--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportOfficialLine.java	Fri Jun 14 17:56:52 2013 +0200
@@ -0,0 +1,65 @@
+/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+
+package org.dive4elements.river.importer;
+
+import java.util.List;
+
+import org.dive4elements.river.model.NamedMainValue;
+import org.dive4elements.river.model.OfficialLine;
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.WstColumn;
+import org.hibernate.Query;
+import org.hibernate.Session;
+
+public class ImportOfficialLine
+{
+    protected String name;
+    protected ImportWstColumn wstColumn;
+
+    protected OfficialLine peer;
+
+    public ImportOfficialLine() {
+    }
+
+    public ImportOfficialLine(String name, ImportWstColumn wstColumn) {
+        this.name = name;
+        this.wstColumn = wstColumn;
+    }
+
+    public OfficialLine getPeer(River river) {
+        if (peer == null) {
+            // XXX: This is a bit odd. We do not have not enough infos here
+            // to create a new NamedMainValue. So we just look for existing ones.
+            Session session = ImporterSession.getInstance().getDatabaseSession();
+            NamedMainValue nmv = NamedMainValue.fetchByName(name, session);
+            if (nmv == null) {
+                // failed -> failed to create OfficialLine
+                return null;
+            }
+            WstColumn wc = wstColumn.getPeer(river);
+            Query query = session.createQuery(
+                "from OfficialLine " +
+                "where namedMainValue = :nmv and wstColumn = :wc");
+            query.setParameter("nmv", nmv);
+            query.setParameter("wc", wc);
+            List<OfficialLine> lines = query.list();
+            if (lines.isEmpty()) {
+                peer = new OfficialLine(wc, nmv);
+                session.save(peer);
+            }
+            else {
+                peer = lines.get(0);
+            }
+
+        }
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
+