/*
    * Copyright 2002-2013 the original author or authors.
    *
    * 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.springframework.messaging;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * A stub MessageChannel that saves all sent messages.
   *
   * @author Rossen Stoyanchev
   */
  public class StubMessageChannel implements SubscribableChannel {
  
  	private final List<Message<byte[]>> messages = new ArrayList<>();
  
  	private final List<MessageHandler> handlers = new ArrayList<>();
  
  
  	public List<Message<byte[]>> getMessages() {
  		return this.messages;
  	}
  
  	@Override
  	@SuppressWarnings("unchecked")
  	public boolean send(Message<?> message) {
  		this.messages.add((Message<byte[]>) message);
  		return true;
  	}
  
  	@Override
  	@SuppressWarnings("unchecked")
  	public boolean send(Message<?> message, long timeout) {
  		this.messages.add((Message<byte[]>) message);
  		return true;
  	}
  
  	@Override
  	public boolean subscribe(MessageHandler handler) {
  		this.handlers.add(handler);
  		return true;
  	}
  
  	@Override
  	public boolean unsubscribe(MessageHandler handler) {
  		this.handlers.remove(handler);
  		return true;
  	}
  }