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| <div class="title">FieldTermStack.cs</div> </div> |
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| <a href="_field_term_stack_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * this work for additional information regarding copyright ownership.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * limitations under the License.</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> System;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using</span> System.Collections.Generic;</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using</span> System.Text;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using</span> Lucene.Net.Analysis;</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">using</span> Lucene.Net.Documents;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">using</span> Lucene.Net.Search;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using</span> Lucene.Net.Index;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">using</span> Lucene.Net.QueryParsers;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">using</span> Lucene.Net.Store;</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">namespace </span>Lucene.Net.Search.Vectorhighlight</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div> |
| <div class="line"><a name="l00037"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html"> 37</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html" title="FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlig...">FieldTermStack</a></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  {</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">private</span> String fieldName;</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#aafbb5cb3998ab0e591903144429b1172"> 40</a></span>  <span class="keyword">public</span> LinkedList<TermInfo> termList = <span class="keyword">new</span> LinkedList<TermInfo>();</div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#a593a37285583687b8f73f6e96a956a62"> 42</a></span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Main(String[] args)</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  {</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="class_lucene_1_1_net_1_1_analysis_1_1_analyzer.html" title="An Analyzer builds TokenStreams, which analyze text. It thus represents a policy for extracting index...">Analyzer</a> analyzer = <span class="keyword">new</span> <a class="code" href="namespace_spell_checker_1_1_net_1_1_search_1_1_spell.html#a716c3d84abee26949cafe0723ec2ddb2">WhitespaceAnalyzer</a>();</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="class_lucene_1_1_net_1_1_query_parsers_1_1_query_parser.html" title="This class is generated by JavaCC. The most important method is Parse(String).">QueryParser</a> parser = <span class="keyword">new</span> <a class="code" href="_stop_filter_8cs.html#a60340f60ee092cf9082b16fe7b2ed03f">QueryParser</a>(Util.Version.LUCENE_CURRENT, <span class="stringliteral">"f"</span>, analyzer);</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_query.html" title="The abstract base class for queries. Instantiable subclasses are: TermQuery MultiTermQuery BooleanQ...">Query</a> query = parser.<a class="code" href="class_lucene_1_1_net_1_1_query_parsers_1_1_query_parser.html#a4883b4d71854640edf5307f74a72aeb4" title="Parses a query string, returning a Lucene.Net.Search.Query.">Parse</a>(<span class="stringliteral">"a x:b"</span>);</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html">FieldQuery</a> fieldQuery = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html">FieldQuery</a>(query, <span class="keyword">true</span>, <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="class_lucene_1_1_net_1_1_store_1_1_directory.html" title="A Directory is a flat list of files. Files may be written once, when they are created. Once a file is created it may only be opened for read, or deleted. Random access is permitted both when reading and writing.">Directory</a> dir = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_store_1_1_r_a_m_directory.html" title="A memory-resident Directory implementation. Locking implementation is by default the SingleInstanceLo...">RAMDirectory</a>();</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_writer.html" title="An IndexWriter creates and maintains an index. The create argument to the constructor determines whet...">IndexWriter</a> writer = <span class="keyword">new</span> <a class="code" href="namespace_spell_checker_1_1_net_1_1_search_1_1_spell.html#aff095a1e1a1049e3e38e12fe200adcef">IndexWriter</a>(dir, analyzer, <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_writer.html" title="An IndexWriter creates and maintains an index. The create argument to the constructor determines whet...">IndexWriter</a>.MaxFieldLength.LIMITED);</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_document.html" title="Documents are the unit of indexing and search.">Document</a> doc = <span class="keyword">new</span> <a class="code" href="_more_like_this_8cs.html#a2ad6aef8641c7b7a6cf9277f7d54b2cd">Document</a>();</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  doc.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_document.html#acd45aa28de7754d34357017ecb5a1aea" title="Adds a field to a document. Several fields may be added with the same name. In this case...">Add</a>(<span class="keyword">new</span> <a class="code" href="namespace_spell_checker_1_1_net_1_1_search_1_1_spell.html#a844ec5ef528538a3dc0e6cbb34c5e698">Field</a>(<span class="stringliteral">"f"</span>, <span class="stringliteral">"a a a b b c a b b c d e f"</span>, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#aa200dd8593e5a9caf29bb3380df5b4ad" title="Specifies whether and how a field should be stored. ">Store</a>.YES, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#a6da09f47bd62b150214f07404e03be47" title="Specifies whether and how a field should be indexed. ">Index</a>.ANALYZED, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#a3b16afc1c9c84681505db09934edd40e" title="Specifies whether and how a field should have term vectors. ">TermVector</a>.WITH_POSITIONS_OFFSETS));</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  doc.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_document.html#acd45aa28de7754d34357017ecb5a1aea" title="Adds a field to a document. Several fields may be added with the same name. In this case...">Add</a>(<span class="keyword">new</span> <a class="code" href="namespace_spell_checker_1_1_net_1_1_search_1_1_spell.html#a844ec5ef528538a3dc0e6cbb34c5e698">Field</a>(<span class="stringliteral">"f"</span>, <span class="stringliteral">"b a b a f"</span>, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#aa200dd8593e5a9caf29bb3380df5b4ad" title="Specifies whether and how a field should be stored. ">Store</a>.YES, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#a6da09f47bd62b150214f07404e03be47" title="Specifies whether and how a field should be indexed. ">Index</a>.ANALYZED, <a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html" title="A field is a section of a Document. Each field has two parts, a name and a value. Values may be free ...">Field</a>.<a class="code" href="class_lucene_1_1_net_1_1_documents_1_1_field.html#a3b16afc1c9c84681505db09934edd40e" title="Specifies whether and how a field should have term vectors. ">TermVector</a>.WITH_POSITIONS_OFFSETS));</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  writer.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_writer.html#a000da5a984e6cce2aee03cbaf121a53f" title="Adds a document to this index. If the document contains more than SetMaxFieldLength(int) terms for a ...">AddDocument</a>(doc);</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  writer.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_writer.html#abe4383aeee76431a2b30b10e5ffb4b87" title="Commits all changes to an index and closes all associated files. Note that this may be a costly opera...">Close</a>();</div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader = <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a>.