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| <div class="title">TermVectorsWriter.cs</div> </div> |
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| <div class="contents"> |
| <a href="_term_vectors_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="_term_vectors_writer_8cs.html#ac7fdd4fc5daf7ce3e6be563664f8bf64"> 20</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="l00021"></a><span class="lineno"><a class="code" href="_term_vectors_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"><a class="code" href="_term_vectors_writer_8cs.html#a91d1d7626bdff1c6780b0307ad58348e"> 22</a></span> <span class="keyword">using</span> <a class="code" href="_abstract_field_8cs.html#a91d1d7626bdff1c6780b0307ad58348e">StringHelper</a> = Lucene.Net.Util.StringHelper;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"><a class="code" href="_term_vectors_writer_8cs.html#ac6445f47719a63eecd9434c88ae8b7df"> 23</a></span> <span class="keyword">using</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a> = Lucene.Net.Util.UnicodeUtil;</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> <span class="keyword">namespace </span>Lucene.Net.Index</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html"> 27</a></span>  sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html">TermVectorsWriter</a> : IDisposable</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>  </div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">private</span> readonly <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> tvx = null;</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">private</span> readonly <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> tvd = null;</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">private</span> readonly <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> tvf = null;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">private</span> readonly <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_field_infos.html" title="Access to the Fieldable Info file that describes document fields and whether or not they are indexed...">FieldInfos</a> fieldInfos;</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">internal</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result[] utf8Results = <span class="keyword">new</span>[]{<span class="keyword">new</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result(), <span class="keyword">new</span> <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result()};</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html#ab55c8d1d0c467863da4378e86b845258"> 36</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html">TermVectorsWriter</a>(<a class="code" href="_syns2_index_8cs.html#aada057080323f6e867d8f9c189276716">Directory</a> directory, System.String segment, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_field_infos.html" title="Access to the Fieldable Info file that describes document fields and whether or not they are indexed...">FieldInfos</a> fieldInfos)</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">// Open files for TermVector storage</span></div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  tvx = directory.CreateOutput(segment + <span class="stringliteral">"."</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#a65045d54e9fedc470934b1afcb8db278" title="Extension of vectors index file ">VECTORS_INDEX_EXTENSION</a>);</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  tvx.WriteInt(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.FORMAT_CURRENT);</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  tvd = directory.CreateOutput(segment + <span class="stringliteral">"."</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#aabfd7525c83e86d942648e9945877db0" title="Extension of vectors documents file ">VECTORS_DOCUMENTS_EXTENSION</a>);</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  tvd.WriteInt(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.FORMAT_CURRENT);</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  tvf = directory.CreateOutput(segment + <span class="stringliteral">"."</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#a2017f177fb26a934498e03911b1e08a6" title="Extension of vectors fields file ">VECTORS_FIELDS_EXTENSION</a>);</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  tvf.WriteInt(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.FORMAT_CURRENT);</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  this.fieldInfos = fieldInfos;</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>  </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html#afe7413d505a1ca281c860f745734a74e"> 56</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> AddAllDocVectors(<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html" title="Provides access to stored term vector of a document field. The vector consists of the name of the fie...">ITermFreqVector</a>[] vectors)</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>  </div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  tvx.WriteLong(tvd.FilePointer);</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  tvx.WriteLong(tvf.FilePointer);</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (vectors != null)</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="keywordtype">int</span> numFields = vectors.Length;</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  tvd.WriteVInt(numFields);</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  var fieldPointers = <span class="keyword">new</span> <span class="keywordtype">long</span>[numFields];</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < numFields; i++)</div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  fieldPointers[i] = tvf.FilePointer;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span> fieldNumber = fieldInfos.FieldNumber(vectors[i].<a class="code" href="_syns2_index_8cs.html#a6d7b175c6799cf1d18e9493727d23fc6">Field</a>);</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// 1st pass: write field numbers to tvd</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  tvd.WriteVInt(fieldNumber);</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">int</span> numTerms = vectors[i].<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html#ab34a8a8864a856841b9591113996180c" title="The number of terms in the term vector. ">Size</a>;</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  tvf.WriteVInt(numTerms);</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>  <a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html" title="Extends TermFreqVector to provide additional information about positions in which each of the terms i...">TermPositionVector</a> tpVector;</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>  byte bits;</div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">bool</span> storePositions;</div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">bool</span> storeOffsets;</div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (vectors[i] is <a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html" title="Extends TermFreqVector to provide additional information about positions in which each of the terms i...">TermPositionVector</a>)</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  {</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// May have positions & offsets</span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  tpVector = (TermPositionVector) vectors[i];</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  storePositions = tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html#ab34a8a8864a856841b9591113996180c" title="The number of terms in the term vector. ">Size</a> > 0 && tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html#a0fdf7e199cd02ab8bc6b767b75bf0ca2" title="Returns an array of positions in which the term is found. Terms are identified by the index at which ...">GetTermPositions</a>(0) != null;</div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  storeOffsets = tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html#ab34a8a8864a856841b9591113996180c" title="The number of terms in the term vector. ">Size</a> > 0 && tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html#a39e0116361f7e7578e0576aae85b588f" title="Returns an array of TermVectorOffsetInfo in which the term is found. May return null if offsets have ...">GetOffsets</a>(0) != null;</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  bits = (byte) ((storePositions?<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.STORE_POSITIONS_WITH_TERMVECTOR: (byte) 0) + (storeOffsets?<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.STORE_OFFSET_WITH_TERMVECTOR: (byte) 0));</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  {</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  tpVector = null;</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  bits = 0;</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  storePositions = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  storeOffsets = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  tvf.WriteVInt(bits);</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  </div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  System.String[] terms = vectors[i].<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html#a9a0fd66926229e5509e05a7e7358e8f5">GetTerms</a>();</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span>[] freqs = vectors[i].<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_i_term_freq_vector.html#ac369bbcf6b0c91d554f7b5c6ad037fa8" title="Array of term frequencies. Locations of the array correspond one to one to the terms in the array obt...">GetTermFrequencies</a>();</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  </div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> utf8Upto = 0;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  utf8Results[1].length = 0;</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < numTerms; j++)</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF16toUTF8(terms[j], 0, terms[j].Length, utf8Results[utf8Upto]);</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  </div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">int</span> start = <a class="code" href="_abstract_field_8cs.html#a91d1d7626bdff1c6780b0307ad58348e">StringHelper</a>.BytesDifference(utf8Results[1 - utf8Upto].result, utf8Results[1 - utf8Upto].length, utf8Results[utf8Upto].result, utf8Results[utf8Upto].length);</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">int</span> length = utf8Results[utf8Upto].length - start;</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  tvf.WriteVInt(start); <span class="comment">// write shared prefix length</span></div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  tvf.WriteVInt(length); <span class="comment">// write delta length</span></div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  tvf.WriteBytes(utf8Results[utf8Upto].result, start, length); <span class="comment">// write delta bytes</span></div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  utf8Upto = 1 - utf8Upto;</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">int</span> termFreq = freqs[j];</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  </div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  tvf.WriteVInt(termFreq);</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (storePositions)</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  {</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span>[] positions = tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html#a0fdf7e199cd02ab8bc6b767b75bf0ca2" title="Returns an array of positions in which the term is found. Terms are identified by the index at which ...">GetTermPositions</a>(j);</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (positions == null)</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.SystemException(<span class="stringliteral">"Trying to write positions that are null!"</span>);</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  System.Diagnostics.Debug.Assert(positions.Length == termFreq);</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  </div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// use delta encoding for positions</span></div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span> lastPosition = 0;</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">foreach</span> (<span class="keywordtype">int</span> position <span class="keywordflow">in</span> positions)</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  {</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  tvf.WriteVInt(position - lastPosition);</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  lastPosition = position;</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</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="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (storeOffsets)</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="struct_lucene_1_1_net_1_1_index_1_1_term_vector_offset_info.html" title="The TermVectorOffsetInfo class holds information pertaining to a Term in a Lucene.Net.Index.TermPositionVector's offset information. This offset information is the character offset as set during the Analysis phase (and thus may not be the actual offset in the original content). ">TermVectorOffsetInfo</a>[] offsets = tpVector.<a class="code" href="interface_lucene_1_1_net_1_1_index_1_1_term_position_vector.html#a39e0116361f7e7578e0576aae85b588f" title="Returns an array of TermVectorOffsetInfo in which the term is found. May return null if offsets have ...">GetOffsets</a>(j);</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (offsets == null)</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> System.SystemException(<span class="stringliteral">"Trying to write offsets that are null!"