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/*
* 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.
*/
package org.jboss.test.remoting.performance.synchronous;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.management.MBeanServer;
import org.jboss.logging.Logger;
import org.jboss.remoting.InvocationRequest;
import org.jboss.remoting.ServerInvocationHandler;
import org.jboss.remoting.ServerInvoker;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.callback.ServerInvokerCallbackHandler;
import org.jboss.remoting.invocation.RemoteInvocation;
import EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap;
import EDU.oswego.cs.dl.util.concurrent.FIFOReadWriteLock;
import EDU.oswego.cs.dl.util.concurrent.SyncList;
/**
* @author <a href="mailto:tom.elrod@jboss.com">Tom Elrod</a>
*/
public class PerformanceInvocationHandler implements ServerInvocationHandler
{
private ServerInvoker invoker;
private List listeners = new SyncList(new ArrayList(), new FIFOReadWriteLock());
private Map callTrackers = new ConcurrentHashMap();
private static final Logger log = Logger.getLogger(PerformanceInvocationHandler.class);
/**
* set the mbean server that the handler can reference
*
* @param server
*/
public void setMBeanServer(MBeanServer server)
{
}
/**
* set the invoker that owns this handler
*
* @param invoker
*/
public void setInvoker(ServerInvoker invoker)
{
this.invoker = invoker;
}
/**
* called to handle a specific invocation. Please take care to make sure
* implementations are thread safe and can, and often will, receive concurrent
* calls on this method.
*
* @param invocation
* @return
* @throws Throwable
*/
public Object invoke(InvocationRequest invocation) throws Throwable
{
Object param = invocation.getParameter();
String sessionId = invocation.getSessionId();
String methodName = "";
Object[] params = null;
String[] sig = null;
if(param instanceof RemoteInvocation)
{
RemoteInvocation rminvo = (RemoteInvocation) param;
methodName = rminvo.getMethodName();
params = rminvo.getParameters();
}
else
{
throw new Exception("Unknown invocation payload (" + param + "). " +
"Should be instance of RemoteInvocation.");
}
Object ret = null;
if(methodName.equals(PerformanceClientTest.NUM_OF_CALLS))
{
Integer totalCountInteger = (Integer) params[0];
int totalCount = totalCountInteger.intValue();
System.out.println("received totalCallCount call with total count of " + totalCount + " from " + sessionId);
CallTracker tracker = (CallTracker) callTrackers.get(sessionId);
if(tracker != null)
{
tracker.createTotalCount(totalCount);
ret = totalCountInteger;
}
else
{
log.error("Calling " + methodName + " but no call tracker exists for session id " + sessionId);
throw new Exception("Calling " + methodName + " but no call tracker exists for session id " + sessionId);
}
}
else if(methodName.equals(PerformanceClientTest.TEST_INVOCATION))
{
if(params != null)
{
Payload payload = (Payload) params[0];
//System.out.println(payload);
int clientInvokeCallCount = payload.getCallNumber();
CallTracker tracker = (CallTracker) callTrackers.get(sessionId);
if(tracker != null)
{
tracker.verifyClientInvokeCount(clientInvokeCallCount);
}
else
{
log.error("Calling " + methodName + " but no call tracker exists for session id " + sessionId);
throw new Exception("Calling " + methodName + " but no call tracker exists for session id " + sessionId);
}
// just passing return, even though not needed
ret = new Integer(clientInvokeCallCount);
}
else
{
log.error("no parameter passed for method call " + methodName);
}
}
else
{
throw new Exception("Don't know what to do with call to " + methodName);
}
return ret;
}
private void createCallTracker(String sessionId, InvokerCallbackHandler callbackHandler)
{
CallTracker tracker = new CallTracker(sessionId, callbackHandler);
callTrackers.put(sessionId, tracker);
}
/**
* Adds a callback handler that will listen for callbacks from
* the server invoker handler.
*
* @param callbackHandler
*/
public void addListener(InvokerCallbackHandler callbackHandler)
{
ServerInvokerCallbackHandler handler = (ServerInvokerCallbackHandler) callbackHandler;
String sessionId = handler.getClientSessionId();
System.out.println("Adding callback listener. Callback handler has session id: " + sessionId);
createCallTracker(sessionId, callbackHandler);
listeners.add(callbackHandler);
}
/**
* Removes the callback handler that was listening for callbacks
* from the server invoker handler.
*
* @param callbackHandler
*/
public void removeListener(InvokerCallbackHandler callbackHandler)
{
//TODO: -TME Need to figure out how this should be handled.
// Could look up CallTracker based on session id (as in addListener() method)
// and then remove from tracker or kill tracker all together.
listeners.remove(callbackHandler);
}
}
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