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Java > Open Source Codes > org > enhydra > xml > xmlc > metadata > DocumentFormat


1 /*
2  * Enhydra Java Application Server Project
3  *
4  * The contents of this file are subject to the Enhydra Public License
5  * Version 1.1 (the "License"); you may not use this file except in
6  * compliance with the License. You may obtain a copy of the License on
7  * the Enhydra web site ( http://www.enhydra.org/ ).
8  *
9  * Software distributed under the License is distributed on an "AS IS"
10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11  * the License for the specific terms governing rights and limitations
12  * under the License.
13  *
14  * The Initial Developer of the Enhydra Application Server is Lutris
15  * Technologies, Inc. The Enhydra Application Server and portions created
16  * by Lutris Technologies, Inc. are Copyright Lutris Technologies, Inc.
17  * All Rights Reserved.
18  *
19  * Contributor(s):
20  *
21  * $Id: DocumentFormat.java,v 1.1.1.1 2003/03/10 16:36:23 taweili Exp $
22  */
23
24 package org.enhydra.xml.xmlc.metadata;
25
26 /**
27  * Enumerated type for the format of a document (HTML or XML).
28  */
29 public class DocumentFormat extends EnumeratedType {
30     /**
31      * Constant for a XML document.
32      */
33     public static final DocumentFormat XML = new DocumentFormat("xml");
34
35     /**
36      * Constant for a HTML document.
37      */
38     public static final DocumentFormat HTML = new DocumentFormat("html");
39
40     /**
41      * Constant for an unspecified document type.
42      */
43     public static final DocumentFormat UNSPECIFIED = new DocumentFormat("unspecified");
44
45     /**
46      * Internal constructor. Only a fixed set of types are allowed.
47      */
48     private DocumentFormat(String JavaDoc name) {
49         super(name);
50     }
51
52     /**
53      * Get the object for the specified type. If desiredType is null,
54      * return UNSPECIFIED.
55      */
56     public static DocumentFormat getType(String JavaDoc desiredType) {
57         if (desiredType == null) {
58             return UNSPECIFIED;
59         } else if (XML.fName.equals(desiredType)) {
60             return XML;
61         } else if (HTML.fName.equals(desiredType)) {
62             return HTML;
63         } else if (UNSPECIFIED.fName.equals(desiredType)) {
64             return UNSPECIFIED;
65         } else {
66             throw new IllegalArgumentException JavaDoc("Invalid DocumentFormat: \""
67                                                + desiredType
68                                                + "\", expected of \""
69                                                + XML.fName + "\", \""
70                                                + HTML.fName + "\", or \""
71                                                + UNSPECIFIED.fName + "\"");
72         }
73     }
74 }
75
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