Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/exports/fixings/FixChartGenerator.java @ 4241:49cb65d5932d
Improved the historical discharge calculation.
The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used
to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is
improved to support those facets.
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 24 Oct 2012 14:34:35 +0200 |
parents | b81f328da582 |
children | dd8a63002fb8 |
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package de.intevation.flys.exports.fixings; import de.intevation.artifacts.ArtifactNamespaceContext; import de.intevation.artifacts.CallContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.flys.exports.XYChartGenerator; import java.io.OutputStream; import org.apache.log4j.Logger; import org.w3c.dom.Document; /** * Base class for FixChartGenerator. */ public abstract class FixChartGenerator extends XYChartGenerator { /** Private logger. */ private static Logger logger = Logger.getLogger(FixChartGenerator.class); public static final Double INVALID_KM = Double.valueOf(-1d); public static final String CURRENT_KM = "currentKm"; public static final String XPATH_CHART_CURRENTKM = "/art:action/art:attributes/art:currentKm/@art:km"; @Override public void init(Document request, OutputStream out, CallContext context) { super.init(request, out, context); Double currentKm = getCurrentKmFromRequest(request); if (logger.isDebugEnabled()) { logger.debug("currentKm = " + currentKm); } context.putContextValue(CURRENT_KM, currentKm); } public static final Double getCurrentKmFromRequest(Document request) { String km = XMLUtils.xpathString( request, XPATH_CHART_CURRENTKM, ArtifactNamespaceContext.INSTANCE); if (km == null) { return INVALID_KM; } try { return Double.valueOf(km); } catch (NumberFormatException nfe) { return INVALID_KM; } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :