1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id$
29 */
30
31 package jtge.engine.io;
32
33 import java.io.IOException;
34 import java.io.InputStream;
35 import java.io.OutputStream;
36 import jtge.engine.io.IInput;
37 import jtge.engine.io.IInputOutputFactory;
38 import jtge.engine.io.IOutput;
39
40 /***
41 * Helper factory to close created streams.
42 *
43 * @author Mathieu Champlon
44 * @version $Revision$ $Date$
45 */
46 class CloseFactory implements IInputOutputFactory
47 {
48 /***
49 * Wrapped factory.
50 */
51 private IInputOutputFactory factory;
52
53 CloseFactory( final IInputOutputFactory factory )
54 {
55 this.factory = factory;
56 }
57
58 /***
59 * {@inheritdoc}
60 */
61 public final IInput create( final InputStream stream )
62 {
63 try
64 {
65 if( stream != null )
66 stream.close();
67 }
68 catch( IOException e )
69 {
70 }
71 return factory.create( stream );
72 }
73
74 /***
75 * {@inheritdoc}
76 */
77 public final IOutput create( final OutputStream stream )
78 {
79 try
80 {
81 if( stream != null )
82 stream.close();
83 }
84 catch( IOException e )
85 {
86 }
87 return factory.create( stream );
88 }
89 }