/*
* Copyright (c) 2004, 2006, 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.
*/
package sun.tools.jconsole;
import java.awt.*;
import javax.swing.*;
public abstract class Tab extends JPanel {
private String name;
private Worker worker;
protected VMPanel vmPanel;
private SwingWorker<?, ?> prevSW;
public Tab(VMPanel vmPanel, String name) {
this.vmPanel = vmPanel;
this.name = name;
}
public SwingWorker<?, ?> newSwingWorker() {
return null;
}
public void update() {
final ProxyClient proxyClient = vmPanel.getProxyClient();
if (!proxyClient.hasPlatformMXBeans()) {
throw new UnsupportedOperationException(
"Platform MXBeans not registered in MBeanServer");
}
SwingWorker<?,?> sw = newSwingWorker();
// schedule SwingWorker to run only if the previous
// SwingWorker has finished its task and it hasn't started.
if (prevSW == null || prevSW.isDone()) {
if (sw == null || sw.getState() == SwingWorker.StateValue.PENDING) {
prevSW = sw;
if (sw != null) {
sw.execute();
}
}
}
}
public synchronized void dispose() {
if(worker != null)
worker.stopWorker();
// Subclasses will override to clean up
}
protected VMPanel getVMPanel() {
return vmPanel;
}
OverviewPanel[] getOverviewPanels() {
return null;
}
public synchronized void workerAdd(Runnable job) {
if (worker == null) {
worker = new Worker(name+"-"+vmPanel.getConnectionName());
worker.start();
}
worker.add(job);
}
public Dimension getPreferredSize() {
return new Dimension(700, 500);
}
}