/*
    * 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.myfaces.webapp.filter;
  
  import javax.portlet.ActionRequest;
  import javax.portlet.PortletConfig;
  import javax.portlet.PortletContext;
  
  import org.apache.commons.fileupload.portlet.PortletFileUpload;
  
  /**
   * This class is used to hold some utilities used by tomahawk in portlet
   * environments. The idea is that all calls to portlet api methods
   * should be done here, to avoid ClassNotFoundException error in
   * servlet environments.
   * 
   * The public methods should not use classes on portlet api, so the
   * other classes calling this class does not have dependencies to this api.
   * 
   * @since 1.1.8
   * @author Leonardo Uribe (latest modification by $Author: lu4242 $)
   * @version $Revision: 954965 $ $Date: 2010-06-15 11:58:31 -0500 (Tue, 15 Jun 2010) $
   */
  public class PortletUtils
  {
  
      public static boolean isDisabledTomahawkFacesContextWrapper(Object contextOrConfig)
      {
          PortletContext portletContext = null;
          if (contextOrConfig instanceof PortletConfig)
          {
              portletContext = ((PortletConfig)contextOrConfig).getPortletContext();
          }
          else
          {
              portletContext = (PortletContext)contextOrConfig;
          }
          
          return getBooleanValue(portletContext.getInitParameter(
                  TomahawkFacesContextFactory.DISABLE_TOMAHAWK_FACES_CONTEXT_WRAPPER),
                  TomahawkFacesContextFactory.DISABLE_TOMAHAWK_FACES_CONTEXT_WRAPPER_DEFAULT);
      }
      
      private static boolean getBooleanValue(String initParameter, boolean defaultVal)
      {
          if(initParameter == null || initParameter.trim().length()==0)
              return defaultVal;
  
          return (initParameter.equalsIgnoreCase("on") || initParameter.equals("1") || initParameter.equalsIgnoreCase("true"));
      }
      
      public static boolean isMultipartContent(Object request)
      {
          if (request instanceof ActionRequest)
          {
              return PortletFileUpload.isMultipartContent((ActionRequest)request);
          }
          else
          {
              return false;
          }
      }
      
      public static String getContextInitParameter(Object context, String paramName)
      {
          PortletContext portletContext = (PortletContext) context;
          return portletContext.getInitParameter(paramName);
      }
      
      public static Object getAttribute(Object context, String key)
      {
          PortletContext portletContext = (PortletContext) context;
          return portletContext.getAttribute(key);
      }
      
      public static void setAttribute(Object context, String key, Object value)
      {
          PortletContext portletContext = (PortletContext) context;
          portletContext.setAttribute(key, value);
      }
  }