MtasExtendedSpanTermQuery.java.html
13.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>MtasExtendedSpanTermQuery.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">MTAS</a> > <a href="index.source.html" class="el_package">mtas.search.spans.util</a> > <span class="el_source">MtasExtendedSpanTermQuery.java</span></div><h1>MtasExtendedSpanTermQuery.java</h1><pre class="source lang-java linenums">package mtas.search.spans.util;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import mtas.analysis.token.MtasToken;
import mtas.codec.util.CodecUtil;
import org.apache.lucene.index.FieldInfo;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexReaderContext;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.PostingsEnum;
import org.apache.lucene.index.Term;
import org.apache.lucene.index.TermContext;
import org.apache.lucene.index.TermState;
import org.apache.lucene.index.Terms;
import org.apache.lucene.index.TermsEnum;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.spans.FilterSpans;
import org.apache.lucene.search.spans.SpanTermQuery;
import org.apache.lucene.search.spans.SpanWeight;
import org.apache.lucene.search.spans.Spans;
/**
* The Class MtasExtendedSpanTermQuery.
*/
public class MtasExtendedSpanTermQuery extends SpanTermQuery {
/** The prefix. */
private String prefix;
/** The value. */
private String value;
/** The single position. */
private boolean singlePosition;
/** The local term. */
private Term localTerm;
/**
* Instantiates a new mtas extended span term query.
*
* @param term the term
*/
public MtasExtendedSpanTermQuery(Term term) {
<span class="nc" id="L51"> this(term, true);</span>
<span class="nc" id="L52"> }</span>
/**
* Instantiates a new mtas extended span term query.
*
* @param term the term
* @param singlePosition the single position
*/
private MtasExtendedSpanTermQuery(Term term, boolean singlePosition) {
<span class="nc" id="L61"> this(new SpanTermQuery(term), singlePosition);</span>
<span class="nc" id="L62"> }</span>
/**
* Instantiates a new mtas extended span term query.
*
* @param query the query
* @param singlePosition the single position
*/
public MtasExtendedSpanTermQuery(SpanTermQuery query,
boolean singlePosition) {
<span class="fc" id="L72"> super(query.getTerm());</span>
<span class="fc" id="L73"> localTerm = query.getTerm(); </span>
<span class="fc" id="L74"> this.singlePosition = singlePosition;</span>
<span class="fc" id="L75"> int i = localTerm.text().indexOf(MtasToken.DELIMITER);</span>
<span class="pc bpc" id="L76" title="1 of 2 branches missed."> if (i >= 0) {</span>
<span class="fc" id="L77"> prefix = localTerm.text().substring(0, i);</span>
<span class="fc" id="L78"> value = localTerm.text().substring((i + MtasToken.DELIMITER.length()));</span>
<span class="fc bfc" id="L79" title="All 2 branches covered."> value = (value.length() > 0) ? value : null;</span>
} else {
<span class="nc" id="L81"> prefix = localTerm.text();</span>
<span class="nc" id="L82"> value = null;</span>
}
<span class="fc" id="L84"> }</span>
/*
* (non-Javadoc)
*
* @see
* org.apache.lucene.search.spans.SpanTermQuery#createWeight(org.apache.lucene
* .search.IndexSearcher, boolean)
*/
@Override
public SpanWeight createWeight(IndexSearcher searcher, boolean needsScores)
throws IOException {
final TermContext context;
<span class="fc" id="L97"> final IndexReaderContext topContext = searcher.getTopReaderContext();</span>
<span class="pc bpc" id="L98" title="1 of 2 branches missed."> if (termContext == null) {</span>
<span class="fc" id="L99"> context = TermContext.build(topContext, localTerm);</span>
} else {
<span class="nc" id="L101"> context = termContext;</span>
}
<span class="pc bpc" id="L103" title="1 of 2 branches missed."> return new SpanTermWeight(context, searcher,</span>
<span class="pc" id="L104"> needsScores ? Collections.singletonMap(localTerm, context) : null);</span>
}
/**
* The Class SpanTermWeight.
*/
<span class="pc bpc" id="L111" title="1 of 2 branches missed."> public class SpanTermWeight extends SpanWeight {</span>
/** The term context. */
final TermContext termContext;
/**
* Instantiates a new span term weight.
*
* @param termContext the term context
* @param searcher the searcher
* @param terms the terms
* @throws IOException Signals that an I/O exception has occurred.
*/
public SpanTermWeight(TermContext termContext, IndexSearcher searcher,
<span class="fc" id="L125"> Map<Term, TermContext> terms) throws IOException {</span>
<span class="fc" id="L126"> super(MtasExtendedSpanTermQuery.this, searcher, terms);</span>
<span class="fc" id="L127"> this.termContext = termContext;</span>
<span class="pc bpc" id="L128" title="2 of 4 branches missed."> assert termContext != null : "TermContext must not be null";</span>
<span class="fc" id="L129"> }</span>
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.Weight#extractTerms(java.util.Set)
*/
@Override
public void extractTerms(Set<Term> terms) {
<span class="nc" id="L138"> terms.add(localTerm);</span>
<span class="nc" id="L139"> }</span>
/*
* (non-Javadoc)
*
* @see
* org.apache.lucene.search.spans.SpanWeight#extractTermContexts(java.util
* .Map)
*/
@Override
public void extractTermContexts(Map<Term, TermContext> contexts) {
<span class="fc" id="L150"> contexts.put(localTerm, termContext);</span>
<span class="fc" id="L151"> }</span>
/*
* (non-Javadoc)
*
* @see
* org.apache.lucene.search.spans.SpanWeight#getSpans(org.apache.lucene.
* index.LeafReaderContext,
* org.apache.lucene.search.spans.SpanWeight.Postings)
*/
@Override
public Spans getSpans(final LeafReaderContext context,
Postings requiredPostings) throws IOException {
<span class="fc" id="L164"> final TermState state = termContext.get(context.ord);</span>
<span class="fc bfc" id="L165" title="All 2 branches covered."> if (state == null) { // term is not present in that reader</span>
<span class="pc bpc" id="L166" title="2 of 4 branches missed."> assert context.reader().docFreq(</span>
<span class="fc" id="L167"> localTerm) == 0 : "no termstate found but term exists in reader term="</span>
<span class="nc" id="L168"> + localTerm;</span>
<span class="fc" id="L169"> return null;</span>
}
<span class="fc" id="L172"> final Terms terms = context.reader().terms(localTerm.field());</span>
<span class="pc bpc" id="L173" title="1 of 2 branches missed."> if (terms == null) {</span>
<span class="nc" id="L174"> return null;</span>
}
<span class="pc bpc" id="L176" title="1 of 2 branches missed."> if (!terms.hasPositions())</span>
<span class="nc" id="L177"> throw new IllegalStateException("field \"" + localTerm.field()</span>
+ "\" was indexed without position data; cannot run SpanTermQuery (term="
<span class="nc" id="L179"> + localTerm.text() + ")");</span>
<span class="fc" id="L181"> final TermsEnum termsEnum = terms.iterator();</span>
<span class="fc" id="L182"> termsEnum.seekExact(localTerm.bytes(), state);</span>
final PostingsEnum postings;
Spans matchSpans;
try {
// get leafreader
<span class="fc" id="L189"> LeafReader r = context.reader();</span>
// get delegate
<span class="fc" id="L192"> Boolean hasMethod = true;</span>
<span class="fc bfc" id="L193" title="All 2 branches covered."> while (hasMethod) {</span>
<span class="fc" id="L194"> hasMethod = false;</span>
<span class="fc" id="L195"> Method[] methods = r.getClass().getMethods();</span>
<span class="fc bfc" id="L196" title="All 2 branches covered."> for (Method m : methods) {</span>
<span class="fc bfc" id="L197" title="All 2 branches covered."> if (m.getName().equals("getDelegate")) {</span>
<span class="fc" id="L198"> hasMethod = true;</span>
<span class="fc" id="L199"> r = (LeafReader) m.invoke(r, (Object[]) null);</span>
<span class="fc" id="L200"> break;</span>
}
}
<span class="fc" id="L203"> }</span>
<span class="fc" id="L205"> FieldInfo fieldInfo = r.getFieldInfos().fieldInfo(field);</span>
<span class="fc bfc" id="L207" title="All 2 branches covered."> if (CodecUtil.isSinglePositionPrefix(fieldInfo, prefix)) {</span>
<span class="fc" id="L208"> postings = termsEnum.postings(null,</span>
<span class="fc" id="L209"> requiredPostings.getRequiredPostings());</span>
<span class="fc" id="L210"> matchSpans = new MtasExtendedTermSpans(postings, localTerm, true);</span>
} else {
<span class="fc" id="L212"> postings = termsEnum.postings(null, requiredPostings</span>
<span class="fc" id="L213"> .atLeast(Postings.PAYLOADS).getRequiredPostings());</span>
<span class="fc" id="L214"> matchSpans = new MtasExtendedTermSpans(postings, localTerm, false);</span>
}
<span class="fc bfc" id="L216" title="All 2 branches covered."> if(singlePosition) {</span>
<span class="pc bpc" id="L217" title="1 of 2 branches missed."> return new FilterSpans(matchSpans) {</span>
@Override
protected AcceptStatus accept(Spans candidate)
throws IOException {
<span class="pc bpc" id="L221" title="2 of 4 branches missed."> assert candidate.startPosition() != candidate.endPosition();</span>
<span class="fc" id="L222"> if((candidate.endPosition()</span>
<span class="pc bpc" id="L223" title="1 of 2 branches missed."> - candidate.startPosition()) == 1) {</span>
<span class="fc" id="L224"> return AcceptStatus.YES;</span>
} else {
<span class="nc" id="L226"> return AcceptStatus.NO;</span>
}
}
};
} else {
<span class="fc" id="L231"> return matchSpans;</span>
}
<span class="nc" id="L233"> } catch (Exception e) {</span>
// e.printStackTrace();
<span class="nc" id="L235"> throw new IOException("Can't get reader: " + e.getMessage(), e);</span>
}
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.lucene.search.spans.SpanTermQuery#toString(java.lang.String)
*/
@Override
public String toString(String field) {
<span class="nc" id="L249"> StringBuilder buffer = new StringBuilder();</span>
<span class="nc" id="L250"> buffer.append(this.getClass().getSimpleName() + "([");</span>
<span class="nc bnc" id="L251" title="All 2 branches missed."> if (value == null) {</span>
<span class="nc" id="L252"> buffer.append(field + ":" + prefix);</span>
} else {
<span class="nc" id="L254"> buffer.append(field + ":" + prefix + "=" + value);</span>
}
<span class="nc" id="L256"> buffer.append("])");</span>
<span class="nc" id="L257"> return buffer.toString();</span>
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.spans.SpanTermQuery#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
<span class="pc bpc" id="L267" title="1 of 2 branches missed."> if (this == obj)</span>
<span class="nc" id="L268"> return true;</span>
<span class="pc bpc" id="L269" title="1 of 2 branches missed."> if (obj == null)</span>
<span class="nc" id="L270"> return false;</span>
<span class="pc bpc" id="L271" title="1 of 2 branches missed."> if (getClass() != obj.getClass())</span>
<span class="nc" id="L272"> return false;</span>
<span class="fc" id="L273"> MtasExtendedSpanTermQuery other = (MtasExtendedSpanTermQuery) obj;</span>
<span class="pc bpc" id="L274" title="1 of 4 branches missed."> return other.localTerm.equals(localTerm) && (other.singlePosition == singlePosition);</span>
}
/* (non-Javadoc)
* @see org.apache.lucene.search.spans.SpanTermQuery#hashCode()
*/
@Override
public int hashCode() {
<span class="fc" id="L282"> int h = this.getClass().getSimpleName().hashCode();</span>
<span class="fc" id="L283"> h = (h * 5) ^ localTerm.hashCode();</span>
<span class="fc bfc" id="L284" title="All 2 branches covered."> if(singlePosition) {</span>
<span class="fc" id="L285"> h+=1;</span>
}
<span class="fc" id="L287"> return h;</span>
}
}
</pre><div class="footer"><span class="right">Created with <a href="http://www.jacoco.org/jacoco">JaCoCo</a> 0.7.9.201702052155</span></div></body></html>