/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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 org.seasar.teeda.core.context.creator.servlet;

 import javax.faces.context.ExternalContext;

 import javax.faces.internal.EncodeUrlCustomizer;

 import javax.faces.internal.WindowIdEncodeUrlCustomizer;

 import javax.servlet.ServletContext;

 import javax.servlet.ServletRequest;

 import javax.servlet.ServletResponse;

 import org.seasar.teeda.core.context.creator.ExternalContextCreator;

 import org.seasar.teeda.core.context.servlet.ServletExternalContextImpl;

 import org.seasar.teeda.core.util.DIContainerUtil;

 /**

  * @author shot

  *

  */

 public class ServletExternalContextCreator implements ExternalContextCreator {

     public ExternalContext create(Object context, Object request,

             Object response) {

         if (!ServletEnvironmentUtil.isServletEnvironment(context, request,

                 response)) {

             return null;

         }

         return createExternalContext((ServletContext) context,

                 (ServletRequest) request, (ServletResponse) response);

     }

     protected ExternalContext createExternalContext(ServletContext context,

             ServletRequest request, ServletResponse response) {

         ServletExternalContextImpl externalContext = new ServletExternalContextImpl(

                 context, request, response);

         EncodeUrlCustomizer customizer = (EncodeUrlCustomizer) DIContainerUtil

                 .getComponentNoException(EncodeUrlCustomizer.class);

         if (customizer == null) {

             customizer = new WindowIdEncodeUrlCustomizer();

         }

         externalContext.setEncodeUrlCustomizer(customizer);

         return externalContext;

     }

 }