Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/SedimentLoadInfoService.java @ 6356:4c791a458305
Artifacts: Scan the official lines associated with a main value if it applies for the current river.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Mon, 17 Jun 2013 21:51:04 +0200 |
parents | af13ceeba52a |
children | b68798973da2 |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.artifacts.services; |
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10 |
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11 import java.util.Calendar; |
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12 |
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13 import org.apache.log4j.Logger; |
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14 import org.w3c.dom.Document; |
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15 import org.w3c.dom.Element; |
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16 |
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17 import org.dive4elements.artifacts.ArtifactNamespaceContext; |
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18 import org.dive4elements.artifacts.CallMeta; |
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19 import org.dive4elements.artifacts.GlobalContext; |
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20 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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21 import org.dive4elements.river.artifacts.model.minfo.SedimentLoad; |
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22 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadFactory; |
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23 |
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24 |
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25 public class SedimentLoadInfoService |
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26 extends D4EService |
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27 { |
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28 /** The logger used in this service. */ |
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29 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class); |
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30 |
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31 public static final String RIVER_XPATH = "/art:river/text()"; |
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32 public static final String TYPE_XPATH = "/art:river/art:type/text()"; |
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33 public static final String FROM_XPATH = "/art:river/art:location/art:from/text()"; |
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34 public static final String TO_XPATH = "/art:river/art:location/art:to/text()"; |
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35 |
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36 @Override |
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37 protected Document doProcess( |
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38 Document data, |
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39 GlobalContext globalContext, |
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40 CallMeta callMeta) { |
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41 String river = XMLUtils.xpathString( |
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42 data, |
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43 RIVER_XPATH, |
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44 ArtifactNamespaceContext.INSTANCE); |
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45 String type = XMLUtils.xpathString( |
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46 data, |
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47 TYPE_XPATH, |
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48 ArtifactNamespaceContext.INSTANCE); |
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49 String from = XMLUtils.xpathString( |
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50 data, |
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51 FROM_XPATH, |
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52 ArtifactNamespaceContext.INSTANCE); |
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53 String to = XMLUtils.xpathString( |
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54 data, |
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55 TO_XPATH, |
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56 ArtifactNamespaceContext.INSTANCE); |
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57 double f, t; |
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58 try { |
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59 f = Double.parseDouble(from); |
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60 t = Double.parseDouble(to); |
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61 } |
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62 catch (NumberFormatException nfe) { |
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63 logger.warn("Invalid locations. Cannot return sediment loads."); |
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64 return XMLUtils.newDocument(); |
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65 } |
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66 |
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67 SedimentLoad[] loads = SedimentLoadFactory.getLoads(river, type, f, t); |
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68 return buildDocument(loads); |
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69 } |
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70 |
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71 protected Document buildDocument(SedimentLoad[] loads) { |
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72 Document result = XMLUtils.newDocument(); |
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73 Element all = result.createElement("sedimentloads"); |
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74 for (SedimentLoad sl : loads) { |
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75 Element load = result.createElement("sedimentload"); |
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76 load.setAttribute("description", sl.getDescription()); |
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77 if (sl.isEpoch()) { |
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78 Calendar calendarS = Calendar.getInstance(); |
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79 calendarS.setTime(sl.getStart()); |
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80 Calendar calendarE = Calendar.getInstance(); |
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81 calendarE.setTime(sl.getEnd()); |
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82 load.setAttribute( |
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83 "date", |
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84 calendarS.get(Calendar.YEAR) + |
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85 " - " + |
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86 calendarE.get(Calendar.YEAR)); |
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87 } |
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88 else { |
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89 Calendar calendar = Calendar.getInstance(); |
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90 calendar.setTime(sl.getStart()); |
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91 load.setAttribute( |
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92 "date", |
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93 String.valueOf(calendar.get(Calendar.YEAR))); |
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94 } |
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95 all.appendChild(load); |
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96 } |
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97 result.appendChild(all); |
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98 return result; |
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99 } |
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100 } |