/*******************************************************************************
* Copyright (c) 2006 IBM Corporation.
* 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:
* IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse
*******************************************************************************/
package org.eclipse.linuxtools.systemtap.graphing.core.structures;
import org.eclipse.linuxtools.systemtap.graphing.core.datasets.IDataEntry;
import org.eclipse.linuxtools.systemtap.graphing.core.datasets.IDataSet;
import org.eclipse.linuxtools.systemtap.graphing.core.datasets.IDataSetParser;
import org.eclipse.linuxtools.systemtap.structures.listeners.IGobblerListener;
public class ChartStreamDaemon implements IGobblerListener {
public ChartStreamDaemon(IDataSet d, IDataSetParser p) {
data = d;
outputData = new StringBuilder(""); //$NON-NLS-1$
parser = p;
disposed = false;
}
/**
* Takes one line from the output data and appends it to data object.
*/
private void pushData() {
if(null == data || null == parser)
return;
IDataEntry e = parser.parse(outputData);
if(null != e)
data.setData(e);
}
@Override
public void handleDataEvent(String line) {
outputData.append(line);
this.pushData();
}
public boolean isDisposed() {
return disposed;
}
public void dispose() {
if(!disposed) {
disposed = true;
data = null;
if(null != outputData)
outputData.delete(0, outputData.length());
outputData = null;
parser = null;
}
}
private IDataSet data;
private StringBuilder outputData;
private IDataSetParser parser;
private boolean disposed;
}