--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RiverSelect.java	Fri Sep 28 12:14:10 2012 +0200
@@ -0,0 +1,162 @@
+package de.intevation.flys.artifacts.states;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.CallContext;
+
+import de.intevation.artifacts.common.utils.XMLUtils;
+
+import de.intevation.artifactdatabase.ProtocolUtils;
+import de.intevation.artifactdatabase.data.StateData;
+
+import de.intevation.flys.model.River;
+
+import de.intevation.flys.artifacts.model.RiverFactory;
+import de.intevation.flys.artifacts.resources.Resources;
+
+
+/**
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class RiverSelect extends DefaultState {
+
+    /** The logger used in this class. */
+    private static Logger logger = Logger.getLogger(RiverSelect.class);
+
+
+    /** Error message that is thrown if no river was found based on a given
+     * name.*/
+    public static final String ERROR_NO_SUCH_RIVER =
+        "error_feed_no_such_river";
+
+    /** Error message that is thrown if no river was found based on a given
+     * name.*/
+    public static final String ERROR_NO_RIVER_SELECTED =
+        "error_feed_no_river_selected";
+
+
+    /**
+     * The default constructor that initializes an empty State object.
+     */
+    public RiverSelect() {
+    }
+
+
+    /**
+     * Initialize the state based on the state node in the configuration.
+     *
+     * @param config The state configuration node.
+     */
+    public void setup(Node config) {
+        super.setup(config);
+    }
+
+
+    protected Element createData(
+        XMLUtils.ElementCreator cr,
+        Artifact    artifact,
+        StateData   data,
+        CallContext context)
+    {
+        Element select = ProtocolUtils.createArtNode(
+            cr, "select",
+            new String[] { "uiprovider" },
+            new String[] { "select_with_map" });
+        cr.addAttr(select, "name", data.getName(), true);
+
+        Element label = ProtocolUtils.createArtNode(
+            cr, "label", null, null);
+
+        Element choices = ProtocolUtils.createArtNode(
+            cr, "choices", null, null);
+
+        select.appendChild(label);
+
+        label.setTextContent(Resources.getMsg(
+            context.getMeta(),
+            getID(),
+            getID()));
+
+        return select;
+    }
+
+
+    protected Element[] createItems(
+        XMLUtils.ElementCreator cr,
+        Artifact    artifact,
+        String      name,
+        CallContext context)
+    {
+        List<River> rivers = RiverFactory.getRivers();
+        Element[] items    = new Element[rivers.size()];
+
+        int idx = 0;
+        for (River river: rivers) {
+            items[idx++] = createRiverItem(cr, river);
+        }
+
+        return items;
+    }
+
+
+    /**
+     * This method creates a node that represents a river item. This node
+     * contains the label and the value that describe the river.
+     *
+     * @param cr The ElementCreator.
+     * @param river The river.
+     *
+     * @return the element that contains the information about the river.
+     */
+    protected Element createRiverItem(XMLUtils.ElementCreator cr, River river) {
+        Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
+        Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
+        Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
+
+        label.setTextContent(river.getName());
+        value.setTextContent(river.getName());
+
+        item.appendChild(label);
+        item.appendChild(value);
+
+        return item;
+    }
+
+
+    @Override
+    public boolean validate(Artifact artifact, CallContext context)
+    throws IllegalArgumentException
+    {
+        logger.debug("RiverSelect.validate");
+
+        Map<String, StateData> data = getData();
+
+        StateData dRiver = data.get("river");
+
+        if (dRiver == null || dRiver.getValue() == null) {
+            throw new IllegalArgumentException(ERROR_NO_RIVER_SELECTED);
+        }
+
+        River river = RiverFactory.getRiver((String) dRiver.getValue());
+
+        if (river == null) {
+            throw new IllegalArgumentException(ERROR_NO_SUCH_RIVER);
+        }
+
+        return true;
+    }
+
+
+    @Override
+    protected String getUIProvider() {
+        return "river_panel";
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :