--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/MiddleBedHeightCalculation.java	Fri Sep 05 12:54:58 2014 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/MiddleBedHeightCalculation.java	Fri Sep 05 12:58:17 2014 +0200
@@ -23,22 +23,22 @@
 
 public class MiddleBedHeightCalculation extends Calculation {
 
-    private static final Logger logger =
+    private static final Logger log =
         Logger.getLogger(MiddleBedHeightCalculation.class);
 
 
     public CalculationResult calculate(BedHeightAccess access) {
-        logger.info("MiddleBedHeightCalculation.calculate");
+        log.info("MiddleBedHeightCalculation.calculate");
 
         int[] singleIds = access.getBedHeightSingleIDs();
 
 
-        if (logger.isDebugEnabled()) {
+        if (log.isDebugEnabled()) {
             Artifact artifact = access.getArtifact();
 
-            logger.debug("Artifact '" + artifact.identifier() + "' contains:");
+            log.debug("Artifact '" + artifact.identifier() + "' contains:");
             if (singleIds != null) {
-                logger.debug("   " + singleIds.length + " single bedheight ids");
+                log.debug("   " + singleIds.length + " single bedheight ids");
             }
         }
 
@@ -61,7 +61,7 @@
                 singles.add(s);
             }
             else {
-                logger.warn("Cannot find Single by id: " + id);
+                log.warn("Cannot find Single by id: " + id);
                 // TODO ADD WARNING
             }
         }
@@ -74,7 +74,7 @@
         BedHeightAccess       access,
         List<BedHeightSingle> singles
     ) {
-        logger.info("MiddleBedHeightCalculation.buildCalculationResult");
+        log.info("MiddleBedHeightCalculation.buildCalculationResult");
 
         double kmLo = access.getLowerKM();
         double kmHi = access.getUpperKM();
@@ -89,7 +89,7 @@
             }
         }
 
-        logger.debug("Calculation results in " + data.size() + " data objects.");
+        log.debug("Calculation results in " + data.size() + " data objects.");
 
         return new CalculationResult((MiddleBedHeightData[])
             data.toArray(new MiddleBedHeightData[data.size()]), this);
@@ -101,7 +101,7 @@
         double kmLo,
         double kmHi
     ) {
-        logger.debug("Prepare data for single: " + single.getDescription());
+        log.debug("Prepare data for single: " + single.getDescription());
 
         List<BedHeightSingleValue> values =
             BedHeightSingleValue.getBedHeightSingleValues(single, kmLo, kmHi);
@@ -157,7 +157,7 @@
             }
         }
 
-        logger.debug("Single contains " + values.size() + " values");
+        log.debug("Single contains " + values.size() + " values");
 
         return data;
     }