div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  {</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> GetCurrentSegmentGeneration(directory.ListAll());</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">catch</span> (<a class="code" href="_segment_infos_8cs.html#a2a6014236e864c10f92b72d1b5ded0ec">NoSuchDirectoryException</a>)</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  {</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> - 1;</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  </div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div> |
| <div class="line"><a name="l00196"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a3dd07fad71cbc23fc5f11c937ee3c15b"> 196</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> System.String GetCurrentSegmentFileName(System.String[] files)</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, GetCurrentSegmentGeneration(files));</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  </div> |
| <div class="line"><a name="l00207"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a0adc3c6cff0553bcd5501514eafeb269"> 207</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> System.String GetCurrentSegmentFileName(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  {</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, GetCurrentSegmentGeneration(directory));</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  </div> |
| <div class="line"><a name="l00213"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a045e727f2f44f9ae4027dcd979f1f472"> 213</a></span>  <span class="keyword">public</span> System.String GetCurrentSegmentFileName()</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  {</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, lastGeneration);</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  </div> |
| <div class="line"><a name="l00221"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a2934f3394331903e2eed4d971df1b9f0"> 221</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">long</span> GenerationFromSegmentsFileName(System.String fileName)</div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  {</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (fileName.Equals(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>))</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  {</div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> 0;</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (fileName.StartsWith(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>))</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  {</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">return</span> <a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html" title="A simple class for number conversions. ">Number</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_number.html#a60b7d7476ff3622733f73e027731d1d8" title="Converts a System.String number to long. ">ToInt64</a>(fileName.Substring(1 + <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>.Length));</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.ArgumentException(<span class="stringliteral">"fileName \""</span> + fileName + <span class="stringliteral">"\" is not a segments file"</span>);</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  </div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  </div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  [System.Diagnostics.CodeAnalysis.SuppressMessage(<span class="stringliteral">"Microsoft.Design"</span>, <span class="stringliteral">"CA1024:UsePropertiesWhereAppropriate"</span>)]</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ab76b12e401f3dc85e95c21c4100bde8f"> 240</a></span>  <span class="keyword">public</span> System.String GetNextSegmentFileName()</div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  {</div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordtype">long</span> nextGeneration;</div> |
| <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  </div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (generation == - 1)</div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  {</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  nextGeneration = 1;</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  {</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  nextGeneration = generation + 1;</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">return</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, nextGeneration);</div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  }</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  </div> |
| <div class="line"><a name="l00265"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#aa684d55d91250147563d4620e890a181"> 265</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Read(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory, System.String segmentFileName)</div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  {</div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordtype">bool</span> success = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// Clear any previous segments:</span></div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  Clear();</div> |
| <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  </div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  var input = <span class="keyword">new</span> <a class="code" href="_segment_infos_8cs.html#ad7d13fd4cca797d2019d50571a62bdf8">ChecksumIndexInput</a>(directory.OpenInput(segmentFileName));</div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  </div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  generation = GenerationFromSegmentsFileName(segmentFileName);</div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  </div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  lastGeneration = generation;</div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  </div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  {</div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordtype">int</span> format = input.ReadInt();</div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (format < 0)</div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  {</div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// file contains explicit format info</span></div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// check that it is a format we can understand</span></div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (format < CURRENT_FORMAT)</div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> <a class="code" href="_index_searcher_8cs.html#abf029fdf5416b36731b7e3e3643f6eb0">CorruptIndexException</a>(<span class="stringliteral">"Unknown format version: "</span> + format);</div> |
| <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  version = input.ReadLong(); <span class="comment">// read version</span></div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  counter = input.ReadInt(); <span class="comment">// read counter</span></div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// file is in old format without explicit format info</span></div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  counter = format;</div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  </div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = input.ReadInt(); i > 0; i--)</div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  {</div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// read segmentInfos</span></div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  Add(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a>(directory, format, input));</div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  </div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (format >= 0)</div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  {</div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">// in old format the version number may be at the end of the file</span></div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">if</span> (input.FilePointer >= input.Length())</div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  version = (DateTime.UtcNow.Ticks / TimeSpan.TicksPerMillisecond);</div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// old file format without version number</span></div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  version = input.ReadLong(); <span class="comment">// read version</span></div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  </div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">if</span> (format <= FORMAT_USER_DATA)</div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  {</div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (format <= FORMAT_DIAGNOSTICS)</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  {</div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  userData = input.ReadStringStringMap();</div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (0 != input.ReadByte())</div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  {</div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// TODO: Should be read-only map</span></div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  userData = <span class="keyword">new</span> HashMap<string,string> {{<span class="stringliteral">"userData"</span>, input.ReadString()}};</div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  }</div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  {</div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// TODO: Should be empty read-only map</span></div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  userData = <span class="keyword">new</span> HashMap<string, string>();</div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  {</div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// TODO: Should be empty read-only map</span></div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  userData = <span class="keyword">new</span> HashMap<string, string>();</div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordflow">if</span> (format <= FORMAT_CHECKSUM)</div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  {</div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordtype">long</span> checksumNow = input.Checksum;</div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordtype">long</span> checksumThen = input.ReadLong();</div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (checksumNow != checksumThen)</div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> <a class="code" href="_index_searcher_8cs.html#abf029fdf5416b36731b7e3e3643f6eb0">CorruptIndexException</a>(<span class="stringliteral">"checksum mismatch in segments file"</span>);</div> |
| <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  success = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  {</div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  input.Close();</div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (!success)</div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  {</div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// Clear any segment infos we had loaded so we</span></div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// have a clean slate on retry:</span></div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  Clear();</div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  }</div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div> |
| <div class="line"><a name="l00361"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a6c8b7ac8e811650a8e950f8ce0ca55fc"> 361</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Read(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  {</div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  </div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  generation = lastGeneration = - 1;</div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  </div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">new</span> AnonymousClassFindSegmentsFile(<span class="keyword">this</span>, directory).Run();</div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  </div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// Only non-null after prepareCommit has been called and</span></div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">// before finishCommit is called</span></div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keyword">internal</span> <a class="code" href="_segment_infos_8cs.html#a75b36344b1d3bb7e82d49a97573813c3">ChecksumIndexOutput</a> pendingSegnOutput;</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  </div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keyword">private</span> <span class="keywordtype">void</span> Write(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  {</div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  </div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  System.String segmentFileName = GetNextSegmentFileName();</div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  </div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="comment">// Always advance the generation on write:</span></div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">if</span> (generation == - 1)</div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  {</div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  generation = 1;</div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  {</div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  generation++;</div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  }</div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  </div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  var segnOutput = <span class="keyword">new</span> <a class="code" href="_segment_infos_8cs.html#a75b36344b1d3bb7e82d49a97573813c3">ChecksumIndexOutput</a>(directory.CreateOutput(segmentFileName));</div> |
| <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  </div> |
| <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">bool</span> success = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  </div> |
| <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  {</div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  segnOutput.WriteInt(CURRENT_FORMAT); <span class="comment">// write FORMAT</span></div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  segnOutput.WriteLong(++version); <span class="comment">// every write changes</span></div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// the index</span></div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  segnOutput.WriteInt(counter); <span class="comment">// write counter</span></div> |
| <div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  segnOutput.WriteInt(Count); <span class="comment">// write infos</span></div> |
| <div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Count; i++)</div> |
| <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  {</div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  Info(i).Write(segnOutput);</div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  }</div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  segnOutput.WriteStringStringMap(userData);</div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  segnOutput.PrepareCommit();</div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  success = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  pendingSegnOutput = segnOutput;</div> |
| <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  }</div> |
| <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  {</div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">if</span> (!success)</div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  {</div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// We hit an exception above; try to close the file</span></div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// but suppress any exception:</span></div> |
| <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  {</div> |
| <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  segnOutput.Close();</div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  }</div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  {</div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="comment">// Suppress so we keep throwing the original exception</span></div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  }</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  {</div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="comment">// Try not to leave a truncated segments_N file in</span></div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// the index:</span></div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  directory.DeleteFile(segmentFileName);</div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  }</div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  {</div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="comment">// Suppress so we keep throwing the original exception</span></div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  }</div> |
| <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  }</div> |
| <div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  }</div> |
| <div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  }</div> |
| <div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  </div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  </div> |
| <div class="line"><a name="l00440"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#aa5d7093ba63baaf85037149ed7f8ba67"> 440</a></span>  <span class="keyword">public</span> System.Object Clone()</div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  {</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> sis = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>();</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this.Count; i++)</div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  {</div> |
| <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  sis.Add((<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a>)<span class="keyword">this</span>[i].Clone());</div> |
| <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div> |
| <div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  sis.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a17192eb2ee419dcb25455f120d8b935b">counter</a> = this.counter;</div> |
| <div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  sis.generation = this.generation;</div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  sis.lastGeneration = this.lastGeneration;</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="comment">// sis.pendingSegnOutput = this.pendingSegnOutput; // {{Aroush-2.9}} needed?</span></div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  sis.userData = <span class="keyword">new</span> HashMap<string, string>(userData);</div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  sis.version = this.version;</div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keywordflow">return</span> sis;</div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  }</div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keyword">public</span> <span class="keywordtype">long</span> <a class="code" href="_arabic_analyzer_8cs.html#a63c914dcb7d19365ff0f7c6ea7ef77c4">Version</a></div> |
