--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/states/MiddleBedHeight.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,97 @@
+package org.dive4elements.river.artifacts.states;
+
+import java.util.ArrayList;
+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.access.BedHeightAccess;
+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.model.MiddleBedHeightData;
+import org.dive4elements.river.artifacts.model.MiddleBedHeightFacet;
+import org.dive4elements.river.artifacts.model.MiddleBedHeightCalculation;
+
+
+/** State in which Middle Bed Heights are generated. */
+public class MiddleBedHeight extends DefaultState implements FacetTypes {
+
+    /** Private logger. */
+    private static final Logger logger = Logger.getLogger(MiddleBedHeight.class);
+
+
+    @Override
+    public Object computeAdvance(
+        FLYSArtifact artifact,
+        String       hash,
+        CallContext  context,
+        List<Facet>  facets,
+        Object       old
+    ) {
+        logger.debug("MiddleBedHeight.computeAdvance");
+
+        List<Facet> newFacets = new ArrayList<Facet>();
+
+        BedHeightAccess access = new BedHeightAccess(artifact, context);
+
+        CalculationResult res = old instanceof CalculationResult
+            ? (CalculationResult) old
+            : new MiddleBedHeightCalculation().calculate(access);
+
+        if (facets == null || res == null) {
+            return res;
+        }
+
+        MiddleBedHeightData[] data = (MiddleBedHeightData[]) res.getData();
+
+        logger.debug("Calculated " + data.length + " MiddleBedHeightData objects");
+
+        String id  = getID();
+        int    idx = 0;
+
+        for (MiddleBedHeightData d: data) {
+            if (d.getStartYear() == d.getEndYear()) {
+                newFacets.add(new MiddleBedHeightFacet(
+                    idx,
+                    MIDDLE_BED_HEIGHT_SINGLE,
+                    d.getSoundingName(context),
+                    ComputeType.ADVANCE,
+                    id,
+                    hash
+                ));
+            }
+            else {
+                newFacets.add(new MiddleBedHeightFacet(
+                    idx,
+                    MIDDLE_BED_HEIGHT_EPOCH,
+                    d.getSoundingName(context),
+                    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;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :