/*
* Copyright 2010 JBoss, a divison Red Hat, Inc
*
* 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.io;
import org.jboss.errai.bus.client.api.Message;
import org.jboss.errai.bus.client.api.MessageCallback;
import org.jboss.errai.bus.client.api.base.MessageDeliveryFailure;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import static java.util.Collections.unmodifiableSet;
/**
* <tt>RemoteServiceCallback</tt> implements callback functionality for a remote service. It invokes the callback
* functions for all endpoints specified
*/
public class RemoteServiceCallback implements MessageCallback {
private final Map<String, MessageCallback> endpoints;
/**
* Initializes the <tt>RemoteServiceCallback</tt> with a set of endpoints and their callback functions
*
* @param endpoints - Map of endpoints to their callback function
*/
public RemoteServiceCallback(Map<String, MessageCallback> endpoints) {
this.endpoints = Collections.unmodifiableMap(endpoints);
}
/**
* Invokes all callback functions that can be associated to the <tt>message</tt>
*
* @param message - the message in question
*/
public void callback(Message message) {
if (!endpoints.containsKey(message.getCommandType())) {
throw new MessageDeliveryFailure("no such endpoint '" + message.getCommandType() + "' in service: " + message.getSubject());
}
endpoints.get(message.getCommandType()).callback(message);
}
public Set<String> getEndpoints() {
return unmodifiableSet(endpoints.keySet());
}
}