| <div class="line"><a name="l00458"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a13a029f4010dd3994ec059a97446dfcd"> 458</a></span>  {</div> |
| <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> version; }</div> |
| <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  }</div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keyword">public</span> <span class="keywordtype">long</span> Generation</div> |
| <div class="line"><a name="l00463"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a1357a4318fda693e22091876ff8a546b"> 463</a></span>  {</div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> generation; }</div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  }</div> |
| <div class="line"><a name="l00466"></a><span class="lineno"> 466</span> </div> |
| <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keyword">public</span> <span class="keywordtype">long</span> LastGeneration</div> |
| <div class="line"><a name="l00468"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a6e9605e11fc095ffc7ad16a95a2d4f3b"> 468</a></span>  {</div> |
| <div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> lastGeneration; }</div> |
| <div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div> |
| <div class="line"><a name="l00471"></a><span class="lineno"> 471</span> </div> |
| <div class="line"><a name="l00475"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a50a48aff89e02201e2ae68cd5cf08d73"> 475</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">long</span> ReadCurrentVersion(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  {</div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="comment">// Fully read the segments file: this ensures that it's</span></div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="comment">// completely written so that if</span></div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="comment">// IndexWriter.prepareCommit has been called (but not</span></div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="comment">// yet commit), then the reader will still see itself as</span></div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="comment">// current:</span></div> |
| <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  var sis = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>();</div> |
| <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  sis.Read(directory);</div> |
| <div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">return</span> sis.version;</div> |
| <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="comment">//return (long) ((System.Int64) new AnonymousClassFindSegmentsFile1(directory).Run());</span></div> |
| <div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">//DIGY: AnonymousClassFindSegmentsFile1 can safely be deleted</span></div> |
| <div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div> |
| <div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  </div> |
| <div class="line"><a name="l00492"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a603c9e9336f6124f459c4a65163ecdd3"> 492</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> System.Collections.Generic.IDictionary<string, <span class="keywordtype">string</span>> ReadCurrentUserData(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  {</div> |
| <div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  var sis = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>();</div> |
| <div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  sis.Read(directory);</div> |
| <div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">return</span> sis.UserData;</div> |
| <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div> |
| <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  </div> |
| <div class="line"><a name="l00502"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#af5800ab80bf604a9a0897610579b3f81"> 502</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> SetInfoStream(System.IO.StreamWriter infoStream)</div> |
| <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  {</div> |
| <div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>.infoStream = infoStream;</div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  }</div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  </div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="comment">/* Advanced configuration of retry logic in loading</span></div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> segments_N file */</span></div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">int</span> defaultGenFileRetryCount = 10;</div> |
| <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">int</span> defaultGenFileRetryPauseMsec = 50;</div> |
| <div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">int</span> defaultGenLookaheadCount = 10;</div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div> |
| <div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> DefaultGenFileRetryCount</div> |
| <div class="line"><a name="l00519"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a107101ec175389690423cf94a7b68148"> 519</a></span>  {</div> |
| <div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> defaultGenFileRetryCount; }</div> |
| <div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keyword">set</span> { defaultGenFileRetryCount = value; }</div> |
| <div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  }</div> |
| <div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div> |
| <div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> DefaultGenFileRetryPauseMsec</div> |
| <div class="line"><a name="l00525"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a5d69521f22992407c34c20172547429d"> 525</a></span>  {</div> |
| <div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keyword">set</span> { defaultGenFileRetryPauseMsec = value; }</div> |
| <div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> defaultGenFileRetryPauseMsec; }</div> |
| <div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  }</div> |
| <div class="line"><a name="l00529"></a><span class="lineno"> 529</span> </div> |
| <div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> DefaultGenLookaheadCount</div> |
| <div class="line"><a name="l00537"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ada9a164f5ba415984ab11d4a79fcd316"> 537</a></span>  {</div> |
| <div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keyword">set</span> { defaultGenLookaheadCount = value; }</div> |
| <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> defaultGenLookaheadCount; }</div> |
| <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  }</div> |
| <div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div> |
| <div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keyword">public</span> <span class="keyword">static</span> StreamWriter InfoStream</div> |
| <div class="line"><a name="l00545"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#aea53295ee64e5284bfc51a7e7c0a9345"> 545</a></span>  {</div> |
| <div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> infoStream; }</div> |
| <div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  }</div> |
| <div class="line"><a name="l00548"></a><span class="lineno"> 548</span> </div> |
| <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keyword">private</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Message(System.String message)</div> |
| <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  {</div> |
| <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordflow">if</span> (infoStream != null)</div> |
| <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  {</div> |
| <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  infoStream.WriteLine(<span class="stringliteral">"SIS ["</span> + <a class="code" href="class_lucene_1_1_net_1_1_support_1_1_thread_class.html" title="Support class used to handle threads ">ThreadClass</a>.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_thread_class.html#ab6a0f57399d2c3a42a135745e9e3b80f" title="Gets the currently running thread ">Current</a>().<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_thread_class.html#a7b25ff3108e5dbcbc8dad5f6d7c6fe57" title="Gets or sets the name of the thread ">Name</a> + <span class="stringliteral">"]: "</span> + message);</div> |
| <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  }</div> |
| <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  }</div> |
| <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  </div> |
| <div class="line"><a name="l00565"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html"> 565</a></span>  <span class="keyword">public</span> <span class="keyword">abstract</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html" title="Utility class for executing code that needs to do something with the current segments file...">FindSegmentsFile</a></div> |
| <div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  {</div> |
| <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  </div> |
| <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keyword">internal</span> <a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory;</div> |
| <div class="line"><a name="l00569"></a><span class="lineno"> 569</span> </div> |
| <div class="line"><a name="l00570"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html#ae5f82dd345919a6a7053dc35b16e4ed0"> 570</a></span>  <span class="keyword">protected</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html" title="Utility class for executing code that needs to do something with the current segments file...">FindSegmentsFile</a>(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  {</div> |
| <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  this.directory = directory;</div> |
| <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div> |
| <div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  </div> |
| <div class="line"><a name="l00575"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html#a7e5263b83b6043e4aecd0bbd4ce04ba2"> 575</a></span>  <span class="keyword">public</span> System.Object Run()</div> |
| <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  {</div> |
| <div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">return</span> Run(null);</div> |
| <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  }</div> |
| <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  </div> |
| <div class="line"><a name="l00580"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos_1_1_find_segments_file.html#ae6e2dba01e294ccb64ebfe451a0e2912"> 580</a></span>  <span class="keyword">public</span> System.Object Run(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_commit.html" title="Expert: represents a single commit into an index as seen by the IndexDeletionPolicy or IndexReader...">IndexCommit</a> commit)</div> |
| <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  {</div> |
| <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">if</span> (commit != null)</div> |
| <div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  {</div> |
| <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">if</span> (directory != commit.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_commit.html#a202915c427e2803d1162af43dbbb705b" title="Returns the Store.Directory for the index.">Directory</a>)</div> |
| <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.IO.IOException(<span class="stringliteral">"the specified commit does not match the specified Directory"</span>);</div> |
| <div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">return</span> DoBody(commit.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_commit.html#ae046c896bc7ad5879150d1699508728f" title="Get the segments file (segments_N) associated with this commit point. ">SegmentsFileName</a>);</div> |
| <div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  }</div> |
| <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  </div> |
| <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  System.String segmentFileName = null;</div> |
| <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keywordtype">long</span> lastGen = - 1;</div> |
| <div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordtype">long</span> gen = 0;</div> |
| <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordtype">int</span> genLookaheadCount = 0;</div> |
| <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  System.IO.IOException exc = null;</div> |
| <div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keywordtype">bool</span> retry = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  </div> |
| <div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keywordtype">int</span> method = 0;</div> |
| <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  </div> |
| <div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="comment">// Loop until we succeed in calling doBody() without</span></div> |
| <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="comment">// hitting an IOException. An IOException most likely</span></div> |
| <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="comment">// means a commit was in process and has finished, in</span></div> |
| <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="comment">// the time it took us to load the now-old infos files</span></div> |
| <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="comment">// (and segments files). It's also possible it's a</span></div> |
| <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="comment">// true error (corrupt index). To distinguish these,</span></div> |
| <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="comment">// on each retry we must see "forward progress" on</span></div> |
| <div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="comment">// which generation we are trying to load. If we</span></div> |
| <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="comment">// don't, then the original error is real and we throw</span></div> |
| <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="comment">// it.</span></div> |
| <div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  </div> |
| <div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="comment">// We have three methods for determining the current</span></div> |
| <div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="comment">// generation. We try the first two in parallel, and</span></div> |
| <div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="comment">// fall back to the third when necessary.</span></div> |
| <div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  </div> |
| <div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div> |
| <div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  {</div> |
| <div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  </div> |
| <div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordflow">if</span> (0 == method)</div> |
| <div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  {</div> |
| <div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  </div> |
| <div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="comment">// Method 1: list the directory and use the highest</span></div> |
| <div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="comment">// segments_N file. This method works well as long</span></div> |
| <div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="comment">// as there is no stale caching on the directory</span></div> |
| <div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="comment">// contents (NOTE: NFS clients often have such stale</span></div> |
| <div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="comment">// caching):</span></div> |
| <div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  System.String[] files = null;</div> |
| <div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  </div> |
| <div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordtype">long</span> genA = - 1;</div> |
| <div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  </div> |
| <div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  files = directory.ListAll();</div> |
| <div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  </div> |
| <div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="keywordflow">if</span> (files != null)</div> |
| <div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  genA = Lucene.Net.Index.SegmentInfos.GetCurrentSegmentGeneration(files);</div> |
| <div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  </div> |
| <div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"directory listing genA="</span> + genA);</div> |
| <div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  </div> |
| <div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="comment">// Method 2: open segments.gen and read its</span></div> |
| <div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// contents. Then we take the larger of the two</span></div> |
| <div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="comment">// gens. This way, if either approach is hitting</span></div> |
| <div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="comment">// a stale cache (NFS) we have a better chance of</span></div> |
| <div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="comment">// getting the right generation.</span></div> |
| <div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordtype">long</span> genB = - 1;</div> |
| <div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < Lucene.Net.Index.SegmentInfos.defaultGenFileRetryCount; i++)</div> |
| <div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  {</div> |
| <div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <a class="code" href="_byte_slice_reader_8cs.html#a12195e9150e4d7af469b90ac95cc47ee">IndexInput</a> genInput = null;</div> |
| <div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  {</div> |
| <div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  genInput = directory.OpenInput(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#ac50f0ab232dedabd1106c7128024abb1" title="Name of the generation reference file name ">SEGMENTS_GEN</a>);</div> |
| <div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  }</div> |
| <div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="keywordflow">catch</span> (System.IO.FileNotFoundException e)</div> |
| <div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  {</div> |
| <div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"segments.gen open: FileNotFoundException "</span> + e);</div> |
| <div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  }</div> |
| <div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">catch</span> (System.IO.IOException e)</div> |
| <div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  {</div> |
| <div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"segments.gen open: IOException "</span> + e);</div> |
