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;
018
019import java.io.IOException;
020import java.util.Collections;
021import java.util.List;
022
023import org.apache.xbean.spring.context.SpringApplicationContext;
024import org.apache.xbean.spring.context.impl.XBeanHelper;
025import org.springframework.beans.factory.support.DefaultListableBeanFactory;
026import org.springframework.beans.factory.xml.ResourceEntityResolver;
027import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
028
029/**
030 * An XBean version of the regular Spring class to provide improved XML
031 * handling.
032 * 
033 * @author James Strachan
034 * @author Dain Sundstrom
035 * @version $Id$
036 * @since 2.0
037 */
038public class XmlWebApplicationContext extends org.springframework.web.context.support.XmlWebApplicationContext implements SpringApplicationContext {
039    private final List xmlPreprocessors;
040
041    /**
042     * Creates a XmlWebApplicationContext which loads the configuration from the a web application context.
043     */
044    public XmlWebApplicationContext() {
045        this.xmlPreprocessors = Collections.EMPTY_LIST;
046    }
047
048    /**
049     * Creates a XmlWebApplicationContext which loads the configuration from the a web application context.
050     * @param xmlPreprocessors the SpringXmlPreprocessors to apply before passing the xml to Spring for processing
051     */
052    public XmlWebApplicationContext(List xmlPreprocessors) {
053        this.xmlPreprocessors = xmlPreprocessors;
054    }
055
056    /**
057     * {@inheritDoc}
058     */
059    protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory) throws IOException {
060        // Create a new XmlBeanDefinitionReader for the given BeanFactory.
061        XmlBeanDefinitionReader beanDefinitionReader = XBeanHelper.createBeanDefinitionReader(this, beanFactory, xmlPreprocessors);
062
063        // Configure the bean definition reader with this context's
064        // resource loading environment.
065        beanDefinitionReader.setResourceLoader(this);
066        beanDefinitionReader.setEntityResolver(new ResourceEntityResolver(this));
067
068        // Allow a subclass to provide custom initialization of the reader,
069        // then proceed with actually loading the bean definitions.
070        initBeanDefinitionReader(beanDefinitionReader);
071        loadBeanDefinitions(beanDefinitionReader);
072    }
073    
074}