--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportSedimentYield.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,121 @@
+package org.dive4elements.river.importer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.hibernate.Session;
+import org.hibernate.Query;
+
+import org.dive4elements.river.model.GrainFraction;
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.SedimentYield;
+import org.dive4elements.river.model.TimeInterval;
+import org.dive4elements.river.model.Unit;
+
+
+public class ImportSedimentYield {
+
+    private static Logger log = Logger.getLogger(ImportSedimentYield.class);
+
+    private ImportGrainFraction grainFraction;
+
+    private ImportUnit unit;
+
+    private ImportTimeInterval timeInterval;
+
+    private String description;
+
+    private List<ImportSedimentYieldValue> values;
+
+    private SedimentYield peer;
+
+    public ImportSedimentYield(String description) {
+        this.values = new ArrayList<ImportSedimentYieldValue>();
+        this.description = description;
+    }
+
+    public void setTimeInterval(ImportTimeInterval timeInterval) {
+        this.timeInterval = timeInterval;
+    }
+
+    public void setUnit(ImportUnit unit) {
+        this.unit = unit;
+    }
+
+    public void setGrainFraction(ImportGrainFraction grainFraction) {
+        this.grainFraction = grainFraction;
+    }
+
+    public void addValue(ImportSedimentYieldValue value) {
+        this.values.add(value);
+    }
+
+    public void storeDependencies(River river) {
+        log.debug("store dependencies");
+
+        if (grainFraction != null) {
+            grainFraction.storeDependencies();
+        }
+
+        SedimentYield peer = getPeer(river);
+
+        if (peer != null) {
+            int i = 0;
+
+            for (ImportSedimentYieldValue value : values) {
+                value.storeDependencies(peer);
+                i++;
+            }
+
+            log.info("stored " + i + " sediment yield values.");
+        }
+    }
+
+    public SedimentYield getPeer(River river) {
+        log.debug("get peer");
+
+        GrainFraction gf = grainFraction != null ? grainFraction.getPeer()
+            : null;
+
+        Unit u = unit != null ? unit.getPeer() : null;
+
+        TimeInterval ti = timeInterval != null ? timeInterval.getPeer() : null;
+
+        if (ti == null || u == null) {
+            log.warn("Skip invalid SedimentYield: time interval or unit null!");
+            return null;
+        }
+
+        if (peer == null) {
+            Session session = ImporterSession.getInstance()
+                .getDatabaseSession();
+            Query query = session.createQuery("from SedimentYield where "
+                + "   river=:river and "
+                + "   grainFraction=:grainFraction and " + "   unit=:unit and "
+                + "   timeInterval=:timeInterval and "
+                + "   description=:description");
+
+            query.setParameter("river", river);
+            query.setParameter("grainFraction", gf);
+            query.setParameter("unit", u);
+            query.setParameter("timeInterval", ti);
+            query.setParameter("description", description);
+
+            List<SedimentYield> yields = query.list();
+            if (yields.isEmpty()) {
+                log.debug("create new SedimentYield");
+
+                peer = new SedimentYield(river, u, ti, gf, description);
+                session.save(peer);
+            }
+            else {
+                peer = yields.get(0);
+            }
+        }
+
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :