/*
* 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
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*/
package org.jboss.test.remoting.callback.push;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.management.MBeanServer;
import junit.framework.TestCase;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.jboss.remoting.Client;
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.HandleCallbackException;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.transport.Connector;
import org.jboss.remoting.transport.PortUtil;
/**
* Unit tests for JBREM-727.
*
* @author <a href="ron.sigal@jboss.com">Ron Sigal</a>
* @version $Revision: 2320 $
* <p>
* Copyright Mar 15, 2007
* </p>
*/
public class ImplicitCallbackConnectorTestCase extends TestCase
{
private static final String CALLBACK_TEST = "callbackTest";
private static Logger log = Logger.getLogger(ImplicitCallbackConnectorTestCase.class);
private static boolean firstTime = true;
// remoting server connector
private Connector connector;
private SampleInvocationHandler invocationHandler;
private Client client;
/**
* Sets up target remoting server and client.
*/
public void setUp() throws Exception
{
if (firstTime)
{
firstTime = false;
Logger.getLogger("org.jboss.remoting").setLevel(Level.INFO);
Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO);
String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n";
PatternLayout layout = new PatternLayout(pattern);
ConsoleAppender consoleAppender = new ConsoleAppender(layout);
Logger.getRootLogger().addAppender(consoleAppender);
}
String host = InetAddress.getLocalHost().getHostAddress();
int port = PortUtil.findFreePort(host);
String locatorURI = getTransport() + "://" + host + ":" + port;
InvokerLocator serverLocator = new InvokerLocator(locatorURI);
log.info("Starting remoting server with locator uri of: " + locatorURI);
HashMap serverConfig = new HashMap();
serverConfig.put(InvokerLocator.FORCE_REMOTE, "true");
addExtraServerConfig(serverConfig);
connector = new Connector(serverLocator, serverConfig);
connector.create();
invocationHandler = new SampleInvocationHandler();
connector.addInvocationHandler("sample", invocationHandler);
connector.start();
log.info("Started remoting server with locator uri of: " + locatorURI);
HashMap clientConfig = new HashMap();
clientConfig.put(InvokerLocator.FORCE_REMOTE, "true");
addExtraServerConfig(clientConfig);
client = new Client(serverLocator, clientConfig);
client.connect();
log.info("Client is connected to " + serverLocator);
}
/**
* Shuts down the server and client
*/
public void tearDown()
{
if (client != null)
{
client.disconnect();
}
if (connector != null)
{
connector.stop();
connector.destroy();
}
}
public void testMultipleCallbackConnectors() throws Throwable
{
log.info("entering " + getName());
SimpleCallbackHandler callbackHandler = new SimpleCallbackHandler();
int COUNT = 5;
for (int i = 0; i < COUNT; i++)
{
client.addListener(callbackHandler, new HashMap(), null, true);
}
log.info("client added callback handlers");
Set callbackConnectors = client.getCallbackConnectors(callbackHandler);
assertNotNull(callbackConnectors);
assertEquals(5, callbackConnectors.size());
Class[] classes = ServerInvoker.class.getDeclaredClasses();
Class callbackContainerClass = null;
for (int i = 0; i < classes.length; i++)
{
log.info(classes[i]);
String fqn = classes[i].getName();
String className = fqn.substring(fqn.lastIndexOf('.') + 1);
log.info(className);
if ("ServerInvoker$CallbackContainer".equals(className))
{
callbackContainerClass = classes[i];
break;
}
}
assertTrue(callbackContainerClass != null);
Method method = callbackContainerClass.getDeclaredMethod("getCallbackHandler", new Class[] {});
method.setAccessible(true);
Field field = ServerInvoker.class.getDeclaredField("clientCallbackListener");
field.setAccessible(true);
Iterator it = callbackConnectors.iterator();
while (it.hasNext())
{
Connector callbackConnector = (Connector) it.next();
ServerInvoker serverInvoker = callbackConnector.getServerInvoker();
Map clientCallbackListener = (Map) field.get(serverInvoker);
assertEquals(1, clientCallbackListener.size());
Object callbackContainer = clientCallbackListener.values().iterator().next();
assertEquals(callbackHandler, method.invoke(callbackContainer, new Object[]{}));
}
client.invoke(CALLBACK_TEST);
assertEquals(COUNT, callbackHandler.callbackCounter);
client.removeListener(callbackHandler);
callbackConnectors = client.getCallbackConnectors(callbackHandler);
assertNull(callbackConnectors);
}
public void testReusedCallbackConnectorsSameHandler() throws Throwable
{
log.info("entering " + getName());
SimpleCallbackHandler callbackHandler = new SimpleCallbackHandler();
client.addListener(callbackHandler, new HashMap(), null, true);
log.info("client added callback handler first time");
Set callbackConnectors = client.getCallbackConnectors(callbackHandler);
assertNotNull(callbackConnectors);
assertEquals(1, callbackConnectors.size());
Connector callbackConnector = (Connector) callbackConnectors.iterator().next();
client.addListener(callbackHandler, callbackConnector.getLocator());
log.info("client added callback handler second time");
callbackConnectors = client.getCallbackConnectors(callbackHandler);
assertNotNull(callbackConnectors);
assertEquals(1, callbackConnectors.size());
Class[] classes = ServerInvoker.class.getDeclaredClasses();
Class callbackContainerClass = null;
for (int i = 0; i < classes.length; i++)
{
log.info(classes[i]);
String fqn = classes[i].getName();
String className = fqn.substring(fqn.lastIndexOf('.') + 1);
log.info(className);
if ("ServerInvoker$CallbackContainer".equals(className))
{
callbackContainerClass = classes[i];
break;
}
}
assertTrue(callbackContainerClass != null);
Method method = callbackContainerClass.getDeclaredMethod("getCallbackHandler", new Class[] {});
method.setAccessible(true);
Field field = ServerInvoker.class.getDeclaredField("clientCallbackListener");
field.setAccessible(true);
ServerInvoker serverInvoker = callbackConnector.getServerInvoker();
Map clientCallbackListener = (Map) field.get(serverInvoker);
assertEquals(1, clientCallbackListener.size());
Object callbackContainer = clientCallbackListener.values().iterator().next();
assertEquals(callbackHandler, method.invoke(callbackContainer, new Object[]{}));
client.invoke(CALLBACK_TEST);
assertEquals(1, callbackHandler.callbackCounter);
client.removeListener(callbackHandler);
callbackConnectors = client.getCallbackConnectors(callbackHandler);
assertNull(callbackConnectors);
}
public void testReusedCallbackConnectorsDifferentHandlers() throws Throwable
{
log.info("entering " + getName());
SimpleCallbackHandler callbackHandler1 = new SimpleCallbackHandler();
client.addListener(callbackHandler1, new HashMap(), null, true);
log.info("client added first callback handler");
Set callbackConnectors = client.getCallbackConnectors(callbackHandler1);
assertNotNull(callbackConnectors);
assertEquals(1, callbackConnectors.size());
Connector callbackConnector = (Connector) callbackConnectors.iterator().next();
SimpleCallbackHandler callbackHandler2 = new SimpleCallbackHandler();
client.addListener(callbackHandler2, callbackConnector.getLocator());
callbackConnectors = client.getCallbackConnectors(callbackHandler1);
assertNotNull(callbackConnectors);
assertEquals(1, callbackConnectors.size());
assertNull(client.getCallbackConnectors(callbackHandler2));
Class[] classes = ServerInvoker.class.getDeclaredClasses();
Class callbackContainerClass = null;
for (int i = 0; i < classes.length; i++)
{
log.info(classes[i]);
String fqn = classes[i].getName();
String className = fqn.substring(fqn.lastIndexOf('.') + 1);
log.info(className);
if ("ServerInvoker$CallbackContainer".equals(className))
{
callbackContainerClass = classes[i];
break;
}
}
assertTrue(callbackContainerClass != null);
Method method = callbackContainerClass.getDeclaredMethod("getCallbackHandler", new Class[] {});
method.setAccessible(true);
Field field = ServerInvoker.class.getDeclaredField("clientCallbackListener");
field.setAccessible(true);
ServerInvoker serverInvoker = callbackConnector.getServerInvoker();
Map clientCallbackListener = (Map) field.get(serverInvoker);
assertEquals(2, clientCallbackListener.size());
Iterator it = clientCallbackListener.values().iterator();
Object callbackContainer1 = it.next();
Object callbackContainer2 = it.next();
assertTrue(
callbackHandler1.equals(method.invoke(callbackContainer1, new Object[]{})) &&
callbackHandler2.equals(method.invoke(callbackContainer2, new Object[]{}))
||
callbackHandler1.equals(method.invoke(callbackContainer2, new Object[]{})) &&
callbackHandler2.equals(method.invoke(callbackContainer1, new Object[]{})));
client.invoke(CALLBACK_TEST);
assertEquals(1, callbackHandler1.callbackCounter);
assertEquals(1, callbackHandler2.callbackCounter);
client.removeListener(callbackHandler1);
callbackConnectors = client.getCallbackConnectors(callbackHandler1);
assertNull(callbackConnectors);
}
protected String getTransport()
{
return "socket";
}
protected void addExtraClientConfig(Map config)
{
}
protected void addExtraServerConfig(Map config)
{
}
/**
* Simple invocation handler implementation. When callback client's are registered, will
* generate callbacks periodically.
*/
static class SampleInvocationHandler implements ServerInvocationHandler
{
public Set callbackHandlers = new HashSet();
private int counter = 0;
public void addListener(InvokerCallbackHandler callbackHandler)
{
System.out.println("Adding callback listener.");
callbackHandlers.add(callbackHandler);
}
public Object invoke(InvocationRequest invocation) throws Throwable
{
Object payload = invocation.getParameter();
if (CALLBACK_TEST.equals(payload))
{
try
{
Iterator it = callbackHandlers.iterator();
while (it.hasNext())
{
InvokerCallbackHandler callbackHandler = (InvokerCallbackHandler) it.next();
log.info("sending callback: " + ++counter);
callbackHandler.handleCallback(new Callback("callback"));
}
log.info("sent callback");
}
catch (HandleCallbackException e)
{
log.error("Unable to send callback");
}
return null;
}
else
{
throw new Exception("unrecognized invocation: " + payload);
}
}
public void removeListener(InvokerCallbackHandler callbackHandler) {}
public void setMBeanServer(MBeanServer server) {}
public void setInvoker(ServerInvoker invoker) {}
}
static class SimpleCallbackHandler implements InvokerCallbackHandler
{
public int callbackCounter;
private Object lock = new Object();
public void handleCallback(Callback callback) throws HandleCallbackException
{
log.debug("received callback: " + callback.getParameter());
synchronized (lock)
{
callbackCounter++;
}
}
}
}