--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/bundu/bezugswst/BunduWstWQFixing.java	Thu Jul 19 17:54:10 2018 +0200
@@ -0,0 +1,53 @@
+/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+package org.dive4elements.river.artifacts.bundu.bezugswst;
+
+import org.apache.log4j.Logger;
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.river.artifacts.D4EArtifact;
+import org.dive4elements.river.artifacts.model.RangeWithValues;
+import org.dive4elements.river.artifacts.states.WQAdapted;
+
+/**
+ * State to input W/Q data for fixings
+ * 
+ * @author <a href="mailto:aheinecke@intevation.de">Andre Heinecke</a>
+ */
+public class BunduWstWQFixing extends WQAdapted {
+
+    /** The log used in this state. */
+    private static Logger log = Logger.getLogger(BunduWstWQFixing.class);
+
+    /** Simple sanity check if values are positive numbers **/
+    @Override
+    public boolean validate(final Artifact artifact) throws IllegalArgumentException {
+        log.debug("BunduWstWQFixing.validate");
+
+        final RangeWithValues[] rwvs = extractInput(getData((D4EArtifact) artifact, "wq_values"));
+
+        if (rwvs == null) {
+            throw new IllegalArgumentException("error_missing_wq_data");
+        }
+
+        for (final RangeWithValues rwv : rwvs) {
+            final double[] values = rwv.getValues();
+            for (final double val : values) {
+                if (val <= 0) {
+                    throw new IllegalArgumentException("error_validate_positive");
+                }
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    protected String getUIProvider() {
+        return "bundu_wst_wq_panel";
+    }
+}