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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.xbean.spring.context.impl;
18  
19  import java.lang.reflect.Constructor;
20  import java.util.List;
21  
22  import org.apache.xbean.spring.context.SpringApplicationContext;
23  import org.springframework.beans.factory.support.BeanDefinitionRegistry;
24  import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
25  
26  public class XBeanHelper {
27  
28      public static XmlBeanDefinitionReader createBeanDefinitionReader(
29                      SpringApplicationContext applicationContext,
30                      BeanDefinitionRegistry registry,
31                      List xmlPreprocessors) {
32          
33          String version = "2.0";
34          
35          try {
36              Class spring20Clazz = Class.forName("org.springframework.core.AttributeAccessorSupport");
37              version = "2.0";
38          } catch(ClassNotFoundException e) {
39              version = "1.2.8";
40          }
41          
42          String className = "org.apache.xbean.spring.context.v" + version.charAt(0) + ".XBeanXmlBeanDefinitionReader";
43          try {
44              Class cl = Class.forName(className);
45              Constructor cstr = cl.getConstructor(new Class[] { SpringApplicationContext.class, BeanDefinitionRegistry.class, List.class });
46              return (XmlBeanDefinitionReader) cstr.newInstance(new Object[] { applicationContext, registry, xmlPreprocessors });
47          } catch (Exception e) {
48              throw (IllegalStateException) new IllegalStateException("Could not find valid implementation for: " + version).initCause(e);
49          }
50      }
51  }