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/*
* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
package com.sun.tools.example.debug.gui;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import com.sun.jdi.*;
import com.sun.tools.example.debug.bdi.*;
import com.sun.tools.example.debug.expr.ExpressionParser;
import com.sun.tools.example.debug.expr.ParseException;
public class MonitorTool extends JPanel {
private static final long serialVersionUID = -645235951031726647L;
private ExecutionManager runtime;
private ContextManager context;
private JList list;
public MonitorTool(Environment env) {
super(new BorderLayout());
this.runtime = env.getExecutionManager();
this.context = env.getContextManager();
list = new JList(env.getMonitorListModel());
list.setCellRenderer(new MonitorRenderer());
JScrollPane listView = new JScrollPane(list);
add(listView);
// Create listener.
MonitorToolListener listener = new MonitorToolListener();
list.addListSelectionListener(listener);
//### remove listeners on exit!
}
private class MonitorToolListener implements ListSelectionListener {
@Override
public void valueChanged(ListSelectionEvent e) {
int index = list.getSelectedIndex();
if (index != -1) {
}
}
}
private Value evaluate(String expr) throws ParseException,
InvocationException,
InvalidTypeException,
ClassNotLoadedException,
IncompatibleThreadStateException {
ExpressionParser.GetFrame frameGetter =
new ExpressionParser.GetFrame() {
@Override
public StackFrame get()
throws IncompatibleThreadStateException
{
try {
return context.getCurrentFrame();
} catch (VMNotInterruptedException exc) {
throw new IncompatibleThreadStateException();
}
}
};
return ExpressionParser.evaluate(expr, runtime.vm(), frameGetter);
}
private class MonitorRenderer extends DefaultListCellRenderer {
@Override
public Component getListCellRendererComponent(JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {
//### We should indicate the current thread independently of the
//### selection, e.g., with an icon, because the user may change
//### the selection graphically without affecting the current
//### thread.
super.getListCellRendererComponent(list, value, index,
isSelected, cellHasFocus);
if (value == null) {
this.setText("<unavailable>");
} else {
String expr = (String)value;
try {
Value result = evaluate(expr);
this.setText(expr + " = " + result);
} catch (ParseException exc) {
this.setText(expr + " ? " + exc.getMessage());
} catch (IncompatibleThreadStateException exc) {
this.setText(expr + " ...");
} catch (Exception exc) {
this.setText(expr + " ? " + exc);
}
}
return this;
}
}
}
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