/**
* BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
* 
* Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 3.0 of the License, or (at your option) any later
* version.
* 
* BigBlueButton 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.
*
* You should have received a copy of the GNU Lesser General Public License along
* with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
*
*/
package org.bigbluebutton.voiceconf.sip;

public class AudioConferenceProvider {
	private final String host;
	private final int sipPort;
	private final int startAudioPort;
	private final int stopAudioPort;
	private int curAvailablePort;
	
	public AudioConferenceProvider(String host, int sipPort, int startAudioPort, int stopAudioPort) {
		this.host = host;
		this.sipPort = sipPort;
		this.startAudioPort = startAudioPort;
		this.stopAudioPort = stopAudioPort;
		curAvailablePort = startAudioPort;
	}
	
	public int getFreeAudioPort() {
    	synchronized(this) {
        	int availablePort = curAvailablePort;
        	curAvailablePort++;
    		if (curAvailablePort > stopAudioPort) curAvailablePort = startAudioPort;    
    		return availablePort;
    	}
    }
	
	public String getHost() {
		return host;
	}
	
	public int getStartAudioPort() {
		return startAudioPort;
	}
	
	public int getStopAudioPort() {
		return stopAudioPort;
	}
}