Mercurial > dive4elements > framework
view artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultServiceFactory.java @ 357:1d11a0531242
Added artifact parameter to facets getDataProviderKeys.
artifacts/trunk@3380 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 09 Dec 2011 16:03:19 +0000 |
parents | a8d62eb93cd4 |
children |
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/* * Copyright (c) 2010 by Intevation GmbH * * This program is free software under the LGPL (>=v2.1) * Read the file LGPL.txt coming with the software for details * or visit http://www.gnu.org/licenses/ if it does not exist. */ package de.intevation.artifactdatabase; import de.intevation.artifacts.common.utils.Config; import de.intevation.artifacts.Service; import de.intevation.artifacts.GlobalContext; import de.intevation.artifacts.ServiceFactory; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Node; /** * Trivial implementation of the ServiceFactory interface. * Name and an description are configured by the given Node given to * #setup(Document, Node) via the 'name' and 'description' attributes. * The name of the class that provides the concrete serice is configured * by the 'service' attribute. * * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> */ public class DefaultServiceFactory implements ServiceFactory { private static Logger logger = Logger.getLogger(DefaultServiceFactory.class); /** * XPath to access the name of the service. */ public static final String XPATH_NAME = "@name"; /** * XPath to access the description of the service. */ public static final String XPATH_DESCRIPTION = "@description"; /** * XPath to access the class name of the service to be build by * this factory. */ public static final String XPATH_SERVICE = "@service"; /** * Default description if no description is given in configuration. */ public static final String DEFAULT_DESCRIPTION = "No description available"; /** * Loaded service class if no class name is given in the configuration. */ public static final String DEFAULT_SERVICE = "de.intevation.artifactdatabase.DefaultService"; /** * The name of the service factory. */ protected String name; /** * The description of the service factory. */ protected String description; /** * The loaded class used to build the concrete service. */ protected Class serviceClass; /** * Default constructor. */ public DefaultServiceFactory() { } @Override public String getName() { return name; } @Override public String getDescription() { return description; } @Override public Service createService(GlobalContext globalContext) { try { Service service = (Service)serviceClass.newInstance(); service.setup(this, globalContext); return service; } catch (InstantiationException ie) { logger.error(ie.getLocalizedMessage(), ie); } catch (IllegalAccessException iae) { logger.error(iae.getLocalizedMessage(), iae); } catch (ClassCastException cce) { logger.error(cce.getLocalizedMessage(), cce); } return null; } @Override public void setup(Document config, Node factoryNode) { description = Config.getStringXPath( factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION); name = Config.getStringXPath( factoryNode, XPATH_NAME, toString()); String service = Config.getStringXPath( factoryNode, XPATH_SERVICE, DEFAULT_SERVICE); try { serviceClass = Class.forName(service); } catch (ClassNotFoundException cnfe) { logger.error(cnfe.getLocalizedMessage(), cnfe); } if (serviceClass == null) { serviceClass = DefaultService.class; } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :