/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.usergrid.persistence.index.query;
import java.util.List;
import java.util.Map;
import org.apache.usergrid.persistence.index.utils.ListUtils;
/**
* Utilities to deal with query extraction and generation
*
* @author zznate
*/
public class QueryUtils {
public static final String PARAM_QL = "ql";
public static final String PARAM_Q = "q";
public static final String PARAM_QUERY = "query";
public static String queryStrFrom( Map<String, List<String>> params ) {
if ( params.containsKey( PARAM_QL ) ) {
return ListUtils.first( params.get( PARAM_QL ) );
}
else if ( params.containsKey( PARAM_Q ) ) {
return ListUtils.first( params.get( PARAM_Q ) );
}
else if ( params.containsKey( PARAM_QUERY ) ) {
return ListUtils.first( params.get( PARAM_QUERY ) );
}
return null;
}
}