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comparison agent/src/share/classes/sun/jvm/hotspot/ui/ProcessListPanel.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2001 Sun Microsystems, Inc. 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.ui;
26
27 import java.awt.*;
28 import java.awt.event.*;
29 import java.util.*;
30 import javax.swing.*;
31 import javax.swing.event.*;
32 import javax.swing.table.*;
33
34 import sun.jvm.hotspot.debugger.*;
35
36 public class ProcessListPanel extends JPanel {
37 private Debugger dbg;
38 private AbstractTableModel dataModel;
39 private java.util.List els;
40 private boolean sortByName = true;
41 private boolean sortReversed = false;
42 private javax.swing.Timer timer;
43 private JTable table;
44
45 /** Takes a Debugger in constructor. Updates the list once during
46 construction; list can be updated automatically by "starting"
47 the panel. */
48 public ProcessListPanel(Debugger dbg) {
49 super();
50
51 this.dbg = dbg;
52
53 update();
54
55 dataModel = new AbstractTableModel() {
56 public int getColumnCount() { return 2; }
57 public int getRowCount() { return els.size(); }
58 public String getColumnName(int col) {
59 switch (col) {
60 case 0:
61 return "Process Name";
62 case 1:
63 return "Process ID";
64 default:
65 throw new RuntimeException("Index " + col + " out of bounds");
66 }
67 }
68
69 public Object getValueAt(int row, int col) {
70 ProcessInfo info = (ProcessInfo) els.get(row);
71
72 switch (col) {
73 case 0:
74 return info.getName();
75 case 1:
76 return new Integer(info.getPid());
77 default:
78 throw new RuntimeException("Index (" + col + ", " + row + ") out of bounds");
79 }
80 }
81 };
82
83 // Create user interface
84 setLayout(new BorderLayout());
85 table = new JTable(dataModel);
86 table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
87 JTableHeader header = table.getTableHeader();
88 header.setReorderingAllowed(false);
89 table.setRowSelectionAllowed(true);
90 table.setColumnSelectionAllowed(false);
91 // Provide sorting in similar fashion to Task Manager
92 header.addMouseListener(new MouseAdapter() {
93 public void mousePressed(MouseEvent e) {
94 int viewColumn = table.getColumnModel().getColumnIndexAtX(e.getX());
95 int column = table.convertColumnIndexToModel(viewColumn);
96 if (column != -1) {
97 boolean newSortByName = (column == 0);
98 if (newSortByName == sortByName) {
99 // Switch sense of "reversed" instead
100 sortReversed = !sortReversed;
101 } else {
102 sortByName = newSortByName;
103 sortReversed = false;
104 }
105
106 // Keep the current selection if possible
107 int i = table.getSelectedRow();
108 int pid = getPid(els, i);
109 sort(els);
110 i = findPid(els, pid);
111 dataModel.fireTableDataChanged();
112 if ((i >= 0) || (els.size() > 0)) {
113 if (i >= 0) {
114 table.setRowSelectionInterval(i, i);
115 } else {
116 table.setRowSelectionInterval(0, 0);
117 }
118 }
119 }
120 }
121 });
122
123 JScrollPane scrollPane = new JScrollPane(table);
124 add(scrollPane, BorderLayout.CENTER);
125
126 if (els.size() > 0) {
127 table.setRowSelectionInterval(0, 0);
128 }
129 }
130
131 /** Set update interval for automatic updating of the process list */
132
133 public void setAutoUpdateInterval(int millis) {
134 getTimer().setDelay(millis);
135 }
136
137 /** Start auto updating of the panel */
138 public void start() {
139 getTimer().start();
140 }
141
142 /** Stop auto updating of the panel */
143 public void stop() {
144 getTimer().stop();
145 }
146
147 /** Call this to update the panel's notion of the process list */
148 public synchronized void update() {
149 if (!dbg.hasProcessList()) {
150 throw new RuntimeException("ProcessListPanel requires that debugger supports getProcessList()");
151 }
152 java.util.List newEls = dbg.getProcessList();
153 sort(newEls);
154 if (table != null) {
155 // Keep the current selection if possible
156 int i = table.getSelectedRow();
157 int pid = getPid(els, i);
158 i = findPid(newEls, pid);
159 els = newEls;
160 dataModel.fireTableDataChanged();
161 if ((i >= 0) || (els.size() > 0)) {
162 if (i >= 0) {
163 table.setRowSelectionInterval(i, i);
164 } else {
165 table.setRowSelectionInterval(0, 0);
166 }
167 }
168 } else {
169 els = newEls;
170 }
171 }
172
173 /** Call this to get the selected ProcessInfo, or null if none selected */
174 public synchronized ProcessInfo getSelectedProcess() {
175 int i = table.getSelectedRow();
176 if (i < 0) {
177 return null;
178 }
179 return (ProcessInfo) els.get(i);
180 }
181
182 private synchronized void sort(java.util.List els) {
183 Comparator c;
184 if (sortByName) {
185 c = new Comparator() {
186 public int compare(Object o1, Object o2) {
187 int scale = (sortReversed ? -1 : 1);
188 return scale * ((ProcessInfo) o1).getName().compareToIgnoreCase(((ProcessInfo) o2).getName());
189 }
190 };
191 } else {
192 c = new Comparator() {
193 public int compare(Object o1, Object o2) {
194 int scale = (sortReversed ? -1 : 1);
195 int pid1 = ((ProcessInfo) o1).getPid();
196 int pid2 = ((ProcessInfo) o2).getPid();
197 int ret;
198 if (pid1 < pid2) ret = -1;
199 else if (pid1 == pid2) ret = 0;
200 else ret = 1;
201 return ret * scale;
202 }
203 };
204 }
205 Collections.sort(els, c);
206 }
207
208 private javax.swing.Timer getTimer() {
209 if (timer == null) {
210 timer = new javax.swing.Timer(1000, new ActionListener() {
211 public void actionPerformed(ActionEvent e) {
212 update();
213 }
214 });
215 }
216 return timer;
217 }
218
219 private synchronized int getPid(java.util.List els, int index) {
220 return ((ProcessInfo) els.get(index)).getPid();
221 }
222
223 private synchronized int findPid(java.util.List els, int pid) {
224 for (int i = 0; i < els.size(); i++) {
225 ProcessInfo info = (ProcessInfo) els.get(i);
226 if (info.getPid() == pid) {
227 return i;
228 }
229 }
230 return -1;
231 }
232 }