/*
* Copyright (C) 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.jboss.errai.bus.server.service;
import org.jboss.errai.bus.client.api.messaging.Message;
import org.jboss.errai.bus.client.api.messaging.RequestDispatcher;
import java.util.ArrayList;
import java.util.List;
/**
* @author Mike Brock
*/
public class RequestDispatcherProxy implements RequestDispatcher {
private List<Message> heldGlobalMessages = new ArrayList<Message>();
private List<Message> heldMessages = new ArrayList<Message>();
private RequestDispatcher proxied;
private boolean proxyClosed;
@Override
public void dispatchGlobal(Message message) throws Exception {
if (proxyClosed) {
proxied.dispatch(message);
}
else {
heldGlobalMessages.add(message);
}
}
@Override
public void dispatch(Message message) throws Exception {
if (proxyClosed) {
proxied.dispatch(message);
}
else {
heldMessages.add(message);
}
}
void closeProxy(RequestDispatcher dispatcher) {
try {
this.proxied = dispatcher;
this.proxyClosed = true;
for (Message message : heldMessages) {
dispatcher.dispatch(message);
}
for (Message message : heldGlobalMessages) {
dispatcher.dispatchGlobal(message);
}
heldMessages = null;
heldGlobalMessages = null;
}
catch (Exception e) {
throw new RuntimeException("failed to close proxy", e);
}
}
}