import javax.media.rtp.Participant; //导入依赖的package包/类
public void update( RemoteEvent event) {	
String timestamp= getTimestamp();       

if( event instanceof ReceiverReportEvent) {
    ReceiverReport rr= ((ReceiverReportEvent) event).getReport();

    StringBuffer sb= new StringBuffer();

    sb.append( timestamp + " RR");

    if( rr != null) {
	Participant participant= rr.getParticipant();

	if( participant != null) {
	    sb.append( " from " + participant.getCNAME());
	    sb.append( " ssrc=" + rr.getSSRC());
	} else {
	    sb.append( " ssrc=" + rr.getSSRC());
	}

	tx.rtcpReport( sb.toString());
    }	    	    
} else {
    System.out.println( "RemoteEvent: " + event);
}
   }
 

import javax.media.rtp.Participant; //导入依赖的package包/类
/**
    * SessionListener.
    */
   public synchronized void update(SessionEvent evt) {
if (evt instanceof NewParticipantEvent) {
    Participant p = ((NewParticipantEvent)evt).getParticipant();
    System.err.println("  - A new participant had just joined: " + p.getCNAME());
}
   }
 

import javax.media.rtp.Participant; //导入依赖的package包/类
/**
 * JingleSessionListener.
 */
public synchronized void update(SessionEvent evt) {
    if (evt instanceof NewParticipantEvent) {
        Participant p = ((NewParticipantEvent) evt).getParticipant();
        LOGGER.fine("  - A new participant had just joined: " + p.getCNAME());
    }
}
 

import javax.media.rtp.Participant; //导入依赖的package包/类
/**
 * JingleSessionListener.
 */
public synchronized void update(SessionEvent evt) {
    if (evt instanceof NewParticipantEvent) {
        Participant p = ((NewParticipantEvent) evt).getParticipant();
        LOGGER.error("  - A new participant had just joined: " + p.getCNAME());
    }
}
 

import javax.media.rtp.Participant; //导入依赖的package包/类
/**
 * JingleSessionListener.
 */
public synchronized void update(SessionEvent evt) {
    if (evt instanceof NewParticipantEvent) {
        Participant p = ((NewParticipantEvent) evt).getParticipant();
        System.err.println("  - A new participant had just joined: " + p.getCNAME());
    }
}