--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Calculation6.java	Wed Feb 01 13:32:10 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Calculation6.java	Wed Feb 01 13:33:58 2012 +0000
@@ -2,6 +2,8 @@
 
 import org.apache.log4j.Logger;
 
+import de.intevation.flys.model.Gauge;
+
 
 /**
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
@@ -10,14 +12,73 @@
 
     private static final Logger logger = Logger.getLogger(Calculation6.class);
 
+    private int      mode;
+    private int[]    timerange;
+    private double[] values;
 
-    public Calculation6() {
+
+    public static final int MODE_W = 0;
+    public static final int MODE_Q = 1;
+
+
+    public Calculation6(int mode, int[] timerange, double[] values) {
+        this.mode      = mode;
+        this.timerange = timerange;
+        this.values    = values;
     }
 
 
-    public CalculationResult calculate() {
+    public CalculationResult calculate(Gauge gauge) {
+        if (!checkParameters() || gauge == null) {
+            logger.warn("Parameters not valid for calculation.");
+
+            return null;
+        }
+
+        if (logger.isDebugEnabled()) {
+            debug();
+        }
+
         logger.warn("TODO: IMPLEMENT ME");
+
         return null;
     }
+
+
+    protected boolean checkParameters() {
+        if (!(mode == MODE_W || mode == MODE_Q)) {
+            logger.warn("Invalid mode '" + mode + "' for calculation.");
+            return false;
+        }
+
+        if (timerange == null || timerange.length < 2) {
+            logger.warn("Invalid timerange for calculation.");
+            return false;
+        }
+
+        if (values == null || values.length == 0) {
+            logger.warn("No values for W or Q specified.");
+            return false;
+        }
+
+        return true;
+    }
+
+
+    /**
+     * Writes the parameters used for this calculation to logger.
+     */
+    public void debug() {
+        StringBuilder sb = new StringBuilder();
+        for (double value: values) {
+            sb.append(String.valueOf(value) + " ");
+        }
+
+        logger.debug("========== Calculation6 ==========");
+        logger.debug("   Mode:         " + mode);
+        logger.debug("   Timerange:    " + timerange[0] + " - " + timerange[1]);
+        logger.debug("   Input values: " + sb.toString());
+        logger.debug("==================================");
+    }
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :