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package com.sun.enterprise.management;
import java.util.Set;
import javax.management.ObjectName;
import com.sun.appserv.management.DomainRoot;
import com.sun.appserv.management.base.Util;
import com.sun.appserv.management.client.ConnectionSource;
/**
Observes various things as tests are run.
*/
public final class Observer
{
private static Observer INSTANCE = null;
private final RegistrationListener mListener;
private final DomainRoot mDomainRoot;
private
Observer( final DomainRoot domainRoot )
{
mDomainRoot = domainRoot;
final ConnectionSource connSource =
Util.getExtra(domainRoot).getConnectionSource();
try
{
mListener = RegistrationListener.createInstance( "Observer",
connSource.getExistingMBeanServerConnection() );
}
catch ( Exception e )
{
throw new RuntimeException( e );
}
}
public static synchronized Observer
create( final DomainRoot domainRoot )
{
if ( INSTANCE == null )
{
INSTANCE = new Observer( domainRoot );
}
else
{
throw new IllegalArgumentException();
}
return INSTANCE;
}
public static Observer
getInstance()
{
return INSTANCE;
}
public RegistrationListener
getRegistrationListener()
{
return mListener;
}
public Set<ObjectName>
getCurrentlyRegisteredAMX()
{
return mListener.getCurrentlyRegistered();
}
public void
notifsLost()
{
mListener.notifsLost();
}
}