1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 |
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27 /* |
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28 * The Original Code is HAT. The Initial Developer of the |
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29 * Original Code is Bill Foote, with contributions from others |
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30 * at JavaSoft/Sun. |
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31 */ |
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32 |
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33 package com.sun.tools.hat.internal.server; |
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34 |
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35 import java.io.PrintWriter; |
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36 |
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37 import com.sun.tools.hat.internal.model.*; |
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38 import com.sun.tools.hat.internal.util.Misc; |
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39 import java.io.StringWriter; |
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40 |
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41 import java.net.URLEncoder; |
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42 import java.io.UnsupportedEncodingException; |
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43 |
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44 /** |
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45 * |
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46 * @author Bill Foote |
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47 */ |
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48 |
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49 |
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50 abstract class QueryHandler { |
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51 |
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52 protected String urlStart; |
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53 protected String query; |
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54 protected PrintWriter out; |
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55 protected Snapshot snapshot; |
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56 |
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57 abstract void run(); |
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58 |
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59 |
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60 void setUrlStart(String s) { |
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61 urlStart = s; |
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62 } |
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63 |
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64 void setQuery(String s) { |
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65 query = s; |
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66 } |
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67 |
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68 void setOutput(PrintWriter o) { |
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69 this.out = o; |
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70 } |
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71 |
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72 void setSnapshot(Snapshot ss) { |
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73 this.snapshot = ss; |
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74 } |
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75 |
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76 protected String encodeForURL(String s) { |
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77 try { |
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78 s = URLEncoder.encode(s, "UTF-8"); |
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79 } catch (UnsupportedEncodingException ex) { |
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80 // Should never happen |
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81 ex.printStackTrace(); |
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82 } |
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83 return s; |
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84 } |
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85 |
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86 protected void startHtml(String title) { |
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87 out.print("<html><title>"); |
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88 print(title); |
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89 out.println("</title>"); |
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90 out.println("<body bgcolor=\"#ffffff\"><center><h1>"); |
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91 print(title); |
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92 out.println("</h1></center>"); |
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93 } |
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94 |
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95 protected void endHtml() { |
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96 out.println("</body></html>"); |
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97 } |
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98 |
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99 protected void error(String msg) { |
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100 println(msg); |
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101 } |
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102 |
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103 protected void printAnchorStart() { |
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104 out.print("<a href=\""); |
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105 out.print(urlStart); |
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106 } |
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107 |
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108 protected void printThingAnchorTag(long id) { |
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109 printAnchorStart(); |
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110 out.print("object/"); |
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111 printHex(id); |
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112 out.print("\">"); |
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113 } |
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114 |
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115 protected void printObject(JavaObject obj) { |
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116 printThing(obj); |
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117 } |
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118 |
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119 protected void printThing(JavaThing thing) { |
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120 if (thing == null) { |
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121 out.print("null"); |
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122 return; |
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123 } |
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124 if (thing instanceof JavaHeapObject) { |
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125 JavaHeapObject ho = (JavaHeapObject) thing; |
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126 long id = ho.getId(); |
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127 if (id != -1L) { |
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128 if (ho.isNew()) |
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129 out.println("<strong>"); |
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130 printThingAnchorTag(id); |
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131 } |
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132 print(thing.toString()); |
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133 if (id != -1) { |
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134 if (ho.isNew()) |
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135 out.println("[new]</strong>"); |
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136 out.print(" (" + ho.getSize() + " bytes)"); |
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137 out.println("</a>"); |
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138 } |
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139 } else { |
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140 print(thing.toString()); |
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141 } |
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142 } |
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143 |
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144 protected void printRoot(Root root) { |
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145 StackTrace st = root.getStackTrace(); |
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146 boolean traceAvailable = (st != null) && (st.getFrames().length != 0); |
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147 if (traceAvailable) { |
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148 printAnchorStart(); |
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149 out.print("rootStack/"); |
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150 printHex(root.getIndex()); |
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151 out.print("\">"); |
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152 } |
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153 print(root.getDescription()); |
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154 if (traceAvailable) { |
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155 out.print("</a>"); |
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156 } |
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157 } |
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158 |
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159 protected void printClass(JavaClass clazz) { |
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160 if (clazz == null) { |
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161 out.println("null"); |
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162 return; |
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163 } |
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164 printAnchorStart(); |
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165 out.print("class/"); |
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166 print(encodeForURL(clazz)); |
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167 out.print("\">"); |
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168 print(clazz.toString()); |
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169 out.println("</a>"); |
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170 } |
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171 |
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172 protected String encodeForURL(JavaClass clazz) { |
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173 if (clazz.getId() == -1) { |
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174 return encodeForURL(clazz.getName()); |
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175 } else { |
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176 return clazz.getIdString(); |
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177 } |
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178 } |
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179 |
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180 protected void printField(JavaField field) { |
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181 print(field.getName() + " (" + field.getSignature() + ")"); |
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182 } |
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183 |
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184 protected void printStatic(JavaStatic member) { |
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185 JavaField f = member.getField(); |
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186 printField(f); |
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187 out.print(" : "); |
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188 if (f.hasId()) { |
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189 JavaThing t = member.getValue(); |
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190 printThing(t); |
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191 } else { |
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192 print(member.getValue().toString()); |
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193 } |
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194 } |
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195 |
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196 protected void printStackTrace(StackTrace trace) { |
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197 StackFrame[] frames = trace.getFrames(); |
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198 for (int i = 0; i < frames.length; i++) { |
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199 StackFrame f = frames[i]; |
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200 String clazz = f.getClassName(); |
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201 out.print("<font color=purple>"); |
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202 print(clazz); |
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203 out.print("</font>"); |
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204 print("." + f.getMethodName() + "(" + f.getMethodSignature() + ")"); |
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205 out.print(" <bold>:</bold> "); |
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206 print(f.getSourceFileName() + " line " + f.getLineNumber()); |
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207 out.println("<br>"); |
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208 } |
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209 } |
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210 |
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211 protected void printException(Throwable t) { |
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212 println(t.getMessage()); |
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213 out.println("<pre>"); |
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214 StringWriter sw = new StringWriter(); |
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215 t.printStackTrace(new PrintWriter(sw)); |
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216 print(sw.toString()); |
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217 out.println("</pre>"); |
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218 } |
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219 |
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220 protected void printHex(long addr) { |
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221 if (snapshot.getIdentifierSize() == 4) { |
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222 out.print(Misc.toHex((int)addr)); |
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223 } else { |
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224 out.print(Misc.toHex(addr)); |
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225 } |
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226 } |
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227 |
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228 protected long parseHex(String value) { |
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229 return Misc.parseHex(value); |
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230 } |
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231 |
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232 protected void print(String str) { |
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233 out.print(Misc.encodeHtml(str)); |
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234 } |
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235 |
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236 protected void println(String str) { |
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237 out.println(Misc.encodeHtml(str)); |
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238 } |
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239 } |
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