teichmann@5863: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5863:  * Software engineering by Intevation GmbH
teichmann@5863:  *
teichmann@5863:  * This file is Free Software under the GNU AGPL (>=v3) 
teichmann@5863:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5863:  * documentation coming with Dive4Elements River for details. 
teichmann@5863:  */
teichmann@5863: 
teichmann@5831: package org.dive4elements.river.artifacts.services;
raimund@2737: 
raimund@2737: import java.util.List;
raimund@2737: 
raimund@2737: import org.apache.log4j.Logger;
raimund@2737: 
raimund@2737: import org.w3c.dom.Document;
raimund@2737: import org.w3c.dom.Element;
raimund@2737: import org.w3c.dom.Node;
raimund@2737: 
teichmann@5831: import org.dive4elements.artifacts.CallMeta;
teichmann@5831: import org.dive4elements.artifacts.GlobalContext;
raimund@2737: 
teichmann@5831: import org.dive4elements.artifacts.common.utils.XMLUtils;
raimund@2737: 
teichmann@5831: import org.dive4elements.river.themes.Theme;
teichmann@5831: import org.dive4elements.river.themes.ThemeGroup;
teichmann@5831: 
teichmann@5831: import org.dive4elements.river.themes.ThemeFactory;
teichmann@5866: import org.dive4elements.river.artifacts.context.RiverContext;
raimund@2737: 
raimund@2737: /**
raimund@2737:  * This service provides a list of themes filtered by the theme name.
raimund@2737:  *
raimund@2737:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
raimund@2737:  */
teichmann@5868: public class ThemeListingService extends D4EService {
raimund@2737: 
raimund@2737:     /** The logger used in this service.*/
raimund@2737:     private static Logger logger = Logger.getLogger(ThemeListingService.class);
raimund@2737: 
raimund@2737:     private static final String XPATH_THEME_NAME = "/theme/@name";
raimund@2737: 
raimund@2737:     protected Document doProcess(
raimund@2737:         Document      data,
raimund@2737:         GlobalContext context,
raimund@2737:         CallMeta      callMeta
raimund@2737:     ) {
raimund@2737:         logger.debug("ThemeListingService.process");
raimund@2737:         String name = XMLUtils.xpathString(data, XPATH_THEME_NAME, null);
raimund@2737: 
raimund@2737:         if (name == null) {
raimund@2737:             logger.warn("No theme name provided.");
raimund@2737:         }
raimund@2737:         Document result = XMLUtils.newDocument();
raimund@2737: 
raimund@2737:         XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
raimund@2737:             result,
raimund@2737:             null,
raimund@2737:             null);
raimund@2737: 
raimund@2737:         List<ThemeGroup> tgs =
teichmann@5866:             ThemeFactory.getThemeGroups((RiverContext) context);
raimund@2737: 
raimund@2737:         Element te = ec.create("themes");
raimund@2737: 
raimund@2737:         for (ThemeGroup tg: tgs) {
raimund@2737:             Element elem = ec.create("themegroup");
raimund@2737:             if (tg.getName().equals("virtual")) {
raimund@2737:                 continue;
raimund@2737:             }
raimund@2737:             ec.addAttr(elem, "name", tg.getName());
raimund@2737:             Theme theme = tg.getThemeByName(name);
raimund@2737:             Document d = theme.toXML();
raimund@2737:             Node imported = result.importNode(d.getDocumentElement(), true);
raimund@2737:             elem.appendChild(imported);
raimund@2737:             te.appendChild(elem);
raimund@2737:         }
raimund@2737: 
raimund@2737:         result.appendChild(te);
raimund@2737:         return result;
raimund@2737:     }
raimund@2737: }
raimund@2737: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :