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

Go to download
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */
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.index.mapper.ValueFetcher;
import org.elasticsearch.index.query.SearchExecutionContext;
import org.elasticsearch.search.lookup.SourceLookup;

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

public class SourceSimpleFragmentsBuilder extends SimpleFragmentsBuilder {

    private final SourceLookup sourceLookup;
    private final ValueFetcher valueFetcher;

    public SourceSimpleFragmentsBuilder(
        MappedFieldType fieldType,
        SearchExecutionContext context,
        boolean fixBrokenAnalysis,
        SourceLookup sourceLookup,
        String[] preTags,
        String[] postTags,
        BoundaryScanner boundaryScanner
    ) {
        super(fieldType, fixBrokenAnalysis, preTags, postTags, boundaryScanner);
        this.sourceLookup = sourceLookup;
        this.valueFetcher = fieldType.valueFetcher(context, null);
    }

    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