/*

  * 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 javax.faces.application;

 import java.io.IOException;

 import java.io.InputStream;

 import java.net.URL;

 import java.util.Map;

 import javax.faces.context.FacesContext;

 /**

  * @since 2.0

  */

 public abstract class Resource extends ViewResource

 {

     /**

      * This constant is used as the key in the component attribute map of a composite component to 

      * associate the component with its <code>Resource</code> instance.

      */

     public static final String COMPONENT_RESOURCE_KEY = "javax.faces.application.Resource.ComponentResource";

     private String _contentType;

     private String _libraryName;

     private String _resourceName;

     public String getContentType()

     {

         return _contentType;

     }

     public abstract InputStream getInputStream() throws IOException;

     public String getLibraryName()

     {

         return _libraryName;

     }

     public abstract String getRequestPath();

     public String getResourceName()

     {

         return _resourceName;

     }

     public abstract Map<String, String> getResponseHeaders();

     public abstract URL getURL();

     public void setContentType(String contentType)

     {

         _contentType = contentType;

     }

     public void setLibraryName(String libraryName)

     {

         _libraryName = libraryName;

     }

     public void setResourceName(String resourceName)

     {

         if (resourceName == null)

         {

             throw new NullPointerException();

         }

         _resourceName = resourceName;

     }

     @Override

     public String toString()

     {

         return getRequestPath();

     }

     public abstract boolean userAgentNeedsUpdate(FacesContext context);

 }