[PATCH 2 of 3] Write an empty string if year is 0 in middle bedheight exporter

[Wald Commits]

# HG changeset patch
# User Raimund Renkert <rrenkert at intevation.de>
# Date 1404400837 -7200
# Branch facet-metadata
# Node ID 60cd665b1bd6b77042797fe3266a54b7eed02018
# Parent  b8d1bd49c637dfa1099d94dbe60096da575665f7
Write an empty string if year is 0 in middle bedheight exporter.

diff -r b8d1bd49c637 -r 60cd665b1bd6 artifacts/src/main/java/org/dive4elements/river/exports/MiddleBedHeightExporter.java
--- a/artifacts/src/main/java/org/dive4elements/river/exports/MiddleBedHeightExporter.java	Thu Jul 03 17:17:28 2014 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/MiddleBedHeightExporter.java	Thu Jul 03 17:20:37 2014 +0200
@@ -207,8 +207,12 @@
 
     private void writeMetaData(CSVWriter writer, MiddleBedHeightData data) {
          writer.writeNext(new String[]{"#"});
+         String year = "";
+         if (data.getStartYear() != 0) {
+             year = String.valueOf(data.getStartYear());
+         }
          writer.writeNext(new String[]{"# " + msg(CSV_META_YEAR) +
-             ": " + data.getStartYear()});
+             ": " + year});
          writer.writeNext(new String[]{"# " + msg(CSV_META_TYPE) +
              ": " + data.getType()});
          writer.writeNext(new String[]{"# " + msg(CSV_META_LOC_SYSTEM) +