/*
* ObjectRecorder2Trace2DAdpater, an adapter which enables drawing timestamped
* values inspected by the ObjectRecorder on a Chart2D.
* Copyright (c) 2004 - 2011 Achim Westermann, Achim.Westermann@gmx.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* If you modify or optimize the code in a useful way please let me know.
* Achim.Westermann@gmx.de
*/
package info.monitorenter.reflection;
import info.monitorenter.gui.chart.ITrace2D;
import info.monitorenter.util.TimeStampedValue;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
/**
* A simple adapter that allows displaying of timestamped values from an
* inspection of the
* <code>{@link info.monitorenter.reflection.ObjectRecorder}</code> on a
* Chart2D.
* <p>
*
* @author <a href='mailto:Achim.Westermann@gmx.de'>Achim Westermann </a>
*
* @version $Revision: 1.7 $
*/
public class ObjRecorder2Trace2DAdapter implements ChangeListener {
/** The field name to inspect. */
private final String m_fieldname;
/** The source inspector to connect to the trace. */
private final ObjectRecorder m_inspector;
/**
* The starting timestamp of this inspection that is used to put the timestamp
* into relation to the first inspection.
*/
private final long m_start = System.currentTimeMillis();
/** The target trace to use. */
private final ITrace2D m_view;
/**
* Creates a bridge from the given field of the given instance to inspect to
* the trace.
* <p>
*
* @param view
* the target trace that will show the inspected value.
*
* @param toinspect
* the instance to inpsect.
*
* @param fieldname
* the field on the instance to inspect.
*
* @param interval
* the interval of inspections in ms.
*/
public ObjRecorder2Trace2DAdapter(final ITrace2D view, final Object toinspect,
final String fieldname, final long interval) {
this.m_view = view;
this.m_fieldname = fieldname;
this.m_inspector = new ObjectRecorder(toinspect, interval);
this.m_inspector.addChangeListener(this);
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (this.getClass() != obj.getClass()) {
return false;
}
final ObjRecorder2Trace2DAdapter other = (ObjRecorder2Trace2DAdapter) obj;
if (this.m_fieldname == null) {
if (other.m_fieldname != null) {
return false;
}
} else if (!this.m_fieldname.equals(other.m_fieldname)) {
return false;
}
if (this.m_inspector == null) {
if (other.m_inspector != null) {
return false;
}
} else if (!this.m_inspector.equals(other.m_inspector)) {
return false;
}
if (this.m_start != other.m_start) {
return false;
}
if (this.m_view == null) {
if (other.m_view != null) {
return false;
}
} else if (!this.m_view.equals(other.m_view)) {
return false;
}
return true;
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((this.m_fieldname == null) ? 0 : this.m_fieldname.hashCode());
result = prime * result + ((this.m_inspector == null) ? 0 : this.m_inspector.hashCode());
result = prime * result + (int) (this.m_start ^ (this.m_start >>> 32));
result = prime * result + ((this.m_view == null) ? 0 : this.m_view.hashCode());
return result;
}
/**
* Sets the interval for inspections in ms.
* <p>
*
* @param interval
* the interval for inspections in ms.
*/
public void setInterval(final long interval) {
this.m_inspector.setInterval(interval);
}
/**
* @see javax.swing.event.ChangeListener#stateChanged(javax.swing.event.ChangeEvent)
*/
public void stateChanged(final ChangeEvent e) {
TimeStampedValue last;
try {
last = this.m_inspector.getLastValue(this.m_fieldname);
} catch (final Exception f) {
f.printStackTrace();
return;
}
if (last != null) {
double tmpx;
double tmpy;
tmpx = last.getTime() - this.m_start;
tmpy = Double.parseDouble(last.getValue().toString());
this.m_view.addPoint(tmpx, tmpy);
}
}
}