com.bekk.boss.pluto.embedded.jetty.util.OverrideContextLoaderListener.java Source code

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Here is the source code for com.bekk.boss.pluto.embedded.jetty.util.OverrideContextLoaderListener.java

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/* $Id$
 * 
 * Copyright 2007 BEKK Consulting
 * 
 * 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 com.bekk.boss.pluto.embedded.jetty.util;

import java.util.ArrayList;
import java.util.EventListener;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.mortbay.jetty.handler.ContextHandler;
import org.mortbay.jetty.servlet.Context.SContext;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.ContextLoaderListener;

public class OverrideContextLoaderListener implements ServletContextListener {

    private ContextLoaderListener contextLoaderListener;

    private static final String PLUTO_SERVICE_CONFIG_LOCATION = "classpath:pluto-portal-driver-services-config.xml";

    public OverrideContextLoaderListener() {
        this.contextLoaderListener = new ContextLoaderListener();
    }

    public void contextDestroyed(ServletContextEvent sce) {
        this.contextLoaderListener.contextDestroyed(sce);
    }

    public void contextInitialized(ServletContextEvent sce) {
        SContext servletContext = (SContext) sce.getServletContext();
        ContextHandler contextHandler = servletContext.getContextHandler();
        Map initParams = contextHandler.getInitParams();
        String configLocations = (String) initParams.get(ContextLoader.CONFIG_LOCATION_PARAM);
        if (configLocations != null) {
            configLocations = configLocations + " " + PLUTO_SERVICE_CONFIG_LOCATION;
            initParams.put(ContextLoader.CONFIG_LOCATION_PARAM, configLocations);
        } else {
            initParams.put(ContextLoader.CONFIG_LOCATION_PARAM, PLUTO_SERVICE_CONFIG_LOCATION);
        }
        // Traverse listeners to see if there's a configured
        // ContextLoaderListener
        EventListener[] listeners = contextHandler.getEventListeners();
        if (listeners != null) {
            List newListenerList = new ArrayList();
            for (int i = 0; i < listeners.length; i++) {
                EventListener listener = listeners[i];
                if (!(listener instanceof ContextLoaderListener)) {
                    newListenerList.add(listener);
                }
            }
            contextHandler.setEventListeners(
                    (EventListener[]) newListenerList.toArray(new EventListener[newListenerList.size()]));
        }
        contextLoaderListener.contextInitialized(sce);
    }

}