--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/uinfo/UINFOArtifact.java	Thu Apr 12 19:13:39 2018 +0200
@@ -0,0 +1,87 @@
+/* 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.uinfo;
+
+import org.apache.commons.lang.StringUtils;
+import org.dive4elements.artifactdatabase.state.Facet;
+import org.dive4elements.artifactdatabase.state.FacetActivity;
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.river.artifacts.D4EArtifact;
+
+/**
+ * The default SINFO artifact.
+ *
+ * @author Gernot Belger
+ */
+public class UINFOArtifact extends D4EArtifact {
+
+	private static final long serialVersionUID = 1L;
+
+	/** Error message that is thrown if no mode has been chosen. */
+	private static final String ERROR_NO_CALCULATION_MODE = "error_feed_no_calculation_mode";
+
+	/**
+	 * Error message that is thrown if an invalid calculation mode has been chosen.
+	 */
+	private static final String ERROR_INVALID_CALCULATION_MODE = "error_feed_invalid_calculation_mode";
+
+	/** The name of the artifact. */
+	private static final String ARTIFACT_NAME = "uinfo";
+
+	private static final String FIELD_RIVER = "river";
+
+	private static final String FIELD_MODE = "calculation_mode";
+
+	static {
+		// Active/deactivate facets.
+		// BEWARE: we can only define one activity for "sinfo", so we use the artifact
+		// as place for this
+		FacetActivity.Registry.getInstance().register(ARTIFACT_NAME, new FacetActivity() {
+			@Override
+			public Boolean isInitialActive(final Artifact artifact, final Facet facet, final String output) {
+				return null;
+			}
+		});
+	}
+
+	/**
+	 * Default constructor, because it's serializable.
+	 */
+	public UINFOArtifact() {
+	}
+
+	/**
+	 * Returns the name of the concrete artifact.
+	 *
+	 * @return the name of the concrete artifact.
+	 */
+	@Override
+	public String getName() {
+		return ARTIFACT_NAME;
+	}
+
+	public UinfoCalcMode getCalculationMode() {
+
+		final String calc = getDataAsString(FIELD_MODE);
+		if (calc == null) {
+			throw new IllegalArgumentException(ERROR_NO_CALCULATION_MODE);
+		}
+
+		try {
+			return UinfoCalcMode.valueOf(StringUtils.trimToEmpty(calc).toLowerCase());
+		} catch (final Exception e) {
+			throw new IllegalArgumentException(ERROR_INVALID_CALCULATION_MODE, e);
+		}
+	}
+
+	public String getRiver() {
+		return getDataAsString(FIELD_RIVER);
+	}
+}
\ No newline at end of file