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Java > Open Source Codes > org > pdfbox > encoding > EncodingManager


1 /**
2  * Copyright (c) 2003, www.pdfbox.org
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. Neither the name of pdfbox; nor the names of its
14  * contributors may be used to endorse or promote products derived from this
15  * software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * http://www.pdfbox.org
29  *
30  */
31 package org.pdfbox.encoding;
32
33 import java.io.IOException JavaDoc;
34
35 import java.util.HashMap JavaDoc;
36 import java.util.Map JavaDoc;
37
38 import org.pdfbox.cos.COSName;
39
40 /**
41  * This class will handle getting the appropriate encodings.
42  *
43  * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
44  * @version $Revision: 1.9 $
45  */
46 public class EncodingManager
47 {
48     private static final Map JavaDoc ENCODINGS = new HashMap JavaDoc();
49
50     static
51     {
52         ENCODINGS.put( COSName.MAC_ROMAN_ENCODING, new MacRomanEncoding() );
53         ENCODINGS.put( COSName.PDF_DOC_ENCODING, new PdfDocEncoding() );
54         ENCODINGS.put( COSName.STANDARD_ENCODING, new StandardEncoding() );
55         ENCODINGS.put( COSName.WIN_ANSI_ENCODING, new WinAnsiEncoding() );
56     }
57
58     /**
59      * This will get the standard encoding.
60      *
61      * @return The standard encoding.
62      */
63     public Encoding getStandardEncoding()
64     {
65         return (Encoding)ENCODINGS.get( COSName.STANDARD_ENCODING );
66     }
67
68     /**
69      * This will get an encoding by name.
70      *
71      * @param name The name of the encoding to get.
72      *
73      * @return The encoding that matches the name.
74      *
75      * @throws IOException If there is not encoding with that name.
76      */
77     public Encoding getEncoding( COSName name ) throws IOException JavaDoc
78     {
79         Encoding encoding = (Encoding)ENCODINGS.get( name );
80         if( encoding == null )
81         {
82             throw new IOException JavaDoc( "Unknown encoding for '" + name.getName() + "'" );
83         }
84         return encoding;
85     }
86 }
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