ConsumerAdapter.java revision fb3fb4f3d76d55b64440afd0af72775dfad3bd1d
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
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*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* ident "%Z%%M% %I% %E% SMI"
*/
package org.opensolaris.os.dtrace;
/**
* An abstract adapter class for getting events from a {@link Consumer}.
* The methods in this class are empty except for a few that implement
* the default behavior of terminating a consumer by throwing an
* exception. This class exists as a convenience for implementing
* consumer listeners.
*
* @see Consumer#addConsumerListener(ConsumerListener l)
*
* @author Tom Erickson
*/
public abstract class ConsumerAdapter implements ConsumerListener {
/** Empty method */
public void dataReceived(DataEvent e) throws ConsumerException {}
/**
* Terminates a running {@link Consumer} by throwing an exception.
*
* @throws ConsumerException
*/
public void
dataDropped(DropEvent e) throws ConsumerException
{
Drop drop = e.getDrop();
throw new ConsumerException(drop.getDefaultMessage(), drop);
}
/**
* Terminates a running {@link Consumer} by throwing an exception.
*
* @throws ConsumerException
*/
public void
errorEncountered(ErrorEvent e) throws ConsumerException
{
Error error = e.getError();
throw new ConsumerException(error.getDefaultMessage(), error);
}
/** Empty method */
public void processStateChanged(ProcessEvent e) throws ConsumerException {}
/** Empty method */
public void consumerStarted(ConsumerEvent e) {}
/** Empty method */
public void consumerStopped(ConsumerEvent e) {}
/** Empty method */
public void intervalBegan(ConsumerEvent e) {}
/** Empty method */
public void intervalEnded(ConsumerEvent e) {}
}