org.elasticsearch.search.fetch.subphase.highlight.SourceSimpleFragmentsBuilder Maven / Gradle / Ivy

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 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
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 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.search.fetch.subphase.highlight;

import org.apache.lucene.document.Field;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.vectorhighlight.BoundaryScanner;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.search.lookup.SourceLookup;

import java.io.IOException;
import java.util.List;

public class SourceSimpleFragmentsBuilder extends SimpleFragmentsBuilder {

    private final SourceLookup sourceLookup;

    public SourceSimpleFragmentsBuilder(MappedFieldType fieldType,
                                        SourceLookup sourceLookup,
                                        String[] preTags,
                                        String[] postTags,
                                        BoundaryScanner boundaryScanner) {
        super(fieldType, preTags, postTags, boundaryScanner);
        this.sourceLookup = sourceLookup;
    }

    public static final Field[] EMPTY_FIELDS = new Field[0];

    @Override
    protected Field[] getFields(IndexReader reader, int docId, String fieldName) throws IOException {
        // we know its low level reader, and matching docId, since that's how we call the highlighter with
        List