import org.elasticsearch.search.internal.InternalSearchHitField; //导入依赖的package包/类
public void initialize(Engine.Searcher docSearcher, ParsedDocument parsedDocument) {
    this.docSearcher = docSearcher;

    IndexReader indexReader = docSearcher.reader();
    LeafReaderContext atomicReaderContext = indexReader.leaves().get(0);
    LeafSearchLookup leafLookup = lookup().getLeafSearchLookup(atomicReaderContext);
    leafLookup.setDocument(0);
    leafLookup.source().setSource(parsedDocument.source());

    Map<String, SearchHitField> fields = new HashMap<>();
    for (IndexableField field : parsedDocument.rootDoc().getFields()) {
        fields.put(field.name(), new InternalSearchHitField(field.name(), Collections.emptyList()));
    }
    hitContext().reset(
            new InternalSearchHit(0, "unknown", new Text(parsedDocument.type()), fields),
            atomicReaderContext, 0, docSearcher.searcher()
    );
}
 

import org.elasticsearch.search.internal.InternalSearchHitField; //导入依赖的package包/类
private void putSearchHitField(Map<String, SearchHitField> fields, String name, Object... values) {
	fields.put(name, new InternalSearchHitField(name, Arrays.asList(values)));
}
 

import org.elasticsearch.search.internal.InternalSearchHitField; //导入依赖的package包/类
@Override
public void collect(int doc) throws IOException {
    fieldsVisitor.reset();
    currentReader.document(doc, fieldsVisitor);

    Map<String, SearchHitField> searchFields = null;
    if (fieldsVisitor.fields() != null) {
        searchFields = new HashMap<String, SearchHitField>(
                fieldsVisitor.fields().size());
        for (Map.Entry<String, List<Object>> entry : fieldsVisitor
                .fields().entrySet()) {
            searchFields.put(entry.getKey(), new InternalSearchHitField(
                    entry.getKey(), entry.getValue()));
        }
    }

    DocumentMapper documentMapper = context.mapperService().documentMapper(
            fieldsVisitor.uid().type());
    Text typeText;
    if (documentMapper == null) {
        typeText = new StringAndBytesText(fieldsVisitor.uid().type());
    } else {
        typeText = documentMapper.typeText();
    }

    InternalSearchHit searchHit = new InternalSearchHit(doc,
            fieldsVisitor.uid().id(), typeText,
            sourceRequested ? fieldsVisitor.source() : null, searchFields);

    // it looks like it is safe to reuse the HitContext,
    // the cache is only used by the highlighter which we do not use.
    FetchSubPhase.HitContext hitContext = new FetchSubPhase.HitContext();
    for (FetchSubPhase fetchSubPhase : fetchSubPhases) {
        if (fetchSubPhase.hitExecutionNeeded(context)) {
            hitContext.reset(searchHit, arc, doc,
                    context.searcher().getIndexReader(), doc,
                    fieldsVisitor);
            fetchSubPhase.hitExecute(context, hitContext);
        }
    }
    searchHit.shardTarget(context.shardTarget());
    collectHit(searchHit);
    numExported++;
}
 

import org.elasticsearch.search.internal.InternalSearchHitField; //导入依赖的package包/类
@Override
public void collect(int doc) throws IOException {
    fieldsVisitor.reset();
    currentReader.document(doc, fieldsVisitor);

    Map<String, SearchHitField> searchFields = null;
    if (fieldsVisitor.fields() != null) {
        searchFields = new HashMap<String, SearchHitField>(fieldsVisitor.fields().size());
        for (Map.Entry<String, List<Object>> entry : fieldsVisitor.fields().entrySet()) {
            searchFields.put(entry.getKey(), new InternalSearchHitField(entry.getKey(), entry.getValue()));
        }
    }

    DocumentMapper documentMapper = context.mapperService()
            .documentMapper(fieldsVisitor.uid().type());
    Text typeText;
    if (documentMapper == null) {
        typeText = new StringAndBytesText(fieldsVisitor.uid().type());
    } else {
        typeText = documentMapper.typeText();
    }

    InternalSearchHit searchHit = new InternalSearchHit(doc,
            fieldsVisitor.uid().id(), typeText,
            sourceRequested ? fieldsVisitor.source() : null,
            searchFields);

    for (FetchSubPhase fetchSubPhase : fetchSubPhases) {
        FetchSubPhase.HitContext hitContext = new FetchSubPhase.HitContext();
        if (fetchSubPhase.hitExecutionNeeded(context)) {
            hitContext.reset(searchHit, arc, doc, context.searcher().getIndexReader(), doc, fieldsVisitor);
            fetchSubPhase.hitExecute(context, hitContext);
        }
    }

    searchHit.shardTarget(context.shardTarget());
    exportFields.hit(searchHit);
    BytesStreamOutput os = new BytesStreamOutput();
    XContentBuilder builder = new XContentBuilder(XContentFactory.xContent(XContentType.JSON), os);
    exportFields.toXContent(builder, ToXContent.EMPTY_PARAMS);
    builder.flush();
    BytesReference bytes = os.bytes();
    out.write(bytes.array(), bytes.arrayOffset(), bytes.length());
    out.write('\n');
    out.flush();
    numExported++;
}