ConstructableProperties


1   /*****************************************************************************
2    * Copyright (c) PicoContainer Organization. All rights reserved.            *
3    * ------------------------------------------------------------------------- *
4    * The software in this package is published under the terms of the BSD      *
5    * style license a copy of which has been included with this distribution in *
6    * the license.html file.                                                    *
7    *                                                                           *
8    * Idea by Rachel Davies, Original code by Aslak Hellesoy and Paul Hammant   *
9    *****************************************************************************/
10  package org.picocontainer.gems.util;
11  
12  
13  import java.util.Properties  ;
14  import java.io.IOException  ;
15  import java.io.InputStream  ;
16  
17  /**
18   * constructable properties. 
19   *
20   * @author    Konstantin Pribluda ( ko5tik[at]codehaus.org )
21   * @version   $Revision: 2002 $
22   */
23  public class ConstructableProperties extends Properties   {
24  
25      /**
26       * create properties from classpath resource using context classloader
27       *
28       * @param resource         resource name
29       * @exception IOException passed from Properties.load()
30       */
31      public ConstructableProperties(String   resource) throws IOException   {
32          super();
33          load(Thread.currentThread().getContextClassLoader().getResourceAsStream(resource));
34      }
35      /**
36       * 
37       * @param resource resource name
38       * @param defaults default properties
39       * @throws IOException can be thrown if something goes wrong
40       */
41      public ConstructableProperties(String   resource, Properties   defaults) throws IOException   {
42          super(defaults);
43          load(Thread.currentThread().getContextClassLoader().getResourceAsStream(resource));   
44      }
45      
46      /**
47       * create properties from input stream
48       * @param stream to read from 
49       * @throws IOException can be thrown by properties objkect
50       */
51      public ConstructableProperties(InputStream   stream) throws IOException   {
52          super();
53          load(stream);
54      }
55      /**
56       * create from inpiut stream with default properties
57       * @param stream to read from 
58       * @param defaults default properties
59       * @throws IOException can be thrown by properties object
60       */
61      public ConstructableProperties(InputStream   stream, Properties   defaults) throws IOException   {
62          super(defaults);
63          load(stream);
64      }
65  }
66
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