001: /* ====================================================================
002: * The Apache Software License, Version 1.1
003: *
004: * Copyright (c) 1997-2003 The Apache Software Foundation. All rights
005: * reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * 1. Redistributions of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The end-user documentation included with the redistribution,
020: * if any, must include the following acknowledgment:
021: * "This product includes software developed by the
022: * Apache Software Foundation (http://www.apache.org/)."
023: * Alternately, this acknowledgment may appear in the software
024: * itself, if and wherever such third-party acknowledgments
025: * normally appear.
026: *
027: * 4. The names "Jakarta", "Avalon", and "Apache Software Foundation"
028: * must not be used to endorse or promote products derived from this
029: * software without prior written permission. For written
030: * permission, please contact apache@apache.org.
031: *
032: * 5. Products derived from this software may not be called "Apache",
033: * nor may "Apache" appear in their name, without prior written
034: * permission of the Apache Software Foundation.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
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049: *
050: * This software consists of voluntary contributions made by many
051: * individuals on behalf of the Apache Software Foundation. For more
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053: * <http://www.apache.org/>.
054: */
055: package org.apache.log.output.jms;
056:
057: import javax.jms.Message;
058: import javax.jms.Session;
059: import javax.jms.Topic;
060: import javax.jms.TopicConnection;
061: import javax.jms.TopicConnectionFactory;
062: import javax.jms.TopicPublisher;
063: import javax.jms.TopicSession;
064: import org.apache.log.ErrorHandler;
065:
066: /**
067: * A target that writes to a JMS Topic.
068: *
069: * @author <a href="mailto:peter@apache.org">Peter Donald</a>
070: */
071: public class JMSTopicTarget extends AbstractJMSTarget {
072: ///ConnectionFactory to use
073: private TopicConnectionFactory m_factory;
074:
075: ///Topic we will send messages to
076: private Topic m_topic;
077:
078: ///Session associated with topic
079: private TopicSession m_session;
080:
081: ///Publisher for topic
082: private TopicPublisher m_publisher;
083:
084: ///JMS topic Connection
085: private TopicConnection m_connection;
086:
087: public JMSTopicTarget(final MessageBuilder builder,
088: final TopicConnectionFactory factory, final Topic topic) {
089: super (builder);
090: m_factory = factory;
091: m_topic = topic;
092: open();
093: }
094:
095: public JMSTopicTarget(final MessageBuilder builder,
096: final TopicConnectionFactory factory, final Topic topic,
097: final ErrorHandler handler) {
098: super (builder, handler);
099: m_factory = factory;
100: m_topic = topic;
101: open();
102: }
103:
104: protected void send(final Message message) {
105: try {
106: m_publisher.publish(message);
107: } catch (final Exception e) {
108: getErrorHandler()
109: .error("Error publishing message", e, null);
110: }
111: }
112:
113: protected Session getSession() {
114: return m_session;
115: }
116:
117: protected synchronized void openConnection() {
118: try {
119: m_connection = m_factory.createTopicConnection();
120: m_connection.start();
121:
122: m_session = m_connection.createTopicSession(false,
123: Session.AUTO_ACKNOWLEDGE);
124:
125: m_publisher = m_session.createPublisher(m_topic);
126: //if( m_persistent ) publisher.setDeliveryMode( DeliveryMode.PERSISTENT );
127: //else publisher.setDeliveryMode( DeliveryMode.NON_PERSISTENT );
128: //publisher.setPriority( m_priority );
129: //publisher.setTimeToLive( m_timeToLive );
130: } catch (final Exception e) {
131: getErrorHandler().error("Error starting connection", e,
132: null);
133: }
134: }
135:
136: protected synchronized void closeConnection() {
137: try {
138: if (null != m_publisher)
139: m_publisher.close();
140: if (null != m_session)
141: m_session.close();
142: if (null != m_connection)
143: m_connection.close();
144: } catch (Exception e) {
145: getErrorHandler()
146: .error("Error closing connection", e, null);
147: }
148:
149: m_publisher = null;
150: m_session = null;
151: m_connection = null;
152: }
153: }
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