--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/artifacts/states/AnnotationRiverState.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,71 @@
+package org.dive4elements.river.artifacts.states;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.dive4elements.artifacts.CallMeta;
+
+import org.dive4elements.artifactdatabase.state.Facet;
+
+import org.dive4elements.river.artifacts.AnnotationArtifact;
+import org.dive4elements.river.artifacts.FLYSArtifact;
+
+import org.dive4elements.river.artifacts.model.AnnotationFacet;
+import org.dive4elements.river.artifacts.model.FacetTypes;
+
+import org.dive4elements.river.artifacts.resources.Resources;
+
+
+/**
+ * The only state for an AnnotationArtifact (River is known).
+ */
+public class AnnotationRiverState
+extends      DefaultState
+implements   FacetTypes
+{
+    /** Developer-centric description of facet. */
+    public static final String I18N_DESCRIPTION = "facet.longitudinal_section.annotations";
+
+    /** The logger that is used in this state. */
+    private static final Logger logger = Logger.getLogger(AnnotationRiverState.class);
+
+
+    /**
+     * Add an AnnotationFacet to list of Facets.
+     *
+     * @param artifact Ignored.
+     * @param hash Ignored.
+     * @param context Ignored.
+     * @param meta CallMeta to be used for internationalization.
+     * @param facets List to add AnnotationFacet to.
+     *
+     * @return null.
+     */
+    @Override
+    public Object computeInit(
+        FLYSArtifact artifact,
+        String       hash,
+        Object       context,
+        CallMeta     meta,
+        List<Facet>  facets
+    ) {
+        logger.debug("AnnotationRiverState.computeInit()");
+
+        AnnotationArtifact annotationArtifact = (AnnotationArtifact) artifact;
+
+        String facetName = annotationArtifact.getFilterName();
+        if (facetName == null) {
+            facetName = Resources.getMsg(meta, I18N_DESCRIPTION, I18N_DESCRIPTION);
+        }
+
+        AnnotationFacet facet = new AnnotationFacet(
+            0,
+            LONGITUDINAL_ANNOTATION,
+            facetName);
+        facets.add(facet);
+
+        return null;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :