Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/DefaultVegetationZoneXPathFunction.java @ 9482:e5cb5efbc43e

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standard veg'zone data cage fix
author gernotbelger
date Wed, 12 Sep 2018 12:50:28 +0200
parents e2da9c8a7c57
children 853f2dafc16e
rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.artifacts.datacage.templating;
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11
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12 import java.util.List;
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13
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14 import javax.xml.xpath.XPathFunction;
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15 import javax.xml.xpath.XPathFunctionException;
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16
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17 import org.dive4elements.artifacts.CallContext;
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18 import org.dive4elements.river.artifacts.model.RiverFactory;
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19 import org.dive4elements.river.artifacts.uinfo.vegetationzones.VegetationZoneServerClientXChange;
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20 import org.dive4elements.river.model.River;
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21
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22 /**
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23 * Very specialized function that fetches the default vegetation zones for the river specified by an artifact
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24 *
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25 * @author Gernot Belger
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26 */
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27 public class DefaultVegetationZoneXPathFunction implements XPathFunction {
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28
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29 public static final String ID = "defaultvegetationzone";
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30
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31 public static final int ARITY = 1;
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32
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33 private final CallContext context;
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34
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35 public DefaultVegetationZoneXPathFunction(final CallContext context) {
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36 this.context = context;
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37 }
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38
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39 @Override
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40 public Object evaluate(final List args) throws XPathFunctionException {
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41
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42 final String rivername = (String) args.get(0);
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43 if (rivername == null)
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44 return null;
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45
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46 final River river = RiverFactory.getRiver(rivername);
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47 if (river == null)
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48 return null;
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49
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50 return VegetationZoneServerClientXChange.parseListToDataString(VegetationZoneServerClientXChange.getStandardList(river, this.context));
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51 }
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52 }
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