| <div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  }</div> |
| <div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  </div> |
| <div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="keywordflow">if</span> (genInput != null)</div> |
| <div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  {</div> |
| <div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  {</div> |
| <div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keywordtype">int</span> version = genInput.ReadInt();</div> |
| <div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">if</span> (version == Lucene.Net.Index.SegmentInfos.FORMAT_LOCKLESS)</div> |
| <div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  {</div> |
| <div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keywordtype">long</span> gen0 = genInput.ReadLong();</div> |
| <div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="keywordtype">long</span> gen1 = genInput.ReadLong();</div> |
| <div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"fallback check: "</span> + gen0 + <span class="stringliteral">"; "</span> + gen1);</div> |
| <div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="keywordflow">if</span> (gen0 == gen1)</div> |
| <div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  {</div> |
| <div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="comment">// The file is consistent.</span></div> |
| <div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  genB = gen0;</div> |
| <div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  }</div> |
| <div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  }</div> |
| <div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  }</div> |
| <div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keywordflow">catch</span> (System.IO.IOException)</div> |
| <div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  {</div> |
| <div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="comment">// will retry</span></div> |
| <div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  }</div> |
| <div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  {</div> |
| <div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  genInput.Close();</div> |
| <div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  }</div> |
| <div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  }</div> |
| <div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  </div> |
| <div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  System.Threading.Thread.Sleep(<span class="keyword">new</span> TimeSpan((System.Int64) 10000 * Lucene.Net.Index.SegmentInfos.defaultGenFileRetryPauseMsec));</div> |
| <div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  </div> |
| <div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  </div> |
| <div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  }</div> |
| <div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  </div> |
| <div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  Lucene.Net.Index.SegmentInfos.Message(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#ac50f0ab232dedabd1106c7128024abb1" title="Name of the generation reference file name ">SEGMENTS_GEN</a> + <span class="stringliteral">" check: genB="</span> + genB);</div> |
| <div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  </div> |
| <div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="comment">// Pick the larger of the two gen's:</span></div> |
| <div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keywordflow">if</span> (genA > genB)</div> |
| <div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  gen = genA;</div> |
| <div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  gen = genB;</div> |
| <div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  </div> |
| <div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">if</span> (gen == - 1)</div> |
| <div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  {</div> |
| <div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.IO.FileNotFoundException(<span class="stringliteral">"no segments* file found in "</span> + directory + <span class="stringliteral">": files:"</span> + <span class="keywordtype">string</span>.Join(<span class="stringliteral">" "</span>, files));</div> |
| <div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  }</div> |
| <div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  }</div> |
| <div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  </div> |
| <div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="comment">// Third method (fallback if first & second methods</span></div> |
| <div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="comment">// are not reliable): since both directory cache and</span></div> |
| <div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="comment">// file contents cache seem to be stale, just</span></div> |
| <div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="comment">// advance the generation.</span></div> |
| <div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordflow">if</span> (1 == method || (0 == method && lastGen == gen && retry))</div> |
| <div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  {</div> |
| <div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  </div> |
| <div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  method = 1;</div> |
| <div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  </div> |
| <div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  <span class="keywordflow">if</span> (genLookaheadCount < Lucene.Net.Index.SegmentInfos.defaultGenLookaheadCount)</div> |
| <div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  {</div> |
| <div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  gen++;</div> |
| <div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  genLookaheadCount++;</div> |
| <div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"look ahead increment gen to "</span> + gen);</div> |
| <div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  }</div> |
| <div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  }</div> |
| <div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  </div> |
| <div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <span class="keywordflow">if</span> (lastGen == gen)</div> |
| <div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  {</div> |
| <div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  </div> |
| <div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="comment">// This means we're about to try the same</span></div> |
| <div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="comment">// segments_N last tried. This is allowed,</span></div> |
| <div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="comment">// exactly once, because writer could have been in</span></div> |
| <div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <span class="comment">// the process of writing segments_N last time.</span></div> |
| <div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  </div> |
| <div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordflow">if</span> (retry)</div> |
| <div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  {</div> |
| <div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="comment">// OK, we've tried the same segments_N file</span></div> |
| <div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="comment">// twice in a row, so this must be a real</span></div> |
| <div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <span class="comment">// error. We throw the original exception we</span></div> |
| <div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="comment">// got.</span></div> |
| <div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="keywordflow">throw</span> exc;</div> |
| <div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  }</div> |
| <div class="line"><a name="l00738"></a><span class="lineno"> 738</span> </div> |
| <div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  retry = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  }</div> |
| <div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (0 == method)</div> |
| <div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  {</div> |
| <div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="comment">// Segment file has advanced since our last loop, so</span></div> |
| <div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="comment">// reset retry:</span></div> |
| <div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  retry = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  }</div> |
| <div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  </div> |
| <div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  lastGen = gen;</div> |
| <div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  </div> |
| <div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  segmentFileName = <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, gen);</div> |
| <div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  </div> |
| <div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  {</div> |
| <div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  System.Object v = DoBody(segmentFileName);</div> |
| <div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"success on "</span> + segmentFileName);</div> |
| <div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  </div> |
| <div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="keywordflow">return</span> v;</div> |
| <div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  }</div> |