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#ad51f1feca975e447b6486d01ed24e1ea" title="Returns an IndexReader reading the index in the given Directory. You should pass readOnly=true, since it gives much better concurrent performance, unless you intend to do write operations (delete documents or change norms) with the reader. ">Open</a>(dir,<span class="keyword">true</span>);</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html" title="FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlig...">FieldTermStack</a> ftl = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html" title="FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlig...">FieldTermStack</a>(reader, 0, <span class="stringliteral">"f"</span>, fieldQuery);</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a1e6264ef01957145748af40d689eaf4d">Close</a>();</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> </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#if LUCENENET_350 //Lucene.Net specific code. See https://issues.apache.org/jira/browse/LUCENENET-350</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span> <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html" title="FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlig...">FieldTermStack</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, <span class="keywordtype">int</span> docId, String fieldName, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html">FieldQuery</a> fieldQuery)</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>  this.fieldName = fieldName;</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  List<string> termSet = fieldQuery.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html#ac273e269c02b1607545258dd6f5f374f">getTermSet</a>(fieldName);</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// just return to make null snippet if un-matched fieldName specified when fieldMatch == true</span></div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (termSet == null) <span class="keywordflow">return</span>;</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">//TermFreqVector tfv = reader.GetTermFreqVector(docId, fieldName);</span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  VectorHighlightMapper tfv = <span class="keyword">new</span> VectorHighlightMapper(termSet); </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a93ef270cec13352696660ca154d4a1be" title="Return a term frequency vector for the specified document and field. The returned vector contains ter...">GetTermFreqVector</a>(docId, fieldName, tfv);</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>  <span class="keywordflow">if</span> (tfv.Size==0) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">string</span>[] terms = tfv.<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="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">foreach</span> (String term <span class="keywordflow">in</span> terms)</div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (!StringUtils.AnyTermMatch(termSet, term)) <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">int</span> index = tfv.IndexOf(term);</div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</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>[] tvois = tfv.GetOffsets(index);</div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (tvois == null) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">int</span>[] poss = tfv.GetTermPositions(index);</div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (poss == null) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < tvois.Length; i++)</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  termList.AddLast(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a>(term, tvois[i].StartOffset, tvois[i].EndOffset, poss[i]));</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>  <span class="comment">// sort by position</span></div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">//Collections.sort(termList);</span></div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_sort.html" title="Encapsulates sort criteria for returned hits.">Sort</a>(termList);</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> <span class="preprocessor">#else //Original Port</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#a28123023e97871f15896bd98d9dfdf5d"> 102</a></span> <span class="preprocessor"></span> <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html" title="FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlig...">FieldTermStack</a>(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html" title="IndexReader is an abstract class, providing an interface for accessing an index. Search of an index i...">IndexReader</a> reader, <span class="keywordtype">int</span> docId, String fieldName, <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html">FieldQuery</a> fieldQuery)</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  {</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  this.fieldName = fieldName;</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  TermFreqVector tfv = reader.<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_index_reader.html#a93ef270cec13352696660ca154d4a1be" title="Return a term frequency vector for the specified document and field. The returned vector contains ter...">GetTermFreqVector</a>(docId, fieldName);</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (tfv == null) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</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> tpv = null;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">try</span></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>  tpv = (<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>)tfv;</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>  <span class="keywordflow">catch</span> (InvalidCastException e)</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  {</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  List<String> termSet = fieldQuery.<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_query.html#ac273e269c02b1607545258dd6f5f374f">getTermSet</a>(fieldName);</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// just return to make null snippet if un-matched fieldName specified when fieldMatch == true</span></div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (termSet == null) <span class="keywordflow">return</span>;</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">foreach</span> (String term <span class="keywordflow">in</span> tpv.GetTerms())</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  {</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (!termSet.Contains(term)) <span class="keywordflow">continue</span>;</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> index = tpv.IndexOf(term);</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</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>[] tvois = tpv.GetOffsets(index);</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (tvois == null) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">int</span>[] poss = tpv.GetTermPositions(index);</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (poss == null) <span class="keywordflow">return</span>; <span class="comment">// just return to make null snippets</span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < tvois.Length; i++)</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  termList.AddLast(<span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html">TermInfo</a>(term, tvois[i].GetStartOffset(), tvois[i].GetEndOffset(), poss[i]));</div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</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">// sort by position</span></div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">//Collections.sort(termList);</span></div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_sort.html" title="Encapsulates