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| <div class="title">FormatPostingsPositionsWriter.cs</div> </div> |
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| <a href="_format_postings_positions_writer_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> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"><a class="code" href="_format_postings_positions_writer_8cs.html#a12195e9150e4d7af469b90ac95cc47ee"> 20</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="l00021"></a><span class="lineno"><a class="code" href="_format_postings_positions_writer_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5"> 21</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="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>Lucene.Net.Index</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_positions_writer.html"> 26</a></span>  sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_positions_writer.html">FormatPostingsPositionsWriter</a>:<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_positions_consumer.html">FormatPostingsPositionsConsumer</a></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  {</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_docs_writer.html" title="Consumes doc and freq, writing them using the current index file format ">FormatPostingsDocsWriter</a> parent;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">internal</span> <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> out_Renamed;</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>  <span class="keyword">internal</span> <span class="keywordtype">bool</span> omitTermFreqAndPositions;</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">internal</span> <span class="keywordtype">bool</span> storePayloads;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">internal</span> <span class="keywordtype">int</span> lastPayloadLength = - 1;</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_positions_writer.html">FormatPostingsPositionsWriter</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_segment_write_state.html">SegmentWriteState</a> state, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_docs_writer.html" title="Consumes doc and freq, writing them using the current index file format ">FormatPostingsDocsWriter</a> parent)</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  this.parent = parent;</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  omitTermFreqAndPositions = parent.omitTermFreqAndPositions;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (parent.parent.parent.fieldInfos.HasProx())</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="comment">// At least one field does not omit TF, so create the</span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// prox file</span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  System.String fileName = <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>.SegmentFileName(parent.parent.parent.segment, <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#a2f431e091d6ffb9704e098a2ff483cbb" title="Extension of prox postings file ">PROX_EXTENSION</a>);</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  state.flushedFiles.Add(fileName);</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  out_Renamed = parent.parent.parent.dir.CreateOutput(fileName);</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  parent.skipListWriter.SetProxOutput(out_Renamed);</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Every field omits TF so we will write no prox file</span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  out_Renamed = null;</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>  </div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">internal</span> <span class="keywordtype">int</span> lastPosition;</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> AddPosition(<span class="keywordtype">int</span> position, byte[] payload, <span class="keywordtype">int</span> payloadOffset, <span class="keywordtype">int</span> payloadLength)</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>  System.Diagnostics.Debug.Assert(!omitTermFreqAndPositions, <span class="stringliteral">"omitTermFreqAndPositions is true"</span>);</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  System.Diagnostics.Debug.Assert(out_Renamed != null);</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="keywordtype">int</span> delta = position - lastPosition;</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  lastPosition = position;</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">if</span> (storePayloads)</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>  <span class="keywordflow">if</span> (payloadLength != lastPayloadLength)</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  lastPayloadLength = payloadLength;</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  out_Renamed.WriteVInt((delta << 1) | 1);</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  out_Renamed.WriteVInt(payloadLength);</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  out_Renamed.WriteVInt(delta << 1);</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (payloadLength > 0)</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  out_Renamed.WriteBytes(payload, payloadLength);</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  out_Renamed.WriteVInt(delta);</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> SetField(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_field_info.html">FieldInfo</a> fieldInfo)</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  {</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  omitTermFreqAndPositions = fieldInfo.omitTermFreqAndPositions;</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  storePayloads = omitTermFreqAndPositions?<span class="keyword">false</span>:fieldInfo.storePayloads;</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Finish()</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  lastPosition = 0;</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  lastPayloadLength = - 1;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div> |
| <div class="line"><a name="l00094"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_format_postings_positions_writer.html#a065eab55ee706a3b6ce94efa08dfcba8"> 94</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Dispose()</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  {</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// Move to protected method if class becomes unsealed</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (out_Renamed != null)</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  out_Renamed.Close();</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div> |
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