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comparison test/serviceability/dcmd/DcmdUtil.java @ 14246:afa21611f918

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8031304: Add dcmd to print all loaded dynamic libraries. Summary: Adding VM.dynlibs as a dcmd to dump all loaded dynamic libraries. Reviewed-by: sla, fparain, mgronlun, dsamersoff
author farvidsson
date Tue, 14 Jan 2014 15:27:01 +0100
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14245:768421ed8211 14246:afa21611f918
1 /*
2 * Copyright (c) 2013 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import sun.management.ManagementFactoryHelper;
25
26 import com.sun.management.DiagnosticCommandMBean;
27
28 public class DcmdUtil
29 {
30 public static String executeDcmd(String cmd, String ... args) {
31 DiagnosticCommandMBean dcmd = ManagementFactoryHelper.getDiagnosticCommandMBean();
32 Object[] dcmdArgs = {args};
33 String[] signature = {String[].class.getName()};
34
35 try {
36 System.out.print("> " + cmd + " ");
37 for (String s : args) {
38 System.out.print(s + " ");
39 }
40 System.out.println(":");
41 String result = (String) dcmd.invoke(transform(cmd), dcmdArgs, signature);
42 System.out.println(result);
43 return result;
44 } catch(Exception ex) {
45 ex.printStackTrace();
46 }
47 return null;
48 }
49
50 private static String transform(String name) {
51 StringBuilder sb = new StringBuilder();
52 boolean toLower = true;
53 boolean toUpper = false;
54 for (int i = 0; i < name.length(); i++) {
55 char c = name.charAt(i);
56 if (c == '.' || c == '_') {
57 toLower = false;
58 toUpper = true;
59 } else {
60 if (toUpper) {
61 toUpper = false;
62 sb.append(Character.toUpperCase(c));
63 } else if(toLower) {
64 sb.append(Character.toLowerCase(c));
65 } else {
66 sb.append(c);
67 }
68 }
69 }
70 return sb.toString();
71 }
72
73 }