Utils


1   package org.sapia.clazzy;
2   
3   import java.io.ByteArrayOutputStream  ;
4   import java.io.IOException  ;
5   import java.io.InputStream  ;
6   
7   /**
8    * Holds misc. utilities.
9    * 
10   * @author Yanick Duchesne
11   * 
12   * <dl>
13   * <dt><b>Copyright: </b>
14   * <dd>Copyright &#169; 2002-2004 <a HREF="http://www.sapia-oss.org">Sapia Open
15   * Source Software </a>. All Rights Reserved.</dd>
16   * </dt>
17   * <dt><b>License: </b>
18   * <dd>Read the license.txt file of the jar or visit the <a
19   * HREF="http://www.sapia-oss.org/license.html">license page </a> at the Sapia
20   * OSS web site</dd>
21   * </dt>
22   * </dl>
23   */
24  public class Utils {
25  
26    static final int BUFSZ = 1096;
27  
28    /**
29     * @param is
30     *          an <code>InputStream</code>
31     * @return the <code>byte</code> s of data contained in the stream.
32     * @throws IOException
33     *           if an IO problem occurs.
34     */
35    public static byte[] streamToBytes(InputStream   is) throws IOException   {
36      int read = 0;
37      byte[] buf = new byte[BUFSZ];
38      ByteArrayOutputStream   bos = new ByteArrayOutputStream  (BUFSZ);
39      while((read = is.read(buf)) > 0) {
40        bos.write(buf, 0, read);
41      }
42      return bos.toByteArray();
43    }
44    
45    /**
46     * @param className
47     * @return the name of package for the given class name, or null if
48     * no package exists (class is part of default package).
49     */
50    public static String   getPackageNameFor(String   className){
51      int i = className.lastIndexOf('.');
52      if(i < 0){
53        return null;
54      }
55      else{
56        return className.substring(0, i);
57      }
58    }
59  
60  }
61
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