[jboss-cvs] JBossRemoting/src/main/org/jboss/remoting/samples/callback/acknowledgement ...
Ron Sigal
ron_sigal at yahoo.com
Mon Nov 6 02:22:02 EST 2006
User: rsigal
Date: 06/11/06 02:22:02
Added: src/main/org/jboss/remoting/samples/callback/acknowledgement
CallbackAcknowledgeServer.java
CallbackAcknowledgeClient.java
Log:
JBREM-605: Sample for callback acknowledgement.
Revision Changes Path
1.1 date: 2006/11/06 07:22:02; author: rsigal; state: Exp;JBossRemoting/src/main/org/jboss/remoting/samples/callback/acknowledgement/CallbackAcknowledgeServer.java
Index: CallbackAcknowledgeServer.java
===================================================================
/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
/**
* Tests Callback acknowledgements.
*
* @author <a href="mailto:ron.sigal at jboss.com">Ron Sigal</a>
* <p/>
* Copyright (c) 2006
* </p>
*/
package org.jboss.remoting.samples.callback.acknowledgement;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.HashMap;
import javax.management.MBeanServer;
import org.jboss.remoting.InvocationRequest;
import org.jboss.remoting.InvokerLocator;
import org.jboss.remoting.ServerInvocationHandler;
import org.jboss.remoting.ServerInvoker;
import org.jboss.remoting.callback.Callback;
import org.jboss.remoting.callback.CallbackListener;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.callback.ServerInvokerCallbackHandler;
import org.jboss.remoting.transport.Connector;
public class CallbackAcknowledgeServer
{
public static final String PREPROCESS_TEST = "preprocessTest";
public static final String POSTPROCESS_TEST = "postprocessTest";
private static String transport = "socket";
private static String host;
private static int port = 5401;
private Connector connector;
/**
* Can pass transport and port to be used as parameters.
* Default to "socket" and 5401.
*
* @param args
*/
public static void main(String[] args)
{
if(args != null && args.length == 2)
{
transport = args[0];
port = Integer.parseInt(args[1]);
}
try
{
host = InetAddress.getLocalHost().getHostName();
}
catch (UnknownHostException e1)
{
System.err.println("cannot get local host name");
return;
}
String locatorURI = transport + "://" + host + ":" + port;
CallbackAcknowledgeServer server = new CallbackAcknowledgeServer();
try
{
server.setupServer(locatorURI);
// wait forever, let the user kill us at any point (at which point, the client will detect we went down)
while(true)
{
Thread.sleep(1000);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
public void setupServer(String locatorURI) throws Exception
{
connector = new Connector(new InvokerLocator(locatorURI));
connector.start();
connector.addInvocationHandler("test", new TestInvoocationHandler());
}
static class TestInvoocationHandler implements ServerInvocationHandler, CallbackListener
{
InvokerCallbackHandler callbackHandler;
public void setMBeanServer(MBeanServer server) {}
public void setInvoker(ServerInvoker invoker) {}
public Object invoke(InvocationRequest invocation) throws Throwable
{
String command = (String) invocation.getParameter();
System.out.println("command: " + command);
if (PREPROCESS_TEST.equals(command))
{
Callback cb = new Callback(PREPROCESS_TEST);
// Register as preprocess listener and pass callback id.
HashMap returnPayload = new HashMap();
returnPayload.put(ServerInvokerCallbackHandler.CALLBACK_PREPROCESS_LISTENER, this);
returnPayload.put(ServerInvokerCallbackHandler.CALLBACK_ID, "preprocess");
cb.setReturnPayload(returnPayload);
callbackHandler.handleCallback(cb);
}
else if (POSTPROCESS_TEST.equals(command))
{
Callback cb = new Callback(POSTPROCESS_TEST);
// Register as preprocess listener and pass callback id.
HashMap returnPayload = new HashMap();
returnPayload.put(ServerInvokerCallbackHandler.CALLBACK_POSTPROCESS_LISTENER, this);
returnPayload.put(ServerInvokerCallbackHandler.CALLBACK_ID, "postprocess");
cb.setReturnPayload(returnPayload);
callbackHandler.handleCallback(cb);
}
else
{
throw new Exception("unrecognized test command");
}
return null;
}
public void addListener(InvokerCallbackHandler callbackHandler)
{
this.callbackHandler = callbackHandler;
}
public void removeListener(InvokerCallbackHandler callbackHandler) {}
/**
* callbackSent() is called to acknowledgement the sending of a callback.
*/
public void callbackSent(Object callbackId, int preOrPost)
{
if (ServerInvokerCallbackHandler.CALLBACK_ACK_PREPROCESS == preOrPost)
{
System.out.println("received preprocess acknowledgment for callback: " + callbackId);
}
else if (ServerInvokerCallbackHandler.CALLBACK_ACK_POSTPROCESS == preOrPost)
{
System.out.println("received postprocess acknowledgment for callback: " + callbackId);
}
}
}
}
1.1 date: 2006/11/06 07:22:02; author: rsigal; state: Exp;JBossRemoting/src/main/org/jboss/remoting/samples/callback/acknowledgement/CallbackAcknowledgeClient.java
Index: CallbackAcknowledgeClient.java
===================================================================
/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
/**
* Tests Callback acknowledgements.
*
* @author <a href="mailto:ron.sigal at jboss.com">Ron Sigal</a>
* <p/>
* Copyright (c) 2006
* </p>
*/
package org.jboss.remoting.samples.callback.acknowledgement;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import org.jboss.remoting.Client;
import org.jboss.remoting.InvokerLocator;
import org.jboss.remoting.callback.Callback;
import org.jboss.remoting.callback.CallbackPoller;
import org.jboss.remoting.callback.HandleCallbackException;
import org.jboss.remoting.callback.InvokerCallbackHandler;
public class CallbackAcknowledgeClient
{
private static String transport = "socket";
private static String host;
private static int port = 5401;
private Client client;
/**
* Can pass transport and port to be used as parameters.
* Valid transports are 'rmi' and 'socket'.
*
* @param args
*/
public static void main(String[] args)
{
if(args != null && args.length == 2)
{
transport = args[0];
port = Integer.parseInt(args[1]);
}
try
{
host = InetAddress.getLocalHost().getHostName();
}
catch (UnknownHostException e1)
{
System.err.println("cannot get local host name");
return;
}
String locatorURI = transport + "://" + host + ":" + port;
CallbackAcknowledgeClient client = new CallbackAcknowledgeClient();
try
{
client.createRemotingClient(locatorURI);
client.testPullCallbackPreprocessAcknowledgement();
client.testPullCallbackPostprocessAcknowledgement();
client.testPollCallbackPreprocessAcknowledgement();
client.testPollCallbackPostprocessAcknowledgement();
client.testPushCallbackPreprocessAcknowledgement();
client.testPushCallbackPostprocessAcknowledgement();
client.disconnectRemotingClient();
}
catch(Throwable e)
{
e.printStackTrace();
}
System.out.println("done.");
}
public void createRemotingClient(String locatorURI) throws Exception
{
client = new Client(new InvokerLocator(locatorURI));
client.connect();
}
public void disconnectRemotingClient()
{
if (client != null)
client.disconnect();
}
/**
* In this test the connection is configured for true pull callbacks, and
* the acknowledgement should be made implicitly by ServerInvokerCallbackHandler
* during the call to getCallbacks() (before the callbacks are retrieved by
* the client).
*/
public void testPullCallbackPreprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
client.addListener(callbackHandler);
client.invoke(CallbackAcknowledgeServer.PREPROCESS_TEST);
Thread.sleep(2000);
List callbacks = client.getCallbacks(callbackHandler);
Iterator it = callbacks.iterator();
while (it.hasNext())
{
Callback callback = (Callback) it.next();
System.out.println("received pull callback: " + callback.getParameter());
}
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
/**
* In this test, the connection is configured for true pull callbacks, and the
* acknowledgement should be made by an explicit call to Client.acknowledgeCallback()
* after the callback has been retrieved and (presumably) processed.
*/
public void testPullCallbackPostprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
client.addListener(callbackHandler);
client.invoke(CallbackAcknowledgeServer.POSTPROCESS_TEST);
List callbacks = client.getCallbacks(callbackHandler);
Thread.sleep(2000);
Iterator it = callbacks.iterator();
while (it.hasNext())
{
Callback callback = (Callback) it.next();
System.out.println("received pull callback: " + callback.getParameter());
// Could acknowledge individual callbacks:
// ArrayList list = new ArrayList(1);
// list.add(callback);
// client.acknowledgeCallbacks(callbackHandler, list);
}
// Acknowledge pull callbacks.
client.acknowledgeCallbacks(callbackHandler, callbacks);
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
/**
* In this test the connection is configured for push callbacks implemented in
* Remoting by polling the server for callbacks and pushing them (on the client
* side) to the InvokerCallbackHandler. The acknowledgement should be made
* implicitly by ServerInvokerCallbackHandler during the call to getCallbacks()
* (before the callbacks are retrieved by the client).
*/
public void testPollCallbackPreprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
HashMap metadata = new HashMap();
metadata.put(CallbackPoller.CALLBACK_POLL_PERIOD, "100");
client.addListener(callbackHandler, metadata);
client.invoke(CallbackAcknowledgeServer.PREPROCESS_TEST);
Thread.sleep(2000);
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
/**
* In this test the connection is configured for push callbacks implemented in
* Remoting by polling the server for callbacks and pushing them (on the client
* side) to the InvokerCallbackHandler. The acknowledgement should be made
* implicitly by CallbackPoller, which it does by calling Client.acknowledgeCallback()
* after it has pushed the callback to the InvokerCallbackHandler.
*/
public void testPollCallbackPostprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
HashMap metadata = new HashMap();
metadata.put(CallbackPoller.CALLBACK_POLL_PERIOD, "100");
client.addListener(callbackHandler, metadata);
client.invoke(CallbackAcknowledgeServer.POSTPROCESS_TEST);
Thread.sleep(2000);
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
/**
* In this test the connection is configured for true push callbacks, and the
* acknowledgement should be made by ServerInvokerCallbackHandler.handleCallback()
* after it has pushed the Callback to the client.
*/
public void testPushCallbackPreprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
client.addListener(callbackHandler, null, null, true);
client.invoke(CallbackAcknowledgeServer.PREPROCESS_TEST);
Thread.sleep(2000);
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
/**
* In this test the connection is configured for true push callbacks, and the
* acknowledgement should be made by ServerInvokerCallbackHandler.handleCallback()
* after it has pushed the Callback to the client.
*/
public void testPushCallbackPostprocessAcknowledgement()
{
try
{
TestCallbackHandler callbackHandler = new TestCallbackHandler();
client.addListener(callbackHandler, null, null, true);
client.invoke(CallbackAcknowledgeServer.POSTPROCESS_TEST);
client.removeListener(callbackHandler);
}
catch (Throwable e)
{
System.out.println("failure: " + e.getMessage());
}
}
static class TestCallbackHandler implements InvokerCallbackHandler
{
public void handleCallback(Callback callback) throws HandleCallbackException
{
System.out.println("received push callback: " + callback.getParameter());
}
}
}
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