git-svn-id: http://locode01.ad.dom/svn/WEBMIP/trunk@50874 248e525c-4dfb-0310-94bc-949c084e9493

Data/BulkLoad/EFT/Nominations/java/amHashFile.java

@@ -0,0 +1,40 @@
+package tsdemo;
+/*
+ * amHashFile.java
+ *
+ * Created on 2007. March 22
+ *
+ */
+
+import java.security.MessageDigest;
+
+import java.io.InputStream;
+
+import oracle.sql.BLOB;
+
+public class amHashFile 
+{   
+    /** Creates a new instance of HashFile */
+    public amHashFile() {
+    }
+    
+    public static byte[] getHash(oracle.sql.BLOB blobFile, String Algorithm) {
+        try {
+            MessageDigest d = MessageDigest.getInstance(Algorithm);     // Get a hash handler
+            //FileInputStream f = new FileInputStream(Filename);          // open file for hashing
+            /* get the blob from the documents table as a binary input stream */
+            //oracle.sql.BLOB blob = blobFile;
+            InputStream f = blobFile.getBinaryStream ();
+            //
+            byte[] b = new byte[1];                                     
+            while ( -1 != f.read(b, 0, 1))                              // feed the message digester
+                d.update(b);
+            f.close();
+            return d.digest();                                          // get the final hash and return it
+        } catch (Exception e) {
+        System.out.println("Hashing Error " + e.getMessage());
+            return null;
+        }
+    }
+    
+}