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/*
* Copyright 2003 - 2012 The eFaps Team
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Revision: $Rev: 7740 $
* Last Changed: $Date: 2012-07-03 18:40:05 -0500 (Tue, 03 Jul 2012) $
* Last Changed By: $Author: [email protected] $
*/
package org.efaps.jms;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicSession;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.efaps.admin.common.SystemConfiguration;
import org.efaps.admin.datamodel.Type;
import org.efaps.admin.program.esjp.EFapsClassLoader;
import org.efaps.ci.CIAdminCommon;
import org.efaps.db.MultiPrintQuery;
import org.efaps.db.QueryBuilder;
import org.efaps.db.SelectBuilder;
import org.efaps.util.EFapsException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* TODO comment!
*
* @author The eFaps Team
* @version $Id: JmsHandler.java 7740 2012-07-03 23:40:05Z [email protected] $
*/
public final class JmsHandler
{
/**
* Logger for this class.
*/
private static final Logger LOG = LoggerFactory.getLogger(JmsHandler.class);
/**
* Mapping of JNDI-Name of the ConnectionFactory to QueueConnection.
*/
private static final Map QUEUE2QUECONN = new HashMap();
/**
* Mapping of JNDI-Name of the ConnectionFactory to TopicConnection.
*/
private static final Map TOPIC2QUECONN = new HashMap();
/**
* Mapping of a name to a JmsDefinition.
*/
private static final Map NAME2DEF = new HashMap();
/**
* Create Singelton.
*/
private JmsHandler()
{
}
/**
* Initialize the Jms.
* @throws EFapsException on error
*/
public static void initialize()
throws EFapsException
{
try {
//Kernel-Configuration
final SystemConfiguration config = SystemConfiguration.get(
UUID.fromString("acf2b19b-f7c4-4e4a-a724-fb2d9ed30079"));
if (config != null) {
final int timeout = config.getAttributeValueAsInteger(JmsSession.SESSIONTIMEOUTKEY);
if (timeout > 0) {
JmsSession.setSessionTimeout(timeout);
}
}
// this check is necessary for first install and update
if (CIAdminCommon.JmsAbstract.getType() != null) {
// remove any existing
JmsHandler.stop();
final Context ctx = new InitialContext();
final QueryBuilder queryBldr = new QueryBuilder(CIAdminCommon.JmsAbstract);
final MultiPrintQuery multi = queryBldr.getPrint();
multi.addAttribute(CIAdminCommon.JmsAbstract.Type,
CIAdminCommon.JmsAbstract.Name,
CIAdminCommon.JmsAbstract.ConnectionFactoryJNDI,
CIAdminCommon.JmsAbstract.DestinationJNDI);
final SelectBuilder sel = new SelectBuilder().linkto(CIAdminCommon.JmsAbstract.ESJPLink)
.file().label();
multi.addSelect(sel);
if (multi.executeWithoutAccessCheck()) {
JmsResourceConfig.getResourceConfig().init();
}
while (multi.next()) {
final Type type = multi.getAttribute(CIAdminCommon.JmsAbstract.Type);
final String connectionFactoryJNDI = multi
.getAttribute(CIAdminCommon.JmsAbstract.ConnectionFactoryJNDI);
final String destinationJNDI = multi
.getAttribute(CIAdminCommon.JmsAbstract.DestinationJNDI);
final String name = multi.getAttribute(CIAdminCommon.JmsAbstract.Name);
final String esjp = multi.getSelect(sel);
Session session;
if (type.isKindOf(CIAdminCommon.JmsQueueAbstract.getType())) {
final QueueConnectionFactory queueConnectionFactory = (QueueConnectionFactory) ctx
.lookup(connectionFactoryJNDI);
final QueueConnection queueConnection;
if (JmsHandler.QUEUE2QUECONN.containsKey(connectionFactoryJNDI)) {
queueConnection = JmsHandler.QUEUE2QUECONN.get(connectionFactoryJNDI);
} else {
queueConnection = queueConnectionFactory.createQueueConnection();
}
JmsHandler.QUEUE2QUECONN.put(connectionFactoryJNDI, queueConnection);
session = queueConnection.createQueueSession(false,
Session.AUTO_ACKNOWLEDGE);
queueConnection.start();
} else {
final TopicConnectionFactory topicConnectionFactory = (TopicConnectionFactory) ctx
.lookup(connectionFactoryJNDI);
final TopicConnection topicConn;
if (JmsHandler.TOPIC2QUECONN.containsKey(connectionFactoryJNDI)) {
topicConn = JmsHandler.TOPIC2QUECONN.get(connectionFactoryJNDI);
} else {
topicConn = topicConnectionFactory.createTopicConnection();
}
JmsHandler.TOPIC2QUECONN.put(connectionFactoryJNDI, topicConn);
if (type.isKindOf(CIAdminCommon.JmsTopicDurableConsumer.getType())) {
topicConn.setClientID(org.efaps.db.Context.getThreadContext().getPath() + ":" + name);
}
session = topicConn.createTopicSession(true, Session.AUTO_ACKNOWLEDGE);
topicConn.start();
}
final Destination dest = (Destination) ctx.lookup(destinationJNDI);
if (type.isKindOf(CIAdminCommon.JmsQueueProducer.getType())
|| type.isKindOf(CIAdminCommon.JmsTopicProducer.getType())) {
final MessageProducer producer;
if (type.isKindOf(CIAdminCommon.JmsQueueProducer.getType())) {
producer = session.createProducer(dest);
} else {
producer = ((TopicSession) session).createPublisher((Topic) dest);
}
producer.setDeliveryMode(DeliveryMode.PERSISTENT);
JmsHandler.NAME2DEF.put(name, new JmsDefinition(name, producer, session));
} else {
final MessageConsumer consumer;
if (type.isKindOf(CIAdminCommon.JmsQueueConsumer.getType())) {
consumer = session.createConsumer(dest);
} else if (type.isKindOf(CIAdminCommon.JmsTopicDurableConsumer.getType())) {
consumer = session.createDurableSubscriber((Topic) dest, name);
} else {
consumer = ((TopicSession) session).createSubscriber((Topic) dest);
}
@SuppressWarnings("unchecked")
final Class clazz = (Class) Class.forName(
esjp.trim(), false, EFapsClassLoader.getInstance());
final MessageListener myListener = clazz.newInstance();
consumer.setMessageListener(myListener);
}
}
}
} catch (final NamingException e) {
// this means that a definition cannot be found.
JmsHandler.LOG.error("Naming exception in JMS:", e);
} catch (final JMSException e) {
throw new EFapsException("JMSException", e);
} catch (final ClassNotFoundException e) {
throw new EFapsException("ClassNotFoundException", e);
} catch (final InstantiationException e) {
throw new EFapsException("InstantiationException", e);
} catch (final IllegalAccessException e) {
throw new EFapsException("IllegalAccessException", e);
}
}
/**
* @param _name anme of the definition
* @return JmsDefinition for the given name
*/
public static JmsDefinition getJmsDefinition(final String _name)
{
return JmsHandler.NAME2DEF.get(_name);
}
/**
* @param _jmsDefinition JmsDefinition to add
*/
public static void addJmsDefintion(final JmsDefinition _jmsDefinition)
{
JmsHandler.NAME2DEF.put(_jmsDefinition.getName(), _jmsDefinition);
}
/**
* Stop the jms.
* @throws EFapsException
*/
public static void stop()
throws EFapsException
{
for (final QueueConnection queCon : JmsHandler.QUEUE2QUECONN.values()) {
try {
queCon.close();
} catch (final JMSException e) {
throw new EFapsException("JMSException", e);
}
}
for (final TopicConnection queCon : JmsHandler.TOPIC2QUECONN.values()) {
try {
queCon.close();
} catch (final JMSException e) {
throw new EFapsException("JMSException", e);
}
}
JmsHandler.TOPIC2QUECONN.clear();
JmsHandler.QUEUE2QUECONN.clear();
JmsHandler.NAME2DEF.clear();
}
/**
* A definition of Jms for eFaps.
*/
public static class JmsDefinition
{
/**
* Name of the Definition.
*/
private final String name;
/**
* the related MessageProducer.
*/
private final MessageProducer messageProducer;
/**
* The related Session.
*/
private final Session session;
/**
* @param _name name
* @param _producer MessageProducer
* @param _session Session
*/
public JmsDefinition(final String _name,
final MessageProducer _producer,
final Session _session)
{
this.name = _name;
this.messageProducer = _producer;
this.session = _session;
}
/**
* This is the getter method for instance variable {@link #session}.
*
* @return value of instance variable {@link #session}
* @see #parameters
*/
public Session getSession()
{
return this.session;
}
/**
* This is the getter method for instance variable {@link #messageProducer}.
*
* @return value of instance variable {@link #messageProducer}
* @see #parameters
*/
public MessageProducer getMessageProducer()
{
return this.messageProducer;
}
/**
* This is the getter method for instance variable {@link #name}.
*
* @return value of instance variable {@link #name}
* @see #parameters
*/
public String getName()
{
return this.name;
}
}
}
