95 lines
2.9 KiB
Java
95 lines
2.9 KiB
Java
/*
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* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.tools.jconsole;
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import java.awt.*;
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import javax.swing.*;
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public abstract class Tab extends JPanel {
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private String name;
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private Worker worker;
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protected VMPanel vmPanel;
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private SwingWorker<?, ?> prevSW;
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public Tab(VMPanel vmPanel, String name) {
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this.vmPanel = vmPanel;
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this.name = name;
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}
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public SwingWorker<?, ?> newSwingWorker() {
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return null;
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}
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public void update() {
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final ProxyClient proxyClient = vmPanel.getProxyClient();
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if (!proxyClient.hasPlatformMXBeans()) {
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throw new UnsupportedOperationException(
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"Platform MXBeans not registered in MBeanServer");
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}
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SwingWorker<?,?> sw = newSwingWorker();
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// schedule SwingWorker to run only if the previous
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// SwingWorker has finished its task and it hasn't started.
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if (prevSW == null || prevSW.isDone()) {
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if (sw == null || sw.getState() == SwingWorker.StateValue.PENDING) {
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prevSW = sw;
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if (sw != null) {
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sw.execute();
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}
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}
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}
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}
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public synchronized void dispose() {
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if(worker != null)
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worker.stopWorker();
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// Subclasses will override to clean up
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}
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protected VMPanel getVMPanel() {
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return vmPanel;
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}
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OverviewPanel[] getOverviewPanels() {
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return null;
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}
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public synchronized void workerAdd(Runnable job) {
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if (worker == null) {
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worker = new Worker(name+"-"+vmPanel.getConnectionName());
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worker.start();
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}
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worker.add(job);
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}
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public Dimension getPreferredSize() {
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return new Dimension(700, 500);
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}
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}
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