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1 /*
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2 * Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.ui;
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26
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27 import java.io.*;
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28 import java.util.*;
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29 import java.awt.*;
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30 import java.awt.event.*;
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31 import javax.swing.*;
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32 import javax.swing.table.*;
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33
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34 import sun.jvm.hotspot.debugger.*;
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35 import sun.jvm.hotspot.oops.*;
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36 import sun.jvm.hotspot.runtime.*;
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37 import sun.jvm.hotspot.utilities.*;
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38 import sun.jvm.hotspot.ui.table.*;
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39 import sun.jvm.hotspot.ui.tree.*;
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40
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41 /** Lists objects along with their types */
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42
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43 public class ObjectListPanel extends SAPanel {
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44 private ObjectListTableModel dataModel;
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45 private JTable table;
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46 private java.util.List elements;
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47 private HeapProgressThunk thunk;
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48 private boolean checkedForArrays;
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49 private boolean hasArrays;
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50 private int numColumns;
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51 // For changing the text of the "Compute Liveness" button
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52 private JButton livenessButton;
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53 private ActionListener livenessButtonListener;
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54 private static final String showLivenessText = "Show Liveness";
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55
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56 /** Takes a List<Oop> in constructor, and an optional
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57 HeapProgressThunk used if computing liveness */
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58 public ObjectListPanel(java.util.List els,
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59 HeapProgressThunk thunk) {
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60 super();
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61
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62 elements = els;
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63 this.thunk = thunk;
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64 computeNumColumns();
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65
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66 setLayout(new BorderLayout());
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67
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68 dataModel = new ObjectListTableModel();
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69
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70 table = new JTable(dataModel);
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71 table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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72 JTableHeader header = table.getTableHeader();
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73 header.setDefaultRenderer(new SortHeaderCellRenderer(header, dataModel));
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74 header.addMouseListener(new SortHeaderMouseAdapter(table, dataModel));
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75
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76 JScrollPane scrollPane = new JScrollPane(table);
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77 add(scrollPane, BorderLayout.CENTER);
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78
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79 JPanel panel = new JPanel();
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80 panel.setLayout(new BoxLayout(panel, BoxLayout.X_AXIS));
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81 panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
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82 Box box = Box.createHorizontalBox();
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83 box.add(Box.createGlue());
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84 JButton button = new JButton("Inspect");
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85 button.addActionListener(new ActionListener() {
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86 public void actionPerformed(ActionEvent e) {
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87 fireShowInspector();
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88 }
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89 });
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90 box.add(button);
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91
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92 box.add(Box.createHorizontalStrut(20));
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93
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94 // Liveness button
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95 button = new JButton();
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96 livenessButton = button;
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97 if (VM.getVM().getRevPtrs() == null) {
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98 button.setText("Compute Liveness");
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99 livenessButtonListener = new ActionListener() {
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100 public void actionPerformed(ActionEvent e) {
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101 fireComputeLiveness();
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102 }
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103 };
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104 } else {
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105 button.setText("Show Liveness Path");
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106 livenessButtonListener = new ActionListener() {
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107 public void actionPerformed(ActionEvent e) {
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108 fireShowLiveness();
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109 }
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110 };
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111 }
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112 button.addActionListener(livenessButtonListener);
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113 box.add(button);
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114 box.add(Box.createGlue());
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115 panel.add(box);
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116 add(panel, BorderLayout.SOUTH);
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117 }
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118
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119 //--------------------------------------------------------------------------------
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120 // Internals only below this point
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121 //
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122
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123 private static class AddressWrapper implements Comparable {
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124 private Address address;
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125
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126 private AddressWrapper(Address address) {
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127 this.address = address;
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128 }
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129
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130 public String toString() {
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131 return address.toString();
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132 }
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133
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134 public int compareTo(Object o) {
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135 AddressWrapper wrapper = (AddressWrapper) o;
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136 Address addr = wrapper.address;
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137 if (AddressOps.lessThan(address, addr)) return -1;
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138 if (AddressOps.greaterThan(address, addr)) return 1;
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139 return 0;
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140 }
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141 }
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142
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143 private class ObjectListTableModel extends SortableTableModel {
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144 public ObjectListTableModel() {
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145 // Set the rows
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146 this.elements = ObjectListPanel.this.elements;
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147 setComparator(new ObjectListComparator(this));
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148 }
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149
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150 public int getColumnCount() { return numColumns; }
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151 public int getRowCount() { return elements.size(); }
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152 public String getColumnName(int col) {
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153 switch (col) {
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154 case 0:
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155 return "Address";
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156 case 1:
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157 return "Oop";
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158 case 2:
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159 if (hasArrays) {
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160 return "Length";
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161 } else {
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162 return "Class Description";
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163 }
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164 case 3:
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165 if (hasArrays) {
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166 return "Class Description";
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167 } else if (VM.getVM().getRevPtrs() != null) {
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168 return "Liveness";
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169 }
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170 case 4:
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171 if (hasArrays && (VM.getVM().getRevPtrs() != null)) {
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172 return "Liveness";
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173 }
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174 }
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175 throw new RuntimeException("Index " + col + " out of bounds");
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176 }
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177
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178 public Object getValueAt(int row, int col) {
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179 Oop oop = (Oop) elements.get(row);
