Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/exports/injector/ComputedDischargeInjector.java @ 8337:f5461750e5c7
Avoid NPE if river is not accessible.
author | "Tom Gottfried <tom@intevation.de>" |
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date | Fri, 26 Sep 2014 17:22:51 +0200 |
parents | 10917ec29625 |
children |
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package org.dive4elements.river.exports.injector; import org.apache.log4j.Logger; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifacts.ContextInjector; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.access.RangeAccess; import org.w3c.dom.Document; import org.w3c.dom.Element; import static org.dive4elements.river.exports.injector.InjectorConstants.CURRENT_KM; public class ComputedDischargeInjector implements ContextInjector { private static Logger log = Logger.getLogger(ComputedDischargeInjector.class); @Override public void setup(Element cfg) { } @Override public void injectContext( CallContext ctx, Artifact artifact, Document doc ) { RangeAccess access = new RangeAccess((D4EArtifact)artifact); if (access.hasFrom()) { ctx.putContextValue(CURRENT_KM, access.getFrom()); } else if (access.getLocations() != null && access.getLocations().length > 0) { ctx.putContextValue(CURRENT_KM, access.getLocations()[0]); } } }