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/*******************************************************************************
* Copyright (c) 2013 Kalray
*
* 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:
* Xavier Raynaud - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.tmf.ui.commands;
import java.io.IOException;
import java.io.Writer;
import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
import org.eclipse.linuxtools.tmf.core.event.ITmfEventField;
import org.eclipse.linuxtools.tmf.core.filter.ITmfFilter;
import org.eclipse.linuxtools.tmf.core.request.ITmfEventRequest;
import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest;
import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange;
import org.eclipse.linuxtools.tmf.ui.viewers.events.TmfEventsTable;
/**
* This TMF Requests exports traces to text files.
* @author Xavier Raynaud <xavier.raynaud@kalray.eu>
*/
public class ExportToTextRequest extends TmfEventRequest {
private final Writer fWriter;
private final ITmfFilter fFilter;
private final TmfEventsTable fTable;
private IOException fIOException;
/**
* Constructor
* @param w
* a Writer, typically a FileWriter.
* @param filter
* a TmfFilter, if we want to filter some events. May be <code>null</code>.
* @param table
* the {@link TmfEventsTable} requesting the export (may be <code>null</code>)
*/
public ExportToTextRequest(Writer w, ITmfFilter filter, TmfEventsTable table) {
super(ITmfEvent.class, TmfTimeRange.ETERNITY, 0, ITmfEventRequest.ALL_DATA, ExecutionType.FOREGROUND);
this.fWriter = w;
this.fFilter = filter;
this.fTable = table;
}
/**
* Gets the IOException thrown by this export request, if any.
* @return the fIoException
*/
public IOException getIOException() {
return fIOException;
}
@Override
public void handleData(final ITmfEvent event) {
super.handleData(event);
if (isCancelled()) {
return;
}
try {
if (fFilter == null || fFilter.matches(event)) {
if (fTable != null) {
String[] entries = fTable.getItemStrings(event);
boolean needTab = false;
for (String entry : entries) {
if (needTab) {
fWriter.write('\t');
}
printValue(entry);
needTab = true;
}
} else { // fallback to default formatting
fWriter.write(event.getTimestamp().toString());
fWriter.write('\t');
fWriter.write(event.getSource());
fWriter.write('\t');
fWriter.write(event.getType().getName());
fWriter.write('\t');
fWriter.write(event.getReference());
fWriter.write('\t');
ITmfEventField content = event.getContent();
printValue(content.getValue());
}
fWriter.write('\n');
}
} catch (IOException ex) {
fIOException = ex;
fail();
}
}
private void printValue(Object value) throws IOException {
if (value != null) {
fWriter.write(value.toString());
}
}
}
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