ingo@1115: /*
ingo@1115:  * Copyright (c) 2010 by Intevation GmbH
ingo@1115:  *
ingo@1115:  * This program is free software under the LGPL (>=v2.1)
ingo@1115:  * Read the file LGPL.txt coming with the software for details
ingo@1115:  * or visit http://www.gnu.org/licenses/ if it does not exist.
ingo@1115:  */
ingo@1115: 
ingo@1038: package de.intevation.gnv.state;
ingo@1038: 
sascha@1117: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@1038: 
ingo@1038: import de.intevation.artifacts.CallContext;
ingo@1038: import de.intevation.artifacts.CallMeta;
ingo@1038: import de.intevation.artifacts.PreferredLocale;
ingo@1038: 
ingo@1038: import de.intevation.gnv.artifacts.ressource.RessourceFactory;
ingo@1038: 
ingo@1038: import org.apache.log4j.Logger;
ingo@1038: 
ingo@1038: import org.w3c.dom.Document;
ingo@1038: import org.w3c.dom.Element;
ingo@1038: import org.w3c.dom.Node;
ingo@1038: 
ingo@1038: 
ingo@1038: /**
ingo@1038:  * This task of this <code>State</code> implementation is to switch between
ingo@1038:  * working with vector or scalar data.
ingo@1038:  *
ingo@1038:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@1038:  */
ingo@1038: public class SwitchModeState extends StateBase {
ingo@1038: 
ingo@1038:     public static final String VECTOR_VALUE = "vector";
ingo@1038:     public static final String SCALAR_VALUE = "scalar";
ingo@1038: 
ingo@1038:     public static final String RESSOURCE_VECTOR = "vectorvalues";
ingo@1038:     public static final String RESSOURCE_SCALAR = "scalarvalues";
ingo@1038: 
ingo@1038:     private static Logger logger = Logger.getLogger(SwitchModeState.class);
ingo@1038: 
ingo@1038:     public SwitchModeState() {
ingo@1038:     }
ingo@1038: 
ingo@1038: 
ingo@1038:     @Override
ingo@1038:     protected void describeDynamic(
ingo@1038:         XMLUtils.ElementCreator artCreator,
ingo@1038:         XMLUtils.ElementCreator creator,
ingo@1038:         Document                document,
ingo@1038:         Node                    dynamic,
ingo@1038:         CallContext             context,
ingo@1038:         String                  uuid)
ingo@1038:     {
ingo@1038:         RessourceFactory ressource = RessourceFactory.getInstance();
ingo@1038:         CallMeta callMeta          = context.getMeta();
ingo@1038:         PreferredLocale[] locales  = callMeta.getLanguages();
ingo@1038: 
ingo@1038:         Element selectNode = creator.create("select1");
ingo@1038:         creator.addAttr(selectNode, "ref", dataName);
ingo@1038: 
ingo@1038:         Element labelNode = creator.create("label");
ingo@1038:         labelNode.setTextContent(ressource.getRessource(
ingo@1038:             locales, dataName, dataName));
ingo@1038:         selectNode.appendChild(labelNode);
ingo@1038: 
ingo@1038:         selectNode.appendChild(createChoices(creator, context));
ingo@1038:         dynamic.appendChild(selectNode);
ingo@1038:         logger.debug("creating dynamic ui elements finished");
ingo@1038:     }
ingo@1038: 
ingo@1038: 
ingo@1038:     protected Node createChoices(
ingo@1038:         XMLUtils.ElementCreator creator,
ingo@1038:         CallContext             context)
ingo@1038:     {
ingo@1038:         RessourceFactory ressource = RessourceFactory.getInstance();
ingo@1038:         CallMeta callMeta          = context.getMeta();
ingo@1038:         PreferredLocale[] locales  = callMeta.getLanguages();
ingo@1038: 
ingo@1038:         Element choiceNodes = creator.create("choices");
ingo@1038: 
ingo@1038:         // add choice for scalar values
ingo@1038:         logger.debug("create choice for scalar values");
ingo@1038:         Element scalar = creator.create("item");
ingo@1038:         Element label  = creator.create("label");
ingo@1038:         label.setTextContent(ressource.getRessource(
ingo@1038:             locales, RESSOURCE_SCALAR, RESSOURCE_SCALAR));
ingo@1038:         scalar.appendChild(label);
ingo@1038: 
ingo@1038:         Element value = creator.create("value");
ingo@1038:         value.setTextContent(SCALAR_VALUE);
ingo@1038:         scalar.appendChild(value);
ingo@1038: 
ingo@1038:         // add choice for vector values
ingo@1038:         logger.debug("create choice for vector values");
ingo@1038:         Element vector = creator.create("item");
ingo@1038:         label  = creator.create("label");
ingo@1038:         label.setTextContent(ressource.getRessource(
ingo@1038:             locales, RESSOURCE_VECTOR, RESSOURCE_VECTOR));
ingo@1038:         vector.appendChild(label);
ingo@1038: 
ingo@1038:         value = creator.create("value");
ingo@1038:         value.setTextContent(VECTOR_VALUE);
ingo@1038:         vector.appendChild(value);
ingo@1038: 
ingo@1038:         choiceNodes.appendChild(scalar);
ingo@1038:         choiceNodes.appendChild(vector);
ingo@1038: 
ingo@1038:         return choiceNodes;
ingo@1038:     }
ingo@1038: 
ingo@1038: 
ingo@1038:     @Override
ingo@1038:     protected String[] getDescriptionForInputData(
ingo@1038:         InputData data, CallContext context, String uuid)
ingo@1038:     {
ingo@1038:         RessourceFactory ressource = RessourceFactory.getInstance();
ingo@1038:         CallMeta callMeta          = context.getMeta();
ingo@1038:         PreferredLocale[] locales  = callMeta.getLanguages();
ingo@1038: 
ingo@1038:         String value = data.getValue();
ingo@1038: 
ingo@1038:         if (value != null && value.equals(SCALAR_VALUE)) {
ingo@1038:             return new String[] { ressource.getRessource(
ingo@1038:                 locales, RESSOURCE_SCALAR, RESSOURCE_SCALAR) };
ingo@1038:         }
ingo@1038:         else if (value != null && value.equals(VECTOR_VALUE)) {
ingo@1038:             return new String[] { ressource.getRessource(
ingo@1038:                 locales, RESSOURCE_VECTOR, RESSOURCE_VECTOR) };
ingo@1038:         }
ingo@1038: 
ingo@1038:         return null;
ingo@1038:     }
ingo@1038: }
ingo@1038: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :