--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixDerivateFacet.java	Fri Jun 29 13:42:06 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixDerivateFacet.java	Fri Jun 29 15:40:43 2012 +0000
@@ -60,50 +60,50 @@
      */
     @Override
     public Object getData(Artifact artifact, CallContext context) {
-        logger.debug("FixDerivateFacet.getData");
-        if (artifact instanceof FLYSArtifact) {
-            FLYSArtifact flys = (FLYSArtifact)artifact;
-            FixationArtifactAccess access = new FixationArtifactAccess(flys);
-
-            CalculationResult res =
-                (CalculationResult) flys.compute(context,
-                                                 ComputeType.ADVANCE,
-                                                 false);
-
-            FixResult result = (FixResult) res.getData();
-            double currentKm =
-                ((Double)context.getContextValue("currentKm")).doubleValue();
-
-            String function = access.getFunction();
-            Function ff = FunctionFactory.getInstance().getFunction(function);
-            Function.Derivative fd = ff.getDerivative();
 
-            Parameters params = result.getParameters();
-            double maxQ = FixFacetUtils.getMaxQ(params, currentKm);
-
-            String[] paramNames = ff.getParameterNames();
-
-            double[] coeffs = params.interpolate("km", currentKm, paramNames);
-            if(coeffs == null) {
-                logger.warn("getData: coeffs == null");
-                return null;
-            }
-
-            de.intevation.flys.artifacts.math.Function mf =
-                fd.instantiate(coeffs);
-
-            FixFunction fix = new FixFunction(
-                "",
-                ff.getDescription(),
-                mf,
-                maxQ);
-
-            return fix;
-        }
-        else {
+        logger.debug("FixDerivateFacet.getData");
+        if (!(artifact instanceof FLYSArtifact)) {
             logger.debug("Not an instance of FixationArtifact.");
             return null;
         }
+
+        FLYSArtifact flys = (FLYSArtifact)artifact;
+        FixationArtifactAccess access = new FixationArtifactAccess(flys);
+
+        CalculationResult res =
+            (CalculationResult) flys.compute(context,
+                                             ComputeType.ADVANCE,
+                                             false);
+
+        FixResult result = (FixResult) res.getData();
+        double currentKm =
+            ((Double)context.getContextValue("currentKm")).doubleValue();
+
+        String function = access.getFunction();
+        Function ff = FunctionFactory.getInstance().getFunction(function);
+        Function.Derivative fd = ff.getDerivative();
+
+        Parameters params = result.getParameters();
+        double maxQ = FixFacetUtils.getMaxQ(params, currentKm);
+
+        String[] paramNames = ff.getParameterNames();
+
+        double[] coeffs = params.interpolate("km", currentKm, paramNames);
+        if (coeffs == null) {
+            logger.warn("getData: coeffs == null");
+            return null;
+        }
+
+        de.intevation.flys.artifacts.math.Function mf =
+            fd.instantiate(coeffs);
+
+        FixFunction fix = new FixFunction(
+            "",
+            fd.getDescription(),
+            mf,
+            maxQ);
+
+        return fix;
     }