01 /*
02 * Licensed to the Apache Software Foundation (ASF) under one
03 * or more contributor license agreements. See the NOTICE file
04 * distributed with this work for additional information
05 * regarding copyright ownership. The ASF licenses this file
06 * to you under the Apache License, Version 2.0 (the
07 * "License"); you may not use this file except in compliance
08 * with the License. You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 *
20 */
21 package org.apache.qpid.server.filter;
22
23 import org.apache.log4j.Logger;
24 import org.apache.qpid.AMQException;
25 import org.apache.qpid.server.filter.jms.selector.SelectorParser;
26 import org.apache.qpid.server.queue.Filterable;
27
28
29 public class JMSSelectorFilter<E extends Exception> implements MessageFilter<E>
30 {
31 private final static Logger _logger = org.apache.log4j.Logger.getLogger(JMSSelectorFilter.class);
32
33 private String _selector;
34 private BooleanExpression<E> _matcher;
35
36 public JMSSelectorFilter(String selector) throws AMQException
37 {
38 _selector = selector;
39 _matcher = new SelectorParser().parse(selector);
40 }
41
42 public boolean matches(Filterable<E> message) throws E
43 {
44 boolean match = _matcher.matches(message);
45 if(_logger.isDebugEnabled())
46 {
47 _logger.debug(message + " match(" + match + ") selector(" + System.identityHashCode(_selector) + "):" + _selector);
48 }
49 return match;
50 }
51
52 public String getSelector()
53 {
54 return _selector;
55 }
56 }
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