</span>);</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  System.Diagnostics.Debug.Assert(offsets.Length == termFreq);</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  </div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// use delta encoding for offsets</span></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">int</span> lastEndOffset = 0;</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">foreach</span> (<a class="code" href="struct_lucene_1_1_net_1_1_index_1_1_term_vector_offset_info.html" title="The TermVectorOffsetInfo class holds information pertaining to a Term in a Lucene.Net.Index.TermPositionVector's offset information. This offset information is the character offset as set during the Analysis phase (and thus may not be the actual offset in the original content). ">TermVectorOffsetInfo</a> t <span class="keywordflow">in</span> offsets)</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  {</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">int</span> startOffset = t.<a class="code" href="struct_lucene_1_1_net_1_1_index_1_1_term_vector_offset_info.html#aebd2e92bb6a6bc26f503663ad41c36ba" title="The accessor for the starting offset of the term.">StartOffset</a>;</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> endOffset = t.<a class="code" href="struct_lucene_1_1_net_1_1_index_1_1_term_vector_offset_info.html#a3b536e68fd1c75861625a794d2755671" title="The accessor for the ending offset for the term">EndOffset</a>;</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  tvf.WriteVInt(startOffset - lastEndOffset);</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  tvf.WriteVInt(endOffset - startOffset);</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  lastEndOffset = endOffset;</div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</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>  }</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</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>  <span class="comment">// 2nd pass: write field pointers to tvd</span></div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span> (numFields > 1)</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>  <span class="keywordtype">long</span> lastFieldPointer = fieldPointers[0];</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < numFields; i++)</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>  <span class="keywordtype">long</span> fieldPointer = fieldPointers[i];</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  tvd.WriteVLong(fieldPointer - lastFieldPointer);</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  lastFieldPointer = fieldPointer;</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  }</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">else</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  tvd.WriteVInt(0);</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>  </div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">internal</span> <span class="keywordtype">void</span> AddRawDocuments(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a> reader, <span class="keywordtype">int</span>[] tvdLengths, <span class="keywordtype">int</span>[] tvfLengths, <span class="keywordtype">int</span> numDocs)</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  {</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">long</span> tvdPosition = tvd.FilePointer;</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">long</span> tvfPosition = tvf.FilePointer;</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">long</span> tvdStart = tvdPosition;</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">long</span> tvfStart = tvfPosition;</div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < numDocs; i++)</div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  {</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  tvx.WriteLong(tvdPosition);</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  tvdPosition += tvdLengths[i];</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  tvx.WriteLong(tvfPosition);</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  tvfPosition += tvfLengths[i];</div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  tvd.CopyBytes(reader.GetTvdStream(), tvdPosition - tvdStart);</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  tvf.CopyBytes(reader.GetTvfStream(), tvfPosition - tvfStart);</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  System.Diagnostics.Debug.Assert(tvd.FilePointer == tvdPosition);</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  System.Diagnostics.Debug.Assert(tvf.FilePointer == tvfPosition);</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  </div> |
| <div class="line"><a name="l00204"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_writer.html#a94e02071cdf81b959bb945f7f07b61ef"> 204</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Dispose()</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  {</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// Move to a protected method if class becomes unsealed</span></div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// make an effort to close all streams we can but remember and re-throw</span></div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// the first exception encountered in this process</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  System.IO.IOException keep = null;</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (tvx != null)</div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">try</span></div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  {</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  tvx.Close();</div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">catch</span> (System.IO.IOException e)</div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  {</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  keep = e;</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (tvd != null)</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">try</span></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>  tvd.Close();</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">catch</span> (System.IO.IOException e)</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">if</span> (keep == null)</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  keep = e;</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (tvf != null)</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">try</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>  tvf.Close();</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>  <span class="keywordflow">catch</span> (System.IO.IOException e)</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>  <span class="keywordflow">if</span> (keep == null)</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  keep = e;</div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (keep != null)</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="keywordflow">throw</span> <span class="keyword">new</span> System.IO.IOException(keep.StackTrace);</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>  }</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> }</div> |
| </div><!-- fragment --></div><!-- contents --> |
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