Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DomDecor |
|
| 5.0;5 |
1 | /** | |
2 | * Copyright (c) 2012-2015, jcabi.com | |
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 | |
7 | * are met: 1) Redistributions of source code must retain the above | |
8 | * copyright notice, this list of conditions and the following | |
9 | * disclaimer. 2) Redistributions in binary form must reproduce the above | |
10 | * copyright notice, this list of conditions and the following | |
11 | * disclaimer in the documentation and/or other materials provided | |
12 | * with the distribution. 3) Neither the name of the jcabi.com nor | |
13 | * the names of its contributors may be used to endorse or promote | |
14 | * products derived from this software without specific prior written | |
15 | * permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT | |
19 | * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
20 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
22 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
26 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
28 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | */ | |
30 | package com.jcabi.log; | |
31 | ||
32 | import java.io.StringWriter; | |
33 | import java.util.Formattable; | |
34 | import java.util.Formatter; | |
35 | import javax.xml.transform.OutputKeys; | |
36 | import javax.xml.transform.Transformer; | |
37 | import javax.xml.transform.TransformerConfigurationException; | |
38 | import javax.xml.transform.TransformerException; | |
39 | import javax.xml.transform.TransformerFactory; | |
40 | import javax.xml.transform.dom.DOMSource; | |
41 | import javax.xml.transform.stream.StreamResult; | |
42 | import lombok.EqualsAndHashCode; | |
43 | import lombok.ToString; | |
44 | import org.w3c.dom.Node; | |
45 | ||
46 | /** | |
47 | * Decorates XML Document. | |
48 | * | |
49 | * @author Yegor Bugayenko (yegor@teamed.io) | |
50 | * @version $Id: b6eb80a8595551a2ae12c133ca596befda51c116 $ | |
51 | * @since 0.1 | |
52 | */ | |
53 | 0 | @ToString |
54 | 0 | @EqualsAndHashCode(of = "node") |
55 | final class DomDecor implements Formattable { | |
56 | ||
57 | /** | |
58 | * DOM transformer factory, DOM. | |
59 | */ | |
60 | 0 | private static final TransformerFactory FACTORY = |
61 | TransformerFactory.newInstance(); | |
62 | ||
63 | /** | |
64 | * The document. | |
65 | */ | |
66 | private final transient Node node; | |
67 | ||
68 | /** | |
69 | * Public ctor. | |
70 | * @param doc The document | |
71 | * @throws DecorException If some problem with it | |
72 | */ | |
73 | 0 | DomDecor(final Object doc) throws DecorException { |
74 | 0 | if (doc != null && !(doc instanceof Node)) { |
75 | 0 | throw new DecorException( |
76 | String.format( | |
77 | "Instance of org.w3c.dom.Node required, while %s provided", | |
78 | doc.getClass().getName() | |
79 | ) | |
80 | ); | |
81 | } | |
82 | 0 | this.node = (Node) doc; |
83 | 0 | } |
84 | ||
85 | /** | |
86 | * {@inheritDoc} | |
87 | * @checkstyle ParameterNumber (4 lines) | |
88 | */ | |
89 | @Override | |
90 | public void formatTo(final Formatter formatter, final int flags, | |
91 | final int width, final int precision) { | |
92 | 0 | final StringWriter writer = new StringWriter(); |
93 | 0 | if (this.node == null) { |
94 | 0 | writer.write("NULL"); |
95 | } else { | |
96 | try { | |
97 | 0 | final Transformer trans = DomDecor.FACTORY.newTransformer(); |
98 | 0 | trans.setOutputProperty(OutputKeys.INDENT, "yes"); |
99 | 0 | trans.setOutputProperty(OutputKeys.STANDALONE, "no"); |
100 | 0 | trans.transform( |
101 | new DOMSource(this.node), | |
102 | new StreamResult(writer) | |
103 | ); | |
104 | 0 | } catch (final TransformerConfigurationException ex) { |
105 | 0 | throw new IllegalStateException(ex); |
106 | 0 | } catch (final TransformerException ex) { |
107 | 0 | throw new IllegalStateException(ex); |
108 | 0 | } |
109 | } | |
110 | 0 | formatter.format("%s", writer.toString()); |
111 | 0 | } |
112 | ||
113 | } |