1 /*
2 * Copyright 2015 the original author or authors.
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.openehealth.ipf.commons.xml;
17
18 import javax.xml.bind.JAXBContext;
19 import javax.xml.bind.JAXBException;
20 import javax.xml.bind.util.JAXBResult;
21 import javax.xml.transform.Result;
22
23 /**
24 * @author Dmytro Rud
25 */
26 abstract public class JaxbResultHolder<T> implements ResultHolder<T> {
27 private final JAXBContext jaxbContext;
28
29 private JAXBResult result;
30
31 /**
32 * @param clazz
33 * Target class for unmarshalling via JAXB.
34 */
35 public JaxbResultHolder(Class<T> clazz) {
36 try {
37 jaxbContext = JAXBContext.newInstance(clazz);
38 } catch (JAXBException e) {
39 throw new RuntimeException(e);
40 }
41 }
42
43 @Override
44 public T getResult() {
45 try {
46 return (T) result.getResult();
47 } catch (JAXBException e) {
48 throw new RuntimeException(e);
49 }
50 }
51
52 @Override
53 public Result createResult() {
54 try {
55 result = new JAXBResult(jaxbContext.createUnmarshaller());
56 } catch (JAXBException e) {
57 throw new RuntimeException(e);
58 }
59 return result;
60 }
61 }