Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/SedimentLoadInfoService.java @ 8124:2c21fd1ade39

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(issue 1448) Use new data model for sedimentloadinfo This probably returns a bit too much of data. So we might need to reduce this later on.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 25 Aug 2014 12:18:35 +0200
parents 963ede7b32bb
children e4606eae8ea5
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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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 import java.util.Collection;
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13
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14 import org.apache.log4j.Logger;
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15 import org.w3c.dom.Document;
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16 import org.w3c.dom.Element;
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17
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18 import org.dive4elements.artifacts.ArtifactNamespaceContext;
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19 import org.dive4elements.artifacts.CallMeta;
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20 import org.dive4elements.artifacts.GlobalContext;
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21 import org.dive4elements.artifacts.common.utils.XMLUtils;
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22 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadDataFactory;
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23 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadData;
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24 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadData.Load;
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25
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26 /** Service delivering info about sediment loads. */
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27 public class SedimentLoadInfoService
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28 extends D4EService
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29 {
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30 /** The logger used in this service. */
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31 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class);
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32
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33 public static final String RIVER_XPATH = "/art:river/text()";
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34 public static final String TYPE_XPATH = "/art:river/art:type/text()";
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35 public static final String FROM_XPATH = "/art:river/art:location/art:from/text()";
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36 public static final String TO_XPATH = "/art:river/art:location/art:to/text()";
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37
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38 /**
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39 * Create document with sedimentload infos,
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40 * constrained by contents in data.
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41 */
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42 @Override
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43 protected Document doProcess(
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44 Document data,
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45 GlobalContext globalContext,
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46 CallMeta callMeta) {
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47 String river = XMLUtils.xpathString(
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48 data,
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49 RIVER_XPATH,
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50 ArtifactNamespaceContext.INSTANCE);
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51 String type = XMLUtils.xpathString(
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52 data,
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53 TYPE_XPATH,
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54 ArtifactNamespaceContext.INSTANCE);
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55 String from = XMLUtils.xpathString(
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56 data,
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57 FROM_XPATH,
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58 ArtifactNamespaceContext.INSTANCE);
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59 String to = XMLUtils.xpathString(
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60 data,
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61 TO_XPATH,
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62 ArtifactNamespaceContext.INSTANCE);
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63 double fromD, toD;
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64 try {
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65 fromD = Double.parseDouble(from);
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66 toD = Double.parseDouble(to);
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67 }
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68 catch (NumberFormatException nfe) {
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69 logger.warn("Invalid locations. Cannot return sediment loads.");
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70 return XMLUtils.newDocument();
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71 }
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72
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73 /* This call initializes the sedimentloaddata for the river. Might be
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74 * expensive but has to be done anyway for the calculation later on. */
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75 SedimentLoadData allLoadData = SedimentLoadDataFactory.INSTANCE.getSedimentLoadData(
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76 river);
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77
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78 Collection <Load> loads = allLoadData.findLoads(fromD, toD);
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79
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80 return buildDocument(loads);
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81 }
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82
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83 protected Document buildDocument(Collection<Load> loads) {
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84 Document result = XMLUtils.newDocument();
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85 Element all = result.createElement("sedimentloads");
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86 for (Load load : loads) {
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87 Element ele = result.createElement("sedimentload");
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88 ele.setAttribute("description", load.getDescription());
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89 if (load.isEpoch()) {
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90 Calendar calendarS = Calendar.getInstance();
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91 calendarS.setTime(load.getStartTime());
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92 Calendar calendarE = Calendar.getInstance();
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93 calendarE.setTime(load.getStopTime());
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94 ele.setAttribute(
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95 "date",
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96 calendarS.get(Calendar.YEAR) +
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97 " - " +
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98 calendarE.get(Calendar.YEAR));
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99 }
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100 else {
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101 Calendar calendar = Calendar.getInstance();
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102 calendar.setTime(load.getStartTime());
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103 ele.setAttribute(
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104 "date",
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105 String.valueOf(calendar.get(Calendar.YEAR)));
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106 }
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107 all.appendChild(ele);
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108 }
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109 result.appendChild(all);
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110 return result;
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111 }
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112 }
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113 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org