MtasMaximumExpandSpanQuery.java.html
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<?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>MtasMaximumExpandSpanQuery.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">MtasMaximumExpandSpanQuery.java</span></div><h1>MtasMaximumExpandSpanQuery.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.Map;
import java.util.Set;
import org.apache.lucene.codecs.FieldsProducer;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.Term;
import org.apache.lucene.index.TermContext;
import org.apache.lucene.index.Terms;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.spans.SpanWeight;
import org.apache.lucene.search.spans.Spans;
import mtas.codec.util.CodecInfo;
import mtas.search.spans.MtasSpanMatchNoneSpans;
/**
* The Class MtasMaximumExpandSpanQuery.
*/
public class MtasMaximumExpandSpanQuery extends MtasSpanQuery {
/** The query. */
MtasSpanQuery query;
/** The minimum left. */
int minimumLeft;
/** The maximum left. */
int maximumLeft;
/** The minimum right. */
int minimumRight;
/** The maximum right. */
int maximumRight;
/**
* Instantiates a new mtas maximum expand span query.
*
* @param query the query
* @param minimumLeft the minimum left
* @param maximumLeft the maximum left
* @param minimumRight the minimum right
* @param maximumRight the maximum right
*/
public MtasMaximumExpandSpanQuery(MtasSpanQuery query, int minimumLeft,
int maximumLeft, int minimumRight, int maximumRight) {
<span class="fc" id="L53"> super(null, null);</span>
<span class="fc" id="L54"> this.query = query;</span>
<span class="pc bpc" id="L55" title="4 of 8 branches missed."> if (minimumLeft > maximumLeft || minimumRight > maximumRight</span>
|| minimumLeft < 0 || minimumRight < 0) {
<span class="nc" id="L57"> throw new IllegalArgumentException();</span>
}
<span class="fc" id="L59"> this.minimumLeft = minimumLeft;</span>
<span class="fc" id="L60"> this.maximumLeft = maximumLeft;</span>
<span class="fc" id="L61"> this.minimumRight = minimumRight;</span>
<span class="fc" id="L62"> this.maximumRight = maximumRight;</span>
<span class="fc" id="L63"> Integer minimum = query.getMinimumWidth();</span>
<span class="fc" id="L64"> Integer maximum = query.getMaximumWidth();</span>
<span class="fc bfc" id="L65" title="All 2 branches covered."> if (minimum != null) {</span>
<span class="fc" id="L66"> minimum += minimumLeft + minimumRight;</span>
}
<span class="fc bfc" id="L68" title="All 2 branches covered."> if (maximum != null) {</span>
<span class="fc" id="L69"> maximum += maximumLeft + maximumRight;</span>
}
<span class="fc" id="L71"> setWidth(minimum, maximum);</span>
<span class="fc" id="L72"> }</span>
/*
* (non-Javadoc)
*
* @see
* mtas.search.spans.util.MtasSpanQuery#createWeight(org.apache.lucene.search.
* IndexSearcher, boolean)
*/
@Override
public SpanWeight createWeight(IndexSearcher searcher, boolean needsScores, float boost)
throws IOException {
<span class="fc" id="L84"> SpanWeight subWeight = query.createWeight(searcher, needsScores, boost);</span>
<span class="pc bpc" id="L85" title="1 of 4 branches missed."> if (maximumLeft == 0 && maximumRight == 0) {</span>
<span class="nc" id="L86"> return subWeight;</span>
} else {
<span class="fc" id="L88"> return new MtasMaximumExpandWeight(subWeight, searcher, needsScores, boost);</span>
}
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.spans.SpanQuery#getField()
*/
@Override
public String getField() {
<span class="fc" id="L99"> return query.getField();</span>
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.Query#toString(java.lang.String)
*/
@Override
public String toString(String field) {
<span class="nc" id="L109"> StringBuilder buffer = new StringBuilder();</span>
<span class="nc" id="L110"> buffer.append(this.getClass().getSimpleName() + "([");</span>
<span class="nc" id="L111"> buffer.append(query.toString(field) + "][" + minimumLeft + "," + maximumLeft</span>
+ "][" + minimumRight + "," + maximumRight + "])");
<span class="nc" id="L113"> return buffer.toString();</span>
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.Query#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
<span class="fc bfc" id="L123" title="All 2 branches covered."> if (this == obj)</span>
<span class="fc" id="L124"> return true;</span>
<span class="pc bpc" id="L125" title="1 of 2 branches missed."> if (obj == null)</span>
<span class="nc" id="L126"> return false;</span>
<span class="fc bfc" id="L127" title="All 2 branches covered."> if (getClass() != obj.getClass())</span>
<span class="fc" id="L128"> return false;</span>
<span class="fc" id="L129"> final MtasMaximumExpandSpanQuery that = (MtasMaximumExpandSpanQuery) obj;</span>
boolean isEqual;
<span class="fc" id="L131"> isEqual = query.equals(that.query);</span>
<span class="pc bpc" id="L132" title="1 of 2 branches missed."> isEqual &= minimumLeft == that.minimumLeft;</span>
<span class="pc bpc" id="L133" title="1 of 2 branches missed."> isEqual &= maximumLeft == that.maximumLeft;</span>
<span class="pc bpc" id="L134" title="1 of 2 branches missed."> isEqual &= minimumRight == that.minimumRight;</span>
<span class="pc bpc" id="L135" title="1 of 2 branches missed."> isEqual &= maximumRight == that.maximumRight;</span>
<span class="fc" id="L136"> return isEqual;</span>
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.Query#hashCode()
*/
@Override
public int hashCode() {
<span class="nc" id="L146"> int h = Integer.rotateLeft(classHash(), 1);</span>
<span class="nc" id="L147"> h ^= query.hashCode();</span>
<span class="nc" id="L148"> h = Integer.rotateLeft(h, minimumLeft) + minimumLeft;</span>
<span class="nc" id="L149"> h ^= 2;</span>
<span class="nc" id="L150"> h = Integer.rotateLeft(h, maximumLeft) + maximumLeft;</span>
<span class="nc" id="L151"> h ^= 3;</span>
<span class="nc" id="L152"> h = Integer.rotateLeft(h, minimumRight) + minimumRight;</span>
<span class="nc" id="L153"> h ^= 5;</span>
<span class="nc" id="L154"> h = Integer.rotateLeft(h, maximumRight) + maximumRight;</span>
<span class="nc" id="L155"> return h;</span>
}
/*
* (non-Javadoc)
*
* @see mtas.search.spans.util.MtasSpanQuery#rewrite(org.apache.lucene.index.
* IndexReader)
*/
@Override
public MtasSpanQuery rewrite(IndexReader reader) throws IOException {
<span class="fc" id="L166"> MtasSpanQuery newQuery = query.rewrite(reader);</span>
<span class="fc bfc" id="L167" title="All 4 branches covered."> if (maximumLeft == 0 && maximumRight == 0) {</span>
<span class="fc" id="L168"> return newQuery;</span>
<span class="pc bpc" id="L169" title="1 of 2 branches missed."> } else if (!query.equals(newQuery)) {</span>
<span class="nc" id="L170"> return new MtasMaximumExpandSpanQuery(newQuery, minimumLeft, maximumLeft,</span>
minimumRight, maximumRight);
} else {
<span class="fc" id="L173"> return super.rewrite(reader);</span>
}
}
/*
* (non-Javadoc)
*
* @see mtas.search.spans.util.MtasSpanQuery#disableTwoPhaseIterator()
*/
@Override
public void disableTwoPhaseIterator() {
<span class="fc" id="L184"> super.disableTwoPhaseIterator();</span>
<span class="fc" id="L185"> query.disableTwoPhaseIterator();</span>
<span class="fc" id="L186"> }</span>
/**
* The Class MtasMaximumExpandWeight.
*/
private class MtasMaximumExpandWeight extends MtasSpanWeight {
/** The Constant METHOD_GET_DELEGATE. */
private static final String METHOD_GET_DELEGATE = "getDelegate";
/** The Constant METHOD_GET_POSTINGS_READER. */
private static final String METHOD_GET_POSTINGS_READER = "getPostingsReader";
/** The sub weight. */
SpanWeight subWeight;
/**
* Instantiates a new mtas maximum expand weight.
