--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/artifacts/WQKmsInterpolArtifact.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,295 @@
+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.artifactdatabase.state.Facet;
+import org.dive4elements.artifactdatabase.state.FacetActivity;
+import org.dive4elements.artifactdatabase.state.DefaultOutput;
+import org.dive4elements.artifactdatabase.state.State;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.ArtifactFactory;
+import org.dive4elements.artifacts.CallMeta;
+
+import org.dive4elements.river.artifacts.model.FacetTypes;
+import org.dive4elements.river.artifacts.model.WQKms;
+import org.dive4elements.river.artifacts.model.WQFacet;
+import org.dive4elements.river.artifacts.model.WKmsFactory;
+import org.dive4elements.river.artifacts.model.WQKmsFactory;
+import org.dive4elements.river.artifacts.model.WstValueTable;
+import org.dive4elements.river.artifacts.model.WstValueTableFactory;
+
+import org.dive4elements.river.artifacts.states.StaticState;
+import org.dive4elements.river.artifacts.resources.Resources;
+
+
+/**
+ * Artifact to access additional "waterlevel/discharge"-type of data, like
+ * fixation measurements, but doing so with costy interpolation.
+ *
+ * This artifact neglects (Static)FLYSArtifacts capabilities of interaction
+ * with the StateEngine by overriding the getState*-methods.
+ */
+public class WQKmsInterpolArtifact
+extends      StaticFLYSArtifact
+implements   FacetTypes
+{
+    /** The logger for this class. */
+    private static Logger logger =
+        Logger.getLogger(WQKmsInterpolArtifact.class);
+
+    /** State name. */
+    public static final String STATIC_STATE_NAME =
+        "state.additional_wqkms.interpol.static";
+
+    /** Artifact name. */
+    private static final String NAME = "staticwqkmsinterpol";
+
+    static {
+        // TODO: Move to configuration.
+        FacetActivity.Registry.getInstance()
+            .register(NAME, FacetActivity.INACTIVE);
+    }
+
+    /** One and only state to be in. */
+    protected transient State state = null;
+
+
+    /**
+     * Trivial Constructor.
+     */
+    public WQKmsInterpolArtifact() {
+        logger.debug("WQKmsInterpolArtifact.WQKmsInterpolArtifact");
+    }
+
+
+    /** Return fixed artifact (types) name. */
+    @Override
+    public String getName() {
+        return NAME;
+    }
+
+
+    /**
+     * Gets called from factory, to set things up.
+     */
+    @Override
+    public void setup(
+        String          identifier,
+        ArtifactFactory factory,
+        Object          context,
+        CallMeta        callMeta,
+        Document        data)
+    {
+        logger.debug("WQKmsInterpolArtifact.setup");
+
+        state = new StaticState(STATIC_STATE_NAME);
+
+        List<Facet> fs = new ArrayList<Facet>();
+        String code = getDatacageIDValue(data);
+
+        // TODO Go for JSON, one day.
+        //ex.: flood_protection-wstv-114-12
+        if (code != null) {
+            String [] parts = code.split("-");
+
+            logger.debug("WQKmsInterpolArtifact.setup: code " + code);
+
+            if (parts.length >= 4) {
+                int wst = Integer.parseInt(parts[3]);
+                int col = -1;
+                String colpos = parts[2];
+                // Are we interested in a single column or in all columns?
+                if (colpos.equals("A")) {
+                    ; // Take all.
+                }
+                else {
+                    col = Integer.parseInt(colpos);
+                    addStringData("col_pos", parts[2]);
+                }
+                addStringData("wst_id",  parts[3]);
+                String wkmsName = (col >= 0)
+                                ? WKmsFactory.getWKmsName(col, wst)
+                                : WKmsFactory.getWKmsName(wst);
+                String name;
+                if (parts[0].startsWith("height")){
+                    name = STATIC_WQ_ANNOTATIONS;
+                }
+                else if (parts[0].startsWith("flood")) {
+                    name = STATIC_WKMS_INTERPOL;
+                }
+                else {
+                    name = STATIC_WQ;
+                }
+
+                Facet wQFacet = new WQFacet(name,
+                    Resources.getMsg(
+                        callMeta,
+                        wkmsName,
+                        wkmsName));
+                fs.add(wQFacet);
+                addFacets(state.getID(), fs);
+            }
+        }
+        else {
+            logger.warn("WQKmsInterpolArtifact: no code");
+        }
+
+        spawnState();
+        super.setup(identifier, factory, context, callMeta, data);
+    }
+
+
+    /**
+     * Initialize the static state with output.
