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/*******************************************************************************
* Copyright (c) 2010 protos software gmbh (http://www.protos.de).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.etrice.runtime.java.messaging;
import java.util.HashMap;
/**
* The message dispatcher class used by the MessageService.
*
* @author Thomas Schuetz
*
*/
public class MessageDispatcher extends RTObject implements IMessageReceiver {
private HashMap<Number, IMessageReceiver> local_map = new HashMap<Number, IMessageReceiver>();
private HashMap<Number, IMessageReceiver> thread_map = new HashMap<Number, IMessageReceiver>();
private HashMap<Number, IMessageReceiver> node_map = new HashMap<Number, IMessageReceiver>();
private Address address = null;
public MessageDispatcher(IRTObject parent, Address addr, String name){
super(parent, name);
address = addr;
}
public void addMessageReceiver(IMessageReceiver receiver){
if (receiver.getAddress()==null)
return;
// TODO: does only work same thread (else)
if (receiver.getAddress().nodeID != address.nodeID){
node_map.put(receiver.getAddress().objectID, receiver);
}
else if(receiver.getAddress().threadID != address.threadID){
thread_map.put(receiver.getAddress().objectID, receiver);
}
else {
local_map.put(receiver.getAddress().objectID, receiver);
}
}
@Override
public void receive(Message msg) {
// TODO: does only work same thread (else)
IMessageReceiver receiver = null;
if (msg.getAddress().nodeID != address.nodeID){
receiver = node_map.get(msg.getAddress().objectID);
}
else if(msg.getAddress().threadID != address.threadID){
receiver = thread_map.get(msg.getAddress().objectID);
}
else {
// Same node, same thread -> local call Dispatch Map
receiver = local_map.get(msg.getAddress().objectID);
}
if(receiver!=null)
{
receiver.receive(msg);
// TODO: error handling for not found addresses
}
}
@Override
public Address getAddress() {
return address;
}
}
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