/*

  * $Id: ServletContextAdapter.java 1058093 2011-01-12 11:49:02Z apetrelli $

  *

  * 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.tiles.web.util;

 import java.io.InputStream;

 import java.net.MalformedURLException;

 import java.net.URL;

 import java.util.Enumeration;

 import java.util.Hashtable;

 import java.util.Set;

 import javax.servlet.RequestDispatcher;

 import javax.servlet.Servlet;

 import javax.servlet.ServletConfig;

 import javax.servlet.ServletContext;

 import javax.servlet.ServletException;

 /**

  * Adapts a servlet config and a servlet context to become a unique servlet

  * context.

  *

  * @version $Rev: 1058093 $ $Date: 2011-01-12 22:49:02 +1100 (Wed, 12 Jan 2011) $

  */

 @SuppressWarnings("deprecation")

 public class ServletContextAdapter implements ServletContext {

     /**

      * The root context to use.

      */

     private ServletContext rootContext;

     /**

      * The union of init parameters of {@link ServletConfig} and

      * {@link ServletContext}.

      */

     private Hashtable<String, String> initParameters;

     /**

      * Constructor.

      *

      * @param config The servlet configuration object.

      */

     @SuppressWarnings("unchecked")

     public ServletContextAdapter(ServletConfig config) {

         this.rootContext = config.getServletContext();

         initParameters = new Hashtable<String, String>();

         Enumeration<String> enumeration = rootContext

                 .getInitParameterNames();

         while (enumeration.hasMoreElements()) {

             String paramName = enumeration.nextElement();

             initParameters.put(paramName, rootContext

                     .getInitParameter(paramName));

         }

         enumeration = config.getInitParameterNames();

         while (enumeration.hasMoreElements()) {

             String paramName = enumeration.nextElement();

             initParameters.put(paramName, config.getInitParameter(paramName));

         }

     }

     /** {@inheritDoc} */

     public ServletContext getContext(String string) {

         return rootContext.getContext(string);

     }

     /** {@inheritDoc} */

     public int getMajorVersion() {

         return rootContext.getMajorVersion();

     }

     /** {@inheritDoc} */

     public int getMinorVersion() {

         return rootContext.getMinorVersion();

     }

     /** {@inheritDoc} */

     public String getMimeType(String string) {

         return rootContext.getMimeType(string);

     }

     /** {@inheritDoc} */

     @SuppressWarnings({ "rawtypes" })

     public Set getResourcePaths(String string) {

         return rootContext.getResourcePaths(string);

     }

     /** {@inheritDoc} */

     public URL getResource(String string) throws MalformedURLException {

         return rootContext.getResource(string);

     }

     /** {@inheritDoc} */

     public InputStream getResourceAsStream(String string) {

         return rootContext.getResourceAsStream(string);

     }

     /** {@inheritDoc} */

     public RequestDispatcher getRequestDispatcher(String string) {

         return rootContext.getRequestDispatcher(string);

     }

     /** {@inheritDoc} */

     public RequestDispatcher getNamedDispatcher(String string) {

         return rootContext.getNamedDispatcher(string);

     }

     /** {@inheritDoc} */

     public Servlet getServlet(String string) throws ServletException {

         return rootContext.getServlet(string);

     }

     /** {@inheritDoc} */

     @SuppressWarnings("rawtypes")

     public Enumeration getServlets() {

         return rootContext.getServlets();  //To change body of implemented methods use File | Settings | File Templates.

     }

     /** {@inheritDoc} */

     @SuppressWarnings("rawtypes")

     public Enumeration getServletNames() {

         return rootContext.getServletNames();

     }

     /** {@inheritDoc} */

     public void log(String string) {

         rootContext.log(string);

     }

     /** {@inheritDoc} */

     public void log(Exception exception, String string) {

         rootContext.log(exception, string);

     }

     /** {@inheritDoc} */

     public void log(String string, Throwable throwable) {

         rootContext.log(string, throwable);

     }

     /** {@inheritDoc} */

     public String getRealPath(String string) {

         return rootContext.getRealPath(string);

     }

     /** {@inheritDoc} */

     public String getServerInfo() {

         return rootContext.getServerInfo();

     }

     /** {@inheritDoc} */

     public String getInitParameter(String string) {

         return initParameters.get(string);

     }

     /** {@inheritDoc} */

     @SuppressWarnings("rawtypes")

     public Enumeration getInitParameterNames() {

         return initParameters.keys();

     }

     /** {@inheritDoc} */

     public Object getAttribute(String string) {

         return rootContext.getAttribute(string);

     }

     /** {@inheritDoc} */

     @SuppressWarnings("rawtypes")

     public Enumeration getAttributeNames() {

         return rootContext.getAttributeNames();

     }

     /** {@inheritDoc} */

     public void setAttribute(String string, Object object) {

         rootContext.setAttribute(string, object);

     }

     /** {@inheritDoc} */

     public void removeAttribute(String string) {

         rootContext.removeAttribute(string);

     }

     /** {@inheritDoc} */

     public String getServletContextName() {

         return rootContext.getServletContextName();

     }

     /** {@inheritDoc} */

     public String getContextPath() {

         return rootContext.getContextPath();

     }

 }