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Posted to commits@qpid.apache.org by ra...@apache.org on 2012/03/08 22:41:56 UTC
svn commit: r1298598 -
/qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java
Author: rajith
Date: Thu Mar 8 21:41:56 2012
New Revision: 1298598
URL: http://svn.apache.org/viewvc?rev=1298598&view=rev
Log:
QPID-3732 Committing a patch by Weston Price.
This file somehow slipped through the cracks when committing the first
patch.
Added:
qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java
Added: qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java
URL: http://svn.apache.org/viewvc/qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java?rev=1298598&view=auto
==============================================================================
--- qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java (added)
+++ qpid/trunk/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java Thu Mar 8 21:41:56 2012
@@ -0,0 +1,283 @@
+/*
+ *
+ * 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 java.lang.Thread;
+
+import javax.annotation.Resource;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+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.QpidTest;
+import org.apache.qpid.jca.example.ejb.QpidUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("serial")
+public class QpidRequestResponseServlet 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_XA = false;
+ private static final boolean DEFAULT_TX = false;
+ private static final boolean USE_TMP_QUEUE = false;
+
+ @Resource(@jndi.scheme@="@qpid.xacf.jndi.name@")
+ private ConnectionFactory _connectionFactory;
+
+ @Resource(@jndi.scheme@="QpidRequestQueue")
+ private Destination _queue;
+
+ @Resource(@jndi.scheme@="QpidResponseQueue")
+ private Destination _responseQueue;
+
+
+ @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;
+ boolean useTx = false;
+ MessageConsumer messageConsumer = null;
+ long startTime = 0;
+
+ try
+ {
+ String content = (req.getParameter("message") == null) ? DEFAULT_MESSAGE : req.getParameter("message");
+ int count = (req.getParameter("count") == null) ? DEFAULT_COUNT : Integer.valueOf(req.getParameter("count"));
+ useXA = (req.getParameter("useXA") == null) ? DEFAULT_XA : Boolean.valueOf(req.getParameter("useXA"));
+ useTx = (req.getParameter("useTx") == null) ? DEFAULT_TX : Boolean.valueOf(req.getParameter("useTx"));
+
+ ctx = new InitialContext();
+
+ _log.debug("Environment: ");
+ _log.debug("Message content: " + content);
+ _log.debug("Message count:" + count);
+ _log.debug("Using XA: " + useXA);
+
+ resp.getOutputStream().println("Environment: ");
+ resp.getOutputStream().println("Message content: " + content);
+ resp.getOutputStream().println("Message count:" + count);
+ resp.getOutputStream().println("Using XA: " + useXA);
+
+ try
+ {
+
+ connection = _connectionFactory.createConnection();
+
+ if(useXA)
+ {
+ ut = (UserTransaction)ctx.lookup("java:comp/UserTransaction");
+ ut.begin();
+ useTx = false;
+ }
+
+ session = (useXA) ? connection.createSession(false, Session.AUTO_ACKNOWLEDGE) : connection.createSession(useTx, Session.AUTO_ACKNOWLEDGE);
+ messageProducer = session.createProducer(_queue);
+
+ startTime = System.currentTimeMillis();
+
+ for(int i = 0; i < count; i++)
+ {
+ TextMessage message = session.createTextMessage(content);
+ message.setJMSReplyTo(_responseQueue);
+ messageProducer.send(message);
+ }
+
+ }
+ catch(Exception e)
+ {
+ rollback = true;
+
+ if(useXA && ut != null)
+ {
+ try
+ {
+ ut.setRollbackOnly();
+ }
+ catch(Exception ex)
+ {
+ _log.error(ex.getMessage(), ex);
+ throw new ServletException(ex.getMessage(), ex);
+ }
+ }
+ }
+ finally
+ {
+ try
+ {
+ if(useXA && ut != null)
+ {
+ if(rollback)
+ {
+ ut.rollback();
+ }
+ else
+ {
+ ut.commit();
+ }
+ }
+ if(useTx && !useXA)
+ {
+ if(rollback)
+ {
+ session.rollback();
+ }
+ else
+ {
+ session.commit();
+ }
+ }
+ }
+ catch(Exception e)
+ {
+ _log.error(e.getMessage(), e);
+ throw new ServletException(e.getMessage(), e);
+ }
+
+ QpidUtil.closeResources(messageProducer, session);
+ }
+
+ resp.getOutputStream().println("Sent " + count + " messages with content '" + content + "'");
+ resp.getOutputStream().flush();
+
+ int ackMode = Session.AUTO_ACKNOWLEDGE;
+ rollback = false;
+
+ if(useXA)
+ {
+ ut.begin();
+ }
+
+ session = (useXA) ? connection.createSession(false, Session.AUTO_ACKNOWLEDGE) : connection.createSession(useTx, Session.AUTO_ACKNOWLEDGE);
+ messageConsumer = session.createConsumer(_responseQueue);
+ connection.start();
+
+ for(int i = 0; i < count; i++)
+ {
+ TextMessage message = (TextMessage)messageConsumer.receive(5000);
+
+ if(message != null)
+ {
+ message.acknowledge();
+ content = message.getText();
+
+ }
+ }
+
+ startTime = System.currentTimeMillis() - startTime;
+ resp.getOutputStream().println("Received " + count + " messages with content '" + content + "'");
+ resp.getOutputStream().println("Total process time " + startTime);
+ }
+ catch(Exception e)
+ {
+ rollback = true;
+
+ if(useXA && ut != null)
+ {
+ try
+ {
+ ut.setRollbackOnly();
+ }
+ catch(Exception ex)
+ {
+ _log.error(ex.getMessage(), ex);
+ throw new ServletException(ex.getMessage(), ex);
+ }
+ }
+ }
+ 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);
+
+ }
+ }
+
+ if(useTx && !useXA)
+ {
+ try
+ {
+ if(rollback)
+ {
+ session.rollback();
+ }
+ else
+ {
+ session.commit();
+ }
+ }
+ catch(Exception e)
+ {
+ _log.error(e.getMessage(), e);
+ throw new ServletException(e.getMessage(), e);
+ }
+ }
+
+ QpidUtil.closeResources(messageProducer, session);
+ }
+ }
+
+}
+
+
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