1 /* ***************************************************************************
2 * Copyright (c) 2008 Brabenetz Harald, Austria.
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 *****************************************************************************/
17
18 package org.settings4j.helper.spring;
19
20 import org.springframework.context.support.AbstractApplicationContext;
21 import org.springframework.context.support.AbstractXmlApplicationContext;
22 import org.springframework.core.io.ByteArrayResource;
23 import org.springframework.core.io.Resource;
24
25 /**
26 * A SpringFramework Application Context which can process a spring-XML Content from byte[] as input.
27 *
28 * @author Harald.Brabenetz
29 */
30 public class ByteArrayXMLApplicationContext extends AbstractXmlApplicationContext {
31
32 private final Resource[] configResources;
33
34 /**
35 * Static method to get a single Bean from a Spring Configuration XML.
36 *
37 * @param content The Spring configuration XML as byte[].
38 * @param beanName The bean name/identifier.
39 * @return The Bean-Object or <code>null</code>.
40 */
41 public static Object getBean(final byte[] content, final String beanName) {
42
43 final AbstractApplicationContext context = new ByteArrayXMLApplicationContext(content);
44 context.refresh();
45
46 final Object result = context.getBean(beanName);
47 context.close();
48 return result;
49 }
50
51 /**
52 * @param content The Spring configuration XML as byte[].
53 */
54 public ByteArrayXMLApplicationContext(final byte[] content) {
55 super();
56 configResources = new Resource[1];
57 configResources[0] = new ByteArrayResource(content);
58 }
59
60 @Override
61 protected Resource[] getConfigResources() {
62 return configResources;
63 }
64 }