Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/SedimentLoadInfoService.java @ 4740:fb135e1dfa35

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Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given the result of the XPATH expression is interpreted as this type. Valid values are 'number', 'bool', 'node' and 'nodeset'. All other defaults to 'string' which also is the default if nor type is given.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 02 Jan 2013 15:31:53 +0100
parents b195fede1c3b
children
rev   line source
4297
6d44914b2dd4 Added serverside service for sediment load info.
Raimund Renkert <rrenkert@intevation.de>
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1 package de.intevation.flys.artifacts.services;
6d44914b2dd4 Added serverside service for sediment load info.
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2
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3 import java.util.Calendar;
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4
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5 import org.apache.log4j.Logger;
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6 import org.w3c.dom.Document;
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7 import org.w3c.dom.Element;
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8
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9 import de.intevation.artifacts.ArtifactNamespaceContext;
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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.utils.XMLUtils;
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13 import de.intevation.flys.artifacts.model.minfo.SedimentLoad;
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14 import de.intevation.flys.artifacts.model.minfo.SedimentLoadFactory;
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15
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16
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17 public class SedimentLoadInfoService
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18 extends FLYSService
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19 {
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20 /** The logger used in this service. */
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21 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class);
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22
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23 public static final String RIVER_XPATH = "/art:river/text()";
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24 public static final String TYPE_XPATH = "/art:river/art:type/text()";
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25 public static final String FROM_XPATH = "/art:river/art:location/art:from/text()";
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26 public static final String TO_XPATH = "/art:river/art:location/art:to/text()";
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27
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28 @Override
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29 protected Document doProcess(
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30 Document data,
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31 GlobalContext globalContext,
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32 CallMeta callMeta) {
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33 String river = XMLUtils.xpathString(
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34 data,
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35 RIVER_XPATH,
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36 ArtifactNamespaceContext.INSTANCE);
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37 String type = XMLUtils.xpathString(
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38 data,
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39 TYPE_XPATH,
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40 ArtifactNamespaceContext.INSTANCE);
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41 String from = XMLUtils.xpathString(
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42 data,
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43 FROM_XPATH,
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44 ArtifactNamespaceContext.INSTANCE);
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45 String to = XMLUtils.xpathString(
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46 data,
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47 TO_XPATH,
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48 ArtifactNamespaceContext.INSTANCE);
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49 double f, t;
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50 try {
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51 f = Double.parseDouble(from);
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52 t = Double.parseDouble(to);
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53 }
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54 catch (NumberFormatException nfe) {
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55 logger.warn("Invalid locations. Cannot return sediment loads.");
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56 return XMLUtils.newDocument();
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57 }
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58
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59 SedimentLoad[] loads = SedimentLoadFactory.getLoads(river, type, f, t);
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60 return buildDocument(loads);
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61 }
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62
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63 protected Document buildDocument(SedimentLoad[] loads) {
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64 Document result = XMLUtils.newDocument();
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65 Element all = result.createElement("sedimentloads");
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66 for (SedimentLoad sl : loads) {
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67 Element load = result.createElement("sedimentload");
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68 load.setAttribute("description", sl.getDescription());
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69 if (sl.isEpoch()) {
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70 Calendar calendarS = Calendar.getInstance();
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71 calendarS.setTime(sl.getStart());
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72 Calendar calendarE = Calendar.getInstance();
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73 calendarE.setTime(sl.getEnd());
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74 load.setAttribute(
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75 "date",
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76 calendarS.get(Calendar.YEAR) +
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77 " - " +
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78 calendarE.get(Calendar.YEAR));
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79 }
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80 else {
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81 Calendar calendar = Calendar.getInstance();
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82 calendar.setTime(sl.getStart());
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83 load.setAttribute(
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84 "date",
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85 String.valueOf(calendar.get(Calendar.YEAR)));
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86 }
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87 all.appendChild(load);
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88 }
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89 result.appendChild(all);
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90 return result;
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91 }
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92 }
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