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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  
23  import org.apache.commons.collections.iterators.ArrayIterator;
24  
25  /***
26   * A configuration wrapper to read applet parameters. This configuration is
27   * read only, adding or removing a property will throw an
28   * UnsupportedOperationException.
29   *
30   * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
31   * @version $Revision: 515306 $, $Date: 2007-03-06 22:15:00 +0100 (Di, 06 Mrz 2007) $
32   * @since 1.1
33   */
34  public class AppletConfiguration extends BaseWebConfiguration
35  {
36      /*** Stores the wrapped applet.*/
37      protected Applet applet;
38  
39      /***
40       * Create an AppletConfiguration using the initialization parameters of
41       * the specified Applet.
42       *
43       * @param applet the applet
44       */
45      public AppletConfiguration(Applet applet)
46      {
47          this.applet = applet;
48      }
49  
50      public Object getProperty(String key)
51      {
52          return handleDelimiters(applet.getParameter(key));
53      }
54  
55      public Iterator getKeys()
56      {
57          String[][] paramsInfo = applet.getParameterInfo();
58          String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0];
59          for (int i = 0; i < keys.length; i++)
60          {
61              keys[i] = paramsInfo[i][0];
62          }
63  
64          return new ArrayIterator(keys);
65      }
66  }