Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/SedimentLoadInfoService.java @ 6726:b68798973da2

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Cosmetics, docs.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 31 Jul 2013 11:32:33 +0200
parents af13ceeba52a
children 963ede7b32bb
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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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 /** Service delivering info about sediment loads. */
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26 public class SedimentLoadInfoService
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27 extends D4EService
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28 {
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29 /** The logger used in this service. */
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30 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class);
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31
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32 public static final String RIVER_XPATH = "/art:river/text()";
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33 public static final String TYPE_XPATH = "/art:river/art:type/text()";
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34 public static final String FROM_XPATH = "/art:river/art:location/art:from/text()";
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35 public static final String TO_XPATH = "/art:river/art:location/art:to/text()";
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36
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37 /**
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38 * Create document with sedimentload infos,
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39 * constrained by contents in data.
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40 */
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41 @Override
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42 protected Document doProcess(
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43 Document data,
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44 GlobalContext globalContext,
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45 CallMeta callMeta) {
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46 String river = XMLUtils.xpathString(
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47 data,
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48 RIVER_XPATH,
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49 ArtifactNamespaceContext.INSTANCE);
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50 String type = XMLUtils.xpathString(
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51 data,
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52 TYPE_XPATH,
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53 ArtifactNamespaceContext.INSTANCE);
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54 String from = XMLUtils.xpathString(
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55 data,
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56 FROM_XPATH,
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57 ArtifactNamespaceContext.INSTANCE);
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58 String to = XMLUtils.xpathString(
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59 data,
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60 TO_XPATH,
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61 ArtifactNamespaceContext.INSTANCE);
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62 double fromD, toD;
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63 try {
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64 fromD = Double.parseDouble(from);
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65 toD = Double.parseDouble(to);
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66 }
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67 catch (NumberFormatException nfe) {
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68 logger.warn("Invalid locations. Cannot return sediment loads.");
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69 return XMLUtils.newDocument();
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70 }
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71
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72 SedimentLoad[] loads =
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73 SedimentLoadFactory.getLoads(river, type, fromD, toD);
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74 return buildDocument(loads);
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75 }
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76
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77 protected Document buildDocument(SedimentLoad[] loads) {
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78 Document result = XMLUtils.newDocument();
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79 Element all = result.createElement("sedimentloads");
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80 for (SedimentLoad sl : loads) {
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81 Element load = result.createElement("sedimentload");
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82 load.setAttribute("description", sl.getDescription());
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83 if (sl.isEpoch()) {
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84 Calendar calendarS = Calendar.getInstance();
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85 calendarS.setTime(sl.getStart());
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86 Calendar calendarE = Calendar.getInstance();
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87 calendarE.setTime(sl.getEnd());
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88 load.setAttribute(
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89 "date",
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90 calendarS.get(Calendar.YEAR) +
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91 " - " +
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92 calendarE.get(Calendar.YEAR));
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93 }
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94 else {
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95 Calendar calendar = Calendar.getInstance();
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96 calendar.setTime(sl.getStart());
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97 load.setAttribute(
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98 "date",
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99 String.valueOf(calendar.get(Calendar.YEAR)));
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100 }
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101 all.appendChild(load);
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102 }
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103 result.appendChild(all);
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104 return result;
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105 }
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106 }
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107 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org