ingo@109: package de.intevation.flys.artifacts.states;
ingo@109: 
ingo@115: import java.util.List;
ingo@115: 
ingo@109: import org.apache.log4j.Logger;
ingo@109: 
ingo@115: import org.w3c.dom.Element;
ingo@109: import org.w3c.dom.Node;
ingo@109: 
ingo@313: import de.intevation.artifacts.Artifact;
ingo@109: import de.intevation.artifacts.CallContext;
ingo@109: 
ingo@115: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@115: 
ingo@115: import de.intevation.artifactdatabase.ProtocolUtils;
ingo@115: import de.intevation.artifactdatabase.data.StateData;
ingo@109: 
sascha@132: import de.intevation.flys.model.River;
sascha@132: 
ingo@624: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@115: import de.intevation.flys.artifacts.model.RiverFactory;
ingo@126: import de.intevation.flys.artifacts.resources.Resources;
ingo@115: 
ingo@109: 
ingo@109: /**
ingo@109:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@109:  */
ingo@126: public class RiverSelect extends DefaultState {
ingo@109: 
ingo@109:     /** The logger used in this class. */
ingo@109:     private static Logger logger = Logger.getLogger(RiverSelect.class);
ingo@109: 
ingo@324: 
ingo@324:     /** Error message that is thrown if no river was found based on a given
ingo@324:      * name.*/
ingo@324:     public static final String ERROR_NO_SUCH_RIVER =
ingo@324:         "error_feed_no_such_river";
ingo@324: 
ingo@324:     /** Error message that is thrown if no river was found based on a given
ingo@324:      * name.*/
ingo@324:     public static final String ERROR_NO_RIVER_SELECTED =
ingo@324:         "error_feed_no_river_selected";
ingo@324: 
ingo@324: 
ingo@109:     /**
ingo@109:      * The default constructor that initializes an empty State object.
ingo@109:      */
ingo@109:     public RiverSelect() {
ingo@109:     }
ingo@109: 
ingo@109: 
ingo@109:     /**
ingo@109:      * Initialize the state based on the state node in the configuration.
ingo@109:      *
ingo@109:      * @param config The state configuration node.
ingo@109:      */
ingo@109:     public void setup(Node config) {
ingo@109:         super.setup(config);
ingo@109:     }
ingo@109: 
ingo@109: 
ingo@126:     protected Element createData(
ingo@126:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@126:         StateData   data,
ingo@126:         CallContext context)
ingo@109:     {
ingo@126:         Element select = ProtocolUtils.createArtNode(
ingo@126:             cr, "select",
ingo@126:             new String[] { "uiprovider" },
ingo@126:             new String[] { "select_with_map" });
ingo@304:         cr.addAttr(select, "name", data.getName(), true);
ingo@115: 
ingo@126:         Element label = ProtocolUtils.createArtNode(
ingo@126:             cr, "label", null, null);
ingo@115: 
ingo@126:         Element choices = ProtocolUtils.createArtNode(
ingo@126:             cr, "choices", null, null);
ingo@115: 
ingo@304:         select.appendChild(label);
ingo@304: 
ingo@126:         label.setTextContent(Resources.getMsg(
ingo@126:             context.getMeta(),
ingo@126:             getID(),
ingo@126:             getID()));
ingo@115: 
ingo@126:         return select;
ingo@126:     }
ingo@115: 
ingo@126: 
ingo@126:     protected Element[] createItems(
ingo@126:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@126:         String      name,
ingo@126:         CallContext context)
ingo@126:     {
ingo@126:         List<River> rivers = RiverFactory.getRivers();
ingo@126:         Element[] items    = new Element[rivers.size()];
ingo@126: 
ingo@126:         int idx = 0;
ingo@126:         for (River river: rivers) {
ingo@126:             items[idx++] = createRiverItem(cr, river);
ingo@115:         }
ingo@115: 
ingo@126:         return items;
ingo@115:     }
ingo@115: 
ingo@115: 
ingo@115:     /**
ingo@115:      * This method creates a node that represents a river item. This node
ingo@115:      * contains the label and the value that describe the river.
ingo@115:      *
ingo@115:      * @param cr The ElementCreator.
ingo@115:      * @param river The river.
ingo@115:      *
ingo@115:      * @return the element that contains the information about the river.
ingo@115:      */
ingo@115:     protected Element createRiverItem(XMLUtils.ElementCreator cr, River river) {
ingo@115:         Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
ingo@115:         Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
ingo@115:         Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
ingo@115: 
ingo@115:         label.setTextContent(river.getName());
ingo@115:         value.setTextContent(river.getName());
ingo@115: 
ingo@115:         item.appendChild(label);
ingo@115:         item.appendChild(value);
ingo@115: 
ingo@115:         return item;
ingo@109:     }
ingo@324: 
ingo@324: 
ingo@324:     @Override
ingo@324:     public boolean validate(Artifact artifact, CallContext context)
ingo@324:     throws IllegalArgumentException
ingo@324:     {
ingo@324:         logger.debug("RiverSelect.validate");
ingo@324: 
ingo@624:         FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@324: 
ingo@624:         StateData dRiver = getData(flys, "river");
ingo@324: 
ingo@324:         if (dRiver == null || dRiver.getValue() == null) {
ingo@324:             throw new IllegalArgumentException(ERROR_NO_RIVER_SELECTED);
ingo@324:         }
ingo@324: 
ingo@324:         River river = RiverFactory.getRiver((String) dRiver.getValue());
ingo@324: 
ingo@324:         if (river == null) {
ingo@324:             throw new IllegalArgumentException(ERROR_NO_SUCH_RIVER);
ingo@324:         }
ingo@324: 
ingo@324:         return true;
ingo@324:     }
ingo@424: 
ingo@424: 
ingo@424:     @Override
ingo@424:     protected String getUIProvider() {
ingo@424:         return "river_panel";
ingo@424:     }
ingo@109: }
ingo@109: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :