--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/util/CalculationUtils.java	Wed Feb 28 17:27:15 2018 +0100
@@ -0,0 +1,37 @@
+/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
+ * Software engineering by
+ *  Björnsen Beratende Ingenieure GmbH
+ *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
+ *
+ * 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.sinfo.util;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.ArtifactDatabase;
+import org.dive4elements.artifacts.CallContext;
+
+/**
+ * @author Gernot Belger
+ */
+public final class CalculationUtils {
+
+
+    private CalculationUtils() {
+        throw new UnsupportedOperationException("Helper class");
+    }
+
+    /**
+     * Find the the user of the given artifact, sadly this is not part of the calling context, so instead we determine the
+     * owner oft the artifact
+     *
+     * @param artifact
+     * @param context
+     */
+    public static String findArtifactUser(final CallContext context, final Artifact artifact) {
+        final ArtifactDatabase database = context.getDatabase();
+        return database.findArtifactUser(artifact.identifier());
+    }
+}
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