/**
* 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.cxf.transport.jms.util;
import java.util.Enumeration;
import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.QueueBrowser;
import javax.jms.Session;
import org.apache.cxf.transport.jms.JMSConstants;
public final class JMSUtil {
private static final char[] CORRELATTION_ID_PADDING = {
'0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0'
};
private JMSUtil() {
}
public static Message receive(Session session,
Destination replyToDestination,
String correlationId,
long receiveTimeout,
boolean pubSubNoLocal) {
try (ResourceCloser closer = new ResourceCloser()) {
String messageSelector = correlationId == null ? null : "JMSCorrelationID = '" + correlationId + "'";
MessageConsumer consumer = closer.register(session.createConsumer(replyToDestination, messageSelector,
pubSubNoLocal));
javax.jms.Message replyMessage = consumer.receive(receiveTimeout);
if (replyMessage == null) {
throw new RuntimeException("Timeout receiving message with correlationId "
+ correlationId);
}
return replyMessage;
} catch (JMSException e) {
throw convertJmsException(e);
}
}
public static RuntimeException convertJmsException(JMSException e) {
return new RuntimeException(e.getMessage(), e);
}
public static String createCorrelationId(final String prefix, long sequenceNUm) {
String index = Long.toHexString(sequenceNUm);
StringBuilder id = new StringBuilder(prefix);
id.append(CORRELATTION_ID_PADDING, 0, 16 - index.length());
id.append(index);
return id.toString();
}
/**
* Create a JMS of the appropriate type populated with the given payload.
*
* @param payload the message payload, expected to be either of type String or byte[] depending on payload
* type
* @param session the JMS session
* @param replyTo the ReplyTo destination if any
* @return a JMS of the appropriate type populated with the given payload
*/
public static Message createAndSetPayload(Object payload, Session session, String messageType)
throws JMSException {
Message message = null;
if (JMSConstants.TEXT_MESSAGE_TYPE.equals(messageType)) {
message = session.createTextMessage((String)payload);
} else if (JMSConstants.BYTE_MESSAGE_TYPE.equals(messageType)) {
message = session.createBytesMessage();
((BytesMessage)message).writeBytes((byte[])payload);
} else {
message = session.createObjectMessage();
((ObjectMessage)message).setObject((byte[])payload);
}
return message;
}
public static Queue createQueue(Connection connection, String name) throws JMSException {
Session session = null;
try {
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
return session.createQueue(name);
} finally {
if (session != null) {
session.close();
}
}
}
public static int getNumMessages(Connection connection, Queue queue) throws JMSException {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueBrowser browser = session.createBrowser(queue);
@SuppressWarnings("unchecked")
Enumeration<Message> messages = browser.getEnumeration();
int actualNum = 0;
while (messages.hasMoreElements()) {
actualNum++;
messages.nextElement();
}
return actualNum;
}
}