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package com.sun.appserv.management.helper;
import java.util.Map;
import java.io.Serializable;
import javax.management.NotificationListener;
import javax.management.Notification;
import javax.management.ListenerNotFoundException;
import com.sun.appserv.management.base.Util;
import com.sun.appserv.management.util.misc.TypeCast;
import com.sun.appserv.management.deploy.DeploymentStatus;
import com.sun.appserv.management.deploy.DeploymentMgr;
import static com.sun.appserv.management.deploy.DeploymentMgr.*;
import com.sun.appserv.management.deploy.DeploymentSupport;
import com.sun.appserv.management.deploy.DeploymentProgress;
/**
A NotificationListener designed to listen to the {@link DeploymentMgr}.
<p>
Note that Notifications are not guaranteed to be delivered in order.
Thus, it is theoretically possible for a DEPLOYMENT_COMPLETED_NOTIFICATION_TYPE
to be received before a DEPLOYMENT_STARTED_NOTIFICATION_TYPE.
<p>
A subclass may choose to override {@link #deploymentStarted},
{@link #deploymentProgress} and
@since AppServer 9.0
*/
public class DeployNotificationListener
implements NotificationListener
{
private final Object mDeployID;
private boolean mIsCompleted;
private DeploymentStatus mDeploymentStatus;
private DeploymentProgress mDeploymentProgress;
private final DeploymentMgr mDeploymentMgr;
public
DeployNotificationListener(
final DeploymentMgr deploymentMgr,
final Object deployID )
{
if ( deploymentMgr == null || deployID == null )
{
throw new IllegalArgumentException();
}
mIsCompleted = false;
mDeploymentStatus = null;
mDeploymentProgress = null;
mDeploymentMgr = deploymentMgr;
mDeployID = deployID;
mDeploymentMgr.addNotificationListener( this, null, null );
}
/**
@return the DeploymentMgr in use for deployment.
*/
public DeploymentMgr
getDeploymentMgr()
{
return mDeploymentMgr;
}
/**
@return the deployID this listener responds to
*/
public Object
getDeployID()
{
return mDeployID;
}
/**
Return true if deployment has finished.
*/
public boolean
isCompleted()
{
return( mIsCompleted );
}
/**
@return DeploymentStatus, may be null if not finished or abnormally terminated.
*/
public DeploymentStatus
getDeploymentStatus()
{
return( mDeploymentStatus );
}
/**
@return the latest DeploymentProgress, may be null
*/
public DeploymentProgress
getDeploymentProgress()
{
return( mDeploymentProgress );
}
/**
Callback for all Notifications occurring during deployment.
Note for public use.
*/
public synchronized void
handleNotification(
final Notification notif,
final Object handback)
{
try
{
realHandleNotification( notif, handback );
}
catch( Exception e )
{
e.printStackTrace();
}
}
/**
Deployment has finished. For convenience, the DeploymentStatus
has been extracted from the Notification.
*/
protected void
deploymentDone(
final Notification notif,
final DeploymentStatus status )
{
//SampleUtil.println( "Deployment completed for " + deployID + " with status: " +
//status.getStageStatus() );
mIsCompleted = true;
mDeploymentStatus = status;
}
/**
Deployment has been cancelled. There may or may not be a
DeploymentStatus.
*/
protected void
deploymentAborted(
final Notification notif,
final DeploymentStatus status )
{
mIsCompleted = true;
mDeploymentStatus = status;
}
/**
Deployment progress. For convenience, the DeploymentProgress
has been extracted from the Notification.
*/
protected void
deploymentProgress(
final Notification notif,
final DeploymentProgress status )
{
mDeploymentProgress = status;
}
/**
Deployment has begun. The Notification contains no additional
data.
*/
protected void
deploymentStarted( final Notification notif )
{
}
/**
Clean things up. This mainly means
removing this listener from the DeploymentMgr.
*/
public void
cleanup()
{
try
{
mDeploymentMgr.removeNotificationListener( this, null, null );
}
catch( ListenerNotFoundException e )
{
}
}
/**
Handle a received Notification.
*/
protected final void
realHandleNotification(
final Notification notif,
final Object handback)
{
final String type = notif.getType();
final Map<String,?> m = TypeCast.asMap( notif.getUserData() );
final Object deployID = m.get( DeploymentMgr.NOTIF_DEPLOYMENT_ID_KEY );
if ( deployID.equals( mDeployID ) )
{
if ( type.equals( DeploymentMgr.DEPLOYMENT_STARTED_NOTIFICATION_TYPE ) )
{
deploymentStarted( notif );
}
else if ( type.equals( DeploymentMgr.DEPLOYMENT_ABORTED_NOTIFICATION_TYPE ) )
{
try
{
deploymentAborted( notif, null );
}
finally
{
cleanup();
}
}
else if ( type.equals( DeploymentMgr.DEPLOYMENT_COMPLETED_NOTIFICATION_TYPE ) )
{
final Map<String,Serializable> statusData = (Map<String,Serializable>)
Util.getAMXNotificationValue( notif, NOTIF_DEPLOYMENT_COMPLETED_STATUS_KEY );
final DeploymentStatus status =
DeploymentSupport.mapToDeploymentStatus( statusData );
try
{
deploymentDone( notif, status );
}
finally
{
cleanup();
}
}
else if ( type.equals( DeploymentMgr.DEPLOYMENT_PROGRESS_NOTIFICATION_TYPE ) )
{
final Map<String,Serializable> statusData = (Map<String,Serializable>)
Util.getAMXNotificationValue( notif, NOTIF_DEPLOYMENT_PROGRESS_KEY );
final DeploymentProgress progress =
DeploymentSupport.mapToDeploymentProgress( statusData );
deploymentProgress( notif, progress );
}
}
}
}
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