Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/SedimentLoadInfoService.java @ 4297:6d44914b2dd4

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Added serverside service for sediment load info. The service presents an overview for sediment loads.
author Raimund Renkert <rrenkert@intevation.de>
date Mon, 29 Oct 2012 13:09:16 +0100
parents
children b195fede1c3b
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
6d44914b2dd4 Added serverside service for sediment load info.
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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;
6d44914b2dd4 Added serverside service for sediment load info.
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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;
6d44914b2dd4 Added serverside service for sediment load info.
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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;
6d44914b2dd4 Added serverside service for sediment load info.
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15
6d44914b2dd4 Added serverside service for sediment load info.
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16
6d44914b2dd4 Added serverside service for sediment load info.
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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. */
6d44914b2dd4 Added serverside service for sediment load info.
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21 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class);
6d44914b2dd4 Added serverside service for sediment load info.
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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(
6d44914b2dd4 Added serverside service for sediment load info.
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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(
6d44914b2dd4 Added serverside service for sediment load info.
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34 data,
6d44914b2dd4 Added serverside service for sediment load info.
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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,
6d44914b2dd4 Added serverside service for sediment load info.
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44 ArtifactNamespaceContext.INSTANCE);
6d44914b2dd4 Added serverside service for sediment load info.
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45 String to = XMLUtils.xpathString(
6d44914b2dd4 Added serverside service for sediment load info.
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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(
6d44914b2dd4 Added serverside service for sediment load info.
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75 "date",
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76 calendarS.get(Calendar.YEAR) +
6d44914b2dd4 Added serverside service for sediment load info.
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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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