Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/state/StateFactory.java @ 848:47280aff0eb7
Added an y-axis label in histograms (issue243).
gnv-artifacts/trunk@964 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
---|---|
date | Wed, 21 Apr 2010 09:43:46 +0000 |
parents | 05bf8534a35a |
children | f953c9a559d8 |
line wrap: on
line source
package de.intevation.gnv.state; import de.intevation.gnv.artifacts.GNVArtifactBase; import org.apache.log4j.Logger; import org.w3c.dom.Node; /** * This factory should be used to create new state objects with help of a * configuration segment. * * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a> * */ public class StateFactory { /** * the logger, used to log exceptions and additonaly information */ private static Logger log = Logger.getLogger(GNVArtifactBase.class); private static StateFactory instance = null; /** * Constructor */ public StateFactory() { super(); } /** * Return the instance of this class. */ public static StateFactory getInstance() { if (instance == null) { instance = new StateFactory(); } return instance; } /** * This method creates a new state with help of the information in <i> * configuration</i> and calls its setup method after creation. * * @return the new state. */ public State createState(Node configuration) { log.debug("StateFactory.createState"); State state = null; try { String classname = ((org.w3c.dom.Element)configuration).getAttribute("state"); state = (State) (Class.forName(classname).newInstance()); state.setup(configuration); } catch (InstantiationException e) { log.error(e, e); } catch (IllegalAccessException e) { log.error(e, e); } catch (ClassNotFoundException e) { log.error(e, e); } return state; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :