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apache / lucenenet-site / b7932cab2a602cd78b928b7dd2376969de9ab8e2 / . / docs / 3.0.3 / _term_vectors_terms_writer_per_field_8cs_source.html
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<div class="title">TermVectorsTermsWriterPerField.cs</div> </div>
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<a href="_term_vectors_terms_writer_per_field_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>&#160;<span class="comment">/* </span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> * (the &quot;License&quot;); you may not use this file except in compliance with</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<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>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<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>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<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>&#160;<span class="comment"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<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>&#160;<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>&#160;<span class="comment"> * limitations under the License.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">using</span> Lucene.Net.Analysis.Tokenattributes;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">using</span> Lucene.Net.Documents;</div>
<div class="line"><a name="l00021"></a><span class="lineno"><a class="code" href="_term_vectors_terms_writer_per_field_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5"> 21</a></span>&#160;<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_terms_writer_per_field_8cs.html#ac6445f47719a63eecd9434c88ae8b7df"> 22</a></span>&#160;<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="l00023"></a><span class="lineno"> 23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="keyword">namespace </span>Lucene.Net.Index</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;{</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; </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_terms_writer_per_field.html"> 27</a></span>&#160; sealed <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_field.html">TermVectorsTermsWriterPerField</a>:<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_consumer_per_field.html" title="Implement this class to plug into the TermsHash processor, which inverts and stores Tokens into a has...">TermsHashConsumerPerField</a></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_thread.html">TermVectorsTermsWriterPerThread</a> perThread;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_per_field.html">TermsHashPerField</a> termsHashPerField;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer.html">TermVectorsTermsWriter</a> termsWriter;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="keyword">internal</span> <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="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.DocState docState;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">internal</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_field_invert_state.html" title="This class tracks the number and position / offset parameters of terms being added to the index...">FieldInvertState</a> fieldState;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">bool</span> doVectors;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">bool</span> doVectorPositions;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">bool</span> doVectorOffsets;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">int</span> maxNumPostings;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">internal</span> <a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_offset_attribute.html" title="The start and end character offset of a Token. ">IOffsetAttribute</a> offsetAttribute = null;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_field.html#a05f5b3a074094b3cae396c4878320386"> 44</a></span>&#160; <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_field.html">TermVectorsTermsWriterPerField</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_terms_hash_per_field.html">TermsHashPerField</a> termsHashPerField, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_thread.html">TermVectorsTermsWriterPerThread</a> perThread, <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="l00045"></a><span class="lineno"> 45</span>&#160; {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; this.termsHashPerField = termsHashPerField;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; this.perThread = perThread;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; this.termsWriter = perThread.termsWriter;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; this.fieldInfo = fieldInfo;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; docState = termsHashPerField.docState;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; fieldState = termsHashPerField.fieldState;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetStreamCount()</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keywordflow">return</span> 2;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> Start(<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html" title="Synonymous with Field.">IFieldable</a>[] fields, <span class="keywordtype">int</span> count)</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; doVectors = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; doVectorPositions = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; doVectorOffsets = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; count; i++)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html" title="Synonymous with Field.">IFieldable</a> field = fields[i];</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">if</span> (field.<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html#a1d06afbb41d96935271f515185486894" title="True if the value of the field is to be indexed, so that it may be searched on. ">IsIndexed</a> &amp;&amp; field.<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html#a4e82d504152effe292572e6242c0ce16" title="True if the term or terms used to index this field are stored as a term vector, available from Lucene...">IsTermVectorStored</a>)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; doVectors = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; doVectorPositions |= field.<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html#a3fe2ff23898c82339c83088fed82518a" title="True if terms are stored as term vector together with their token positions.">IsStorePositionWithTermVector</a>;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; doVectorOffsets |= field.