--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportSedimentDensity.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,97 @@
+package org.dive4elements.river.importer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.hibernate.Query;
+import org.hibernate.Session;
+
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.SedimentDensity;
+
+
+public class ImportSedimentDensity {
+
+    private static Logger log = Logger.getLogger(ImportSedimentDensity.class);
+
+    protected SedimentDensity peer;
+
+    protected ImportDepth depth;
+
+    protected String description;
+
+    protected List<ImportSedimentDensityValue> values;
+
+    public ImportSedimentDensity(String description) {
+        this.description = description;
+        this.values = new ArrayList<ImportSedimentDensityValue>();
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDepth(ImportDepth depth) {
+        this.depth = depth;
+    }
+
+    public void addValue(ImportSedimentDensityValue value) {
+        values.add(value);
+    }
+
+    public void storeDependencies(River river) {
+        log.info("store dependencies");
+
+        if (depth != null) {
+            depth.storeDependencies();
+        }
+
+        SedimentDensity peer = getPeer(river);
+
+        if (peer != null) {
+            log.info("store sediment density values.");
+            for (ImportSedimentDensityValue value : values) {
+                value.storeDependencies(peer);
+            }
+        }
+    }
+
+    public SedimentDensity getPeer(River river) {
+        log.info("get peer");
+
+        if (depth == null) {
+            log.warn("cannot store sediment density '" + description
+                + "': no depth");
+            return null;
+        }
+
+        if (peer == null) {
+            Session session = ImporterSession.getInstance()
+                .getDatabaseSession();
+
+            Query query = session.createQuery("from SedimentDensity where "
+                + "   river=:river and " + "   depth=:depth");
+
+            query.setParameter("river", river);
+            query.setParameter("depth", depth.getPeer());
+
+            List<SedimentDensity> density = query.list();
+
+            if (density.isEmpty()) {
+                log.debug("Create new SedimentDensity DB instance.");
+
+                peer = new SedimentDensity(river, depth.getPeer(),
+                    description);
+
+                session.save(peer);
+            }
+            else {
+                peer = density.get(0);
+            }
+        }
+
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :