1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18
19 package org.codehaus.activemq.filter;
20
21 import javax.jms.Destination;
22 import javax.jms.JMSException;
23 import javax.jms.Message;
24
25
26 /***
27 * Represents a filter which only operates on Destinations
28 *
29 * @version $Revision: 1.2 $
30 */
31 public abstract class DestinationFilter implements Filter {
32 public static final String ANY_DESCENDENT = ">";
33 public static final String ANY_CHILD = "*";
34
35 public boolean matches(Message message) throws JMSException {
36 return matches(message.getJMSDestination());
37 }
38
39 public abstract boolean matches(Destination destination);
40
41 public static DestinationFilter parseFilter(Destination destination) {
42 String[] paths = DestinationPath.getDestinationPaths(destination);
43 int idx = paths.length - 1;
44 if (idx >= 0) {
45 String lastPath = paths[idx];
46 if (lastPath.equals(ANY_DESCENDENT)) {
47 return new PrefixDestinationFilter(paths);
48 }
49 else if (lastPath.equals(ANY_CHILD)) {
50 return new WildcardDestinationFilter(paths);
51 }
52 }
53
54
55 return new SimpleDestinationFilter(destination);
56 }
57 }