01: /*
02: Copyright (c) 2005, MentorGen, LLC
03: All rights reserved.
04:
05: Redistribution and use in source and binary forms, with or without
06: modification, are permitted provided that the following conditions are met:
07:
08: + Redistributions of source code must retain the above copyright notice,
09: this list of conditions and the following disclaimer.
10: + Redistributions in binary form must reproduce the above copyright notice,
11: this list of conditions and the following disclaimer in the documentation
12: and/or other materials provided with the distribution.
13: + Neither the name of MentorGen LLC nor the names of its contributors may be
14: used to endorse or promote products derived from this software without
15: specific prior written permission.
16:
17: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27: POSSIBILITY OF SUCH DAMAGE.
28: */
29: package com.mentorgen.tools.profile;
30:
31: import java.io.File;
32: import java.io.FileInputStream;
33: import java.io.IOException;
34: import java.lang.instrument.Instrumentation;
35: import java.util.Properties;
36:
37: import com.mentorgen.tools.profile.instrument.Transformer;
38:
39: public class Main {
40:
41: /**
42: * Useage: <br>
43: * <pre><code>java -javaagent:lib/profile.jar -Dprofile.properties=properties-file-name</code></pre>
44: * <p>
45: *
46: *
47: * @param args
48: * @param inst
49: */
50: public static void premain(String args, Instrumentation inst) {
51: Properties props = null;
52:
53: if (args != null && args.length() != 0 && !args.equals("null")) {
54: System.err.println("The -javaagent:foo=bar syntax is no "
55: + "longer supported.");
56: System.err
57: .println("Use the VM property profile.properties "
58: + "instead.");
59: System.err.println("Continuing using the defaults.");
60: }
61:
62: if (args == null || args.length() == 0 || args.equals("null")) {
63: props = new Properties();
64: } else if (!new File(args).exists()) {
65: props = new Properties();
66: } else {
67: props = new Properties();
68: try {
69: props.load(new FileInputStream(args));
70: } catch (IOException e) {
71: e.printStackTrace();
72: // leave the props file empty
73: }
74: }
75:
76: inst.addTransformer(new Transformer());
77: }
78:
79: }
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