teichmann@5863: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5863:  * Software engineering by Intevation GmbH
teichmann@5863:  *
teichmann@5994:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5863:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5994:  * documentation coming with Dive4Elements River for details.
teichmann@5863:  */
teichmann@5863: 
teichmann@5831: package org.dive4elements.river.artifacts.states;
felix@1173: 
felix@1173: import java.util.List;
felix@1173: 
felix@1173: import org.apache.log4j.Logger;
gernotbelger@9580: import org.dive4elements.artifactdatabase.ProtocolUtils;
gernotbelger@9580: import org.dive4elements.artifactdatabase.state.Facet;
teichmann@5831: import org.dive4elements.artifacts.Artifact;
teichmann@5831: import org.dive4elements.artifacts.CallContext;
teichmann@5831: import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
teichmann@5867: import org.dive4elements.river.artifacts.D4EArtifact;
teichmann@5831: import org.dive4elements.river.artifacts.model.FacetTypes;
teichmann@5831: import org.dive4elements.river.artifacts.resources.Resources;
teichmann@8186: import org.dive4elements.river.backend.utils.StringUtil;
gernotbelger@9580: import org.w3c.dom.Element;
felix@1663: 
felix@1737: /**
felix@1737:  * State in which the user selects 1 to n pairs of Waterlevels and alikes.
felix@1737:  */
gernotbelger@9580: public class WaterlevelPairSelectState extends DefaultState implements FacetTypes {
teichmann@8202:     /** The log that is used in this state. */
gernotbelger@9580:     private static Logger log = Logger.getLogger(WaterlevelPairSelectState.class);
felix@1663: 
felix@1737:     /** Trivial constructor. */
felix@1173:     public WaterlevelPairSelectState() {
felix@1173:     }
felix@1173: 
felix@1173:     /** Specify to display a datacage_twin_panel. */
felix@1173:     @Override
felix@1173:     protected String getUIProvider() {
gernotbelger@8852:         return "waterlevel_twin_panel";
felix@1173:     }
felix@1173: 
felix@1737:     /**
felix@1737:      * Overridden to do nothing.
felix@1737:      */
felix@1173:     @Override
gernotbelger@9580:     public Object computeAdvance(final D4EArtifact artifact, final String hash, final CallContext context, final List<Facet> facets, final Object old) {
gernotbelger@9580:         // Get data and do stuff, do not calculate
felix@1737:         return "";
felix@1693:     }
felix@1693: 
felix@1693:     /**
felix@1693:      * Create elements for document (prepopulated with data, if any).
gernotbelger@9580:      *
gernotbelger@9580:      * @param artifact
gernotbelger@9580:      *            D4EArtifact to get data from.
gernotbelger@9580:      * @param name
gernotbelger@9580:      *            DataName, expceted to be "diffids".
felix@1693:      */
felix@1693:     @Override
gernotbelger@9580:     protected Element[] createItems(final ElementCreator cr, final Artifact artifact, final String name, final CallContext context) {
teichmann@8202:         log.debug("createItems: " + name);
felix@1693:         if (name.equals("diffids")) {
gernotbelger@9580:             final Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
gernotbelger@9580:             final Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
gernotbelger@9580:             final Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
gernotbelger@9580:             final D4EArtifact flys = (D4EArtifact) artifact;
gernotbelger@9580:             final String s = flys.getDataAsString("diffids");
felix@1693:             value.setTextContent(s);
felix@1693:             item.appendChild(label);
felix@1693:             item.appendChild(value);
felix@1693:             return new Element[] { item };
felix@1693:         }
felix@1693:         return new Element[] {};
felix@1173:     }
felix@1663: 
felix@1663:     /**
felix@1663:      * Creats the data element used for the static part of DESCRIBE document.
felix@1663:      */
felix@1663:     @Override
gernotbelger@9580:     protected Element createStaticData(final D4EArtifact flys, final ElementCreator creator, final CallContext cc, final String name, final String value,
gernotbelger@9580:             final String type) {
gernotbelger@9580:         final Element dataElement = creator.create("data");
felix@1663:         creator.addAttr(dataElement, "name", name, true);
felix@1663:         creator.addAttr(dataElement, "type", type, true);
felix@1663: 
gernotbelger@9580:         final Element itemElement = creator.create("item");
felix@1663:         creator.addAttr(itemElement, "value", value, true);
felix@1663: 
gernotbelger@9580:         final String[] labels = getLabels(cc, value, false);
gernotbelger@9580:         final Object[] obj = new Object[] { labels[0] };
felix@1663: 
felix@1663:         // TODO own i18n
gernotbelger@9580:         final String attrValue = Resources.getMsg(cc.getMeta(), "wsp.selected.string", "wsp.selected.string", obj);
gernotbelger@9580:         // I18N_STATIC_KEY, I18N_STATIC_KEY, obj);
felix@1663: 
felix@1663:         creator.addAttr(itemElement, "label", attrValue, true);
felix@1663:         dataElement.appendChild(itemElement);
felix@1663: 
felix@1663:         return dataElement;
felix@1663:     }
felix@1663: 
felix@1663:     /**
felix@1663:      * Get name to display for selected watelerlevels (for example "Q=123")
sascha@3076:      * from the CalculationResult.
felix@1663:      */
gernotbelger@9580:     public static String[] getLabels(final CallContext cc, final String value, final boolean minuendSubtrahendUiReversed) {
gernotbelger@9580:         final String[] recommendations = value.split("#");
felix@1663:         String displayString = "";
felix@1663: 
felix@1663:         // Walk over all selected recommendations and create label
felix@1663:         // like "W (Q=1) - W (Q=2)".
gernotbelger@9580:         final int minuendIndex = minuendSubtrahendUiReversed ? 1 : 0;
gernotbelger@9580:         final int subtrahendIndex = minuendSubtrahendUiReversed ? 0 : 1;
gernotbelger@9580: 
gernotbelger@9580:         for (int i = 0; i < recommendations.length; i += 2) {
gernotbelger@9580:             final String[] minuendParts = StringUtil.unbracket(recommendations[i + minuendIndex]).split(";");
gernotbelger@9580:             if (minuendParts.length >= 4) {
felix@1737:                 displayString += "(" + minuendParts[3];
gernotbelger@9580:             } else {
felix@1737:                 displayString += "([error]";
felix@1737:             }
felix@1737: 
felix@1737:             displayString += " - ";
felix@1737: 
gernotbelger@9580:             final String[] subtrahendParts = StringUtil.unbracket(recommendations[i + subtrahendIndex]).split(";");
gernotbelger@9580:             if (subtrahendParts.length >= 4) {
felix@1737:                 displayString += subtrahendParts[3] + ") ";
gernotbelger@9580:             } else {
felix@1737:                 displayString += "[error])";
felix@1663:             }
felix@1663:         }
felix@1663: 
felix@1663:         return new String[] { displayString };
felix@1663:     }
gernotbelger@9580: 
felix@1173: }
felix@1173: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :