--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/artifacts/AreaArtifact.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,180 @@
+package org.dive4elements.river.artifacts;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.ArtifactFactory;
+import org.dive4elements.artifacts.CallMeta;
+
+import org.dive4elements.river.artifacts.model.AreaFacet;
+
+
+import org.dive4elements.river.artifacts.states.AreaCreationState;
+import org.dive4elements.river.artifacts.states.StaticState;
+
+import org.dive4elements.artifactdatabase.state.Facet;
+import org.dive4elements.artifactdatabase.state.State;
+
+
+/**
+ * Artifact describing the area between two WKms.
+ */
+public class AreaArtifact extends StaticFLYSArtifact {
+
+    /** Name of Artifact. */
+    public static final String AREA_ARTIFACT_NAME = "area_artifact";
+
+    /** Dataitem: Facet name. Facets with this name will be created (important
+     * to not have the area calculated in e.g. a CrossSection to be shown in
+     * LongitudinalSection.  */
+    protected static final String FACET_NAME = "area.facet";
+
+    /** Name of state. */
+    public static final String STATIC_STATE_NAME = "state.area_artifact";
+
+    /** data item name to access upper curve. */
+    protected static final String AREA_CURVE_OVER = "area.curve_over";
+
+    /** data item name to access lower curve. */
+    protected static final String AREA_CURVE_UNDER = "area.curve_under";
+
+    /** data item name to access whether or not paint over and under. */
+    protected static final String AREA_BETWEEN = "area.between";
+
+    /** Name of state. */
+    protected static final String AREA_NAME = "area.name";
+
+    /** Own logger. */
+    private static final Logger logger =
+        Logger.getLogger(AreaArtifact.class);
+
+
+    /** Return given name. */
+    @Override
+    public String getName() {
+        return AREA_ARTIFACT_NAME;
+    }
+
+
+    /** Store ids, create an AreaFacet. */
+    @Override
+    public void setup(
+        String          identifier,
+        ArtifactFactory factory,
+        Object          context,
+        CallMeta        callMeta,
+        Document        data)
+    {
+        logger.info("AreaArtifact.setup");
+
+        super.setup(identifier, factory, context, callMeta, data);
+
+        // TODO yet unused.
+        String ids = getDatacageIDValue(data);
+
+        // TODO this facet will be remodeled during next feed.
+        List<Facet> fs = new ArrayList<Facet>();
+        fs.add(new AreaFacet(0, "", "TODO: I am an AreaFacet"));
+
+        AreaCreationState state = (AreaCreationState) getCurrentState(context);
+
+        if (!fs.isEmpty()) {
+            addFacets(getCurrentStateId(), fs);
+        }
+    }
+
+    // TODO Data is not cached in this way.
+
+    /** Do not copy data from daddyfact. */
+    @Override
+    protected void initialize(
+        Artifact artifact,
+        Object   context,
+        CallMeta callMeta)
+    {
+        // do nothing
+    }
+
+
+    /**
+     * Get name of facets to create.
+     */
+    public String getFacetName() {
+        return getDataAsString(FACET_NAME);
+    }
+
+
+    /**
+     * Get dataprovider key for the 'lower' curve (we got that information fed
+     * from the client and store it as data).
+     */
+    public String getLowerDPKey() {
+        return getDataAsString(AREA_CURVE_UNDER);
+    }
+
+
+    /**
+     * True if the whole area between the two curves shall be filled.
+     */
+    public boolean getPaintBetween() {
+        String val = getDataAsString(AREA_BETWEEN);
+
+        return val != null && val.equals("true");
+    }
+
+
+    /**
+     * Get dataprovider key for the 'upper' curve (we got that information fed
+     * from the client and store it as data).
+     */
+    public String getUpperDPKey() {
+        return getDataAsString(AREA_CURVE_OVER);
+    }
+
+
+    /** Return data item that is used to configure name of area. */
+    public String getAreaName() {
+        return getDataAsString(AREA_NAME);
+    }
+
+
+    /**
+     * Create and return a new AreaCreationState with charting output.
+     */
+    @Override
+    public State getCurrentState(Object cc) {
+        final List<Facet> fs = getFacets(getCurrentStateId());
+
+        AreaCreationState state = new AreaCreationState();
+
+        StaticState.addDefaultChartOutput(state, "cross_section", fs);
+
+        return state;
+    }
+
+
+    /**
+     * Get a list containing the one and only State.
+     * @param  context ignored.
+     * @return list with one and only state.
+     */
+    @Override
+    protected List<State> getStates(Object context) {
+        ArrayList<State> states = new ArrayList<State>();
+        states.add(getCurrentState(context));
+
+        return states;
+    }
+
+
+    /** Trivia. */
+    protected State getState(Object context, String stateID) {
+        return getCurrentState(null);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :