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/*******************************************************************************
* Copyright (c) 2011 Ericsson
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Bernd Hufmann - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.lttng.ui.views.latency.model;
import org.eclipse.linuxtools.lttng.core.LttngConstants;
import org.eclipse.linuxtools.lttng.core.event.LttngEvent;
import org.eclipse.linuxtools.lttng.core.latency.analyzer.EventMatcher;
import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest;
import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest;
/**
* <b><u>LatencyEventRequest</u></b>
* <p>
*/
public class LatencyEventRequest extends TmfEventRequest<LttngEvent> {
// ------------------------------------------------------------------------
// Attributes
// ------------------------------------------------------------------------
final private LatencyController fController;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
public LatencyEventRequest(LatencyController controller, TmfTimeRange range, int rank, int nbEvents, ITmfDataRequest.ExecutionType execType) {
super(LttngEvent.class, range, rank, nbEvents, LttngConstants.DEFAULT_BLOCK_SIZE, execType);
fController = controller;
EventMatcher.getInstance().clearStack();
}
public LatencyEventRequest(LatencyController controller, TmfTimeRange range, ITmfDataRequest.ExecutionType execType) {
this(controller, range, 0, ALL_DATA, execType);
}
public LatencyEventRequest(LatencyController controller, TmfTimeRange range, int rank, ITmfDataRequest.ExecutionType execType) {
this(controller, range, rank, ALL_DATA, execType);
}
// ------------------------------------------------------------------------
// Operations
// ------------------------------------------------------------------------
/*
* (non-Javadoc)
* @see org.eclipse.linuxtools.tmf.request.TmfDataRequest#handleData(org.eclipse.linuxtools.tmf.event.TmfData)
*/
@Override
public void handleData(LttngEvent event) {
super.handleData(event);
LttngEvent startEvent = EventMatcher.getInstance().process(event);
if (startEvent != null) {
long latency = event.getTimestamp().getValue() - startEvent.getTimestamp().getValue();
fController.handleData(getNbRead(), startEvent.getTimestamp().getValue(), latency);
}
}
/*
* (non-Javadoc)
* @see org.eclipse.linuxtools.tmf.request.TmfDataRequest#handleCompleted()
*/
@Override
public void handleCompleted() {
fController.handleCompleted();
super.handleCompleted();
}
/*
* (non-Javadoc)
* @see org.eclipse.linuxtools.tmf.request.TmfDataRequest#handleCancel()
*/
@Override
public void handleCancel() {
EventMatcher.getInstance().clearStack();
fController.handleCancel();
super.handleCancel();
}
}
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