Improved error message when METS Disseminator fails. If it fails, it should report on which DSpace Object it failed on (previously, it was nearly impossible to tell which object caused an error).

git-svn-id: http://scm.dspace.org/svn/repo/dspace/trunk@5863 9c30dcfa-912a-0410-8fc2-9e0234be79fd

dspace-api/src/main/java/org/dspace/content/packager/AbstractMETSDisseminator.java

@@ -234,10 +234,15 @@ public abstract class AbstractMETSDisseminator
         }//end try
         catch (MetsException e)
         {
+            String errorMsg = "Error exporting METS for DSpace Object, type="
+                            + Constants.typeText[dso.getType()] + ", handle="
+                            + dso.getHandle() + ", dbID="
+                            + String.valueOf(dso.getID());
+
             // We don't pass up a MetsException, so callers don't need to
             // know the details of the METS toolkit
-            log.error("METS error: ",e);
-            throw new PackageValidationException(e);
+            log.error(errorMsg,e);
+            throw new PackageValidationException(errorMsg, e);
         }
         finally
         {
@@ -1412,6 +1417,7 @@ public abstract class AbstractMETSDisseminator
      * @return a string describing additional command-line options available
      * with this packager
      */
+    @Override
     public String getParameterHelp()
     {
         return  "* manifestOnly=[boolean]      " +