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Java > Open Source Codes > com > izforge > izpack > sample > Scrambler


1 /*
2  * IzPack - Copyright 2001-2005 Julien Ponge, All Rights Reserved.
3  *
4  * http://www.izforge.com/izpack/
5  * http://developer.berlios.de/projects/izpack/
6  *
7  * Copyright 2003 Elmar Grom
8  *
9  * Licensed under the Apache License, Version 2.0 (the "License");
10  * you may not use this file except in compliance with the License.
11  * You may obtain a copy of the License at
12  *
13  * http://www.apache.org/licenses/LICENSE-2.0
14  *
15  * Unless required by applicable law or agreed to in writing, software
16  * distributed under the License is distributed on an "AS IS" BASIS,
17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18  * See the License for the specific language governing permissions and
19  * limitations under the License.
20  */

21
22 package com.izforge.izpack.sample;
23
24 import com.izforge.izpack.panels.*;
25
26 /*---------------------------------------------------------------------------*/
27 /**
28  * This class provides a demonstration for using an encryption service in
29  * connection with a <code>RuleInputField</code>, as used in a
30  * <code>UserInputPanel</code>.
31  *
32  * @version 0.0.1 / 02/19/03
33  * @author Elmar Grom
34  */

35 /*---------------------------------------------------------------------------*/
36 public class Scrambler implements Processor
37 {
38  /*--------------------------------------------------------------------------*/
39  /**
40   * Rearranges the input fields and concatenates the result, separating
41   * individual fields with a '*'.
42   *
43   * @param client the client object using the services of this encryptor.
44   *
45   * @return the encryption result.
46   */

47  /*--------------------------------------------------------------------------*/
48   public String JavaDoc process (ProcessingClient client)
49   {
50     StringBuffer JavaDoc buffer = new StringBuffer JavaDoc ();
51     
52     for (int i = client.getNumFields () - 1; i > -1; i--)
53     {
54       buffer.append (client.getFieldContents (i));
55       if (i > 0)
56       {
57         buffer.append ('*');
58       }
59     }
60     
61     return (buffer.toString ());
62   }
63 }
64 /*---------------------------------------------------------------------------*/
65
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