From 6039c1ffbf2cbdb7abfb9984778829ac9cc5be6d Mon Sep 17 00:00:00 2001
From: ferbas <ferbas@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Tue, 27 Oct 2009 11:15:45 +0000
Subject: parameterized codinghelper with hash method

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@366 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../wag/egov/egiz/tools/CodingHelper.java          | 28 +++++++++++++++-------
 1 file changed, 19 insertions(+), 9 deletions(-)

(limited to 'src/main/java/at/knowcenter/wag/egov/egiz/tools')

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/tools/CodingHelper.java b/src/main/java/at/knowcenter/wag/egov/egiz/tools/CodingHelper.java
index fe0cfcb..ce46e68 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/tools/CodingHelper.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/tools/CodingHelper.java
@@ -197,22 +197,24 @@ public class CodingHelper
     }
   }
 
+  // dferbas
   /**
-   * This method builds an SHA-1 hash value of a given byte array.
+   * This method builds an  hash value of a given byte array.
    * 
    * @param data
    *          the byte array to build the hash value for
+   * @param hashAlg hash algorithm for {@link MessageDigest} e.g. "SHA-1" 
    * @return the calculated hash value as a byte array
    * @see MessageDigest
    */
-  public static byte[] buildDigest(byte[] data)
-  {
-    MessageDigest sha_1 = null;
+  public static byte[] buildDigest(byte[] data, String hashAlg)
+  {    
+    MessageDigest digester = null;
     try
     {
-      sha_1 = MessageDigest.getInstance("SHA-1");
-      sha_1.update(data);
-      return sha_1.digest();
+      digester = MessageDigest.getInstance(hashAlg);
+      digester.update(data);
+      return digester.digest();
     }
     catch (NoSuchAlgorithmException e)
     {
@@ -220,11 +222,19 @@ public class CodingHelper
     }
   }
 
-  public static byte[] buildDigest(DataSource input) throws IOException
+  // dferbas
+  /**
+   * This method builds an  hash value of a given byte array.
+   * @param input
+   * @param hashAlg hashAlg hash algorithm for {@link MessageDigest} e.g. "SHA-1"
+   * @return the calculated hash value as a byte array
+   * @throws IOException
+   */
+  public static byte[] buildDigest(DataSource input, String hashAlg) throws IOException
   {
     // PERF: digesting needs data source.
     byte [] data = DataSourceHelper.convertDataSourceToByteArray(input);
-    return buildDigest(data);
+    return buildDigest(data, hashAlg);
   }
   
   /**
-- 
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