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180 return getValueForColumn(oop, col);
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181 }
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182
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183 public Object getValueForColumn(Oop oop, int col) {
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184 ByteArrayOutputStream bos = new ByteArrayOutputStream();
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185
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186 switch (col) {
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187 case 0:
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188 return new AddressWrapper(oop.getHandle());
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189 case 1:
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190 oop.printValueOn(new PrintStream(bos));
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191 break;
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192 case 2:
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193 if (hasArrays) {
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194 if (oop instanceof Array) {
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195 return new Long(((Array) oop).getLength());
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196 }
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197 return null;
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198 } else {
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199 oop.getKlass().printValueOn(new PrintStream(bos));
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200 break;
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201 }
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202 case 3:
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203 if (hasArrays) {
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204 oop.getKlass().printValueOn(new PrintStream(bos));
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205 break;
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206 } else {
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207 if (VM.getVM().getRevPtrs() != null) {
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208 if (VM.getVM().getRevPtrs().get(oop) != null) {
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209 return "Alive";
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210 } else {
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211 return "Dead";
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212 }
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213 }
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214 }
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215 case 4:
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216 if (hasArrays) {
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217 if (VM.getVM().getRevPtrs() != null) {
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218 if (VM.getVM().getRevPtrs().get(oop) != null) {
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219 return "Alive";
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220 } else {
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221 return "Dead";
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222 }
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223 }
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224 }
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225 default:
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226 throw new RuntimeException("Column " + col + " out of bounds");
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227 }
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228
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229 return bos.toString();
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230 }
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231
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232 private class ObjectListComparator extends TableModelComparator {
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233 public ObjectListComparator(ObjectListTableModel model) {
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234 super(model);
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235 }
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236
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237 /**
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238 * Returns the value for the comparing object for the
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239 * column.
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240 *
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241 * @param obj Object that was passed for Comparator
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242 * @param column the column to retrieve
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243 */
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244 public Object getValueForColumn(Object obj, int column) {
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245 ObjectListTableModel omodel = (ObjectListTableModel)model;
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246 return omodel.getValueForColumn((Oop) obj, column);
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247 }
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248 }
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249 }
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250
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251 private void fireShowInspector() {
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252 int i = table.getSelectedRow();
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253 if (i < 0) {
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254 return;
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255 }
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256
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257 Oop oop = (Oop) elements.get(i);
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258
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259 for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
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260 SAListener listener = (SAListener) iter.next();
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261 listener.showInspector(new OopTreeNodeAdapter(oop, null));
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262 }
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263 }
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264
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265 private void fireComputeLiveness() {
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266 final Runnable cutoverButtonRunnable = new Runnable() {
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267 public void run() {
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268 livenessButton.removeActionListener(livenessButtonListener);
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269 livenessButtonListener = null;
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270 livenessButton.addActionListener(new ActionListener() {
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271 public void actionPerformed(ActionEvent e) {
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272 fireShowLiveness();
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273 }
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274 });
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275 computeNumColumns();
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276 livenessButton.setEnabled(true);
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277 livenessButton.setText(showLivenessText);
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278 dataModel.fireTableStructureChanged();
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279 }
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280 };
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281
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282
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283 if (VM.getVM().getRevPtrs() != null) {
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284 cutoverButtonRunnable.run();
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285 } else {
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286 final WorkerThread worker = new WorkerThread();
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287 worker.invokeLater(new Runnable() {
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288 public void run() {
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289 try {
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290 ReversePtrsAnalysis rev = new ReversePtrsAnalysis();
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291 if (thunk != null) {
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292 rev.setHeapProgressThunk(thunk);
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293 }
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294 rev.run();
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295 cutoverButtonRunnable.run();
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296 } finally {
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297 worker.shutdown();
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298 }
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299 }
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300 });
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301 }
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302 }
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303
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304 private void fireShowLiveness() {
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305 if (VM.getVM().getRevPtrs() == null) {
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306 return;
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307 }
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308
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309 int i = table.getSelectedRow();
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310 if (i < 0) {
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311 return;
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312 }
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313
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314 Oop oop = (Oop) elements.get(i);
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315 LivenessPathList list = LivenessAnalysis.computeAllLivenessPaths(oop);
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316 if (list == null) {
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317 return; // dead object
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318 }
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319
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320 for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
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321 SAListener listener = (SAListener) iter.next();
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322 listener.showLiveness(oop, list);
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323 }
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324 }
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325
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326 private void checkForArrays() {
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327 if (checkedForArrays) return;
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328 checkedForArrays = true;
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329 for (Iterator iter = elements.iterator(); iter.hasNext(); ) {
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330 if (iter.next() instanceof Array) {
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331 hasArrays = true;
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332 return;
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333 }
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334 }
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335 }
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336
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337 private void computeNumColumns() {
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338 checkForArrays();
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339 numColumns = 3;
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340 if (hasArrays) ++numColumns;
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341 if (VM.getVM().getRevPtrs() != null) ++numColumns;
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342 }
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343 }
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