1 /*
2 * Copyright (c) 2004, 2006, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.tools.jconsole;
27
28 import java.awt.BorderLayout;
29 import java.awt.event.MouseAdapter;
30 import java.awt.event.MouseEvent;
31 import java.awt.event.MouseListener;
32 import java.beans.*;
33 import java.io.*;
34 import java.util.Set;
35 import javax.management.*;
36 import javax.swing.*;
37 import javax.swing.event.*;
38 import javax.swing.tree.*;
39 import sun.tools.jconsole.inspector.*;
40
41 import com.sun.tools.jconsole.JConsoleContext;
42
43 @SuppressWarnings("serial")
44 public class MBeansTab extends Tab implements
45 NotificationListener, PropertyChangeListener, TreeSelectionListener {
46
47 private XTree tree;
48 private XSheet sheet;
49 private XDataViewer viewer;
50
51 public static String getTabName() {
52 return Messages.MBEANS;
53 }
54
55 public MBeansTab(final VMPanel vmPanel) {
56 super(vmPanel, getTabName());
57 addPropertyChangeListener(this);
58 setupTab();
59 }
60
61 public XDataViewer getDataViewer() {
62 return viewer;
63 }
64
65 public XTree getTree() {
66 return tree;
67 }
68
69 public XSheet getSheet() {
70 return sheet;
71 }
72
73 public void dispose() {
74 super.dispose();
75 sheet.dispose();
76 }
77
78 public int getUpdateInterval() {
79 return vmPanel.getUpdateInterval();
80 }
81
82 void synchroniseMBeanServerView() {
83 // Register listener for MBean registration/unregistration
84 //
85 try {
86 getMBeanServerConnection().addNotificationListener(
87 MBeanServerDelegate.DELEGATE_NAME,
88 this,
89 null,
90 null);
91 } catch (InstanceNotFoundException e) {
92 // Should never happen because the MBeanServerDelegate
93 // is always present in any standard MBeanServer
94 //
95 if (JConsole.isDebug()) {
96 e.printStackTrace();
97 }
98 } catch (IOException e) {
99 if (JConsole.isDebug()) {
100 e.printStackTrace();
101 }
102 vmPanel.getProxyClient().markAsDead();
103 return;
104 }
105 // Retrieve MBeans from MBeanServer
106 //
107 Set<ObjectName> newSet = null;
108 try {
109 newSet = getMBeanServerConnection().queryNames(null,null);
110 } catch (IOException e) {
111 if (JConsole.isDebug()) {
112 e.printStackTrace();
113 }
114 vmPanel.getProxyClient().markAsDead();
115 return;
116 }
117 // Cleanup current tree
118 //
119 tree.removeAll();
120 // Do not display anything until the new tree has been built
121 //
122 tree.setVisible(false);
123 // Add MBeans to tree
124 //
125 for (ObjectName mbean : newSet) {
126 tree.addMBeanToView(mbean);
127 }
128 // Display the new tree
129 //
130 tree.setVisible(true);
131 }
132
133 public MBeanServerConnection getMBeanServerConnection() {
134 return vmPanel.getProxyClient().getMBeanServerConnection();
135 }
136
137 public void update() {
138 // Ping the connection to see if it is still alive. At
139 // some point the ProxyClient class should centralize
140 // the connection aliveness monitoring and no longer
141 // rely on the custom tabs to ping the connections.
142 //
143 try {
144 getMBeanServerConnection().getDefaultDomain();
145 } catch (IOException ex) {
146 vmPanel.getProxyClient().markAsDead();
147 }
148 }
149
150 private void setupTab() {
151 // set up the split pane with the MBean tree and MBean sheet panels
152 setLayout(new BorderLayout());
153 JSplitPane mainSplit = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
154 mainSplit.setDividerLocation(160);
155 mainSplit.setBorder(BorderFactory.createEmptyBorder());
156
157 // set up the MBean tree panel (left pane)
158 tree = new XTree(this);
159 tree.setCellRenderer(new XTreeRenderer());
160 tree.getSelectionModel().setSelectionMode(
161 TreeSelectionModel.SINGLE_TREE_SELECTION);
162 tree.addTreeSelectionListener(this);
163 tree.addMouseListener(ml);
164 JScrollPane theScrollPane = new JScrollPane(
165 tree,
166 JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
167 JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
168 JPanel treePanel = new JPanel(new BorderLayout());
169 treePanel.add(theScrollPane, BorderLayout.CENTER);
170 mainSplit.add(treePanel, JSplitPane.LEFT, 0);
171
172 // set up the MBean sheet panel (right pane)
173 viewer = new XDataViewer(this);
174 sheet = new XSheet(this);
175 mainSplit.add(sheet, JSplitPane.RIGHT, 0);
176
177 add(mainSplit);
178 }
179
180 /* notification listener */
181 public void handleNotification(Notification notification, Object handback) {
182 if (notification instanceof MBeanServerNotification) {
183 ObjectName mbean =
184 ((MBeanServerNotification) notification).getMBeanName();
185 if (notification.getType().equals(
186 MBeanServerNotification.REGISTRATION_NOTIFICATION)) {
187 tree.addMBeanToView(mbean);
188 } else if (notification.getType().equals(
189 MBeanServerNotification.UNREGISTRATION_NOTIFICATION)) {
190 tree.delMBeanFromView(mbean);
191 }
192 }
193 }
194
195 /* property change listener */
196 public void propertyChange(PropertyChangeEvent evt) {
197 if (evt.getPropertyName() == JConsoleContext.CONNECTION_STATE_PROPERTY) {
198 boolean connected = (Boolean) evt.getNewValue();
199 if (connected) {
200 workerAdd(new Runnable() {
201 public void run() {
202 synchroniseMBeanServerView();
203 }
204 });
205 } else {
206 sheet.dispose();
207 }
208 }
209
210 }
211
212 /* tree selection listener */
213 public void valueChanged(TreeSelectionEvent e) {
214 DefaultMutableTreeNode node =
215 (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
216 sheet.displayNode(node);
217 }
218
219 /* tree mouse listener */
220 private MouseListener ml = new MouseAdapter() {
221 public void mousePressed(MouseEvent e) {
222 if (e.getClickCount() == 1) {
223 int selRow = tree.getRowForLocation(e.getX(), e.getY());
224 if (selRow != -1) {
225 TreePath selPath =
226 tree.getPathForLocation(e.getX(), e.getY());
227 DefaultMutableTreeNode node = (DefaultMutableTreeNode)
228 selPath.getLastPathComponent();
229 if (sheet.isMBeanNode(node)) {
230 tree.expandPath(selPath);
231 }
232 }
233 }
234 }
235 };
236 }