| <div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">catch</span> (System.IO.IOException err)</div> |
| <div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  {</div> |
| <div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  </div> |
| <div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="comment">// Save the original root cause:</span></div> |
| <div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keywordflow">if</span> (exc == null)</div> |
| <div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  {</div> |
| <div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  exc = err;</div> |
| <div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  }</div> |
| <div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  </div> |
| <div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"primary Exception on '"</span> + segmentFileName + <span class="stringliteral">"': "</span> + err + <span class="stringliteral">"'; will retry: retry="</span> + retry + <span class="stringliteral">"; gen = "</span> + gen);</div> |
| <div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  </div> |
| <div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  <span class="keywordflow">if</span> (!retry && gen > 1)</div> |
| <div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  {</div> |
| <div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  </div> |
| <div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="comment">// This is our first time trying this segments</span></div> |
| <div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="comment">// file (because retry is false), and, there is</span></div> |
| <div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="comment">// possibly a segments_(N-1) (because gen > 1).</span></div> |
| <div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="comment">// So, check if the segments_(N-1) exists and</span></div> |
| <div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  <span class="comment">// try it if so:</span></div> |
| <div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  System.String prevSegmentFileName = <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a905c04585f337312d3d8d9019fb088b1" title="Computes the full file name from base, extension and generation. If the generation is -1...">FileNameFromGeneration</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html" title="Useful constants representing filenames and extensions used by lucene">IndexFileNames</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_file_names.html#a7d1621e5bea0a2dcdb35a8ad802d090f" title="Name of the index segment file ">SEGMENTS</a>, <span class="stringliteral">""</span>, gen - 1);</div> |
| <div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  </div> |
| <div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="keywordtype">bool</span> prevExists;</div> |
| <div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  prevExists = directory.FileExists(prevSegmentFileName);</div> |
| <div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  </div> |
| <div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <span class="keywordflow">if</span> (prevExists)</div> |
| <div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  {</div> |
| <div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"fallback to prior segment file '"</span> + prevSegmentFileName + <span class="stringliteral">"'"</span>);</div> |
| <div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  {</div> |
| <div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  System.Object v = DoBody(prevSegmentFileName);</div> |
| <div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="keywordflow">if</span> (exc != null)</div> |
| <div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  {</div> |
| <div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"success on fallback "</span> + prevSegmentFileName);</div> |
| <div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  }</div> |
| <div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="keywordflow">return</span> v;</div> |
| <div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  }</div> |
| <div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keywordflow">catch</span> (System.IO.IOException err2)</div> |
| <div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  {</div> |
| <div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  Lucene.Net.Index.SegmentInfos.Message(<span class="stringliteral">"secondary Exception on '"</span> + prevSegmentFileName + <span class="stringliteral">"': "</span> + err2 + <span class="stringliteral">"'; will retry"</span>);</div> |
| <div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  }</div> |
| <div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  }</div> |
| <div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  }</div> |
| <div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  }</div> |
| <div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  }</div> |
| <div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  }</div> |
| <div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  </div> |
| <div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keyword">abstract</span> System.Object DoBody(System.String segmentFileName);</div> |
| <div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  }</div> |
| <div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  </div> |
| <div class="line"><a name="l00818"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a3a72e116f4f9d587017cb0c030919a3b"> 818</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> Range(<span class="keywordtype">int</span> first, <span class="keywordtype">int</span> last)</div> |
| <div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  {</div> |
| <div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> infos = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>();</div> |
| <div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  infos.AddRange(this.GetRange(first, last - first));</div> |
| <div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="keywordflow">return</span> infos;</div> |
| <div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  }</div> |
| <div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  </div> |
| <div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="comment">// Carry over generation numbers from another SegmentInfos</span></div> |
| <div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> UpdateGeneration(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> other)</div> |
| <div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  {</div> |
| <div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  lastGeneration = other.lastGeneration;</div> |
| <div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  generation = other.generation;</div> |
| <div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  version = other.version;</div> |
| <div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  }</div> |
| <div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  </div> |
| <div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> RollbackCommit(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir)</div> |
| <div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  {</div> |
| <div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keywordflow">if</span> (pendingSegnOutput != null)</div> |
| <div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  {</div> |
| <div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  {</div> |
| <div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  pendingSegnOutput.Close();</div> |
| <div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  }</div> |
| <div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  {</div> |
| <div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <span class="comment">// Suppress so we keep throwing the original exception</span></div> |
| <div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="comment">// in our caller</span></div> |
| <div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  }</div> |
| <div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  </div> |
| <div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  <span class="comment">// Must carefully compute fileName from "generation"</span></div> |
| <div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">// since lastGeneration isn't incremented:</span></div> |
| <div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  {</div> |
| <div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  System.String segmentFileName = IndexFileNames.FileNameFromGeneration(IndexFileNames.SEGMENTS, <span class="stringliteral">""</span>, generation);</div> |
| <div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  dir.DeleteFile(segmentFileName);</div> |
| <div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  }</div> |
| <div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  {</div> |
| <div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="comment">// Suppress so we keep throwing the original exception</span></div> |
| <div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="comment">// in our caller</span></div> |
| <div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  }</div> |
| <div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  pendingSegnOutput = null;</div> |
| <div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  }</div> |
| <div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  }</div> |
