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JAXBSupport.java | 0% | 0% | 0% | 0% |
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1 | /* | |
2 | * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | |
3 | * | |
4 | * This software is open source. | |
5 | * See the bottom of this file for the licence. | |
6 | * | |
7 | * $Id: JAXBSupport.java,v 1.1 2004/08/02 18:44:08 maartenc Exp $ | |
8 | */ | |
9 | ||
10 | package org.dom4j.jaxb; | |
11 | ||
12 | import java.io.StringReader; | |
13 | ||
14 | import javax.xml.bind.JAXBContext; | |
15 | import javax.xml.bind.JAXBException; | |
16 | import javax.xml.bind.Marshaller; | |
17 | import javax.xml.bind.Unmarshaller; | |
18 | import javax.xml.transform.Source; | |
19 | import javax.xml.transform.stream.StreamSource; | |
20 | ||
21 | import org.dom4j.dom.DOMDocument; | |
22 | ||
23 | /** | |
24 | * @author Wonne Keysers (Realsoftware.be) | |
25 | */ | |
26 | abstract class JAXBSupport { | |
27 | ||
28 | private String contextPath; | |
29 | private ClassLoader classloader; | |
30 | ||
31 | private JAXBContext jaxbContext; | |
32 | private Marshaller marshaller; | |
33 | private Unmarshaller unmarshaller; | |
34 | ||
35 | 0 | public JAXBSupport(String contextPath) { |
36 | 0 | this.contextPath = contextPath; |
37 | } | |
38 | ||
39 | 0 | public JAXBSupport(String contextPath, ClassLoader classloader) { |
40 | 0 | this.contextPath = contextPath; |
41 | 0 | this.classloader = classloader; |
42 | } | |
43 | ||
44 | /** | |
45 | * Marshals the given {@link javax.xml.bind.Element} in to its DOM4J counterpart. | |
46 | * | |
47 | * @param element JAXB Element to be marshalled | |
48 | * @return the marshalled DOM4J {@link org.dom4j.Element} | |
49 | * @throws JAXBException when an error occurs | |
50 | */ | |
51 | 0 | protected org.dom4j.Element marshal(javax.xml.bind.Element element) throws JAXBException { |
52 | 0 | Marshaller marshaller = getMarshaller(); |
53 | ||
54 | 0 | DOMDocument doc = new DOMDocument(); |
55 | 0 | marshaller.marshal(element, doc); |
56 | ||
57 | 0 | return doc.getRootElement(); |
58 | } | |
59 | ||
60 | /** | |
61 | * Unmarshalls the specified DOM4J {@link org.dom4j.Element} into a {@link javax.xml.bind.Element} | |
62 | * @param element the DOM4J element to unmarshall | |
63 | * @return the unmarshalled JAXB object | |
64 | * @throws JAXBException when an error occurs | |
65 | 0 | */protected javax.xml.bind.Element unmarshal(org.dom4j.Element element) throws JAXBException { |
66 | 0 | Unmarshaller unmarshaller = getUnmarshaller(); |
67 | ||
68 | 0 | Source source = new StreamSource(new StringReader(element.asXML())); |
69 | ||
70 | 0 | return (javax.xml.bind.Element) unmarshaller.unmarshal(source); |
71 | } | |
72 | ||
73 | 0 | private Marshaller getMarshaller() throws JAXBException { |
74 | 0 | if (marshaller == null) { |
75 | 0 | marshaller = getContext().createMarshaller(); |
76 | } | |
77 | 0 | return marshaller; |
78 | } | |
79 | ||
80 | 0 | private Unmarshaller getUnmarshaller() throws JAXBException { |
81 | 0 | if (unmarshaller == null) { |
82 | 0 | unmarshaller = getContext().createUnmarshaller(); |
83 | } | |
84 | 0 | return unmarshaller; |
85 | } | |
86 | ||
87 | 0 | private JAXBContext getContext() throws JAXBException { |
88 | 0 | if (jaxbContext == null) { |
89 | 0 | if (classloader == null) { |
90 | 0 | jaxbContext = JAXBContext.newInstance(contextPath); |
91 | } | |
92 | else { | |
93 | 0 | jaxbContext = JAXBContext.newInstance(contextPath, classloader); |
94 | } | |
95 | } | |
96 | 0 | return jaxbContext; |
97 | } | |
98 | ||
99 | } | |
100 | ||
101 | ||
102 | ||
103 | ||
104 | /* | |
105 | * Redistribution and use of this software and associated documentation | |
106 | * ("Software"), with or without modification, are permitted provided | |
107 | * that the following conditions are met: | |
108 | * | |
109 | * 1. Redistributions of source code must retain copyright | |
110 | * statements and notices. Redistributions must also contain a | |
111 | * copy of this document. | |
112 | * | |
113 | * 2. Redistributions in binary form must reproduce the | |
114 | * above copyright notice, this list of conditions and the | |
115 | * following disclaimer in the documentation and/or other | |
116 | * materials provided with the distribution. | |
117 | * | |
118 | * 3. The name "DOM4J" must not be used to endorse or promote | |
119 | * products derived from this Software without prior written | |
120 | * permission of MetaStuff, Ltd. For written permission, | |
121 | * please contact dom4j-info@metastuff.com. | |
122 | * | |
123 | * 4. Products derived from this Software may not be called "DOM4J" | |
124 | * nor may "DOM4J" appear in their names without prior written | |
125 | * permission of MetaStuff, Ltd. DOM4J is a registered | |
126 | * trademark of MetaStuff, Ltd. | |
127 | * | |
128 | * 5. Due credit should be given to the DOM4J Project - | |
129 | * http://www.dom4j.org | |
130 | * | |
131 | * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS | |
132 | * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT | |
133 | * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
134 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
135 | * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
136 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
137 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
138 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
139 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
140 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
141 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
142 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
143 | * | |
144 | * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | |
145 | * | |
146 | * $Id: JAXBSupport.java,v 1.1 2004/08/02 18:44:08 maartenc Exp $ | |
147 | */ |
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