--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/states/ComputedDischargeCurveState.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,105 @@
+package org.dive4elements.river.artifacts.states;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.dive4elements.artifacts.CallContext;
+
+import org.dive4elements.artifactdatabase.state.Facet;
+
+import org.dive4elements.river.artifacts.FLYSArtifact;
+import org.dive4elements.river.artifacts.WINFOArtifact;
+import org.dive4elements.river.artifacts.ChartArtifact;
+
+import org.dive4elements.river.artifacts.model.FacetTypes;
+import org.dive4elements.river.artifacts.model.WaterlevelFacet;
+import org.dive4elements.river.artifacts.model.DataFacet;
+import org.dive4elements.river.artifacts.model.ReportFacet;
+import org.dive4elements.river.artifacts.model.EmptyFacet;
+import org.dive4elements.river.artifacts.model.WQKms;
+import org.dive4elements.river.artifacts.model.CalculationResult;
+
+import org.dive4elements.river.artifacts.resources.Resources;
+
+import org.dive4elements.river.utils.FLYSUtils;
+
+/**
+ * The final state that will be reached after the discharge curve calculation
+ * mode has been chosen.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class ComputedDischargeCurveState
+extends      DefaultState
+implements   FacetTypes
+{
+    /** The logger that is used in this state. */
+    private static Logger logger =
+        Logger.getLogger(ComputedDischargeCurveState.class);
+
+
+    public ComputedDischargeCurveState() {
+    }
+
+
+    /**
+     * Get computed discharge curve data from cache (if available) or
+     * compute anew. Create Waterlevel and DataFacets.
+     */
+    @Override
+    public Object computeAdvance(
+        FLYSArtifact artifact,
+        String       hash,
+        CallContext  context,
+        List<Facet>  facets,
+        Object       old
+    ) {
+        logger.debug("ComputedDischargeCurveState.computeAdvance");
+        if(artifact instanceof WINFOArtifact) {
+            WINFOArtifact winfo = (WINFOArtifact)artifact;
+
+            CalculationResult res = old instanceof CalculationResult
+                ? (CalculationResult)old
+                : winfo.getComputedDischargeCurveData();
+
+            WQKms [] wqkms = (WQKms [])res.getData();
+
+            if (facets != null && wqkms.length > 0) {
+                for (int i = 0; i < wqkms.length; ++i) {
+
+                    Object[] args = new Object[] {
+                        FLYSUtils.getRiver(winfo).getName(),
+                        // Parse Double to allow i18n.
+                        Double.parseDouble(wqkms[i].getName())
+                    };
+
+                    String name = Resources.getMsg(
+                        context.getMeta(),
+                        "chart.computed.discharge.curve.curve.label",
+                        "",
+                        args);
+
+                    facets.add(new WaterlevelFacet(i, COMPUTED_DISCHARGE_Q, name));
+                    facets.add(new WaterlevelFacet(i, AT, "AT data"));
+                }
+
+                facets.add(new DataFacet(CSV, "CSV data"));
+                facets.add(new DataFacet(PDF, "PDF data"));
+
+                if (res.getReport().hasProblems()) {
+                    facets.add(new ReportFacet());
+                }
+            }
+
+            return res;
+        }
+        else if(artifact instanceof ChartArtifact) {
+            ChartArtifact chart = (ChartArtifact)artifact;
+            facets.add(new EmptyFacet());
+            return null;
+        }
+        return null;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :