01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41:
42: package demo;
43:
44: import java.io.File;
45: import java.util.Collection;
46: import java.util.*;
47: import org.netbeans.insane.scanner.*;
48:
49: /*
50: * Creates a demo heap dump of the virtual machine it is started from.
51: *
52: * @author Nenik
53: */
54: public class DemoScanner {
55:
56: public static void main(String[] args) throws Exception {
57: // use the real path to the file
58: String fName = "ins.xml";
59:
60: // Create a visitor that will count discovered objects ...
61: CountingVisitor counter = new CountingVisitor();
62:
63: // ... and another one that will dump them to a file ...
64: SimpleXmlVisitor dump = new SimpleXmlVisitor(new File(fName));
65:
66: // and join them into one Visitor instance
67: Visitor visitor = ScannerUtils.compoundVisitor(new Visitor[] {
68: counter, dump });
69:
70: // Pick some representative root instance. Custom class loader
71: // or main window are good candidates.
72: Collection roots = Collections.singleton(ClassLoader
73: .getSystemClassLoader());
74:
75: // perform the scan, it may use ScannerUtils.scanExclusivelyInAWT()
76: ScannerUtils.scan(null, visitor, roots, true);
77:
78: // flush/close the xml file
79: dump.close();
80:
81: // print little stats
82: System.out.println("Found " + counter.getTotalCount()
83: + " objects using " + counter.getTotalSize()
84: + " bytes.");
85: }
86:
87: }
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