messagedirector.java

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/*
 * Copyright 2007 the original author or jdon.com
 *
 * 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 com.jdon.jivejdon.repository.builder;

import org.apache.log4j.Logger;

import com.jdon.jivejdon.model.Forum;
import com.jdon.jivejdon.model.ForumMessage;
import com.jdon.jivejdon.model.ForumThread;

public class MessageDirector {
	private final static Logger logger = Logger.getLogger(MessageDirector.class);

	private final MessageBuilder messageBuilder;

	private final ForumAbstractFactory forumAbstractFactory;

	public MessageDirector(ForumAbstractFactory forumAbstractFactory, MessageBuilder messageBuilder) {
		super();
		this.forumAbstractFactory = forumAbstractFactory;
		this.messageBuilder = messageBuilder;
	}

	public ForumMessage getMessageWithPropterty(Long messageId) {
		return getMessage(messageId);
	}

	public ForumMessage getMessage(Long messageId) {
		try {
			return getMessage(messageId, null, null);
		} catch (Exception e) {
			return null;
		}
	}

	/*
	 * return a full ForumMessage need solve the relations with Forum ForumThread parentMessage
	 */
	public ForumMessage getMessage(Long messageId, final ForumThread forumThread, final Forum forum) throws Exception {
		logger.debug(" enter get a full Message for id=" + messageId);
		final ForumMessage forumMessage = (ForumMessage) messageBuilder.create(messageId);
		if (forumMessage == null) {
			logger.error("no this message in database id=" + messageId);
			return null;
		}
		if (forumMessage.isEmbedded())
			return forumMessage;

		//http://www.javalobby.org/forums/thread.jspa?messageID=91836328
		construct(forumMessage, forumThread, forum);
		forumMessage.setEmbedded(true);
		return forumMessage;
	}

	private void construct(ForumMessage forumMessage, ForumThread forumThread, Forum forum) throws Exception {
		try {
			messageBuilder.buildProperties(forumMessage);
			messageBuilder.buildPart(forumMessage, forumThread, forum);
		} catch (Exception e) {
			String error = e + " construct forumMessageId=" + forumMessage.getMessageId();
			logger.error(error);
			throw new Exception(error);
		}
	}

	

}