1 /***
2 * Copyright 2004 The Apache Software Foundation.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.commons.jelly.tags.jaxme;
17
18 import java.io.File;
19 import java.io.IOException;
20 import java.io.StringWriter;
21
22 import javax.xml.bind.JAXBContext;
23 import javax.xml.bind.JAXBException;
24 import javax.xml.bind.Marshaller;
25
26 import org.apache.commons.jelly.TagSupport;
27 import org.apache.commons.jelly.XMLOutput;
28 import org.apache.commons.jelly.MissingAttributeException;
29 import org.apache.commons.jelly.JellyTagException;
30
31 import org.xml.sax.SAXException;
32
33 /***
34 * <p>Marshalls a generated object generated by a JAXB implementation into xml.</p>
35 * <p>
36 * The result is placed into the processed content for further processing by enclosing
37 * tags.</p>
38 *
39 * @author <a href="mailto:joe@ispsoft.de">Jochen Wiedmann</a>
40 * @author <a href="mailto:commons-dev at jakarta.apache.org">Apache Commons Development Team</a>
41 * @version $Revision: 155420 $
42 */
43 public class MarshallTag extends TagSupport {
44
45 private String packages;
46 private Object object;
47
48 public String getPackages() {
49 return packages;
50 }
51
52 /***
53 * Defines the generated objects which will be marshalled by specifying the package name.
54 */
55 public void setPackages(String packages) {
56 this.packages = packages;
57 }
58
59 public Object getObject() {
60 return object;
61 }
62
63 /***
64 * Defines the object to be unmarshalled into xml by specifying a jelly variable name.
65 */
66 public void setObject(Object object) {
67 this.object = object;
68 }
69
70 public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException {
71 if (packages == null) {
72 throw new MissingAttributeException( "packages" );
73 }
74 if (object == null) {
75 throw new MissingAttributeException( "object" );
76 }
77 try {
78
79 JAXBContext jaxbContext = JAXBContext.newInstance(packages);
80 Marshaller marshaller = jaxbContext.createMarshaller();
81 marshaller.marshal(object, output);
82
83 } catch (JAXBException ex) {
84 throw new JellyTagException(ex);
85 }
86 }
87 }