1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package org.openoffice.xmerge;
import org.openoffice.xmerge.util.registry.ConverterInfo;
import org.openoffice.xmerge.util.registry.ConverterInfoMgr;
/**
* Factory that provides access to <code>Convert</code> objects, which
* are used to do a conversion. The <code>ConvertFactory</code> does
* this via the <code>ConvertInfoMgr</code> which maintains a list of
* which <code>Convert</code> objects are available and their
* capabilities.
*
* @see Convert
* @see org.openoffice.xmerge.util.registry.ConverterInfoMgr
*
*/
public class ConverterFactory {
/**
* Confirms whether or not a particular conversion can be done
* based on the Mime types of the files to be converted to and
* from.
*
* @param mimeTypeIn The mime input type.
* @param mimeTypeOut The mime output type.
*
* @return true if the conversion is possible, false otherwise.
*/
public boolean canConvert(String mimeTypeIn, String mimeTypeOut) {
ConverterInfo foundInfo = null;
// findConverterInfo expects the second paramenter to be the
// destination MimeType
if (ConverterInfo.isValidOfficeType(mimeTypeOut))
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeIn, mimeTypeOut);
else
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeOut, mimeTypeIn);
return foundInfo != null;
}
/**
* Returns the <code>Convert</code> object that converts
* the specified device/office mime type conversion. If there
* are multiple <code>Converter</code> objects registered
* that support this conversion, only the first is returned.
*
* @param mimeTypeIn The mime input type.
* @param mimeTypeOut The mime output type.
*
* @return The first <code>Convert</code> object that supports
* the specified conversion.
*/
public Convert getConverter(String mimeTypeIn, String mimeTypeOut) {
ConverterInfo foundInfo = null;
boolean toOffice;
toOffice = ConverterInfo.isValidOfficeType(mimeTypeOut);
// findConverterInfo expects the second paramenter to be the
// destination MimeType
if (toOffice)
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeIn, mimeTypeOut);
else
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeOut, mimeTypeIn);
if (foundInfo != null)
return getConverter(foundInfo, toOffice);
else
return null;
}
/**
* Returns the <code>Convert</code> object that is described
* by the <code>ConverterInfo</code> parameter.
*
* @param ci The <code>ConverterInfo</code> describing the converter.
*
* @param toOffice true to convert to office, false to convert to device.
*
* @return The <code>Convert</code> object
*/
public Convert getConverter(ConverterInfo ci, boolean toOffice) {
Convert myConvert = new Convert(ci, toOffice);
return myConvert;
}
}
|
