-
Notifications
You must be signed in to change notification settings - Fork 27
/
Transformers.java
206 lines (183 loc) · 5.92 KB
/
Transformers.java
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
/*
* Copyright (c) 2013-2023, xembly.org
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the xembly.org nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.xembly;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerFactory;
/**
* Transformer factory.
* @since 0.30
*/
public interface Transformers {
/**
* Create transformer.
* @return Transformer.
*/
Transformer create();
/**
* Transformer factory that omits XML declaration.
* @since 0.30
*/
final class Node implements Transformers {
/**
* Original transformer factory.
*/
private final Transformers original;
/**
* Default ctor.
* @since 0.30
*/
public Node() {
this.original = new Formatted(
new Default(),
Collections.singletonMap(OutputKeys.OMIT_XML_DECLARATION, "yes")
);
}
@Override
public Transformer create() {
return this.original.create();
}
}
/**
* Transformer factory that produces document transformers.
* All transformers produced by this factory will be configured to produce
* XML documents with XML declaration and indentation.
* @since 0.30
*/
final class Document implements Transformers {
/**
* Original transformer factory.
*/
private final Transformers original;
/**
* Default ctor.
* @since 0.30
*/
public Document() {
this.original = new Formatted(
new Default(),
Document.defaultProperties()
);
}
@Override
public Transformer create() {
return this.original.create();
}
/**
* Default properties prestructor.
* @return Properties to configure the output.
*/
private static Map<String, String> defaultProperties() {
final Map<String, String> res = new HashMap<>();
res.put(OutputKeys.INDENT, "yes");
res.put(OutputKeys.ENCODING, "UTF-8");
return res;
}
}
/**
* Default transformer factory.
* @since 0.30
*/
final class Default implements Transformers {
/**
* Default transformer factory.
*/
private static TransformerFactory tfactory = TransformerFactory.newInstance();
/**
* Transformer factory.
*/
private final TransformerFactory factory;
/**
* Default ctor.
* @since 0.30
*/
Default() {
this(Default.tfactory);
}
/**
* Ctor.
* @param factory Transformer factory.
* @since 0.30
*/
private Default(final TransformerFactory factory) {
this.factory = factory;
}
@Override
public Transformer create() {
try {
return this.factory.newTransformer();
} catch (final TransformerConfigurationException ex) {
throw new IllegalStateException(
String.format(
"Failed to create new Transformer at %s",
this.factory.getClass().getCanonicalName()
),
ex
);
}
}
}
/**
* Transformer factory that produces formatted transformers.
* @since 0.30
*/
final class Formatted implements Transformers {
/**
* Original transformer factory.
*/
private final Transformers original;
/**
* Properties to configure the output.
*/
private final Map<String, String> properties;
/**
* Ctor.
* @param original Original transformer factory.
* @param properties Properties to configure the output.
*/
Formatted(
final Transformers original,
final Map<String, String> properties
) {
this.original = original;
this.properties = properties;
}
@Override
public Transformer create() {
final Transformer transformer = this.original.create();
this.properties.forEach(transformer::setOutputProperty);
return transformer;
}
}
}