001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.xbean.spring.context.impl;
018
019import java.lang.reflect.Constructor;
020import java.util.List;
021
022import org.apache.xbean.spring.context.SpringApplicationContext;
023import org.springframework.beans.factory.support.BeanDefinitionRegistry;
024import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
025
026public class XBeanHelper {
027
028    public static XmlBeanDefinitionReader createBeanDefinitionReader(
029                    SpringApplicationContext applicationContext,
030                    BeanDefinitionRegistry registry,
031                    List xmlPreprocessors) {
032        
033        String version = "2.0";
034        
035        try {
036            Class spring20Clazz = Class.forName("org.springframework.core.AttributeAccessorSupport");
037            version = "2.0";
038        } catch(ClassNotFoundException e) {
039            version = "1.2.8";
040        }
041        
042        String className = "org.apache.xbean.spring.context.v" + version.charAt(0) + ".XBeanXmlBeanDefinitionReader";
043        try {
044            Class cl = Class.forName(className);
045            Constructor cstr = cl.getConstructor(new Class[] { SpringApplicationContext.class, BeanDefinitionRegistry.class, List.class });
046            return (XmlBeanDefinitionReader) cstr.newInstance(new Object[] { applicationContext, registry, xmlPreprocessors });
047        } catch (Exception e) {
048            throw (IllegalStateException) new IllegalStateException("Could not find valid implementation for: " + version).initCause(e);
049        }
050    }
051}