--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/states/extreme/ExtremeCompute.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,116 @@
+package org.dive4elements.river.artifacts.states.extreme;
+
+import org.dive4elements.artifactdatabase.state.Facet;
+
+import org.dive4elements.artifacts.CallContext;
+
+import org.dive4elements.river.artifacts.FLYSArtifact;
+
+import org.dive4elements.river.artifacts.access.ExtremeAccess;
+
+import org.dive4elements.river.artifacts.model.CalculationResult;
+import org.dive4elements.river.artifacts.model.CrossSectionWaterLineFacet;
+import org.dive4elements.river.artifacts.model.DataFacet;
+import org.dive4elements.river.artifacts.model.FacetTypes;
+import org.dive4elements.river.artifacts.model.ReportFacet;
+import org.dive4elements.river.artifacts.model.WaterlevelFacet;
+import org.dive4elements.river.artifacts.model.WQKms;
+
+import org.dive4elements.river.artifacts.model.extreme.ExtremeCurveFacet;
+import org.dive4elements.river.artifacts.model.extreme.ExtremeCalculation;
+import org.dive4elements.river.artifacts.model.extreme.ExtremeResult;
+
+import org.dive4elements.river.artifacts.resources.Resources;
+import org.dive4elements.river.artifacts.states.DefaultState;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+
+/** State in which to deliver extreme value analysis result. */
+public class ExtremeCompute
+extends      DefaultState
+implements   FacetTypes
+{
+    /** Private logger. */
+    private static Logger logger = Logger.getLogger(ExtremeCompute.class);
+
+
+    public ExtremeCompute() {
+    }
+
+
+    @Override
+    public Object computeAdvance(
+        FLYSArtifact artifact,
+        String       hash,
+        CallContext  context,
+        List<Facet>  facets,
+        Object       old
+    ) {
+        logger.debug("ExtremeCompute.computeAdvance");
+
+        CalculationResult res;
+
+        ExtremeAccess access = new ExtremeAccess(artifact, context);
+
+        if (old instanceof CalculationResult) {
+            res = (CalculationResult)old;
+        }
+        else {
+            ExtremeCalculation calc = new ExtremeCalculation(access);
+            res = calc.calculate();
+        }
+
+        if (facets == null) {
+            return res;
+        }
+
+        if (res.getReport().hasProblems()) {
+            facets.add(new ReportFacet());
+        }
+
+        ExtremeResult eres = (ExtremeResult) res.getData();
+        WQKms [] wqkms = (WQKms []) eres.getWQKms();
+
+        if (wqkms == null) {
+            logger.error("No computation result!");
+            return res;
+        }
+
+        for (int i = 0; i < wqkms.length; i++) {
+            String name = wqkms[i].getName();
+            // The name already contains "W(...)".
+            String qname = name.replace("W(","Q=");
+            qname = qname.substring(0,qname.length()-1);
+
+            Facet w = new WaterlevelFacet(
+                i, LONGITUDINAL_W, name, ComputeType.ADVANCE, id, hash);
+            Facet q = new WaterlevelFacet(
+                i, LONGITUDINAL_Q, qname, ComputeType.ADVANCE, id, hash);
+            Facet csFacet = new CrossSectionWaterLineFacet(i, name);
+
+            facets.add(w);
+            facets.add(q);
+            facets.add(csFacet);
+        }
+
+
+        facets.add(
+            new DataFacet(CSV, "CSV data", ComputeType.ADVANCE, hash, id));
+        facets.add(
+            new DataFacet(PDF, "PDF data", ComputeType.ADVANCE, hash, id));
+        facets.add(
+            new DataFacet(WST, "WST data", ComputeType.ADVANCE, hash, id));
+
+        facets.add(new ExtremeCurveFacet(Resources.getMsg(context.getMeta(),
+                                         "extreme_wq_curve", "extreme_wq_curve")));
+        facets.add(new ExtremeCurveFacet(Resources.getMsg(context.getMeta(),
+                                         "extreme_wq_base_curve", "extreme_wq_base_curve")
+                                         , true));
+
+        return res;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :