StdoutDebug


1   package org.sapia.ubik.util;
2   
3   import java.io.PrintStream  ;
4   
5   /**
6    * A <code>Debug</code> implementation that logs to stdout.
7    * 
8    * @author Yanick Duchesne
9    *
10   * <dl>
11   * <dt><b>Copyright:</b><dd>Copyright &#169; 2002-2005 <a HREF="http://www.sapia-oss.org">Sapia Open Source Software</a>. All Rights Reserved.</dd></dt>
12   * <dt><b>License:</b><dd>Read the license.txt file of the jar or visit the
13   *        <a HREF="http://www.sapia-oss.org/license.html">license page</a> at the Sapia OSS web site</dd></dt>
14   * </dl>
15   */
16  public class StdoutDebug implements Debug{
17    
18    private boolean _on;
19    
20    /**
21     * @see org.sapia.ubik.net.nio.util.Debug#out()
22     */
23    public PrintStream   out() {
24      return System.out;
25    }
26    
27    /**
28     * @see org.sapia.ubik.net.nio.util.Debug#on()
29     */
30    public boolean on() {
31      return _on;
32    }
33    
34    public void on(boolean on){
35      _on = on;
36    }
37    
38    /**
39     * @see org.sapia.ubik.net.nio.util.Debug#out(java.lang.Class, java.lang.String)
40     */
41    public void out(Class   caller, String   msg) {
42      if(_on){
43        StringBuffer   buf = new StringBuffer  ("[");
44        buf.append(caller.getName());
45        buf.append("] ");
46        buf.append(msg);
47        System.out.println(buf.toString());
48      }
49    }
50    
51    /**
52     * @see org.sapia.ubik.net.nio.util.Debug#out(java.lang.Class, java.lang.String, java.lang.Throwable)
53     */
54    public void out(Class   caller, String   msg, Throwable   err) {
55      if(_on){
56        StringBuffer   buf = new StringBuffer  ("[");
57        buf.append(caller.getName());
58        buf.append("] ");
59        if(msg != null)
60          buf.append(msg);
61        System.out.println(buf.toString());
62        if(err != null)
63          err.printStackTrace(System.out);
64      }
65    }
66  
67  }
68
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