001    /** 
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * You may obtain a copy of the License at 
008     * 
009     * http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS, 
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
014     * See the License for the specific language governing permissions and 
015     * limitations under the License. 
016     * 
017     **/
018    
019    package org.activemq.filter;
020    
021    import org.activemq.selector.SelectorParser;
022    
023    import javax.jms.Destination;
024    import javax.jms.JMSException;
025    
026    /**
027     * A default implementation
028     * 
029     * @version $Revision: 1.1.1.1 $
030     */
031    public class FilterFactoryImpl implements FilterFactory {
032    
033        public Filter createFilter(Destination destination, String selector) throws JMSException {
034            Filter destinationFilter = DestinationFilter.parseFilter(destination);
035            if (selector != null && selector.trim().length() > 0) {
036                Filter selectorFilter = new SelectorParser().parse(selector);
037                if (selectorFilter != null) {
038                    return new AndFilter(destinationFilter, selectorFilter);
039                }
040            }
041            return destinationFilter;
042        }
043    
044    }