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/*******************************************************************************
* Copyright (c) 2011, 2012 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:
* Mathieu Denis <mathieu.denis@polymtl.ca> - Initial implementation
*******************************************************************************/
package org.eclipse.linuxtools.tmf.ui.viewers.statistics;
import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
import org.eclipse.linuxtools.tmf.core.request.TmfDataRequest;
import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest;
import org.eclipse.linuxtools.tmf.ui.viewers.statistics.model.AbsTmfStatisticsTree;
/**
* Class for the TMF event requests specific to the statistics view.
*
* @version 2.0
* @since 2.0
*/
public class TmfStatisticsRequest extends TmfEventRequest {
/**
* Reference to the statistics viewer that sent the request.
*/
private final TmfStatisticsViewer fSender;
/**
* Reference to the statistics tree.
*/
private final AbsTmfStatisticsTree fStatisticsData;
/**
* Tells if the request is for the whole trace or for a smaller time range.
*/
private final boolean fGlobal;
/**
* Index of the last event retrieved.
*/
private long fLastEventIndex;
/**
* Constructor
*
* @param sender
* Sender of this request
* @param range
* The target time range
* @param index
* The starting index
* @param global
* Is this for a global statistics request (true), or a partial
* one (false)?
*/
public TmfStatisticsRequest(TmfStatisticsViewer sender, TmfTimeRange range, long index, boolean global) {
super(ITmfEvent.class, range, index, TmfDataRequest.ALL_DATA, sender.getPageSize(), ExecutionType.BACKGROUND);
fGlobal = global;
fSender = sender;
fStatisticsData = fSender.getStatisticData();
fLastEventIndex = index;
}
@Override
public void handleData(ITmfEvent data) {
++fLastEventIndex;
if (data != null) {
final String traceName = data.getTrace().getName();
if (fSender.isListeningTo(traceName)) {
super.handleData(data);
ITmfExtraEventInfo extraInfo = new ITmfExtraEventInfo() {
@Override
public String getTraceName() {
if (traceName == null) {
return Messages.TmfStatisticsView_UnknownTraceName;
}
return traceName;
}
};
if (fGlobal) {
fStatisticsData.registerEvent(data, extraInfo);
} else {
fStatisticsData.registerEventInTimeRange(data, extraInfo);
}
if (getNbRead() % fSender.getRefreshRate() == 0) {
fSender.refresh();
}
}
}
}
@Override
public void handleSuccess() {
super.handleSuccess();
handleFinish(true);
}
@Override
public void handleFailure() {
super.handleFailure();
handleFinish(false);
}
@Override
public void handleCancel() {
super.handleCancel();
handleFinish(false);
}
/**
* @return the index of the last event read in the experiment so far
*/
protected long getLastEventIndex() {
return fLastEventIndex;
}
/**
* Handles the end of the request whether it is successful or not.
*
* @param isSuccessful
* Tells if the request has finished successfully or not and
* calls the right method from the sender in each case.
*/
protected void handleFinish(boolean isSuccessful) {
if (isSuccessful) {
fSender.modelComplete(fGlobal);
} else {
fSender.modelIncomplete(fGlobal);
}
}
}
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