Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/sq/SQPeriodSelect.java @ 8620:8737de2ca763
Send default values for SQ Period selection to the client.
author | Andre Heinecke <andre.heinecke@intevation.de> |
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date | Wed, 25 Mar 2015 19:20:13 +0100 |
parents | af13ceeba52a |
children | 1125e598df0e |
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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.states.sq; import java.util.Date; import java.util.List; import java.util.Collections; import org.apache.log4j.Logger; import org.w3c.dom.Element; import org.dive4elements.river.artifacts.states.PeriodsSelect; import org.dive4elements.river.artifacts.access.RangeAccess; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.model.SQOverview; import org.dive4elements.river.artifacts.model.SQOverviewFactory; import org.dive4elements.river.artifacts.model.SQOverview.KmFilter; import org.dive4elements.river.utils.KMIndex; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifactdatabase.data.StateData; public class SQPeriodSelect extends PeriodsSelect { private static Logger log = Logger.getLogger(SQPeriodSelect.class); public static final String UI_PROVIDER = "sq.period.select"; private static final long serialVersionUID = 1L; /** Get either the start date of the data or the end. */ protected long getDataMinMaxDate(Artifact artifact, boolean minDate) { D4EArtifact arti = (D4EArtifact) artifact; RangeAccess access = new RangeAccess(arti); double km = access.getLocations()[0]; /* Bit of an overkill here but it will be cached and accessed * in the next state anyway. */ SQOverview overview = SQOverviewFactory.getOverview(access.getRiverName()); KMIndex<List<Date>> entries = overview.filter(new KmFilter(km)); if (entries.size() == 0) { return 0; } List<Date> dates = entries.get(0).getValue(); if (dates.isEmpty()) { return 0; } Collections.sort(dates); return minDate ? dates.get(0).getTime() : dates.get(dates.size() - 1).getTime(); } @Override protected Element[] createItems( XMLUtils.ElementCreator cr, Artifact artifact, String name, CallContext context) { if (!name.equals("start") && !name.equals("end")) { return null; } Element def = createItem( cr, new String[] {"default", Long.toString( getDataMinMaxDate(artifact, name.equals("start")))}); return new Element[] { def }; } @Override public String getUIProvider() { return UI_PROVIDER; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :