StackTrace


1   package com.sun.enterprise.util.diagnostics;
2   
3   import java.io.*;
4   import java.util.*;
5   /*
6    * The contents of this file are subject to the terms 
7    * of the Common Development and Distribution License 
8    * (the License).  You may not use this file except in
9    * compliance with the License.
10   * 
11   * You can obtain a copy of the license at 
12   * https://glassfish.dev.java.net/public/CDDLv1.0.html or
13   * glassfish/bootstrap/legal/CDDLv1.0.txt.
14   * See the License for the specific language governing 
15   * permissions and limitations under the License.
16   * 
17   * When distributing Covered Code, include this CDDL 
18   * Header Notice in each file and include the License file 
19   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
20   * If applicable, add the following below the CDDL Header, 
21   * with the fields enclosed by brackets [] replaced by
22   * you own identifying information: 
23   * "Portions Copyrighted [year] [name of copyright owner]"
24   * 
25   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
26   */
27  
28  /**
29   * The class <code>StackTrace</code> is a simple class -- its toString() method generates a stack trace
30   * @author Byron Nevins
31   * @see com.elf.diagnostics.Reporter
32   * @since iAB 6.0
33   */
34  
35  public class StackTrace
36  {
37      /** Creates a new StackTrace object, which is based at the execution location.
38       *
39       * This is useful for finding out who called a function.
40       */    
41      public StackTrace()
42      {
43          throwable = new Throwable  ();
44      }
45  
46          /** create a stackTrace object for the given Throwable
47           * @param t The Throwable that you are interested in.
48           */        
49      public StackTrace(Throwable   t)
50      {
51          throwable = t;
52      }
53  
54          /** Used by the Reporter class
55           * @return The text of a stack trace.
56           * @see Reporter
57           */        
58      public String   toString()
59      {
60          ByteArrayOutputStream   baos    = new ByteArrayOutputStream();
61          PrintWriter             pw      = new PrintWriter(baos);
62  
63          // create the stack trace
64          throwable.printStackTrace(pw);
65          pw.flush();
66          return baos.toString();
67      }
68      
69          /** This really should be private.  Do not use this.
70           */        
71      Throwable   throwable = null;
72  }
73  
74
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