--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/FlowVelocityState.java	Fri Sep 28 12:14:39 2012 +0200
@@ -0,0 +1,159 @@
+package de.intevation.flys.artifacts.states;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import de.intevation.artifactdatabase.state.Facet;
+
+import de.intevation.artifacts.CallContext;
+
+import de.intevation.flys.artifacts.FLYSArtifact;
+import de.intevation.flys.artifacts.access.FlowVelocityAccess;
+import de.intevation.flys.artifacts.model.CalculationResult;
+import de.intevation.flys.artifacts.model.DataFacet;
+import de.intevation.flys.artifacts.model.FacetTypes;
+import de.intevation.flys.artifacts.model.FlowVelocityCalculation;
+import de.intevation.flys.artifacts.model.FlowVelocityData;
+import de.intevation.flys.artifacts.model.FlowVelocityFacet;
+import de.intevation.flys.artifacts.resources.Resources;
+
+
+public class FlowVelocityState extends DefaultState implements FacetTypes {
+
+    private static Logger logger = Logger.getLogger(FlowVelocityState.class);
+
+
+    public static final String I18N_MAINCHANNEL_FACET =
+        "facet.flow_velocity.mainchannel";
+
+    public static final String I18N_TOTALCHANNEL_FACET =
+        "facet.flow_velocity.totalchannel";
+
+    public static final String I18N_TAU_FACET =
+        "facet.flow_velocity.tauchannel";
+
+
+    @Override
+    public Object computeAdvance(
+        FLYSArtifact artifact,
+        String       hash,
+        CallContext  context,
+        List<Facet>  facets,
+        Object       old
+    ) {
+        logger.debug("FlowVelocityState.computeAdvance");
+
+        List<Facet> newFacets = new ArrayList<Facet>();
+
+        FlowVelocityAccess access = new FlowVelocityAccess(artifact);
+
+        CalculationResult res = old instanceof CalculationResult
+            ? (CalculationResult) old
+            : new FlowVelocityCalculation().calculate(access);
+
+        if (facets == null || res == null) {
+            return res;
+        }
+
+        FlowVelocityData[] data = (FlowVelocityData[]) res.getData();
+
+        logger.debug("Calculated " + data.length + " FlowVelocityData objects");
+
+        String id  = getID();
+        int    idx = 0;
+
+        for (FlowVelocityData d: data) {
+            logger.error("TODO: Implement Facet creation for chart!");
+
+            newFacets.add(new FlowVelocityFacet(
+                idx,
+                FLOW_VELOCITY_MAINCHANNEL,
+                buildMainChannelName(artifact, context, d),
+                ComputeType.ADVANCE,
+                id,
+                hash
+            ));
+
+            newFacets.add(new FlowVelocityFacet(
+                idx,
+                FLOW_VELOCITY_TOTALCHANNEL,
+                buildTotalChannelName(artifact, context, d),
+                ComputeType.ADVANCE,
+                id,
+                hash
+            ));
+
+            newFacets.add(new FlowVelocityFacet(
+                idx,
+                FLOW_VELOCITY_TAU,
+                buildTauName(artifact, context, d),
+                ComputeType.ADVANCE,
+                id,
+                hash
+            ));
+
+            idx++;
+        }
+
+        Facet csv = new DataFacet(
+            CSV, "CSV data", ComputeType.ADVANCE, hash, id);
+
+        // TODO ADD PDF FACET
+
+        newFacets.add(csv);
+
+        logger.debug("Created " + newFacets.size() + " new Facets.");
+
+        facets.addAll(newFacets);
+
+        return res;
+    }
+
+
+    protected String buildFacetName(
+        FLYSArtifact     flys,
+        CallContext      cc,
+        FlowVelocityData data,
+        String           resourceId
+    ) {
+        Object[] args = new Object[] {
+            data.getZone()
+        };
+
+        return Resources.getMsg(
+            cc.getMeta(),
+            resourceId,
+            resourceId,
+            args);
+    }
+
+
+    protected String buildMainChannelName(
+        FLYSArtifact     flys,
+        CallContext      cc,
+        FlowVelocityData data
+    ) {
+        return buildFacetName(flys, cc, data, I18N_MAINCHANNEL_FACET);
+    }
+
+
+    protected String buildTotalChannelName(
+        FLYSArtifact     flys,
+        CallContext      cc,
+        FlowVelocityData data
+    ) {
+        return buildFacetName(flys, cc, data, I18N_TOTALCHANNEL_FACET);
+    }
+
+
+    protected String buildTauName(
+        FLYSArtifact     flys,
+        CallContext      cc,
+        FlowVelocityData data
+    ) {
+        return buildFacetName(flys, cc, data, I18N_TAU_FACET);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :