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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.Arrays;
22  import java.util.Iterator;
23  
24  /**
25   * A configuration wrapper to read applet parameters. This configuration is
26   * read only, adding or removing a property will throw an
27   * UnsupportedOperationException.
28   *
29   * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
30   * @version $Id: AppletConfiguration.java 1211124 2011-12-06 20:56:16Z oheger $
31   * @since 1.1
32   */
33  public class AppletConfiguration extends BaseWebConfiguration
34  {
35      /** Stores the wrapped applet.*/
36      protected Applet applet;
37  
38      /**
39       * Create an AppletConfiguration using the initialization parameters of
40       * the specified Applet.
41       *
42       * @param applet the applet
43       */
44      public AppletConfiguration(Applet applet)
45      {
46          this.applet = applet;
47      }
48  
49      public Object getProperty(String key)
50      {
51          return handleDelimiters(applet.getParameter(key));
52      }
53  
54      public Iterator<String> getKeys()
55      {
56          String[][] paramsInfo = applet.getParameterInfo();
57          String[] keys = new String[paramsInfo != null ? paramsInfo.length : 0];
58          for (int i = 0; i < keys.length; i++)
59          {
60              keys[i] = paramsInfo[i][0];
61          }
62  
63          return Arrays.asList(keys).iterator();
64      }
65  }