ingo@100: /*
ingo@100:  * Copyright (c) 2010 by Intevation GmbH
ingo@100:  *
ingo@100:  * This program is free software under the LGPL (>=v2.1)
ingo@100:  * Read the file LGPL.txt coming with the software for details
ingo@100:  * or visit http://www.gnu.org/licenses/ if it does not exist.
ingo@100:  */
ingo@100: 
teichmann@475: package org.dive4elements.artifactdatabase.rest;
sascha@20: 
teichmann@475: import org.dive4elements.artifacts.common.utils.XMLUtils;
teichmann@475: import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
sascha@93: 
teichmann@475: import org.dive4elements.artifacts.ArtifactDatabase;
teichmann@475: import org.dive4elements.artifacts.ArtifactNamespaceContext;
sascha@20: 
tom@570: import org.apache.logging.log4j.Logger;
tom@570: import org.apache.logging.log4j.LogManager;
sascha@93: 
sascha@20: import org.restlet.data.MediaType;
sascha@20: 
sascha@20: import org.restlet.ext.xml.DomRepresentation;
sascha@20: 
sascha@22: import org.restlet.representation.Representation;
sascha@22: 
sascha@93: import org.restlet.resource.ResourceException;
sascha@20: 
sascha@20: import org.w3c.dom.Document;
sascha@20: import org.w3c.dom.Element;
sascha@20: 
sascha@21: /**
sascha@88:  * Resource to list the available factories.
sascha@77:  * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
sascha@21:  */
sascha@20: public class FactoriesResource
sascha@40: extends      BaseResource
sascha@20: {
tom@570:     private static Logger logger = LogManager.getLogger(FactoriesResource.class);
sascha@47: 
sascha@88:     /**
sascha@88:      * server URL where to reach the resource.
sascha@88:      */
sascha@20:     public static final String PATH = "/factories";
sascha@20: 
sascha@89:     @Override
sascha@40:     protected Representation innerGet()
sascha@40:     throws                   ResourceException
sascha@40:     {
sascha@20:         Document document = XMLUtils.newDocument();
sascha@20: 
sascha@20:         ElementCreator ec = new ElementCreator(
sascha@20:             document,
sascha@24:             ArtifactNamespaceContext.NAMESPACE_URI,
sascha@24:             ArtifactNamespaceContext.NAMESPACE_PREFIX);
sascha@20: 
sascha@20:         ArtifactDatabase db = (ArtifactDatabase)getContext()
sascha@20:             .getAttributes().get("database");
sascha@20: 
sascha@20:         Element root = ec.create("result");
sascha@20:         document.appendChild(root);
sascha@20: 
sascha@20:         Element type = ec.create("type");
sascha@20:         ec.addAttr(type, "name", "factory-list");
sascha@20:         root.appendChild(type);
sascha@20: 
sascha@20:         Element factories = ec.create("factories");
sascha@20:         root.appendChild(factories);
sascha@20: 
sascha@32:         String [][] factoryNames = db.artifactFactoryNamesAndDescriptions();
sascha@20: 
sascha@20:         for (int i = 0; i < factoryNames.length; ++i) {
sascha@32:             String [] nd = factoryNames[i];
sascha@20:             Element factoryElement = ec.create("factory");
sascha@32:             ec.addAttr(factoryElement, "name", nd[0]);
sascha@32:             ec.addAttr(factoryElement, "description", nd[1]);
sascha@20:             factories.appendChild(factoryElement);
sascha@20:         }
sascha@20: 
sascha@41:         document.normalizeDocument();
sascha@41: 
sascha@20:         return new DomRepresentation(
sascha@20:             MediaType.APPLICATION_XML, document);
sascha@20:     }
sascha@20: }
sascha@91: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :