ElasticSearchEngineQueryStringBuilder.java

/**
 * Copyright 2011 Molindo GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package at.molindo.elastic.compass.query;

import org.compass.core.engine.SearchEngineQuery;
import org.compass.core.engine.SearchEngineQueryBuilder;
import org.compass.core.engine.SearchEngineQueryBuilder.SearchEngineQueryStringBuilder;
import org.elasticsearch.index.query.xcontent.QueryStringQueryBuilder.Operator;

import at.molindo.elastic.compass.ElasticSearchEngineFactory;
import at.molindo.elastic.compass.ElasticSearchEngineQuery;
import at.molindo.elastic.compass.NotImplementedException;
import at.molindo.elastic.query.StringQuery;
import at.molindo.utils.data.StringUtils;

public class ElasticSearchEngineQueryStringBuilder implements SearchEngineQueryStringBuilder {

	private ElasticSearchEngineFactory _searchEngineFactory;
	private String _queryString;
	private String _analyzer;
	private String _defaultSearchProperty;
	private Operator _operator;

	public ElasticSearchEngineQueryStringBuilder(ElasticSearchEngineFactory searchEngineFactory, String queryString) {
		_searchEngineFactory = searchEngineFactory;
		_queryString = queryString;
	}

	@Override
	public SearchEngineQueryStringBuilder setAnalyzer(String analyzer) {
		_analyzer = analyzer;
		return this;
	}

	@Override
	public SearchEngineQueryStringBuilder setAnalyzerByAlias(String alias) {
		setAnalyzer(alias);
		return this;
	}

	@Override
	public SearchEngineQueryStringBuilder setDefaultSearchProperty(String defaultSearchProperty) {
		_defaultSearchProperty = defaultSearchProperty;
		return this;
	}

	public SearchEngineQueryBuilder.SearchEngineQueryStringBuilder useAndDefaultOperator() {
		_operator = Operator.AND;
		return this;
	}

	public SearchEngineQueryBuilder.SearchEngineQueryStringBuilder useOrDefaultOperator() {
		_operator = Operator.OR;
		return this;
	}

	@Override
	public SearchEngineQueryStringBuilder forceAnalyzer() {
		// TODO heck, what's that doing? :)
		throw new NotImplementedException();
	}

	@Override
	public SearchEngineQueryStringBuilder setQueryParser(String queryParser) {
		throw new NotImplementedException();
	}

	@Override
	public SearchEngineQueryStringBuilder useSpellCheck() {
		throw new NotImplementedException();
	}

	@Override
	public SearchEngineQuery toQuery() {
		String defaultField = !StringUtils.empty(_defaultSearchProperty) ? _defaultSearchProperty : _searchEngineFactory
				.getElasticSettings().getDefaultSearchPropery();

		Operator operator = _operator != null ? _operator : _searchEngineFactory.getElasticSettings().getDefaultOperator();
		
		StringQuery query = new StringQuery(_queryString).setAnalyzer(_analyzer).setDefaultOperator(operator).setDefaultField(defaultField);
		return new ElasticSearchEngineQuery(_searchEngineFactory, query);
	}
}