Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/transitions/TransitionFactory.java @ 7203:99c5e4148859
Cleaned imports.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 30 Sep 2013 17:30:06 +0200 |
parents | af13ceeba52a |
children | e4606eae8ea5 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.transitions; import javax.xml.xpath.XPathConstants; import org.apache.log4j.Logger; import org.w3c.dom.Node; import org.dive4elements.artifactdatabase.transition.Transition; import org.dive4elements.artifacts.common.utils.XMLUtils; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class TransitionFactory { /** The logger used in this class */ private static Logger logger = Logger.getLogger(TransitionFactory.class); /** The XPath to the classname of the transition */ public static final String XPATH_TRANSITION = "@transition"; /** The XPath to the current state ID */ public static final String XPATH_CURRENT_STATE = "from/@state"; /** The XPath to the target state ID */ public static final String XPATH_TARGET_STATE = "to/@state"; /** * Creates a new Transition based on the configured class provided by * <code>transitionConf</code>. * * @param transitionConf The configuration of the transition. * * @return a Transition. */ public static Transition createTransition(Node transitionConf) { String clazz = (String) XMLUtils.xpath( transitionConf, XPATH_TRANSITION, XPathConstants.STRING); Transition transition = null; try { transition = (Transition) Class.forName(clazz).newInstance(); String from = (String) XMLUtils.xpath( transitionConf, XPATH_CURRENT_STATE, XPathConstants.STRING); String to = (String) XMLUtils.xpath( transitionConf, XPATH_TARGET_STATE, XPathConstants.STRING); transition.init(transitionConf); transition.setFrom(from); transition.setTo(to); } catch (InstantiationException ie) { logger.error(ie, ie); } catch (IllegalAccessException iae) { logger.error(iae, iae); } catch (ClassNotFoundException cnfe) { logger.error(cnfe, cnfe); } return transition; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :