--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/CalculationSelect.java	Fri Sep 28 12:14:10 2012 +0200
@@ -0,0 +1,133 @@
+package de.intevation.flys.artifacts.states;
+
+import java.util.Map;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Element;
+
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+
+import de.intevation.artifacts.common.utils.XMLUtils;
+
+import de.intevation.artifactdatabase.ProtocolUtils;
+import de.intevation.artifactdatabase.data.StateData;
+
+import de.intevation.flys.artifacts.resources.Resources;
+
+/**
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class CalculationSelect extends DefaultState {
+
+    /** The logger that is used in this class.*/
+    private static Logger logger = Logger.getLogger(CalculationSelect.class);
+
+
+    /** Constant value for the reference line calculation.*/
+    public static final String CALCULATION_SURFACE_CURVE =
+        "calc.surface.curve";
+
+    /** Constant value for the differences calculation.*/
+    public static final String CALCULATION_DURATION_CURVE =
+        "calc.duration.curve";
+
+    /** Constant value for the flood map calculation.*/
+    public static final String CALCULATION_FLOOD_MAP =
+        "calc.flood.map";
+
+    /** Constant value for the profile calculation.*/
+    public static final String CALCULATION_DISCHARGE_LONGITUDINAL_CURVE =
+        "calc.discharge.longitudinal.section";
+
+    /** Constant value for the state discharge curve calculation.*/
+    public static final String CALCULATION_DISCHARGE_CURVE =
+        "calc.discharge.curve";
+
+    /** An array that holds all available calculation modes.*/
+    public static final String[] CALCULATIONS = {
+        CALCULATION_SURFACE_CURVE,
+        CALCULATION_FLOOD_MAP,
+        CALCULATION_DISCHARGE_CURVE,
+        CALCULATION_DURATION_CURVE,
+        CALCULATION_DISCHARGE_LONGITUDINAL_CURVE };
+
+
+    /** Error message that is thrown if no mode has been chosen.*/
+    public 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.*/
+    public static  final String ERROR_INVALID_CALCULATION_MODE =
+        "error_feed_invalid_calculation_mode";
+
+
+    protected Element[] createItems(
+        XMLUtils.ElementCreator cr,
+        Artifact    artifact,
+        String      name,
+        CallContext context)
+    {
+        CallMeta meta   = context.getMeta();
+        Element[] calcs = new Element[CALCULATIONS.length];
+
+        int i = 0;
+
+        for (String calc: CALCULATIONS) {
+            calcs[i++] = createItem(
+                cr, new String[] {
+                    Resources.getMsg(meta, calc, calc),
+                    calc
+                });
+        }
+
+        return calcs;
+    }
+
+
+    protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
+        Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
+        Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
+        Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
+
+        String[] arr = (String[]) obj;
+
+        label.setTextContent(arr[0]);
+        value.setTextContent(arr[1]);
+
+        item.appendChild(label);
+        item.appendChild(value);
+
+        return item;
+    }
+
+
+    @Override
+    public boolean validate(Artifact artifact, CallContext context)
+    throws IllegalArgumentException
+    {
+        logger.debug("CalculationSelect.validate");
+
+        Map<String, StateData> data = getData();
+
+        String calc = (String) data.get("calculation_mode").getValue();
+
+        if (calc == null) {
+            throw new IllegalArgumentException(ERROR_NO_CALCULATION_MODE);
+        }
+
+        calc = calc.trim().toLowerCase();
+
+        for (String mode: CALCULATIONS) {
+            if (mode.equals(calc)) {
+                return true;
+            }
+        }
+
+        throw new IllegalArgumentException(ERROR_INVALID_CALCULATION_MODE);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :