示例#1
0
      @Override
      public int advance(int target) throws IOException {
        if (remaining == 0) {
          return currentDocId = NO_MORE_DOCS;
        }

        currentDocId = parentsIterator.advance(target);
        if (currentDocId == DocIdSetIterator.NO_MORE_DOCS) {
          return currentDocId;
        }

        bytesValues.setDocument(currentDocId);
        long index = parentIds.find(bytesValues.nextValue(), bytesValues.currentValueHash());
        if (index != -1) {
          currentScore = scores.get(index);
          remaining--;
          return currentDocId;
        } else {
          return nextDoc();
        }
      }
示例#2
0
 @Override
 public void collect(int doc) throws IOException {
   if (values != null) {
     long ord = ordinals.getOrd(doc);
     long parentIdx = parentIdsIndex.get(ord);
     if (parentIdx < 0) {
       final BytesRef bytes = values.getValueByOrd(ord);
       final int hash = values.currentValueHash();
       parentIdx = parentIds.add(bytes, hash);
       if (parentIdx < 0) {
         parentIdx = -parentIdx - 1;
         doScore(parentIdx);
       } else {
         scores = bigArrays.grow(scores, parentIdx + 1);
         scores.set(parentIdx, scorer.score());
       }
       parentIdsIndex.set(ord, parentIdx);
     } else {
       doScore(parentIdx);
     }
   }
 }
示例#3
0
  @Override
  public Weight createWeight(IndexSearcher searcher) throws IOException {
    SearchContext searchContext = SearchContext.current();
    assert rewrittenChildQuery != null;
    assert rewriteIndexReader == searcher.getIndexReader()
        : "not equal, rewriteIndexReader="
            + rewriteIndexReader
            + " searcher.getIndexReader()="
            + searcher.getIndexReader();
    final Query childQuery = rewrittenChildQuery;

    IndexSearcher indexSearcher = new IndexSearcher(searcher.getIndexReader());
    indexSearcher.setSimilarity(searcher.getSimilarity());

    final BytesRefHash parentIds;
    final FloatArray scores;
    final IntArray occurrences;
    switch (scoreType) {
      case MAX:
        MaxCollector maxCollector =
            new MaxCollector(parentChildIndexFieldData, parentType, searchContext);
        try {
          indexSearcher.search(childQuery, maxCollector);
          parentIds = maxCollector.parentIds;
          scores = maxCollector.scores;
          occurrences = null;
        } finally {
          Releasables.release(maxCollector.parentIdsIndex);
        }
        break;
      case SUM:
        SumCollector sumCollector =
            new SumCollector(parentChildIndexFieldData, parentType, searchContext);
        try {
          indexSearcher.search(childQuery, sumCollector);
          parentIds = sumCollector.parentIds;
          scores = sumCollector.scores;
          occurrences = null;
        } finally {
          Releasables.release(sumCollector.parentIdsIndex);
        }
        break;
      case AVG:
        AvgCollector avgCollector =
            new AvgCollector(parentChildIndexFieldData, parentType, searchContext);
        try {
          indexSearcher.search(childQuery, avgCollector);
          parentIds = avgCollector.parentIds;
          scores = avgCollector.scores;
          occurrences = avgCollector.occurrences;
        } finally {
          Releasables.release(avgCollector.parentIdsIndex);
        }
        break;
      default:
        throw new RuntimeException("Are we missing a score type here? -- " + scoreType);
    }

    int size = (int) parentIds.size();
    if (size == 0) {
      Releasables.release(parentIds, scores, occurrences);
      return Queries.newMatchNoDocsQuery().createWeight(searcher);
    }

    final Filter parentFilter;
    if (size == 1) {
      BytesRef id = parentIds.get(0, new BytesRef());
      if (nonNestedDocsFilter != null) {
        List<Filter> filters =
            Arrays.asList(
                new TermFilter(new Term(UidFieldMapper.NAME, Uid.createUidAsBytes(parentType, id))),
                nonNestedDocsFilter);
        parentFilter = new AndFilter(filters);
      } else {
        parentFilter =
            new TermFilter(new Term(UidFieldMapper.NAME, Uid.createUidAsBytes(parentType, id)));
      }
    } else if (size <= shortCircuitParentDocSet) {
      parentFilter = new ParentIdsFilter(parentType, nonNestedDocsFilter, parentIds);
    } else {
      parentFilter = new ApplyAcceptedDocsFilter(this.parentFilter);
    }
    ParentWeight parentWeight =
        new ParentWeight(
            rewrittenChildQuery.createWeight(searcher),
            parentFilter,
            size,
            parentIds,
            scores,
            occurrences);
    searchContext.addReleasable(parentWeight);
    return parentWeight;
  }