--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/DeltaWtExporter.java	Mon May 28 18:35:01 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/DeltaWtExporter.java	Mon May 28 20:59:27 2012 +0000
@@ -98,7 +98,9 @@
     }
 
     @Override
-    protected void writeCSVData(CSVWriter writer) {
+    protected void writeCSVData(CSVWriter writer) throws IOException {
+
+        boolean debug = log.isDebugEnabled();
 
         writeCSVHeader(writer);
 
@@ -109,12 +111,22 @@
         Locale locale = Resources.getLocale(meta);
         DateFormat dF = DateFormat.getDateInstance(DateFormat.SHORT, locale);
 
+        if (debug) {
+            log.debug("DeltaWTsKMs: " + deltaWTsKMs.size());
+        }
+
         for (DeltaWTsKM deltaWTsKM: deltaWTsKMs) {
             List<DeltaWTsKM.KM> dkms = deltaWTsKM.getKms();
+            if (debug) {
+                log.debug("DeltaWTsKM.KM: " + dkms.size());
+            }
             for (DeltaWTsKM.KM dkm: dkms) {
                 double km = dkm.getKm();
                 String kmS = kmF.format(km);
                 List<DeltaWT> deltaWTs = dkm.getDeltaWTs();
+                if (debug) {
+                    log.debug("deltaWTs: " + deltaWTs.size());
+                }
                 for (DeltaWT dwt: deltaWTs) {
                     double deltaW = dwt.getDeltaW();
                     Date   date   = dwt.getDate();
@@ -131,6 +143,7 @@
                 }
             }
         }
+        writer.flush();
     }