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/*
*
* 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.qpid.jca.example.web;
import java.io.IOException;
import javax.annotation.Resource;
import javax.ejb.EJB;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.InitialContext;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.transaction.UserTransaction;
import org.apache.qpid.jca.example.ejb.QpidTestLocal;
import org.apache.qpid.jca.example.ejb.QpidUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SuppressWarnings("serial")
public class QpidTestServlet extends HttpServlet
{
private static final Logger _log = LoggerFactory.getLogger(QpidTestServlet.class);
private static final String DEFAULT_MESSAGE = "Hello, World!";
private static final int DEFAULT_COUNT = 1;
private static final boolean DEFAULT_TOPIC = false;
private static final boolean DEFAULT_XA = false;
private static final boolean DEFAULT_SAY_GOODBYE = true;
@Resource(@jndi.scheme@="@qpid.xacf.jndi.name@")
private ConnectionFactory _connectionFactory;
@Resource(@jndi.scheme@="HelloQueue")
private Destination _queue;
@Resource(@jndi.scheme@="HelloTopic")
private Destination _topic;
@EJB
private QpidTestLocal ejb;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
InitialContext ctx = null;
Connection connection = null;
Session session = null;
MessageProducer messageProducer = null;
UserTransaction ut = null;
boolean useXA = false;
boolean rollback = false;
try
{
String content = (req.getParameter("message") == null) ? DEFAULT_MESSAGE : req.getParameter("message");
boolean useEJB = (req.getParameter("useEJB") == null) ? false : Boolean.valueOf(req.getParameter("useEJB"));
int count = (req.getParameter("count") == null) ? DEFAULT_COUNT : Integer.valueOf(req.getParameter("count"));
boolean useTopic = (req.getParameter("useTopic") == null) ? DEFAULT_TOPIC : Boolean.valueOf(req.getParameter("useTopic"));
useXA = (req.getParameter("useXA") == null) ? DEFAULT_XA : Boolean.valueOf(req.getParameter("useXA"));
ctx = new InitialContext();
boolean sayGoodBye = (req.getParameter("sayGoodBye") == null) ? DEFAULT_SAY_GOODBYE : Boolean.valueOf(req.getParameter("sayGoodBye"));
_log.debug("Environment: ");
_log.debug("Message content: " + content);
_log.debug("Message count:" + count);
_log.debug("Protocol: " + ((useEJB) ? "EJB" : "JMS"));
_log.debug("Destination Type: " + ((useTopic) ? "Topic" : "Queue"));
_log.debug("Using XA: " + useXA);
_log.debug("Say GoodBye: ", sayGoodBye);
resp.getOutputStream().println("Environment: ");
resp.getOutputStream().println("Message content: " + content);
resp.getOutputStream().println("Message count:" + count);
resp.getOutputStream().println("Protocol: " + ((useEJB) ? "EJB" : "JMS"));
resp.getOutputStream().println("Destination Type: " + ((useTopic) ? "Topic" : "Queue"));
resp.getOutputStream().println("Using XA: " + useXA);
resp.getOutputStream().println("Say GoodBye: " + sayGoodBye);
if(useEJB)
{
ejb.testQpidAdapter(content, count, useTopic, false, sayGoodBye);
}
else
{
if(useXA)
{
ut = (UserTransaction)ctx.lookup("java:comp/UserTransaction");
ut.begin();
}
connection = _connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
messageProducer = (useTopic) ? session.createProducer(_topic) : session.createProducer(_queue);
for(int i = 0; i < count; i++)
{
TextMessage message = session.createTextMessage(content);
message.setBooleanProperty("say.goodbye", sayGoodBye);
messageProducer.send(message);
}
}
resp.getOutputStream().println("Sent " + count + " messages with content '" + content + "'");
resp.getOutputStream().flush();
}
catch(Exception e)
{
if(useXA && ut != null)
{
try
{
rollback = true;
ut.setRollbackOnly();
}
catch(Exception ex)
{
_log.error(ex.getMessage(), ex);
throw new ServletException(ex.getMessage(), ex);
}
}
_log.error(e.getMessage(), e);
throw new ServletException(e.getMessage(), e);
}
finally
{
if(useXA && ut != null)
{
try
{
if(rollback)
{
ut.rollback();
}
else
{
ut.commit();
}
}
catch(Exception e)
{
_log.error(e.getMessage(), e);
throw new ServletException(e.getMessage(), e);
}
}
QpidUtil.closeResources(session, connection, ctx);
}
}
}
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