net.jawr.web.bundle.processor.spring.SpringControllerBundleProcessor.java Source code

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Here is the source code for net.jawr.web.bundle.processor.spring.SpringControllerBundleProcessor.java

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/**
 * Copyright 2010 Ibrahim Chaehoi
 * 
 * Licensed 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 net.jawr.web.bundle.processor.spring;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import net.jawr.web.bundle.processor.ServletDefinition;
import net.jawr.web.servlet.JawrSpringController;
import net.jawr.web.servlet.mock.MockServletConfig;
import net.jawr.web.servlet.mock.spring.MockJawrSpringServlet;

import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;

/**
 * This class manage the initialization of JawrSpringController.
 * 
 * @author Ibrahim Chaehoi
 *
 */
public class SpringControllerBundleProcessor {

    /** The name of the spring servlet */
    private static final String SPRING_DISPATCHER_SERVLET = "SpringDispatcherServlet";

    /**
     * Initialize the servlets which will handle the request to the JawrSpringController 
     * @param servletContext the servlet context
     * @return the list of servlet definition for the JawrSpringControllers
     * @throws ServletException if a servlet exception occurs
     */
    @SuppressWarnings("rawtypes")
    public List<ServletDefinition> initJawrSpringServlets(ServletContext servletContext) throws ServletException {

        List<ServletDefinition> jawrServletDefinitions = new ArrayList<ServletDefinition>();
        ContextLoader contextLoader = new ContextLoader();
        WebApplicationContext applicationCtx = contextLoader.initWebApplicationContext(servletContext);
        Map<?, ?> jawrControllersMap = applicationCtx.getBeansOfType(JawrSpringController.class);

        Iterator<?> entrySetIterator = jawrControllersMap.entrySet().iterator();
        while (entrySetIterator.hasNext()) {

            JawrSpringController jawrController = (JawrSpringController) ((Map.Entry) entrySetIterator.next())
                    .getValue();
            Map<String, Object> initParams = new HashMap<String, Object>();
            initParams.putAll(jawrController.getInitParams());
            ServletConfig servletConfig = new MockServletConfig(SPRING_DISPATCHER_SERVLET, servletContext,
                    initParams);
            MockJawrSpringServlet servlet = new MockJawrSpringServlet(jawrController, servletConfig);
            ServletDefinition servletDefinition = new ServletDefinition(servlet, servletConfig);
            jawrServletDefinitions.add(servletDefinition);
        }

        contextLoader.closeWebApplicationContext(servletContext);
        return jawrServletDefinitions;
    }
}