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Java > Open Source Codes > org > krysalis > barcode > tools > MimeTypes


1 /*
2  * $Id: MimeTypes.java,v 1.5 2003/10/28 17:09:11 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.tools;
59
60 /**
61  * Defines MIME types used in Krysalis Barcode.
62  *
63  * @author Jeremias Maerki
64  */
65 public class MimeTypes {
66
67     /** SVG MIME type: image/svg+xml */
68     public static final String JavaDoc MIME_SVG = "image/svg+xml";
69     /** EPS MIME type: image/x-eps */
70     public static final String JavaDoc MIME_EPS = "image/x-eps";
71     /** TIFF MIME type: image/tiff */
72     public static final String JavaDoc MIME_TIFF = "image/tiff";
73     /** JPEG MIME type: image/jpeg */
74     public static final String JavaDoc MIME_JPEG = "image/jpeg";
75     /** PNG MIME type: image/x-png */
76     public static final String JavaDoc MIME_PNG = "image/x-png";
77     /** GIF MIME type: image/gif */
78     public static final String JavaDoc MIME_GIF = "image/gif";
79
80     private static final String JavaDoc[][] FORMAT_MAPPINGS =
81             {{"svg", MIME_SVG},
82              {"eps", MIME_EPS},
83              {"image/eps", MIME_EPS},
84              {"tif", MIME_TIFF},
85              {"tiff", MIME_TIFF},
86              {"jpg", MIME_JPEG},
87              {"jpeg", MIME_JPEG},
88              {"png", MIME_PNG},
89              {"image/png", MIME_PNG},
90              {"gif", MIME_GIF}};
91
92     /**
93      * Utility class: Constructor prevents instantiating when subclassed.
94      */
95     protected MimeTypes() {
96         throw new UnsupportedOperationException JavaDoc();
97     }
98     
99     /**
100      * Converts a short format name, such as "svg" or "eps", to its MIME type,
101      * if necessary. Known and unknown MIME types are passed through.
102      * @param format short format name or MIME type
103      * @return MIME type
104      */
105     public static String JavaDoc expandFormat(String JavaDoc format) {
106         if (format == null || format.length() == 0) {
107             return null;
108         }
109         for (int i = 0; i < FORMAT_MAPPINGS.length; i++) {
110             if (format.equalsIgnoreCase(FORMAT_MAPPINGS[i][0])
111                 || format.equals(FORMAT_MAPPINGS[i][1])) {
112                 return FORMAT_MAPPINGS[i][1];
113             }
114         }
115         return format.toLowerCase();
116     }
117
118     /**
119      * Indicates whether a format is a bitmap format.
120      * @param format short format name or MIME type
121      * @return true if format is a bitmap format
122      */
123     public static boolean isBitmapFormat(String JavaDoc format) {
124         String JavaDoc fmt = expandFormat(format);
125         if (fmt == null) {
126             return false;
127         }
128         return (fmt.equals(MIME_JPEG)
129             || fmt.equals(MIME_TIFF)
130             || fmt.equals(MIME_PNG)
131             || fmt.equals(MIME_GIF));
132     }
133
134 }
135
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