com.liferay.portal.kernel.search.BaseIndexSearcher Maven / Gradle / Ivy

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Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.

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/**
 * Copyright (c) 2000-2013 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.kernel.search;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.StringPool;

import java.util.Collections;
import java.util.List;
import java.util.Map;

/**
 * @author Michael C. Han
 */
public abstract class BaseIndexSearcher
	implements IndexSearcher, QuerySuggester {

	public void setQuerySuggester(QuerySuggester querySuggester) {
		_querySuggester = querySuggester;
	}

	@Override
	public String spellCheckKeywords(SearchContext searchContext)
		throws SearchException {

		if (_querySuggester == null) {
			if (_log.isDebugEnabled()) {
				_log.debug("No query suggester configured");
			}

			return StringPool.BLANK;
		}

		return _querySuggester.spellCheckKeywords(searchContext);
	}

	@Override
	public Map> spellCheckKeywords(
			SearchContext searchContext, int max)
		throws SearchException {

		if (_querySuggester == null) {
			if (_log.isDebugEnabled()) {
				_log.debug("No query suggester configured");
			}

			return Collections.emptyMap();
		}

		return _querySuggester.spellCheckKeywords(searchContext, max);
	}

	@Override
	public String[] suggestKeywordQueries(SearchContext searchContext, int max)
		throws SearchException {

		if (_querySuggester == null) {
			if (_log.isDebugEnabled()) {
				_log.debug("No query suggester configured");
			}

			return StringPool.EMPTY_ARRAY;
		}

		return _querySuggester.suggestKeywordQueries(searchContext, max);
	}

	private static Log _log = LogFactoryUtil.getLog(BaseIndexSearcher.class);

	private QuerySuggester _querySuggester;

}