RoomManager.java

/*
 * (C) Copyright 2014 Kurento (http://kurento.org/)
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 */
package com.kurento.kmf.demo.group;

import static com.google.common.base.Strings.isNullOrEmpty;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import com.kurento.kmf.media.factory.MediaPipelineFactory;

/**
 * @author Ivan Gracia (izanmail@gmail.com)
 *
 */
public class RoomManager {

	private final Logger log = LoggerFactory.getLogger(RoomManager.class);

	@Autowired
	private MediaPipelineFactory mpf;

	private final ConcurrentMap<String, Room> rooms = new ConcurrentHashMap<>();

	/**
	 * @param roomName
	 *            the name of the room
	 * @return the room if it was already created, or a new one if it is the
	 *         first time this room is accessed
	 */
	public Room getRoom(String roomName) {
		Room room;
		if (isNullOrEmpty(roomName)) {
			throw new IllegalArgumentException("Room name cannot be empty");
		}

		log.debug("Searching for room {}", roomName);
		room = rooms.get(roomName);

		if (room == null) {
			log.debug("Room {} not existent. Will create now!", roomName);
			room = new Room(roomName, mpf.create());
			rooms.put(roomName, room);
		}

		return room;
	}

}