File	Doc	Category	Size	Date	Package
ClusterSessionListener.java	API Doc	Apache Tomcat 6.0.14	3981	Fri Jul 20 04:20:34 BST 2007	org.apache.catalina.ha.session

ClusterSessionListener

• java.lang.Object
  • ClusterListener

Fields Summary
protected static final String	info The descriptive information about this implementation.

Constructors Summary
public ClusterSessionListener() //--Constructor---------------------------------------------

Methods Summary
public boolean	accept(org.apache.catalina.ha.ClusterMessage msg) Accept only SessionMessage param msg ClusterMessage return boolean - returns true to indicate that messageReceived should be invoked. If false is returned, the messageReceived method will not be invoked. return (msg instanceof SessionMessage);
public java.lang.String	getInfo() Return descriptive information about this implementation. return (info);
public void	messageReceived(org.apache.catalina.ha.ClusterMessage myobj) Callback from the cluster, when a message is received, The cluster will broadcast it invoking the messageReceived on the receiver. param myobj ClusterMessage - the message received from the cluster if (myobj != null && myobj instanceof SessionMessage) { SessionMessage msg = (SessionMessage) myobj; String ctxname = msg.getContextName(); //check if the message is a EVT_GET_ALL_SESSIONS, //if so, wait until we are fully started up Map managers = cluster.getManagers() ; if (ctxname == null) { java.util.Iterator i = managers.keySet().iterator(); while (i.hasNext()) { String key = (String) i.next(); ClusterManager mgr = (ClusterManager) managers.get(key); if (mgr != null) mgr.messageDataReceived(msg); else { //this happens a lot before the system has started // up if (log.isDebugEnabled()) log.debug("Context manager doesn't exist:" + key); } } } else { ClusterManager mgr = (ClusterManager) managers.get(ctxname); if (mgr != null) mgr.messageDataReceived(msg); else if (log.isWarnEnabled()) log.warn("Context manager doesn't exist:" + ctxname); } } return;