--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/FixLongitudinalReferenceFacet.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,115 @@
+package org.dive4elements.river.artifacts.model.fixings;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.CallContext;
+
+import org.dive4elements.river.artifacts.FLYSArtifact;
+
+import org.dive4elements.river.artifacts.access.FixAnalysisAccess;
+
+import org.dive4elements.river.artifacts.model.CalculationResult;
+import org.dive4elements.river.artifacts.model.DataFacet;
+import org.dive4elements.river.artifacts.model.FacetTypes;
+
+import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
+
+import org.dive4elements.river.utils.KMIndex;
+
+import org.apache.log4j.Logger;
+
+
+/**
+ * Facet to show average W values for Q sectors.
+ *
+ * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
+ */
+public class FixLongitudinalReferenceFacet
+extends      DataFacet
+implements   FacetTypes {
+
+    /** House logger. */
+    private static Logger logger = Logger.getLogger(FixLongitudinalReferenceFacet.class);
+
+    /** Trivial Constructor. */
+    public FixLongitudinalReferenceFacet() {
+    }
+
+
+    public FixLongitudinalReferenceFacet(
+        int ndx,
+        String name,
+        String description)
+    {
+        super(
+            ndx,
+            name,
+            description,
+            ComputeType.ADVANCE,
+            null,
+            null);
+    }
+
+
+    /**
+     * Returns the data this facet requires.
+     *
+     * @param artifact the owner artifact.
+     * @param context  the CallContext.
+     *
+     * @return the data as KMIndex.
+     */
+    @Override
+    public Object getData(Artifact artifact, CallContext context) {
+        logger.debug("FixLongitudinalReferenceFacet.getData");
+
+        if (artifact instanceof FLYSArtifact) {
+            FLYSArtifact flys = (FLYSArtifact)artifact;
+            FixAnalysisAccess access = new FixAnalysisAccess(flys, context);
+
+            CalculationResult res =
+                (CalculationResult) flys.compute(context,
+                                                 ComputeType.ADVANCE,
+                                                 false);
+
+            FixAnalysisResult result = (FixAnalysisResult) res.getData();
+
+            KMIndex<QWD []> kmReference = result.getReferenced();
+
+            if (kmReference == null) {
+                logger.warn("No references found.");
+                return null;
+            }
+
+            int qwdNdx = index & 255;
+            KMIndex<QWD> resReference =
+                    new KMIndex<QWD>();
+            for (KMIndex.Entry<QWD[]> entry: kmReference) {
+                QWD[] qwds = entry.getValue();
+                for(int i = 0; i < qwds.length; i++) {
+                    if(qwds[i].getIndex() == qwdNdx) {
+                        resReference.add(entry.getKm(), qwds[i]);
+                    }
+                }
+            }
+            return resReference;
+        }
+        else {
+            logger.warn("Artifact is no instance of FLYSArtifact.");
+            return null;
+        }
+    }
+
+
+    /**
+     * Create a deep copy of this Facet.
+     * @return a deep copy.
+     */
+    @Override
+    public FixLongitudinalReferenceFacet deepCopy() {
+        FixLongitudinalReferenceFacet copy =
+            new FixLongitudinalReferenceFacet();
+        copy.set(this);
+        return copy;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :