DefaultLicenseKeySupport


1   package com.memoire.vainstall;
2   import java.io.InputStream  ;
3   import java.io.OutputStream  ;
4   /*
5    * I suggest to license this file under LGPL license so anyone
6    * could extend this class with own license key validators w/o need
7    * to release source code of validator. I suggest to no to license
8    * this file under GPL2 and stick with LGPL as otherwise it will put
9    * very much of burden on the users of vainstall w/o obvious value
10   * to other user as different company polices could require different
11   * fields to be supplied and this will be likely only difference in different
12   * validators.
13   *
14   * copyrights are completly transfered to VAInstall team without any
15   * restriction.
16   */
17  /**
18    * this class is default implementation of license key support, that does nothing.
19    */
20  public class DefaultLicenseKeySupport extends LicenseKeySupport
21  {
22    /** @return true if license key query step need to be performed
23      */
24    public boolean needsLicenseKey()
25    {
26      return false;
27    }
28    /** @return uri of page that contains registration page,
29      *         if such uri is not null, then it will be shown
30      *         to user and launch browser button will be displayed
31      *         depending on ui and platform.
32      */
33  
34    public String   getRegistrationPage()
35    {
36      return null;
37    }
38  
39    /** get field info for this installer
40      * @return array of field info.
41      */
42    public FieldInfo[] getFieldInfo()
43    {
44      return new FieldInfo[0];
45    }
46    /** set field values, this method coudl be called any number of times.
47      * implementation of this class should keep last passed values.
48      * @param values array of strings where each element correspond field
49      *               info returned from get field info.
50      */
51    public void setFieldValues(String   values[])
52    {
53    }
54    /** @return true, if license key is valid, this method should be called only
55      *         after set field values were called.
56      */
57    public boolean isLicenseKeyValid()
58    {
59      return true;
60    }
61    /** encode archive.zip stream with key supplied as string in
62      * configuration file, this fucntion is called during building install
63      * package
64      * @param is input steam to encode
65      * @param key key supplied in configuration file
66      * @return encrypted stream
67      */
68    public OutputStream   encodeStream(OutputStream   is, String   key)
69    {
70      return is;
71    }
72    /** decode archive.zip stream using infromation supplied in fieldValues
73      * @param is input steam to decode
74      * @return decrypted stream
75      */
76    public InputStream   decodeStream(InputStream   is)
77    {
78      return is;
79    }
80  }
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