com.liferay.portal.search.elasticsearch.internal.SearchHitDocumentTranslatorImpl.java Source code

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Here is the source code for com.liferay.portal.search.elasticsearch.internal.SearchHitDocumentTranslatorImpl.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.search.elasticsearch.internal;

import com.liferay.portal.kernel.search.Document;
import com.liferay.portal.kernel.search.DocumentImpl;
import com.liferay.portal.kernel.search.Field;
import com.liferay.portal.kernel.search.geolocation.GeoLocationPoint;
import com.liferay.portal.kernel.util.ArrayUtil;

import java.util.Collection;
import java.util.Map;

import org.apache.commons.lang.StringUtils;

import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHitField;

import org.osgi.service.component.annotations.Component;

/**
 * @author Andr de Oliveira
 */
@Component(immediate = true, service = SearchHitDocumentTranslator.class)
public class SearchHitDocumentTranslatorImpl implements SearchHitDocumentTranslator {

    @Override
    public Document translate(SearchHit searchHit) {
        Document document = new DocumentImpl();

        Map<String, SearchHitField> searchHitFields = searchHit.getFields();

        for (String searchHitFieldName : searchHitFields.keySet()) {
            addField(document, searchHitFieldName, searchHitFields);
        }

        return document;
    }

    protected void addField(Document document, String fieldName, Map<String, SearchHitField> searchHitFields) {

        String baseFieldName = removeSuffixes(fieldName, ".lat", ".lon");

        if (document.hasField(baseFieldName)) {
            return;
        }

        SearchHitField searchHitField = searchHitFields.get(baseFieldName);

        Field field = translateGeoPoint(searchHitField, searchHitFields.get(baseFieldName + ".lat"),
                searchHitFields.get(baseFieldName + ".lon"));

        if (field == null) {
            field = translate(searchHitField);
        }

        document.add(field);
    }

    protected String removeSuffixes(String fieldName, String... suffixes) {
        for (String suffix : suffixes) {
            fieldName = StringUtils.removeEnd(fieldName, suffix);
        }

        return fieldName;
    }

    protected Field translate(SearchHitField searchHitField) {
        String name = searchHitField.getName();

        Collection<Object> values = searchHitField.getValues();

        Field field = new Field(name, ArrayUtil.toStringArray(values.toArray(new Object[values.size()])));

        return field;
    }

    protected Field translateGeoPoint(SearchHitField searchHitField, SearchHitField latSearchHitField,
            SearchHitField lonSearchHitField) {

        if ((latSearchHitField == null) || (lonSearchHitField == null)) {
            return null;
        }

        Field field = new Field(searchHitField.getName());

        field.setGeoLocationPoint(
                new GeoLocationPoint((Double) latSearchHitField.getValue(), (Double) lonSearchHitField.getValue()));

        return field;
    }

}