--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/minfo/BedQualityState.java	Tue Sep 11 14:46:09 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/minfo/BedQualityState.java	Wed Sep 12 13:37:58 2012 +0000
@@ -1,7 +1,49 @@
 package de.intevation.flys.artifacts.states.minfo;
 
+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.BedQualityAccess;
+import de.intevation.flys.artifacts.model.BedQualityCalculation;
+import de.intevation.flys.artifacts.model.CalculationResult;
 import de.intevation.flys.artifacts.states.DefaultState;
 
 public class BedQualityState extends DefaultState {
+    
+    private static final Logger logger = Logger.getLogger(BedQualityState.class);
+    
+    @Override
+    public Object computeAdvance(
+        FLYSArtifact artifact,
+        String       hash,
+        CallContext  context,
+        List<Facet>  facets,
+        Object       old
+    ) {
+        logger.debug("BedQualityState.computeAdvance");
 
+        List<Facet> newFacets = new ArrayList<Facet>();
+
+        BedQualityAccess access = new BedQualityAccess(artifact);
+
+        CalculationResult res = old instanceof CalculationResult
+            ? (CalculationResult) old
+            : new BedQualityCalculation().calculate(access);
+
+        if (facets == null || res == null) {
+            return res;
+        }
+
+        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 :
\ No newline at end of file