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
039: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
040: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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.
048: * ====================================================================
049: *
050: * This software consists of voluntary contributions made by many
051: * individuals on behalf of the Apache Software Foundation. For more
052: * information on the Apache Software Foundation, please see
053: * <http://www.apache.org/>.
054: */
055: package org.apache.log.output.jms;
056:
057: import javax.jms.Message;
058: import javax.jms.Queue;
059: import javax.jms.QueueConnection;
060: import javax.jms.QueueConnectionFactory;
061: import javax.jms.QueueSender;
062: import javax.jms.QueueSession;
063: import javax.jms.Session;
064: import org.apache.log.ErrorHandler;
065:
066: /**
067: * A target that writes to a JMS Queue.
068: *
069: * @author <a href="mailto:mirceatoma@home.com">Mircea Toma</a>
070: */
071: public class JMSQueueTarget extends AbstractJMSTarget {
072: ///ConnectionFactory to use
073: private QueueConnectionFactory m_factory;
074:
075: ///Queue we will send messages to
076: private Queue m_queue;
077:
078: ///Session associated with queue
079: private QueueSession m_session;
080:
081: ///Sender for queue
082: private QueueSender m_sender;
083:
084: ///JMS queue Connection
085: private QueueConnection m_connection;
086:
087: public JMSQueueTarget(final MessageBuilder builder,
088: final QueueConnectionFactory factory, final Queue queue) {
089: super (builder);
090: m_factory = factory;
091: m_queue = queue;
092: open();
093: }
094:
095: public JMSQueueTarget(final MessageBuilder builder,
096: final QueueConnectionFactory factory, final Queue queue,
097: final ErrorHandler handler) {
098: super (builder, handler);
099: m_factory = factory;
100: m_queue = queue;
101: open();
102: }
103:
104: protected void send(final Message message) {
105: try {
106: m_sender.send(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.createQueueConnection();
120: m_connection.start();
121:
122: m_session = m_connection.createQueueSession(false,
123: Session.AUTO_ACKNOWLEDGE);
124:
125: m_sender = m_session.createSender(m_queue);
126: } catch (final Exception e) {
127: getErrorHandler().error("Error starting connection", e,
128: null);
129: }
130: }
131:
132: protected synchronized void closeConnection() {
133: try {
134: if (null != m_sender)
135: m_sender.close();
136: if (null != m_session)
137: m_session.close();
138: if (null != m_connection)
139: m_connection.close();
140: } catch (Exception e) {
141: getErrorHandler()
142: .error("Error closing connection", e, null);
143: }
144:
145: m_sender = null;
146: m_session = null;
147: m_connection = null;
148: }
149: }
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