FileSignatureGenerator


1   package net.suberic.pooka;
2   import java.io.*;
3   
4   /**
5    * This is a simple SignatureGenerator which reads a file and returns its
6    * contents as a signature.
7    */
8   public class FileSignatureGenerator extends SignatureGeneratorImpl {
9   
10      public FileSignatureGenerator() {
11      }
12  
13      /** 
14       * Returns the contents of the file UserProfile.username.signatureFile
15       * as a signature.
16       */
17      
18      public String   generateSignature(String   text) {
19      if (profile != null) {
20          String   fileName = Pooka.getProperty("UserProfile." + profile.getName() + ".signatureFile", "");
21          if (!fileName.equals("")) {
22          File f = new File(fileName);
23          if (f.exists() && f.canRead()) {
24              try {
25              StringBuffer   returnValue = new StringBuffer  ();
26              BufferedReader reader = new BufferedReader(new FileReader(f));
27              boolean done = false;
28              while (!done) {
29                  String   nextLine = reader.readLine();
30                  if (nextLine != null) {
31                  returnValue.append(nextLine);
32                  returnValue.append("\n");
33                  } else {
34                  done = true;
35                  }
36              }
37  
38              return returnValue.toString();
39              } catch (Exception   e) {
40              e.printStackTrace();
41              }
42          }
43          }
44      }
45  
46      return null;
47      }
48  
49  }
50
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