sort criteria for returned hits.">Sort</a>(termList);</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> <span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">void</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_sort.html" title="Encapsulates sort criteria for returned hits.">Sort</a>(LinkedList<TermInfo> linkList)</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>  <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a>[] arr = <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a>[linkList.Count];</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  linkList.CopyTo(arr, 0);</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  Array.Sort(arr, <span class="keyword">new</span> Comparison<TermInfo>(PosComparer));</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  linkList.Clear();</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">foreach</span> (<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a> t <span class="keywordflow">in</span> arr) linkList.AddLast(t);</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  }</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="keywordtype">int</span> PosComparer(<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a> t1,<a class="code" href="class_lucene_1_1_net_1_1_index_1_1_term_info.html" title="A TermInfo is the record of information stored for a term.">TermInfo</a> t2)</div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  {</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> t1.Position - t2.Position;</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> </div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">public</span> <span class="keywordtype">string</span> FieldName</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#aaeb17f78f5dd869fefb9a332271c43ab"> 160</a></span>  {</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> fieldName; }</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="l00168"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#abef30958d058375a27a4379ace514771"> 168</a></span>  <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html">TermInfo</a> Pop()</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="keywordflow">if</span> (termList.Count == 0) <span class="keywordflow">return</span> null;</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  LinkedListNode<TermInfo> top = termList.First;</div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  termList.RemoveFirst();</div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">return</span> top.Value;</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>  </div> |
| <div class="line"><a name="l00181"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#a21f0292c4b05c1709cac7a050d970221"> 181</a></span>  <span class="keyword">public</span> <span class="keywordtype">void</span> Push(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html">TermInfo</a> termInfo)</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  {</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// termList.push( termInfo ); // avoid Java 1.6 feature</span></div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  termList.AddFirst(termInfo);</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> </div> |
| <div class="line"><a name="l00191"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack.html#ac7da60a7282471b3e5cc546904a539e0"> 191</a></span>  <span class="keyword">public</span> <span class="keywordtype">bool</span> IsEmpty()</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> termList == null || termList.Count == 0;</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div> |
| <div class="line"><a name="l00196"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html"> 196</a></span>  <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html">TermInfo</a> : IComparable<TermInfo></div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  String text;</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">int</span> startOffset;</div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">int</span> endOffset;</div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">int</span> position;</div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div> |
| <div class="line"><a name="l00204"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a701acb513e6c65f1ff583d9deb7086ff"> 204</a></span>  <span class="keyword">public</span> <a class="code" href="_field_phrase_list_8cs.html#a2d1cbe4942c5a9c67961e361dbfb4a51">TermInfo</a>(String text, <span class="keywordtype">int</span> startOffset, <span class="keywordtype">int</span> endOffset, <span class="keywordtype">int</span> position)</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>  this.text = text;</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  this.startOffset = startOffset;</div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  this.endOffset = endOffset;</div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  this.position = position;</div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">public</span> <span class="keywordtype">string</span> Text</div> |
| <div class="line"><a name="l00213"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a4cc66e73a954e5e6b6eff816f792ba50"> 213</a></span>  {</div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> text; }</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> </div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">public</span> <span class="keywordtype">int</span> StartOffset</div> |
| <div class="line"><a name="l00218"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a7add3a1fa9b8ca29a4e7b0cd002375ca"> 218</a></span>  {</div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> startOffset; }</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">public</span> <span class="keywordtype">int</span> EndOffset</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#ade0cbdd4bab165e87e438beae10a45dd"> 223</a></span>  {</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> endOffset; }</div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</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="keyword">public</span> <span class="keywordtype">int</span> Position</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a93355fa36d2a39a6f65d9fb0f3021f1a"> 228</a></span>  {</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">get</span> { <span class="keywordflow">return</span> position; }</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div> |
| <div class="line"><a name="l00232"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a6c454d2c6c8be5b5f93e6967f545e2e7"> 232</a></span>  <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">string</span> ToString()</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  {</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  StringBuilder sb = <span class="keyword">new</span> StringBuilder();</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  sb.Append(text).Append(<span class="charliteral">'('</span>).Append(startOffset).Append(<span class="charliteral">','</span>).Append(endOffset).Append(<span class="charliteral">','</span>).Append(position).Append(<span class="charliteral">')'</span>);</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> sb.ToString();</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div> |
| <div class="line"><a name="l00239"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html#a429ae13c6de4af2395d89e8feae147a9"> 239</a></span>  <span class="keyword">public</span> <span class="keywordtype">int</span> CompareTo(<a class="code" href="class_lucene_1_1_net_1_1_search_1_1_vectorhighlight_1_1_field_term_stack_1_1_term_info.html">TermInfo</a> o)</div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  {</div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> (this.position - o.position);</div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</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> |
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