| <div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  </div> |
| <div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> PrepareCommit(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir)</div> |
| <div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  {</div> |
| <div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  <span class="keywordflow">if</span> (pendingSegnOutput != null)</div> |
| <div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.SystemException(<span class="stringliteral">"prepareCommit was already called"</span>);</div> |
| <div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  Write(dir);</div> |
| <div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  }</div> |
| <div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  </div> |
| <div class="line"><a name="l00882"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ad8f7fa9954554726d9bc32eac3cda8ac"> 882</a></span>  <span class="keyword">public</span> System.Collections.Generic.ICollection<<span class="keywordtype">string</span>> Files(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir, <span class="keywordtype">bool</span> includeSegmentsFile)</div> |
| <div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  {</div> |
| <div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  System.Collections.Generic.HashSet<<span class="keywordtype">string</span>> files = <span class="keyword">new</span> System.Collections.Generic.HashSet<<span class="keywordtype">string</span>>();</div> |
| <div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keywordflow">if</span> (includeSegmentsFile)</div> |
| <div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  {</div> |
| <div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  files.Add(GetCurrentSegmentFileName());</div> |
| <div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  }</div> |
| <div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <span class="keywordtype">int</span> size = Count;</div> |
| <div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size; i++)</div> |
| <div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  {</div> |
| <div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a> info = Info(i);</div> |
| <div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <span class="keywordflow">if</span> (info.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html#a77fa20e4bba0bfcc0212378685c1b353">dir</a> == dir)</div> |
| <div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  {</div> |
| <div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  files.UnionWith(Info(i).Files());</div> |
| <div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  }</div> |
| <div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  }</div> |
| <div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  <span class="keywordflow">return</span> files;</div> |
| <div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  }</div> |
| <div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  </div> |
| <div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> FinishCommit(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir)</div> |
| <div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  {</div> |
| <div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  <span class="keywordflow">if</span> (pendingSegnOutput == null)</div> |
| <div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.SystemException(<span class="stringliteral">"prepareCommit was not called"</span>);</div> |
| <div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  <span class="keywordtype">bool</span> success = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  {</div> |
| <div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  pendingSegnOutput.FinishCommit();</div> |
| <div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  pendingSegnOutput.Close();</div> |
| <div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  pendingSegnOutput = null;</div> |
| <div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  success = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  }</div> |
| <div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  {</div> |
| <div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keywordflow">if</span> (!success)</div> |
| <div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  RollbackCommit(dir);</div> |
| <div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  }</div> |
| <div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  </div> |
| <div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="comment">// NOTE: if we crash here, we have left a segments_N</span></div> |
| <div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  <span class="comment">// file in the directory in a possibly corrupt state (if</span></div> |
| <div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="comment">// some bytes made it to stable storage and others</span></div> |
| <div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  <span class="comment">// didn't). But, the segments_N file includes checksum</span></div> |
| <div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="comment">// at the end, which should catch this case. So when a</span></div> |
| <div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  <span class="comment">// reader tries to read it, it will throw a</span></div> |
| <div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="comment">// CorruptIndexException, which should cause the retry</span></div> |
| <div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="comment">// logic in SegmentInfos to kick in and load the last</span></div> |
| <div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="comment">// good (previous) segments_N-1 file.</span></div> |
| <div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  </div> |
| <div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  System.String fileName = IndexFileNames.FileNameFromGeneration(IndexFileNames.SEGMENTS, <span class="stringliteral">""</span>, generation);</div> |
| <div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  success = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  {</div> |
| <div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  dir.Sync(fileName);</div> |
| <div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  success = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  }</div> |
| <div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  {</div> |
| <div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">if</span> (!success)</div> |
| <div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  {</div> |
| <div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  {</div> |
| <div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  dir.DeleteFile(fileName);</div> |
| <div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  }</div> |
| <div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  {</div> |
| <div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  <span class="comment">// Suppress so we keep throwing the original exception</span></div> |
| <div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  }</div> |
| <div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  }</div> |
| <div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  }</div> |
| <div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  </div> |
| <div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  lastGeneration = generation;</div> |
| <div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  </div> |
| <div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  {</div> |
| <div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> genOutput = dir.CreateOutput(IndexFileNames.SEGMENTS_GEN);</div> |
| <div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  {</div> |
| <div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  genOutput.WriteInt(FORMAT_LOCKLESS);</div> |
| <div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  genOutput.WriteLong(generation);</div> |
| <div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  genOutput.WriteLong(generation);</div> |
| <div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  }</div> |
| <div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  <span class="keywordflow">finally</span></div> |
| <div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  {</div> |
| <div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  genOutput.Close();</div> |
| <div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  }</div> |
| <div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  }</div> |
| <div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  <span class="keywordflow">catch</span> (System.Exception)</div> |
| <div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  {</div> |
| <div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  <span class="comment">// It's OK if we fail to write this file since it's</span></div> |
| <div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="comment">// used only as one of the retry fallbacks.</span></div> |
| <div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  }</div> |
| <div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  }</div> |
| <div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  </div> |
| <div class="line"><a name="l00977"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a698d5125725eda1aea7069effef78c06"> 977</a></span>  <span class="keyword">public</span> <span class="comment">/*internal*/</span> <span class="keywordtype">void</span> Commit(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir)</div> |