*
* @param subWeight the sub weight
* @param searcher the searcher
* @param needsScores the needs scores
* @throws IOException Signals that an I/O exception has occurred.
*/
public MtasMaximumExpandWeight(SpanWeight subWeight, IndexSearcher searcher,
<span class="fc" id="L211"> boolean needsScores, float boost) throws IOException {</span>
<span class="pc bpc" id="L212" title="1 of 2 branches missed."> super(MtasMaximumExpandSpanQuery.this, searcher,</span>
<span class="pc" id="L213"> needsScores ? getTermContexts(subWeight) : null, boost);</span>
<span class="fc" id="L214"> this.subWeight = subWeight;</span>
<span class="fc" id="L215"> }</span>
/*
* (non-Javadoc)
*
* @see
* org.apache.lucene.search.spans.SpanWeight#extractTermContexts(java.util.
* Map)
*/
@Override
public void extractTermContexts(Map<Term, TermContext> contexts) {
<span class="nc" id="L226"> subWeight.extractTermContexts(contexts);</span>
<span class="nc" id="L227"> }</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(LeafReaderContext ctx, Postings requiredPostings)
throws IOException {
<span class="fc" id="L240"> Spans spans = subWeight.getSpans(ctx, requiredPostings);</span>
<span class="pc bpc" id="L241" title="2 of 6 branches missed."> if ((maximumLeft == 0 && maximumRight == 0) || spans == null) {</span>
<span class="nc" id="L242"> return spans;</span>
} else {
try {
// get leafreader
<span class="fc" id="L246"> LeafReader r = ctx.reader();</span>
// get delegate
<span class="fc" id="L248"> Boolean hasMethod = true;</span>
<span class="fc bfc" id="L249" title="All 2 branches covered."> while (hasMethod) {</span>
<span class="fc" id="L250"> hasMethod = false;</span>
<span class="fc" id="L251"> Method[] methods = r.getClass().getMethods();</span>
<span class="fc bfc" id="L252" title="All 2 branches covered."> for (Method m : methods) {</span>
<span class="pc bpc" id="L253" title="1 of 2 branches missed."> if (m.getName().equals(METHOD_GET_DELEGATE)) {</span>
<span class="nc" id="L254"> hasMethod = true;</span>
<span class="nc" id="L255"> r = (LeafReader) m.invoke(r, (Object[]) null);</span>
<span class="nc" id="L256"> break;</span>
}
}
<span class="fc" id="L259"> } // get fieldsproducer</span>
<span class="fc" id="L260"> Method fpm = r.getClass().getMethod(METHOD_GET_POSTINGS_READER,</span>
(Class<?>[]) null);
<span class="fc" id="L262"> FieldsProducer fp = (FieldsProducer) fpm.invoke(r, (Object[]) null);</span>
// get MtasFieldsProducer using terms
<span class="fc" id="L264"> Terms t = fp.terms(field);</span>
<span class="pc bpc" id="L265" title="1 of 2 branches missed."> if (t == null) {</span>
<span class="nc" id="L266"> return new MtasSpanMatchNoneSpans(MtasMaximumExpandSpanQuery.this);</span>
} else {
<span class="fc" id="L268"> CodecInfo mtasCodecInfo = CodecInfo.getCodecInfoFromTerms(t);</span>
<span class="fc" id="L269"> return new MtasMaximumExpandSpans(MtasMaximumExpandSpanQuery.this,</span>
<span class="fc" id="L270"> mtasCodecInfo, query.getField(), spans);</span>
}
<span class="nc" id="L272"> } catch (Exception e) {</span>
<span class="nc" id="L273"> throw new IOException("Can't get reader", e);</span>
}
}
}
/*
* (non-Javadoc)
*
* @see org.apache.lucene.search.Weight#extractTerms(java.util.Set)
*/
@Override
public void extractTerms(Set<Term> terms) {
<span class="nc" id="L286"> subWeight.extractTerms(terms);</span>
<span class="nc" id="L287"> }</span>
}
}
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