+     * @return static state
+     */
+    protected State spawnState() {
+        state = new StaticState(STATIC_STATE_NAME);
+        List<Facet> fs = getFacets(STATIC_STATE_NAME);
+        DefaultOutput output = new DefaultOutput(
+            "general",
+            "general",
+            "image/png",
+            fs,
+            "chart");
+
+        state.getOutputs().add(output);
+
+        return state;
+    }
+
+
+    /**
+     * Called via setup.
+     *
+     * @param artifact The master-artifact.
+     */
+    @Override
+    protected void initialize(
+        Artifact artifact,
+        Object context,
+        CallMeta meta)
+    {
+        logger.debug("WQKmsInterpolArtifact.initialize");
+        FLYSArtifact winfo = (FLYSArtifact) artifact;
+        importData(winfo, "river");
+        importData(winfo, "ld_locations");
+    }
+
+
+    /**
+     * 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(getState());
+        return states;
+    }
+
+
+    /**
+     * Get WQ at a given km.
+     * @param currentKm the requested km. If NULL, ld_location data
+     *        will be used.
+     */
+    public double [][] getWQAtKm(Double currentKm) {
+
+        WstValueTable interpolator = null;
+        // Get WstValueTable
+        if (getDataAsString("col_pos") != null) {
+            interpolator = WstValueTableFactory.getWstColumnTable(
+                getDataAsInt("wst_id"), getDataAsInt("col_pos"));
+        }
+        else {
+            interpolator = WstValueTableFactory.getTable(
+                getDataAsInt("wst_id"));
+        }
+
+        Double tmp = (currentKm != null)
+                     ? currentKm
+                     : getDataAsDouble("ld_locations");
+
+        double [][] vs = interpolator.interpolateWQColumnwise(
+            tmp != null ? tmp : 0);
+
+        for (int x = 0; x < vs[1].length; x++) {
+            logger.debug("getWQAtKm: Q/W " + vs[0][x] + " / " + vs[1][x]);
+        }
+
+        return vs;
+    }
+
+
+    /**
+     * Get a DataItem casted to int (0 if fails).
+     */
+    public int getDataAsInt(String dataName) {
+        String val = getDataAsString(dataName);
+        try {
+            return Integer.parseInt(val);
+        }
+        catch (NumberFormatException e) {
+            logger.warn("Could not get data " + dataName + " as int", e);
+            return 0;
+        }
+    }
+
+
+    /**
+     * Get the "current" state (there is but one).
+     * @param cc ignored.
+     * @return the "current" (only possible) state.
+     */
+    @Override
+    public State getCurrentState(Object cc) {
+        return getState();
+    }
+
+
+    /**
+     * Get the only possible state.
+     * @return the state.
+     */
+    protected State getState() {
+        return getState(null, null);
+    }
+
+
+    /**
+     * Get the state.
+     * @param context ignored.
+     * @param stateID ignored.
+     * @return the state.
+     */
+    @Override
+    protected State getState(Object context, String stateID) {
+        return (state != null)
+            ? state
+            : spawnState();
+    }
+
+
+    /**
+     * Get WQKms from factory.
+     * @param idx param is not needed (TODO)
+     * @return WQKms according to parameterization (can be null);
+     */
+    public WQKms getWQKms(int idx) {
+        logger.debug("WQKmsInterpolArtifact.getWQKms");
+        logger.warn("Stub, getWQKms not yet implemented.");
+
+        return WQKmsFactory.getWQKms(
+            Integer.parseInt(getDataAsString("col_pos")),
+            Integer.parseInt(getDataAsString("wst_id")));
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :