3 files changed, 52 insertions, 53 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/DataObjectHashDataInput.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/DataObjectHashDataInput.java
new file mode 100644
index 00000000..71b62911
--- /dev/null
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/DataObjectHashDataInput.java
@@ -0,0 +1,50 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package at.gv.egiz.bku.slcommands.impl;
+
+import at.gv.egiz.bku.binding.HttpUtil;
+import at.gv.egiz.bku.slcommands.impl.xsect.DataObject;
+import at.gv.egiz.stal.HashDataInput;
+import java.io.InputStream;
+
+/**
+ *
+ * @author clemens
+ */
+public class DataObjectHashDataInput implements HashDataInput {
+
+  protected DataObject dataObject;
+
+    public DataObjectHashDataInput(DataObject dataObject) {
+      if (dataObject.getReference() == null) 
+        throw new NullPointerException("DataObject reference must not be null");
+      this.dataObject = dataObject;
+    }
+    
+    @Override
+    public String getReferenceId() {
+      return dataObject.getReference().getId();
+    }
+
+    @Override
+    public String getMimeType() {
+        return dataObject.getMimeType();
+    }
+
+    /**
+     * 
+     * @return the pre-digested input stream if reference caching is enabled, null otherwise
+     */
+    @Override
+    public InputStream getHashDataInput() {
+        return dataObject.getReference().getDigestInputStream();
+    }
+
+    @Override
+    public String getEncoding() {
+      return HttpUtil.getCharset(dataObject.getMimeType(), false);
+    }
+
+}
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/HashDataInputImpl.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/HashDataInputImpl.java
deleted file mode 100644
index d6999404..00000000
--- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/HashDataInputImpl.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * To change this template, choose Tools | Templates
- * and open the template in the editor.
- */
-package at.gv.egiz.bku.slcommands.impl;
-
-import at.gv.egiz.bku.binding.HttpUtil;
-import at.gv.egiz.bku.slcommands.impl.xsect.DataObject;
-import at.gv.egiz.stal.HashDataInput;
-import java.io.InputStream;
-
-/**
- *
- * @author clemens
- */
-public class HashDataInputImpl implements HashDataInput {
-
-    String refId;
-    String mimeType;
-    String encoding;
-    InputStream hashDataInput;
-
-    public HashDataInputImpl(DataObject dataObject) {
-        refId = dataObject.getReference().getId();
-        String contentType = dataObject.getMimeType();
-        mimeType = contentType.split(";")[0].trim();
-        encoding = HttpUtil.getCharset(dataObject.getMimeType(), false);
-        hashDataInput = dataObject.getReference().getDigestInputStream();
-    }
-    
-    @Override
-    public String getReferenceId() {
-        return refId;
-    }
-
-    @Override
-    public String getMimeType() {
-        return mimeType;
-    }
-
-    @Override
-    public InputStream getHashDataInput() {
-        return hashDataInput;
-    }
-
-    @Override
-    public String getEncoding() {
-      return encoding;
-    }
-
-}
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/STALSignature.java b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/STALSignature.java
index 2d89c8ae..dd7c7d8a 100644
--- a/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/STALSignature.java
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/slcommands/impl/xsect/STALSignature.java
@@ -16,7 +16,7 @@
 */
 package at.gv.egiz.bku.slcommands.impl.xsect;
 
-import at.gv.egiz.bku.slcommands.impl.HashDataInputImpl;
+import at.gv.egiz.bku.slcommands.impl.DataObjectHashDataInput;
 import at.gv.egiz.bku.slexceptions.SLViewerException;
 
 import java.io.ByteArrayOutputStream;
@@ -131,7 +131,7 @@ public class STALSignature extends SignatureSpi {
       } catch (SLViewerException e) {
         throw new STALSignatureException(e);
       }
-      hashDataInputs.add(new HashDataInputImpl(dataObject));
+      hashDataInputs.add(new DataObjectHashDataInput(dataObject));
     }
     
     SignRequest signRequest = new SignRequest();