extscript-core-root/extscript-spring/src/main/java/org/apache/myfaces/extensions/scripting/spring/context/CompilationAwareContextLoader.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.myfaces.extensions.scripting.spring.context;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextException;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;

import javax.servlet.ServletContext;

/**
 * @author Werner Punz (latest modification by $Author$)
 * @version $Revision$ $Date$
 */

public class CompilationAwareContextLoader extends ContextLoader
{
    private static final String INITIALIZED = "CompilationAwareContextLoaderInit";

    @Override
    protected WebApplicationContext createWebApplicationContext(
            ServletContext servletContext, ApplicationContext parent) throws BeansException
    {
        ConfigurableWebApplicationContext wac = new CompilationAwareXmlWebApplicationContext();

        wac.setParent(parent);
        wac.setServletContext(servletContext);
        wac.setConfigLocation(servletContext.getInitParameter(CONFIG_LOCATION_PARAM));
        customizeContext(servletContext, wac);
        wac.refresh();

        //we now init the scripting system

        Class contextClass = determineContextClass(servletContext);
        if (!ConfigurableWebApplicationContext.class.isAssignableFrom(contextClass))
        {
            throw new ApplicationContextException("Custom context class [" + contextClass.getName() +
                    "] is not of type [" + ConfigurableWebApplicationContext.class.getName() + "]");
        }

        return wac;
    }

    @Override
    public void closeWebApplicationContext(ServletContext servletContext)
    {
        super.closeWebApplicationContext(servletContext);
    }

}