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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
    18  package org.apache.commons.configuration.web;
    19
    20  import java.applet.Applet;
    21  import java.util.Iterator;
    22  import java.util.List;
    23
    24  import org.apache.commons.collections.iterators.ArrayIterator;
    25  import org.apache.commons.configuration.PropertyConverter;
    26
    27  /***
    28   * A configuration wrapper to read applet parameters. This configuration is
    29   * read only, adding or removing a property will throw an
    30   * UnsupportedOperationException.
    31   *
    32   * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
    33   * @version $Revision: 439648 $, $Date: 2006-09-02 22:42:10 +0200 (Sa, 02 Sep 2006) $
    34   * @since 1.1
    35   */
    36  public class AppletConfiguration extends BaseWebConfiguration
    37  {
    38      /*** Stores the wrapped applet.*/
    39      protected Applet applet;
    40
    41      /***
    42       * Create an AppletConfiguration using the initialization parameters of
    43       * the specified Applet.
    44       *
    45       * @param applet the applet
    46       */
    47      public AppletConfiguration(Applet applet)
    48      {
    49          this.applet = applet;
    50      }
    51
    52      public Object getProperty(String key)
    53      {
    54          Object value = applet.getParameter(key);
    55          if (!isDelimiterParsingDisabled())
    56          {
    57              List list = PropertyConverter.split((String) value, getListDelimiter());
    58              value = list.size() > 1 ? list : value;
    59          }
    60
    61          return value;
    62      }
    63
    64      public Iterator getKeys()
    65      {
    66          String[][] paramsInfo = applet.getParameterInfo();
    67          String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0];
    68          for (int i = 0; i < keys.length; i++)
    69          {
    70              keys[i] = paramsInfo[i][0];
    71          }
    72
    73          return new ArrayIterator(keys);
    74      }
    75  }