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Java > Open Source Codes > org > krysalis > barcode > DefaultBarcodeClassResolver


1 /*
2  * $Id: DefaultBarcodeClassResolver.java,v 1.7 2003/08/18 19:31:37 jmaerki Exp $
3  * ============================================================================
4  * The Krysalis Patchy Software License, Version 1.1_01
5  * Copyright (c) 2002-2003 Nicola Ken Barozzi. All rights reserved.
6  *
7  * This Licence is compatible with the BSD licence as described and
8  * approved by http://www.opensource.org/, and is based on the
9  * Apache Software Licence Version 1.1.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  *
15  * 1. Redistributions of source code must retain the above copyright
16  * notice, this list of conditions and the following disclaimer.
17  *
18  * 2. Redistributions in binary form must reproduce the above copyright
19  * notice, this list of conditions and the following disclaimer in
20  * the documentation and/or other materials provided with the
21  * distribution.
22  *
23  * 3. The end-user documentation included with the redistribution,
24  * if any, must include the following acknowledgment:
25  * "This product includes software developed for project
26  * Krysalis (http://www.krysalis.org/)."
27  * Alternately, this acknowledgment may appear in the software itself,
28  * if and wherever such third-party acknowledgments normally appear.
29  *
30  * 4. The names "Krysalis" and "Nicola Ken Barozzi" and
31  * "Krysalis Barcode" must not be used to endorse or promote products
32  * derived from this software without prior written permission. For
33  * written permission, please contact nicolaken@krysalis.org.
34  *
35  * 5. Products derived from this software may not be called "Krysalis",
36  * "Krysalis Barcode", nor may "Krysalis" appear in their name,
37  * without prior written permission of Nicola Ken Barozzi.
38  *
39  * 6. This software may contain voluntary contributions made by many
40  * individuals, who decided to donate the code to this project in
41  * respect of this licence, and was originally created by
42  * Jeremias Maerki <jeremias@maerki.org>.
43  *
44  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
45  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
47  * DISCLAIMED. IN NO EVENT SHALL THE KRYSALIS PROJECT OR
48  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
50  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
51  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
52  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
54  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55  * SUCH DAMAGE.
56  * ====================================================================
57  */
58 package org.krysalis.barcode;
59
60 import java.util.Map JavaDoc;
61
62 /**
63  * This is a simple implementation of a BarcodeClassResolver.
64  *
65  * @author Jeremias Maerki
66  */
67 public class DefaultBarcodeClassResolver implements BarcodeClassResolver {
68
69     private Map JavaDoc classes;
70
71     /**
72      * Main constructor.
73      * <br>
74      * Already registers a default set of implementations.
75      */
76     public DefaultBarcodeClassResolver() {
77         registerBarcodeClass("codabar", "org.krysalis.barcode.impl.Codabar");
78         registerBarcodeClass("code39", "org.krysalis.barcode.impl.Code39");
79         registerBarcodeClass("code128", "org.krysalis.barcode.impl.Code128");
80         registerBarcodeClass("2of5", "org.krysalis.barcode.impl.Interleaved2Of5");
81         registerBarcodeClass("intl2of5", "org.krysalis.barcode.impl.Interleaved2Of5");
82         registerBarcodeClass("interleaved2of5", "org.krysalis.barcode.impl.Interleaved2Of5");
83         registerBarcodeClass("ean-13", "org.krysalis.barcode.impl.EAN13");
84         registerBarcodeClass("ean13", "org.krysalis.barcode.impl.EAN13");
85         registerBarcodeClass("ean-8", "org.krysalis.barcode.impl.EAN8");
86         registerBarcodeClass("ean8", "org.krysalis.barcode.impl.EAN8");
87         registerBarcodeClass("upc-a", "org.krysalis.barcode.impl.UPCA");
88         registerBarcodeClass("upca", "org.krysalis.barcode.impl.UPCA");
89         registerBarcodeClass("upc-e", "org.krysalis.barcode.impl.UPCE");
90         registerBarcodeClass("upce", "org.krysalis.barcode.impl.UPCE");
91         registerBarcodeClass("postnet", "org.krysalis.barcode.impl.POSTNET");
92     }
93
94     /**
95      * Registers a barcode implementation.
96      * @param name short name to use as a key
97      * @param classname fully qualified classname
98      */
99     public void registerBarcodeClass(String JavaDoc name, String JavaDoc classname) {
100         if (this.classes == null) {
101             this.classes = new java.util.HashMap JavaDoc();
102         }
103         this.classes.put(name.toLowerCase(), classname);
104     }
105
106     /**
107      * @see org.krysalis.barcode.BarcodeClassResolver#resolve(String)
108      */
109     public Class JavaDoc resolve(String JavaDoc name) throws ClassNotFoundException JavaDoc {
110         String JavaDoc clazz = null;
111         if (this.classes != null) {
112             clazz = (String JavaDoc)this.classes.get(name.toLowerCase());
113         }
114         if (clazz == null) {
115             clazz = name;
116         }
117         Class JavaDoc cl = Class.forName(clazz);
118         return cl;
119     }
120
121 }
122
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