<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html#a6dd87770d7fb1fe7f71a1b86af0f4cf5" title="True if terms are stored as term vector together with their offsets (start and end positon in source ...">IsStoreOffsetWithTermVector</a>;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordflow">if</span> (doVectors)</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">if</span> (perThread.doc == null)</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; perThread.doc = termsWriter.GetPerDoc();</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; perThread.doc.docID = docState.docID;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; System.Diagnostics.Debug.Assert(perThread.doc.numVectorFields == 0);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; System.Diagnostics.Debug.Assert(0 == perThread.doc.perDocTvf.Length);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; System.Diagnostics.Debug.Assert(0 == perThread.doc.perDocTvf.FilePointer);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; }</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; System.Diagnostics.Debug.Assert(perThread.doc.docID == docState.docID);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">if</span> (termsHashPerField.numPostings != 0)</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="comment">// Only necessary if previous doc hit a</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">// non-aborting exception while writing vectors in</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="comment">// this field:</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; termsHashPerField.Reset();</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; perThread.termsHashPerThread.Reset(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="comment">// TODO: only if needed for performance</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="comment">//perThread.postingsCount = 0;</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordflow">return</span> doVectors;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer_per_field.html#a452a78b28c09787d079d801fae7995f0"> 104</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Abort()</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Finish()</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; {</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; System.Diagnostics.Debug.Assert(docState.TestPoint(<span class="stringliteral">&quot;TermVectorsTermsWriterPerField.finish start&quot;</span>));</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordtype">int</span> numPostings = termsHashPerField.numPostings;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; System.Diagnostics.Debug.Assert(numPostings &gt;= 0);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordflow">if</span> (!doVectors || numPostings == 0)</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; return ;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">if</span> (numPostings &gt; maxNumPostings)</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; maxNumPostings = numPostings;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <a class="code" href="_byte_slice_reader_8cs.html#ade6c9dd9318ff9ca227f26d89b0ad2e5">IndexOutput</a> tvf = perThread.doc.perDocTvf;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="comment">// This is called once, after inverting all occurences</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="comment">// of a given field in the doc. At this point we flush</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="comment">// our hash into the DocWriter.</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; System.Diagnostics.Debug.Assert(fieldInfo.storeTermVector);</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; System.Diagnostics.Debug.Assert(perThread.VectorFieldsInOrder(fieldInfo));</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; perThread.doc.AddField(termsHashPerField.fieldInfo.number);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_raw_posting_list.html" title="This is the base class for an in-memory posting list, keyed by a Token. TermsHash maintains a hash ta...">RawPostingList</a>[] postings = termsHashPerField.SortPostings();</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; tvf.WriteVInt(numPostings);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; byte bits = (byte) (0x0);</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">if</span> (doVectorPositions)</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; bits |= <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.STORE_POSITIONS_WITH_TERMVECTOR;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">if</span> (doVectorOffsets)</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; bits |= <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_reader.html">TermVectorsReader</a>.STORE_OFFSET_WITH_TERMVECTOR;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; tvf.WriteByte(bits);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordtype">int</span> encoderUpto = 0;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordtype">int</span> lastTermBytesCount = 0;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_slice_reader.html">ByteSliceReader</a> reader = perThread.vectorSliceReader;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordtype">char</span>[][] charBuffers = perThread.termsHashPerThread.charPool.buffers;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; numPostings; j++)</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer.html">TermVectorsTermsWriter</a>.PostingList posting = (<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_vectors_terms_writer.html">TermVectorsTermsWriter</a>.PostingList) postings[j];</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordtype">int</span> freq = posting.freq;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordtype">char</span>[] text2 = charBuffers[posting.textStart &gt;&gt; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.CHAR_BLOCK_SHIFT];</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">int</span> start2 = posting.textStart &amp; <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_documents_writer.html" title="This class accepts multiple added documents and directly writes a single segment file. It does this more efficiently than creating a single segment per document (with DocumentWriter) and doing standard merges on those segments.">DocumentsWriter</a>.CHAR_BLOCK_MASK;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="comment">// We swap between two encoders to save copying</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="comment">// last Term&#39;s byte array</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF8Result utf8Result = perThread.utf8Results[encoderUpto];</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="comment">// TODO: we could do this incrementally</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <a class="code" href="_compression_tools_8cs.html#ac6445f47719a63eecd9434c88ae8b7df">UnicodeUtil</a>.UTF16toUTF8(text2, start2, utf8Result);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keywordtype">int</span> termBytesCount = utf8Result.length;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// TODO: UTF16toUTF8 could tell us this prefix</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">// Compute common prefix between last term and</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="comment">// this term</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordtype">int</span> prefix = 0;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordflow">if</span> (j &gt; 0)</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; byte[] lastTermBytes = perThread.utf8Results[1 - encoderUpto].result;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; byte[] termBytes = perThread.utf8Results[encoderUpto].result;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">while</span> (prefix &lt; lastTermBytesCount &amp;&amp; prefix &lt; termBytesCount)</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; {</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordflow">if</span> (lastTermBytes[prefix] != termBytes[prefix])</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; prefix++;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; }</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; encoderUpto = 1 - encoderUpto;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; lastTermBytesCount = termBytesCount;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordtype">int</span> suffix = termBytesCount - prefix;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; tvf.WriteVInt(prefix);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; tvf.WriteVInt(suffix);</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; tvf.WriteBytes(utf8Result.result, prefix, suffix);</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; tvf.WriteVInt(freq);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">if</span> (doVectorPositions)</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; {</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; termsHashPerField.InitReader(reader, posting, 0);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_slice_reader.html#a8232f1ce25fb60437a006d7e8ad46bc3">WriteTo</a>(tvf);</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keywordflow">if</span> (doVectorOffsets)</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; termsHashPerField.InitReader(reader, posting, 1);</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_byte_slice_reader.html#a8232f1ce25fb60437a006d7e8ad46bc3">WriteTo</a>(tvf);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; }</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; }</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; termsHashPerField.Reset();</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="comment">// NOTE: we clear, per-field, at the thread level,</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="comment">// because term vectors fully write themselves on each</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="comment">// field; this saves RAM (eg if large doc has two large</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="comment">// fields w/ term vectors on) because we recycle/reuse</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="comment">// all RAM after each field:</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; perThread.termsHashPerThread.Reset(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; }</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keyword">internal</span> <span class="keywordtype">void</span> ShrinkHash()</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; {</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; termsHashPerField.ShrinkHash(maxNumPostings);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; maxNumPostings = 0;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; }</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; </div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> Start(<a class="code" href="interface_lucene_1_1_net_1_1_documents_1_1_i_fieldable.html" title="Synonymous with Field.">IFieldable</a> f)</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keywordflow">if</span> (doVectorOffsets)</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; {</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; offsetAttribute = fieldState.attributeSource.AddAttribute&lt;<a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_offset_attribute.html" title="The start and end character offset of a Token. ">IOffsetAttribute</a>&gt;();</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; }</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; {</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; offsetAttribute = null;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; }</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; }</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; </div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> NewTerm(RawPostingList p0)</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; System.Diagnostics.Debug.Assert(docState.TestPoint(<span class="stringliteral">&quot;TermVectorsTermsWriterPerField.newTerm start&quot;</span>));</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; TermVectorsTermsWriter.PostingList p = (TermVectorsTermsWriter.PostingList) p0;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; p.freq = 1;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordflow">if</span> (doVectorOffsets)</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordtype">int</span> startOffset = fieldState.offset + offsetAttribute.<a class="code" href="interface_lucene_1_1_net_1_1_analysis_1_1_tokenattributes_1_1_i_offset_attribute.html#a2762094728bc2fd1d79680186e7db942" title="Returns this Token&#39;s starting offset, the position of the first character corresponding to this token...">StartOffset</a>; ;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; <span class="keywordtype">int</span> endOffset = fieldState.offset + offsetAttribute.EndOffset;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; </div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; termsHashPerField.WriteVInt(1, startOffset);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; termsHashPerField.WriteVInt(1, endOffset - startOffset);</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; p.lastOffset = endOffset;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; }</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; </div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keywordflow">if</span> (doVectorPositions)</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; {</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; termsHashPerField.WriteVInt(0, fieldState.position);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; p.lastPosition = fieldState.position;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; }</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; }</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> AddTerm(RawPostingList p0)</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; {</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; </div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; System.Diagnostics.Debug.Assert(docState.TestPoint(<span class="stringliteral">&quot;TermVectorsTermsWriterPerField.addTerm start&quot;</span>));</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; TermVectorsTermsWriter.PostingList p = (TermVectorsTermsWriter.PostingList) p0;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; p.freq++;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="keywordflow">if</span> (doVectorOffsets)</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="keywordtype">int</span> startOffset = fieldState.offset + offsetAttribute.StartOffset; ;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordtype">int</span> endOffset = fieldState.offset + offsetAttribute.EndOffset;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; termsHashPerField.WriteVInt(1, startOffset - p.lastOffset);</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; termsHashPerField.WriteVInt(1, endOffset - startOffset);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; p.lastOffset = endOffset;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; }</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; </div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">if</span> (doVectorPositions)</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; {</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; termsHashPerField.WriteVInt(0, fieldState.position - p.lastPosition);</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; p.lastPosition = fieldState.position;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; }</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; </div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keyword">internal</span> <span class="keyword">override</span> <span class="keywordtype">void</span> SkippingLongTerm()</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; {</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; }</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; }</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160;}</div>
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