Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/RiverInfoService.java @ 5462:f2371f3aaf03

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Show top level folder icons only if node has no factory If you have an empty folder the folder icon is still shown. This makes it possible to add functional "Top Level" entries in the Datacage
author Andre Heinecke <aheinecke@intevation.de>
date Tue, 26 Mar 2013 18:29:13 +0100
parents 5da024c2af62
children
rev   line source
4247
5da024c2af62 Refactor GaugeOverviewInfoService and MeasurementStationInfoService
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1 package de.intevation.flys.artifacts.services;
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2
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3 import java.math.BigDecimal;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.w3c.dom.Document;
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8 import org.w3c.dom.Element;
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9
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10 import de.intevation.artifacts.CallMeta;
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11 import de.intevation.artifacts.GlobalContext;
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12 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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13 import de.intevation.artifacts.common.utils.XMLUtils;
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14
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15 import de.intevation.flys.artifacts.model.RiverFactory;
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16 import de.intevation.flys.model.River;
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17
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18 /**
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19 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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20 */
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21 public class RiverInfoService extends FLYSService {
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22
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23 private static final Logger logger = Logger.getLogger(
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24 RiverInfoService.class);
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25
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26 protected static final String RIVER_XPATH = "/art:river/text()";
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27
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28 protected XMLUtils.ElementCreator ec;
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29 protected River river;
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30 protected Element riverele;
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31
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32 protected Document doProcess(
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33 Document data,
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34 GlobalContext globalContext,
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35 CallMeta callMeta
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36 ) {
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37 String rivername = XMLUtils.xpathString(
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38 data, RIVER_XPATH, ArtifactNamespaceContext.INSTANCE);
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39
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40 river = RiverFactory.getRiver(rivername);
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41
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42 Document result = XMLUtils.newDocument();
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43
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44 if (river == null) {
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45 logger.warn("No river with name " + rivername + " found.");
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46 return null;
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47 }
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48
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49 ec = new XMLUtils.ElementCreator(
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50 result,
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51 ArtifactNamespaceContext.NAMESPACE_URI,
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52 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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53
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54 riverele = ec.create("river-info");
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55
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56 double[] minmax = river.determineMinMaxDistance();
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57 double[] minmaxq = river.determineMinMaxQ();
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58
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59 Element r = ec.create("river");
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60 ec.addAttr(r, "name", river.getName(), true);
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61 ec.addAttr(r, "start", Double.toString(minmax[0]), true);
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62 ec.addAttr(r, "end", Double.toString(minmax[1]), true);
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63 ec.addAttr(r, "wstunit", river.getWstUnit().getName(), true);
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64 ec.addAttr(r, "kmup", Boolean.toString(river.getKmUp()), true);
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65 ec.addAttr(r, "minq", Double.toString(minmaxq[0]), true);
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66 ec.addAttr(r, "maxq", Double.toString(minmaxq[1]), true);
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67 ec.addAttr(r, "official", Long.toString(river.getOfficialNumber()),
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68 true);
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69
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70 riverele.appendChild(r);
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71 result.appendChild(riverele);
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72
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73 return result;
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74 }
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75
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76 /**
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77 * Returns a Double as String from a BigDecimal value.
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78 *
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79 * If value is null an empty String is returned.
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80 */
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81 protected static String getStringValue(BigDecimal value) {
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82 return value != null
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83 ? Double.toString(value.doubleValue()) : "";
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84 }
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85 }
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