--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportLocationSystem.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,60 @@
+package org.dive4elements.river.importer;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.hibernate.Session;
+import org.hibernate.Query;
+
+import org.dive4elements.river.model.LocationSystem;
+
+
+public class ImportLocationSystem {
+
+    private static final Logger log =
+        Logger.getLogger(ImportLocationSystem.class);
+
+
+    protected String name;
+    protected String description;
+
+    protected LocationSystem peer;
+
+
+    public ImportLocationSystem(String name, String description) {
+        this.name        = name;
+        this.description = description;
+    }
+
+    public void storeDependencies() {
+        log.info("store LocationSystem '" + name + "'");
+        LocationSystem ls = getPeer();
+
+        Session session = ImporterSession.getInstance().getDatabaseSession();
+        session.flush();
+    }
+
+    public LocationSystem getPeer() {
+        if (peer == null) {
+            Session session = ImporterSession.getInstance().getDatabaseSession();
+            Query query = session.createQuery(
+                "from LocationSystem where " +
+                "name=:name and description=:description");
+            query.setParameter("name", name);
+            query.setParameter("description", description);
+
+            List<LocationSystem> lss = query.list();
+            if (lss.isEmpty()) {
+                peer = new LocationSystem(name, description);
+                session.save(peer);
+            }
+            else {
+                peer = lss.get(0);
+            }
+        }
+
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :