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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/com/sun/tools/hat/Main.java (1 of 18352 files). Show all

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1/*
2 * Copyright (c) 2005, 2008, 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/*
27 * The Original Code is HAT. The Initial Developer of the
28 * Original Code is Bill Foote, with contributions from others
29 * at JavaSoft/Sun.
30 */
31
32package com.sun.tools.hat;
33
34import java.io.IOException;
35import java.io.File;
36
37import com.sun.tools.hat.internal.model.Snapshot;
38import com.sun.tools.hat.internal.model.ReachableExcludesImpl;
39import com.sun.tools.hat.internal.server.QueryListener;
40
41/**
42 *
43 * @author Bill Foote
44 */
45
46
47public class Main {
48
49 private static String VERSION_STRING = "jhat version 2.0";
50
51 private static void usage(String message) {
52 if ( message != null ) {
53 System.err.println("ERROR: " + message);
54 }
55 System.err.println("Usage: jhat [-stack <bool>] [-refs <bool>] [-port <port>] [-baseline <file>] [-debug <int>] [-version] [-h|-help] <file>");
56 System.err.println();
57 System.err.println("\t-J<flag> Pass <flag> directly to the runtime system. For");
58 System.err.println("\t\t\t example, -J-mx512m to use a maximum heap size of 512MB");
59 System.err.println("\t-stack false: Turn off tracking object allocation call stack.");
60 System.err.println("\t-refs false: Turn off tracking of references to objects");
61 System.err.println("\t-port <port>: Set the port for the HTTP server. Defaults to 7000");
62 System.err.println("\t-exclude <file>: Specify a file that lists data members that should");
63 System.err.println("\t\t\t be excluded from the reachableFrom query.");
64 System.err.println("\t-baseline <file>: Specify a baseline object dump. Objects in");
65 System.err.println("\t\t\t both heap dumps with the same ID and same class will");
66 System.err.println("\t\t\t be marked as not being \"new\".");
67 System.err.println("\t-debug <int>: Set debug level.");
68 System.err.println("\t\t\t 0: No debug output");
69 System.err.println("\t\t\t 1: Debug hprof file parsing");
70 System.err.println("\t\t\t 2: Debug hprof file parsing, no server");
71 System.err.println("\t-version Report version number");
72 System.err.println("\t-h|-help Print this help and exit");
73 System.err.println("\t<file> The file to read");
74 System.err.println();
75 System.err.println("For a dump file that contains multiple heap dumps,");
76 System.err.println("you may specify which dump in the file");
77 System.err.println("by appending \"#<number>\" to the file name, i.e. \"foo.hprof#3\".");
78 System.err.println();
79 System.err.println("All boolean options default to \"true\"");
80 System.exit(1);
81 }
82
83 //
84 // Convert s to a boolean. If it's invalid, abort the program.
85 //
86 private static boolean booleanValue(String s) {
87 if ("true".equalsIgnoreCase(s)) {
88 return true;
89 } else if ("false".equalsIgnoreCase(s)) {
90 return false;
91 } else {
92 usage("Boolean value must be true or false");
93 return false; // Never happens
94 }
95 }
96
97 public static void main(String[] args) {
98 if (args.length < 1) {
99 usage("No arguments supplied");
100 }
101
102 boolean parseonly = false;
103 int portNumber = 7000;
104 boolean callStack = true;
105 boolean calculateRefs = true;
106 String baselineDump = null;
107 String excludeFileName = null;
108 int debugLevel = 0;
109 for (int i = 0; ; i += 2) {
110 if (i > (args.length - 1)) {
111 usage("Option parsing error");
112 }
113 if ("-version".equals(args[i])) {
114 System.out.print(VERSION_STRING);
115 System.out.println(" (java version " + System.getProperty("java.version") + ")");
116 System.exit(0);
117 }
118
119 if ("-h".equals(args[i]) || "-help".equals(args[i])) {
120 usage(null);
121 }
122
123 if (i == (args.length - 1)) {
124 break;
125 }
126 String key = args[i];
127 String value = args[i+1];
128 if ("-stack".equals(key)) {
129 callStack = booleanValue(value);
130 } else if ("-refs".equals(key)) {
131 calculateRefs = booleanValue(value);
132 } else if ("-port".equals(key)) {
133 portNumber = Integer.parseInt(value, 10);
134 } else if ("-exclude".equals(key)) {
135 excludeFileName = value;
136 } else if ("-baseline".equals(key)) {
137 baselineDump = value;
138 } else if ("-debug".equals(key)) {
139 debugLevel = Integer.parseInt(value, 10);
140 } else if ("-parseonly".equals(key)) {
141 // Undocumented option. To be used for testing purpose only
142 parseonly = booleanValue(value);
143 }
144 }
145 String fileName = args[args.length - 1];
146 Snapshot model = null;
147 File excludeFile = null;
148 if (excludeFileName != null) {
149 excludeFile = new File(excludeFileName);
150 if (!excludeFile.exists()) {
151 System.out.println("Exclude file " + excludeFile
152 + " does not exist. Aborting.");
153 System.exit(1);
154 }
155 }
156
157 System.out.println("Reading from " + fileName + "...");
158 try {
159 model = com.sun.tools.hat.internal.parser.Reader.readFile(fileName, callStack, debugLevel);
160 } catch (IOException ex) {
161 ex.printStackTrace();
162 System.exit(1);
163 } catch (RuntimeException ex) {
164 ex.printStackTrace();
165 System.exit(1);
166 }
167 System.out.println("Snapshot read, resolving...");
168 model.resolve(calculateRefs);
169 System.out.println("Snapshot resolved.");
170
171 if (excludeFile != null) {
172 model.setReachableExcludes(new ReachableExcludesImpl(excludeFile));
173 }
174
175 if (baselineDump != null) {
176 System.out.println("Reading baseline snapshot...");
177 Snapshot baseline = null;
178 try {
179 baseline = com.sun.tools.hat.internal.parser.Reader.readFile(baselineDump, false,
180 debugLevel);
181 } catch (IOException ex) {
182 ex.printStackTrace();
183 System.exit(1);
184 } catch (RuntimeException ex) {
185 ex.printStackTrace();
186 System.exit(1);
187 }
188 baseline.resolve(false);
189 System.out.println("Discovering new objects...");
190 model.markNewRelativeTo(baseline);
191 baseline = null; // Guard against conservative GC
192 }
193 if ( debugLevel == 2 ) {
194 System.out.println("No server, -debug 2 was used.");
195 System.exit(0);
196 }
197
198 if (parseonly) {
199 // do not start web server.
200 System.out.println("-parseonly is true, exiting..");
201 System.exit(0);
202 }
203
204 QueryListener listener = new QueryListener(portNumber);
205 listener.setModel(model);
206 Thread t = new Thread(listener, "Query Listener");
207 t.setPriority(Thread.NORM_PRIORITY+1);
208 t.start();
209 System.out.println("Started HTTP server on port " + portNumber);
210 System.out.println("Server is ready.");
211 }
212}