/**
* Licensed to the Austrian Association for Software Tool Integration (AASTI)
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. The AASTI 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.openengsb.ports.jms;
import java.util.HashMap;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.openengsb.core.common.remote.FilterChain;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessagePostProcessor;
import org.springframework.jms.listener.SimpleMessageListenerContainer;
public class JMSIncomingPort {
private static final Logger LOGGER = LoggerFactory.getLogger(JMSIncomingPort.class);
private static final String DISABLE_ENCRYPTION = "org.openengsb.jms.noencrypt";
private JMSTemplateFactory factory;
private ConnectionFactory connectionFactory;
private SimpleMessageListenerContainer simpleMessageListenerContainer;
private FilterChain filterChain;
private String receive = "receive";
/*
* TODO OPENENGSB-1575 this property is kind of a hack and should be replaced by proper dynamic port configuration
*/
private FilterChain unsecureFilterChain;
public void start() {
simpleMessageListenerContainer = createListenerContainer(receive, new MessageListener() {
@Override
public void onMessage(Message message) {
LOGGER.trace("JMS-message recieved. Checking if the type is supported");
if (!(message instanceof TextMessage)) {
LOGGER.debug("Received JMS-message is not type of text message.");
return;
}
LOGGER.trace("Received a text message and start parsing");
TextMessage textMessage = (TextMessage) message;
String textContent = extractTextFromMessage(textMessage);
HashMap<String, Object> metadata = new HashMap<String, Object>();
String result = null;
try {
LOGGER.debug("starting filterchain for incoming message");
result = (String) getFilterChainToUse().filter(textContent, metadata);
} catch (Exception e) {
LOGGER.error("an error occured when processing the filterchain", e);
result = ExceptionUtils.getStackTrace(e);
}
Destination replyQueue;
final String correlationID;
try {
if (message.getJMSCorrelationID() == null) {
correlationID = message.getJMSMessageID();
} else {
correlationID = message.getJMSCorrelationID();
}
replyQueue = message.getJMSReplyTo();
} catch (JMSException e) {
LOGGER.warn("error when getting destination queue or correlationid from client message: {}", e);
return;
}
if (replyQueue == null) {
LOGGER.warn("no replyTo destination specifyed could not send response");
return;
}
new JmsTemplate(connectionFactory).convertAndSend(replyQueue, result, new MessagePostProcessor() {
@Override
public Message postProcessMessage(Message message) throws JMSException {
message.setJMSCorrelationID(correlationID);
return message;
}
});
}
private String extractTextFromMessage(TextMessage textMessage) {
try {
return textMessage.getText();
} catch (JMSException e) {
throw new IllegalStateException("Couldn't extract text from jms message", e);
}
}
});
simpleMessageListenerContainer.start();
}
private SimpleMessageListenerContainer createListenerContainer(String destination, MessageListener listener) {
SimpleMessageListenerContainer messageListenerContainer = factory.createMessageListenerContainer();
messageListenerContainer.setPubSubNoLocal(true);
messageListenerContainer.setConnectionFactory(connectionFactory);
messageListenerContainer.setDestinationName(destination);
messageListenerContainer.setMessageListener(listener);
return messageListenerContainer;
}
public void stop() {
if (simpleMessageListenerContainer != null) {
simpleMessageListenerContainer.stop();
}
}
/*
* TODO OPENENGSB-1575 this property is kind of a hack and should be replaced by proper dynamic port configuration
*/
private FilterChain getFilterChainToUse() {
if (Boolean.getBoolean(DISABLE_ENCRYPTION)) {
return unsecureFilterChain;
}
return filterChain;
}
public void setFactory(JMSTemplateFactory factory) {
this.factory = factory;
}
public void setConnectionFactory(ConnectionFactory connectionFactory) {
this.connectionFactory = connectionFactory;
}
public void setFilterChain(FilterChain filterChain) {
this.filterChain = filterChain;
}
public void setUnsecureFilterChain(FilterChain unsecureFilterChain) {
this.unsecureFilterChain = unsecureFilterChain;
}
public void setReceive(String receive) {
this.receive = receive;
}
}