Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/FixingsFacet.java @ 6351:2c7a16d59f67
Use Double.NaN for missing values in middle bedheight calculation and write empty strings in csv export.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Mon, 17 Jun 2013 15:37:26 +0200 |
parents | af13ceeba52a |
children | a5bd0a5b8efd |
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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.model.fixings; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.model.DataFacet; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; /** * Facet to access the current Km from the context safely * * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a> */ public class FixingsFacet extends DataFacet { public static final Double INVALID_KM = Double.valueOf(-1d); public static final String CURRENT_KM = "currentKm"; public FixingsFacet() { } public FixingsFacet(String name, String description) { super(0, name, description, ComputeType.ADVANCE, null, null); } public FixingsFacet( int index, String name, String description, ComputeType type, String hash, String stateId ) { super(index, name, description, type, hash, stateId); } /** * Returns the current km from the context. * If the context is null or doesn't contain a currentKm then a double value of -1 will * be returned. * @param context The CallContext instance * @return the current km as double */ protected double getCurrentKm(CallContext context) { if (context == null) { return INVALID_KM; } Double dkm = (Double)context.getContextValue(CURRENT_KM); if (dkm == null) { return INVALID_KM; } return dkm.doubleValue(); } }