--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportSedimentLoadValue.java	Thu Jul 10 16:57:32 2014 +0200
@@ -0,0 +1,69 @@
+package org.dive4elements.river.importer;
+
+import java.util.List;
+
+import org.dive4elements.river.model.MeasurementStation;
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.SedimentLoad;
+import org.dive4elements.river.model.SedimentLoadValue;
+import org.hibernate.Query;
+import org.hibernate.Session;
+
+public class ImportSedimentLoadValue {
+
+    private SedimentLoadValue peer;
+
+    private ImportMeasurementStation station;
+    private ImportSedimentLoad       sedimentLoad;
+    private Double                   value;
+
+    public ImportSedimentLoadValue() {
+    }
+
+    public ImportSedimentLoadValue(
+        ImportMeasurementStation station,
+        ImportSedimentLoad       sedimentLoad,
+        Double                   value
+    ) {
+        this.station      = station;
+        this.sedimentLoad = sedimentLoad;
+        this.value        = value;
+    }
+
+    protected SedimentLoadValue getPeer(River river) {
+
+        if (peer == null) {
+            Session session = ImporterSession.getInstance().getDatabaseSession();
+            Query query = session.createQuery(
+                "from SedimentLoadValue where " +
+                "   station = :station and " +
+                "   sedimentLoad = :sedimentLoad and " +
+                "   value = :value");
+
+            MeasurementStation ms = station.getPeer(river);
+            SedimentLoad sl = sedimentLoad.getPeer();
+
+            query.setParameter("station", ms);
+            query.setParameter("sedimentLoad", sl);
+            query.setParameter("value", value);
+
+            List<SedimentLoadValue> values = query.list();
+            if (values.isEmpty()) {
+                peer = new SedimentLoadValue(sl, ms, value);
+                session.save(peer);
+            }
+            else {
+                peer = values.get(0);
+            }
+        }
+
+        return peer;
+    }
+
+    public void storeDependencies(River river) {
+        station.storeDependencies(river);
+        sedimentLoad.storeDependencies();
+        getPeer(river);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :