--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixReferenceEventsFacet.java	Wed Jun 06 11:35:32 2012 +0000
@@ -0,0 +1,95 @@
+package de.intevation.flys.artifacts.model.fixings;
+
+import org.apache.log4j.Logger;
+
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.CallContext;
+
+import de.intevation.flys.utils.KMIndex;
+
+import de.intevation.flys.artifacts.FLYSArtifact;
+import de.intevation.flys.artifacts.FixationArtifactAccess;
+
+import de.intevation.flys.artifacts.model.FacetTypes;
+import de.intevation.flys.artifacts.model.DataFacet;
+import de.intevation.flys.artifacts.model.CalculationResult;
+
+import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
+
+
+/**
+ * Facet to show W values for Q values at km for a date.
+ *
+ * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
+ */
+public class FixReferenceEventsFacet
+extends      DataFacet
+implements   FacetTypes {
+
+    /** House logger. */
+    private static Logger logger = Logger.getLogger(FixReferenceEventsFacet.class);
+
+    /** Trivial Constructor. */
+    public FixReferenceEventsFacet() {
+    }
+
+
+    /**
+     * @param name
+     */
+    public FixReferenceEventsFacet(int index, String description) {
+        super(index, FIX_EVENTS, description, ComputeType.ADVANCE, null, null);
+    }
+
+
+    /**
+     * Returns the data this facet requires.
+     *
+     * @param artifact the owner artifact.
+     * @param context  the CallContext (ignored).
+     *
+     * @return the data.
+     */
+    @Override
+    public Object getData(Artifact artifact, CallContext context) {
+        logger.debug("FixReferenceEventsFacet.getData");
+
+        if (artifact instanceof FLYSArtifact) {
+            FLYSArtifact flys = (FLYSArtifact)artifact;
+            FixationArtifactAccess access = new FixationArtifactAccess(flys);
+
+            CalculationResult res =
+                (CalculationResult) flys.compute(context,
+                                                 ComputeType.ADVANCE,
+                                                 false);
+
+            FixResult result = (FixResult) res.getData();
+
+            double km = access.getCurrentKm();
+            KMIndex<QW []> kmQWs = result.getReferenced();
+
+            QW[] qws = kmQWs.binarySearch(km).getValue();
+            if (qws == null) {
+                return null;
+            }
+            return qws;
+        }
+        else {
+            logger.debug("Not an instance of FixationArtifact.");
+            return null;
+        }
+    }
+
+
+    /**
+     * Create a deep copy of this Facet.
+     * @return a deep copy.
+     */
+    @Override
+    public FixReferenceEventsFacet deepCopy() {
+        FixReferenceEventsFacet copy = new FixReferenceEventsFacet();
+        copy.set(this);
+        return copy;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :