| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.servicemix.jms.multiplexing; |
| |
| import org.apache.servicemix.jms.AbstractJmsProcessor; |
| import org.apache.servicemix.jms.JmsEndpoint; |
| import org.apache.servicemix.soap.Context; |
| |
| import javax.jbi.messaging.ExchangeStatus; |
| import javax.jbi.messaging.InOnly; |
| import javax.jbi.messaging.MessageExchange; |
| import javax.jms.*; |
| import javax.naming.InitialContext; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.lang.IllegalStateException; |
| |
| public class MultiplexingConsumerProcessor extends AbstractJmsProcessor implements MessageListener { |
| |
| protected Session session; |
| protected Destination destination; |
| protected MessageConsumer consumer; |
| protected Map pendingMessages; |
| |
| public MultiplexingConsumerProcessor(JmsEndpoint endpoint) throws Exception { |
| super(endpoint); |
| } |
| |
| protected void doInit(InitialContext ctx) throws Exception { |
| session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| destination = endpoint.getDestination(); |
| if (destination == null) { |
| if (endpoint.getJndiDestinationName() != null) { |
| destination = (Destination) ctx.lookup(endpoint.getJndiDestinationName()); |
| } else if (endpoint.getJmsProviderDestinationName() != null) { |
| if (STYLE_QUEUE.equals(endpoint.getDestinationStyle())) { |
| destination = session.createQueue(endpoint.getJmsProviderDestinationName()); |
| } else { |
| destination = session.createTopic(endpoint.getJmsProviderDestinationName()); |
| } |
| } else { |
| throw new IllegalStateException("No destination provided"); |
| } |
| } |
| pendingMessages = new ConcurrentHashMap(); |
| consumer = session.createConsumer(destination); |
| } |
| |
| protected void doStart() throws Exception { |
| consumer.setMessageListener(this); |
| } |
| |
| protected void doStop() throws Exception { |
| consumer.setMessageListener(null); |
| } |
| |
| protected void doShutdown() throws Exception { |
| session = null; |
| destination = null; |
| consumer = null; |
| pendingMessages.clear(); |
| pendingMessages = null; |
| } |
| |
| public void onMessage(final Message message) { |
| logger.debug("Received jms message {}", message); |
| endpoint.getServiceUnit().getComponent().getExecutor(MessageExchange.Role.CONSUMER).execute(new Runnable() { |
| public void run() { |
| try { |
| logger.debug("Handling jms message {}", message); |
| Context context = createContext(); |
| MessageExchange exchange = toNMS(message, context); |
| // TODO: copy protocol messages |
| //inMessage.setProperty(JbiConstants.PROTOCOL_HEADERS, getHeaders(message)); |
| pendingMessages.put(exchange.getExchangeId(), context); |
| channel.send(exchange); |
| } catch (Throwable e) { |
| logger.error("Error while handling jms message", e); |
| } |
| } |
| }); |
| } |
| |
| public void process(MessageExchange exchange) throws Exception { |
| Context context = (Context) pendingMessages.remove(exchange.getExchangeId()); |
| // if context is null we lost it after a redeploy |
| // SM-782 : If exchange is InOnly and status = done > do nothing |
| if (exchange instanceof InOnly && exchange.getStatus() == ExchangeStatus.DONE) { |
| return; |
| } else { |
| Message message = (Message) context.getProperty(Message.class.getName()); |
| MessageProducer producer = null; |
| Message response = null; |
| try { |
| response = fromNMSResponse(exchange, context, session); |
| if (response != null) { |
| producer = session.createProducer(message.getJMSReplyTo()); |
| if (endpoint.isUseMsgIdInResponse()) { |
| response.setJMSCorrelationID(message.getJMSMessageID()); |
| } else { |
| response.setJMSCorrelationID(message.getJMSCorrelationID()); |
| } |
| producer.send(response); |
| } |
| } finally { |
| if (producer != null) { |
| producer.close(); |
| } |
| if (exchange.getStatus() == ExchangeStatus.ACTIVE) { |
| exchange.setStatus(ExchangeStatus.DONE); |
| channel.send(exchange); |
| } |
| } |
| } |
| } |
| |
| } |