MtasSpanPositionQuery.java.html 9.41 KB

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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>MtasSpanPositionQuery.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> &gt; <a href="index.source.html" class="el_package">mtas.search.spans</a> &gt; <span class="el_source">MtasSpanPositionQuery.java</span></div><h1>MtasSpanPositionQuery.java</h1><pre class="source lang-java linenums">package mtas.search.spans;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.Set;
import mtas.codec.util.CodecInfo;
import mtas.search.similarities.MtasSimScorer;
import mtas.search.spans.util.MtasSpanQuery;
import mtas.search.spans.util.MtasSpanWeight;
import mtas.search.spans.util.MtasSpans;

import org.apache.lucene.codecs.FieldsProducer;
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.similarities.Similarity.SimScorer;

/**
 * The Class MtasSpanPositionQuery.
 */
public class MtasSpanPositionQuery extends MtasSpanQuery {

  /** The field. */
  private String field;

  /** The start. */
  private int start;

  /** The end. */
  private int end;

  /**
   * Instantiates a new mtas span position query.
   *
   * @param field the field
   * @param position the position
   */
  public MtasSpanPositionQuery(String field, int position) {
<span class="fc" id="L44">    this(field, position, position);</span>
<span class="fc" id="L45">  }</span>

  /**
   * Instantiates a new mtas span position query.
   *
   * @param field the field
   * @param start the start
   * @param end the end
   */
  public MtasSpanPositionQuery(String field, int start, int end) {
<span class="fc" id="L55">    super(1, 1);</span>
<span class="fc" id="L56">    this.field = field;</span>
<span class="fc" id="L57">    this.start = start;</span>
<span class="fc" id="L58">    this.end = end;</span>
<span class="fc" id="L59">  }</span>

  /*
   * (non-Javadoc)
   *
   * @see org.apache.lucene.search.spans.SpanQuery#getField()
   */
  @Override
  public String getField() {
<span class="fc" id="L68">    return field;</span>
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * org.apache.lucene.search.spans.SpanQuery#createWeight(org.apache.lucene.
   * search.IndexSearcher, boolean)
   */
  @Override
  public MtasSpanWeight createWeight(IndexSearcher searcher,
      boolean needsScores) throws IOException {
<span class="fc" id="L81">    return new SpanAllWeight(searcher, null);</span>
  }

  /**
   * The Class SpanAllWeight.
   */
  protected class SpanAllWeight extends MtasSpanWeight {

    /** The Constant METHOD_GET_DELEGATE. */
    private static final String METHOD_GET_DELEGATE = &quot;getDelegate&quot;;

    /** The Constant METHOD_GET_POSTINGS_READER. */
    private static final String METHOD_GET_POSTINGS_READER = &quot;getPostingsReader&quot;;

    /**
     * Instantiates a new span all weight.
     *
     * @param searcher the searcher
     * @param termContexts the term contexts
     * @throws IOException Signals that an I/O exception has occurred.
     */
    public SpanAllWeight(IndexSearcher searcher,
<span class="fc" id="L103">        Map&lt;Term, TermContext&gt; termContexts) throws IOException {</span>
<span class="fc" id="L104">      super(MtasSpanPositionQuery.this, searcher, termContexts);</span>
<span class="fc" id="L105">    }</span>

    /*
     * (non-Javadoc)
     *
     * @see
     * org.apache.lucene.search.spans.SpanWeight#extractTermContexts(java.util.
     * Map)
     */
    @Override
    public void extractTermContexts(Map&lt;Term, TermContext&gt; contexts) {
      // don't do anything
<span class="nc" id="L117">    }</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 MtasSpans getSpans(LeafReaderContext context,
        Postings requiredPostings) throws IOException {
      try {
        // get leafreader
<span class="fc" id="L132">        LeafReader r = context.reader();</span>
        // get delegate
<span class="fc" id="L134">        Boolean hasMethod = true;</span>
<span class="fc bfc" id="L135" title="All 2 branches covered.">        while (hasMethod) {</span>
<span class="fc" id="L136">          hasMethod = false;</span>
<span class="fc" id="L137">          Method[] methods = r.getClass().getMethods();</span>
<span class="fc bfc" id="L138" title="All 2 branches covered.">          for (Method m : methods) {</span>
<span class="pc bpc" id="L139" title="1 of 2 branches missed.">            if (m.getName().equals(METHOD_GET_DELEGATE)) {</span>
<span class="nc" id="L140">              hasMethod = true;</span>
<span class="nc" id="L141">              r = (LeafReader) m.invoke(r, (Object[]) null);</span>
<span class="nc" id="L142">              break;</span>
            }
          }
<span class="fc" id="L145">        }</span>
        // get fieldsproducer
<span class="fc" id="L147">        Method fpm = r.getClass().getMethod(METHOD_GET_POSTINGS_READER,</span>
            (Class&lt;?&gt;[]) null);
<span class="fc" id="L149">        FieldsProducer fp = (FieldsProducer) fpm.invoke(r, (Object[]) null);</span>
        // get MtasFieldsProducer using terms
<span class="fc" id="L151">        Terms t = fp.terms(field);</span>
<span class="pc bpc" id="L152" title="1 of 2 branches missed.">        if (t == null) {</span>
<span class="nc" id="L153">          return new MtasSpanMatchNoneSpans();</span>
        } else {
<span class="fc" id="L155">          CodecInfo mtasCodecInfo = CodecInfo.getCodecInfoFromTerms(t);</span>
<span class="fc" id="L156">          return new MtasSpanPositionSpans(mtasCodecInfo, field, start, end);</span>
        }
<span class="nc" id="L158">      } catch (InvocationTargetException | IllegalAccessException</span>
          | NoSuchMethodException e) {
<span class="nc" id="L160">        throw new IOException(&quot;Can't get reader&quot;, e);</span>
      }

    }

    /*
     * (non-Javadoc)
     *
     * @see org.apache.lucene.search.Weight#extractTerms(java.util.Set)
     */
    @Override
    public void extractTerms(Set&lt;Term&gt; terms) {
      // don't do anything
<span class="nc" id="L173">    }</span>

    /*
     * (non-Javadoc)
     *
     * @see
     * org.apache.lucene.search.spans.SpanWeight#getSimScorer(org.apache.lucene.
     * index.LeafReaderContext)
     */
    @Override
    public SimScorer getSimScorer(LeafReaderContext context) {
<span class="nc" id="L184">      return new MtasSimScorer();</span>
    }

  }

  /*
   * (non-Javadoc)
   *
   * @see
   * org.apache.lucene.search.spans.SpanTermQuery#toString(java.lang.String)
   */
  @Override
  public String toString(String field) {
<span class="nc" id="L197">    StringBuilder buffer = new StringBuilder();</span>
<span class="nc bnc" id="L198" title="All 2 branches missed.">    buffer.append(this.getClass().getSimpleName() + &quot;([&quot; + start</span>
        + (start != end ? &quot;,&quot; + end : &quot;&quot;) + &quot;])&quot;);
<span class="nc" id="L200">    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="L210" title="All 2 branches covered.">    if (this == obj)</span>
<span class="fc" id="L211">      return true;</span>
<span class="pc bpc" id="L212" title="1 of 2 branches missed.">    if (obj == null)</span>
<span class="nc" id="L213">      return false;</span>
<span class="fc bfc" id="L214" title="All 2 branches covered.">    if (getClass() != obj.getClass())</span>
<span class="fc" id="L215">      return false;</span>
<span class="fc" id="L216">    final MtasSpanPositionQuery that = (MtasSpanPositionQuery) obj;</span>
<span class="pc bpc" id="L217" title="3 of 6 branches missed.">    return field.equals(that.field) &amp;&amp; start == that.start &amp;&amp; end == that.end;</span>
  }

  /*
   * (non-Javadoc)
   *
   * @see org.apache.lucene.search.Query#hashCode()
   */
  @Override
  public int hashCode() {
<span class="fc" id="L227">    int h = this.getClass().getSimpleName().hashCode();</span>
<span class="fc" id="L228">    h = (h * 7) ^ field.hashCode();</span>
<span class="fc" id="L229">    h = (h * 13) ^ start;</span>
<span class="fc" id="L230">    h = (h * 17) ^ end;</span>
<span class="fc" id="L231">    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>