1 /*
2 * $Id: ByteConverter.java,v 1.2 2004/04/04 18:27:45 eelco12 Exp $
3 * $Revision: 1.2 $
4 * $Date: 2004/04/04 18:27:45 $
5 *
6 * ====================================================================
7 * Copyright (c) 2003, Open Edge B.V.
8 * All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 * Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer. Redistributions
13 * in binary form must reproduce the above copyright notice, this list of
14 * conditions and the following disclaimer in the documentation and/or other
15 * materials provided with the distribution. Neither the name of OpenEdge B.V.
16 * nor the names of its contributors may be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 package nl.openedge.baritus.converters;
32
33
34 /***
35 * <p>{@link Converter} implementation that converts an incoming
36 * String into a <code>java.lang.Byte</code> object,
37 * throwing a {@link ConversionException} if a conversion
38 * error occurs.</p>
39 *
40 * @author Eelco Hillenius
41 */
42
43 public final class ByteConverter implements Converter
44 {
45
46 /***
47 * Create a {@link Converter} that will throw a {@link ConversionException}
48 * if a conversion error occurs.
49 */
50 public ByteConverter()
51 {
52
53 }
54
55 /***
56 * Convert the specified input object into an output object of the
57 * specified type.
58 *
59 * @param type Data type to which this value should be converted
60 * @param value The input value to be converted
61 *
62 * @exception ConversionException if conversion cannot be performed
63 * successfully
64 */
65 public Object convert(Class type, Object value)
66 {
67
68 if (value == null)
69 {
70 return null;
71 }
72
73 if (value instanceof Byte)
74 {
75 return (value);
76 }
77 else if (value instanceof Number)
78 {
79 return new Byte(((Number)value).byteValue());
80 }
81
82 try
83 {
84 return (new Byte(value.toString()));
85 }
86 catch (Exception e)
87 {
88 throw new ConversionException(e);
89 }
90
91 }
92
93
94 }