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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  package org.apache.portals.bridges.jsf;
    18
    19  import java.util.Enumeration;
    20
    21  import javax.portlet.PortletContext;
    22
    23  import org.apache.portals.bridges.jsf.AbstractAttributeMap;
    24
    25  /***
    26   * <p>
    27   * {@link PortletContext}init parameters as Map.
    28   * </p>
    29   * <p>
    30   * See MyFaces project for servlet implementation.
    31   * </p>
    32   *
    33   * @author <a href="dlestrat@apache.org">David Le Strat </a>
    34   */
    35  public class InitParameterMap extends AbstractAttributeMap
    36  {
    37      /*** Illegal argument exception message. */
    38      final private static String ILLEGAL_ARGUMENT = "Only PortletContext supported";
    39
    40      /*** The {@link PortletContext}. */
    41      final private PortletContext portletContext;
    42
    43      /***
    44       * @param context The context.
    45       */
    46      public InitParameterMap(Object context)
    47      {
    48          if (context instanceof PortletContext)
    49          {
    50              this.portletContext = (PortletContext) context;
    51          }
    52          else
    53          {
    54              throw new IllegalArgumentException(ILLEGAL_ARGUMENT);
    55          }
    56      }
    57
    58      /***
    59       * @see org.apache.portals.bridges.jsf.AbstractAttributeMap#getAttribute(java.lang.String)
    60       */
    61      public Object getAttribute(String key)
    62      {
    63          if (null != this.portletContext)
    64          {
    65              return this.portletContext.getInitParameter(key);
    66          }
    67          else
    68          {
    69              throw new IllegalArgumentException(ILLEGAL_ARGUMENT);
    70          }
    71      }
    72
    73      /***
    74       * @see org.apache.portals.bridges.jsf.AbstractAttributeMap#setAttribute(java.lang.String,
    75       *      java.lang.Object)
    76       */
    77      public void setAttribute(String key, Object value)
    78      {
    79          throw new UnsupportedOperationException("Cannot set PortletContext InitParameter");
    80      }
    81
    82      /***
    83       * @see org.apache.portals.bridges.jsf.AbstractAttributeMap#removeAttribute(java.lang.String)
    84       */
    85      public void removeAttribute(String key)
    86      {
    87          throw new UnsupportedOperationException("Cannot remove PortletContext InitParameter");
    88      }
    89
    90      /***
    91       * @see org.apache.portals.bridges.jsf.AbstractAttributeMap#getAttributeNames()
    92       */
    93      public Enumeration getAttributeNames()
    94      {
    95          if (null != this.portletContext)
    96          {
    97              return this.portletContext.getInitParameterNames();
    98          }
    99          else
    100         {
    101             throw new IllegalArgumentException(ILLEGAL_ARGUMENT);
    102         }
    103     }
    104 }