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 package org.codehaus.activemq.service.impl;
19
20 import org.apache.commons.logging.Log;
21 import org.apache.commons.logging.LogFactory;
22 import org.codehaus.activemq.broker.BrokerClient;
23 import org.codehaus.activemq.filter.FilterFactory;
24 import org.codehaus.activemq.filter.FilterFactoryImpl;
25 import org.codehaus.activemq.message.ActiveMQDestination;
26 import org.codehaus.activemq.message.ActiveMQMessage;
27 import org.codehaus.activemq.message.ConsumerInfo;
28 import org.codehaus.activemq.service.Dispatcher;
29 import org.codehaus.activemq.service.MessageContainer;
30 import org.codehaus.activemq.service.Subscription;
31 import org.codehaus.activemq.service.SubscriptionContainer;
32 import org.codehaus.activemq.store.PersistenceAdapter;
33
34 import javax.jms.DeliveryMode;
35 import javax.jms.JMSException;
36 import java.util.Iterator;
37
38 /***
39 * A default implementation of a Broker of Topic messages for transient consumers
40 *
41 * @version $Revision: 1.3 $
42 */
43 public class TransientTopicMessageContainerManager extends DurableTopicMessageContainerManager {
44 private static final Log log = LogFactory.getLog(TransientTopicMessageContainerManager.class);
45
46 public TransientTopicMessageContainerManager(PersistenceAdapter persistenceAdapter) {
47 this(persistenceAdapter, new SubscriptionContainerImpl(), new FilterFactoryImpl(), new DispatcherImpl());
48 }
49
50 public TransientTopicMessageContainerManager(PersistenceAdapter persistenceAdapter, SubscriptionContainer subscriptionContainer, FilterFactory filterFactory, Dispatcher dispatcher) {
51 super(persistenceAdapter, subscriptionContainer, filterFactory, dispatcher);
52 }
53
54 /***
55 * @param client
56 * @param info
57 * @throws javax.jms.JMSException
58 */
59 public void addMessageConsumer(BrokerClient client, ConsumerInfo info) throws JMSException {
60 if (info.getDestination().isTopic()) {
61 doAddMessageConsumer(client, info);
62 }
63 }
64
65
66 /***
67 * @param client
68 * @param info
69 * @throws javax.jms.JMSException
70 */
71 public void removeMessageConsumer(BrokerClient client, ConsumerInfo info) throws JMSException {
72 Subscription sub = (Subscription) activeSubscriptions.remove(info.getConsumerId());
73 if (sub != null) {
74 sub.setActive(false);
75 dispatcher.removeActiveSubscription(client, sub);
76 subscriptionContainer.removeSubscription(info.getConsumerId());
77 sub.clear();
78 }
79 }
80
81
82 /***
83 * @param client
84 * @param message
85 * @throws javax.jms.JMSException
86 */
87 public void sendMessage(BrokerClient client, ActiveMQMessage message) throws JMSException {
88 ActiveMQDestination dest = (ActiveMQDestination) message.getJMSDestination();
89 if (dest != null && dest.isTopic()) {
90 MessageContainer container = null;
91 if (log.isDebugEnabled()) {
92 log.debug("Dispaching to " + subscriptionContainer + " subscriptions with message: " + message);
93 }
94 for (Iterator i = subscriptionContainer.subscriptionIterator(); i.hasNext();) {
95 Subscription sub = (Subscription) i.next();
96 if (sub.isTarget(message) && (!sub.isDurableTopic() || message.getJMSDeliveryMode() == DeliveryMode.NON_PERSISTENT)) {
97 if (container == null) {
98 container = getContainer(message.getJMSDestination().toString());
99 container.addMessage(message);
100 }
101 sub.addMessage(container, message);
102 }
103 }
104 }
105 }
106
107 /***
108 * Delete a durable subscriber
109 *
110 * @param clientId
111 * @param subscriberName
112 * @throws javax.jms.JMSException if the subscriber doesn't exist or is still active
113 */
114 public void deleteSubscription(String clientId, String subscriberName) throws JMSException {
115 }
116 }