| <div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  {</div> |
| <div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  PrepareCommit(dir);</div> |
| <div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  FinishCommit(dir);</div> |
| <div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  }</div> |
| <div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  </div> |
| <div class="line"><a name="l00983"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ac612ba3882091d08f6644afe8578d17b"> 983</a></span>  <span class="keyword">public</span> System.String SegString(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory)</div> |
| <div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  {</div> |
| <div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  lock (<span class="keyword">this</span>)</div> |
| <div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  {</div> |
| <div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  var buffer = <span class="keyword">new</span> System.Text.StringBuilder();</div> |
| <div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keywordtype">int</span> count = Count;</div> |
| <div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < count; i++)</div> |
| <div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  {</div> |
| <div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  <span class="keywordflow">if</span> (i > 0)</div> |
| <div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  {</div> |
| <div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  buffer.Append(<span class="charliteral">' '</span>);</div> |
| <div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  }</div> |
| <div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a> info = Info(i);</div> |
| <div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  buffer.Append(info.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html#acbb0152ec9718b435a9e44e73c4fe810" title="Used for debugging ">SegString</a>(directory));</div> |
| <div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  <span class="keywordflow">if</span> (info.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html#a77fa20e4bba0bfcc0212378685c1b353">dir</a> != directory)</div> |
| <div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  buffer.Append(<span class="stringliteral">"**"</span>);</div> |
| <div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  }</div> |
| <div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  <span class="keywordflow">return</span> buffer.ToString();</div> |
| <div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  }</div> |
| <div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  }</div> |
| <div class="line"><a name="l01003"></a><span class="lineno"> 1003</span> </div> |
| <div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keyword">public</span> IDictionary<string, string> UserData</div> |
| <div class="line"><a name="l01005"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#af07da15e9ae8dc41c4514d3d64885afa"> 1005</a></span>  {</div> |
| <div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> userData; }</div> |
| <div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  <span class="keyword">internal</span> <span class="keyword">set</span> {</div> |
| <div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  userData = value ?? <span class="keyword">new</span> HashMap<string, string>();</div> |
| <div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  }</div> |
| <div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  }</div> |
| <div class="line"><a name="l01011"></a><span class="lineno"> 1011</span> </div> |
| <div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> Replace(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a> other)</div> |
| <div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  {</div> |
| <div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  Clear();</div> |
| <div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  AddRange(other);</div> |
| <div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  lastGeneration = other.lastGeneration;</div> |
| <div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  }</div> |
| <div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  </div> |
| <div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  <span class="comment">// Used only for testing</span></div> |
| <div class="line"><a name="l01024"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#ac1d30e79304cbcec7d526b64532ce0d7"> 1024</a></span>  <span class="keyword">public</span> <span class="keywordtype">bool</span> HasExternalSegments(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> dir)</div> |
| <div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  {</div> |
| <div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="keywordtype">int</span> numSegments = Count;</div> |
| <div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < numSegments; i++)</div> |
| <div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  <span class="keywordflow">if</span> (Info(i).dir != dir)</div> |
| <div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  }</div> |
| <div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> </div> |
| <div class="line"><a name="l01033"></a><span class="lineno"> 1033</span> <span class="preprocessor"> #region Lucene.NET (Equals & GetHashCode )</span></div> |
| <div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> </div> |
| <div class="line"><a name="l01036"></a><span class="lineno"> 1036</span> </div> |
| <div class="line"><a name="l01037"></a><span class="lineno"> 1037</span> </div> |
| <div class="line"><a name="l01038"></a><span class="lineno"> 1038</span> </div> |
| <div class="line"><a name="l01039"></a><span class="lineno"> 1039</span> </div> |
| <div class="line"><a name="l01040"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#af153e70b8063cd015da4488dc0161c3c"> 1040</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> Equals(<span class="keywordtype">object</span> obj)</div> |
| <div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  {</div> |
| <div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <span class="keywordflow">if</span> (obj == null) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l01043"></a><span class="lineno"> 1043</span> </div> |
| <div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  var objToCompare = obj as <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html" title="A collection of segmentInfo objects with methods for operating on those segments in relation to the f...">SegmentInfos</a>;</div> |
| <div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  <span class="keywordflow">if</span> (objToCompare == null) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> </div> |
| <div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  <span class="keywordflow">if</span> (this.Count != objToCompare.Count) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l01048"></a><span class="lineno"> 1048</span> </div> |
| <div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> idx = 0; idx < this.Count; idx++)</div> |
| <div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  {</div> |
| <div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  <span class="keywordflow">if</span> (!<span class="keyword">this</span>[idx].Equals(objToCompare[idx])) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  }</div> |
| <div class="line"><a name="l01053"></a><span class="lineno"> 1053</span> </div> |
| <div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  }</div> |
| <div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> </div> |
| <div class="line"><a name="l01061"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_infos.html#a23afd3b1e502d464ef61179cb9bf0907"> 1061</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</div> |
| <div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  {</div> |
| <div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  <span class="keywordtype">int</span> h = 1;</div> |
| <div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this.Count; i++)</div> |
| <div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  {</div> |
| <div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a> si = (<span class="keyword">this</span>[i] as <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html" title="Information about a segment such as it's name, directory, and files related to the segment...">SegmentInfo</a>);</div> |
| <div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  h = 31 * h + (si == null ? 0 : si.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_info.html#a5cfe814034d4b045b3cb4c81be116a3e">GetHashCode</a>());</div> |
| <div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  }</div> |
| <div class="line"><a name="l01069"></a><span class="lineno"> 1069</span> </div> |
| <div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  <span class="keywordflow">return</span> h;</div> |
| <div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  }</div> |
| <div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> <span class="preprocessor"> #endregion</span></div> |
| <div class="line"><a name="l01073"></a><span class="lineno"> 1073</span> <span class="preprocessor"></span> }</div> |
| <div class="line"><a name="l01074"></a><span class="lineno"> 1074</span> }</div> |
| </div><!-- fragment --></div><!-- contents --> |
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