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agent/src/share/classes/sun/jvm/hotspot/tools/jcore/ClassDump.java@a61af66fc99e (annotated)

agent/src/share/classes/sun/jvm/hotspot/tools/jcore/ClassDump.java

Sat, 01 Dec 2007 00:00:00 +0000

author

duke

date

Sat, 01 Dec 2007 00:00:00 +0000

changeset 435

a61af66fc99e

child 1140

1f2abec69714

permissions

-rw-r--r--

Initial load

duke@435	1	/*
duke@435	2	* Copyright 2002-2004 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	package sun.jvm.hotspot.tools.jcore;
duke@435	26
duke@435	27	import java.io.*;
duke@435	28	import sun.jvm.hotspot.memory.*;
duke@435	29	import sun.jvm.hotspot.oops.*;
duke@435	30	import sun.jvm.hotspot.debugger.*;
duke@435	31	import sun.jvm.hotspot.runtime.*;
duke@435	32	import sun.jvm.hotspot.tools.*;
duke@435	33
duke@435	34	public class ClassDump extends Tool {
duke@435	35	private ClassFilter classFilter;
duke@435	36	private String outputDirectory;
duke@435	37
duke@435	38	public void run() {
duke@435	39	// Ready to go with the database...
duke@435	40	try {
duke@435	41
duke@435	42	// load class filters
duke@435	43
duke@435	44	String filterClassName = System.getProperty("sun.jvm.hotspot.tools.jcore.filter");
duke@435	45	if (filterClassName != null) {
duke@435	46	try {
duke@435	47	Class filterClass = Class.forName(filterClassName);
duke@435	48	classFilter = (ClassFilter) filterClass.newInstance();
duke@435	49	} catch(Exception exp) {
duke@435	50	System.err.println("Warning: Can not create class filter!");
duke@435	51	}
duke@435	52	}
duke@435	53
duke@435	54	outputDirectory = System.getProperty("sun.jvm.hotspot.tools.jcore.outputDir");
duke@435	55	if (outputDirectory == null)
duke@435	56	outputDirectory = ".";
duke@435	57
duke@435	58	// walk through the system dictionary
duke@435	59	SystemDictionary dict = VM.getVM().getSystemDictionary();
duke@435	60	dict.classesDo(new SystemDictionary.ClassVisitor() {
duke@435	61	public void visit(Klass k) {
duke@435	62	if (k instanceof InstanceKlass)
duke@435	63	dumpKlass((InstanceKlass) k);
duke@435	64	}
duke@435	65	});
duke@435	66	}
duke@435	67	catch (AddressException e) {
duke@435	68	System.err.println("Error accessing address 0x"
duke@435	69	+ Long.toHexString(e.getAddress()));
duke@435	70	e.printStackTrace();
duke@435	71	}
duke@435	72	}
duke@435	73
duke@435	74	public String getName() {
duke@435	75	return "jcore";
duke@435	76	}
duke@435	77
duke@435	78	private void dumpKlass(InstanceKlass kls) {
duke@435	79	if (classFilter != null && ! classFilter.canInclude(kls) ) {
duke@435	80	return;
duke@435	81	}
duke@435	82
duke@435	83	String klassName = kls.getName().asString();
duke@435	84	klassName = klassName.replace('/', File.separatorChar);
duke@435	85	int index = klassName.lastIndexOf(File.separatorChar);
duke@435	86	File dir = null;
duke@435	87	if (index != -1) {
duke@435	88	String dirName = klassName.substring(0, index);
duke@435	89	dir = new File(outputDirectory, dirName);
duke@435	90	} else {
duke@435	91	dir = new File(outputDirectory);
duke@435	92	}
duke@435	93
duke@435	94	dir.mkdirs();
duke@435	95	File f = new File(dir, klassName.substring(klassName.lastIndexOf(File.separatorChar) + 1)
duke@435	96	+ ".class");
duke@435	97	try {
duke@435	98	f.createNewFile();
duke@435	99	OutputStream os = new BufferedOutputStream(new FileOutputStream(f));
duke@435	100	try {
duke@435	101	ClassWriter cw = new ClassWriter(kls, os);
duke@435	102	cw.write();
duke@435	103	} finally {
duke@435	104	os.close();
duke@435	105	}
duke@435	106	} catch(IOException exp) {
duke@435	107	exp.printStackTrace();
duke@435	108	}
duke@435	109	}
duke@435	110
duke@435	111	public static void main(String[] args) {
duke@435	112	ClassDump cd = new ClassDump();
duke@435	113	cd.start(args);
duke@435	114	cd.stop();
duke@435	115	}
duke@435	116	}