view flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RiverSelect.java @ 4496:d8992459b408

Add method to return the facets of an artifact This methos should be used to get the facets of an artifact instead of accessing the facets member variable directly.
author Björn Ricks <bjoern.ricks@intevation.de>
date Wed, 14 Nov 2012 11:11:04 +0100
parents 8e66293c5369
children
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package de.intevation.flys.artifacts.states;

import java.util.List;

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.FLYSArtifact;
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);


        // XXX: DEAD CODE
        /*
        Element choices = ProtocolUtils.createArtNode(
            cr, "choices", null, null);
        */

        select.appendChild(label);

        label.setTextContent(Resources.getMsg(
            context.getMeta(),
            getID(),
            getID()));

        return select;
    }


    @Override
    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)
    throws IllegalArgumentException
    {
        logger.debug("RiverSelect.validate");

        FLYSArtifact flys = (FLYSArtifact) artifact;

        StateData dRiver = getData(flys, "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";
    }
}
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