Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/MapInfoServiceImpl.java @ 4702:13abfb1bcb75
Fix typo in class names and correct file path in floodmap.xml.
author | Christian Lins <christian.lins@intevation.de> |
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date | Mon, 17 Dec 2012 23:24:27 +0100 |
parents | 02cf2b1dff84 |
children | 5014a84c0c7d |
rev | line source |
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Added a service to get some basic spatial information used for map creation.
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1 package de.intevation.flys.client.server; |
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2 |
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3 import com.google.gwt.user.server.rpc.RemoteServiceServlet; |
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4 |
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5 import de.intevation.artifacts.common.utils.XMLUtils; |
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6 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator; |
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7 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; |
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8 import de.intevation.artifacts.httpclient.http.HttpClient; |
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9 import de.intevation.artifacts.httpclient.http.HttpClientImpl; |
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10 import de.intevation.flys.client.client.services.MapInfoService; |
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11 import de.intevation.flys.client.shared.exceptions.ServerException; |
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12 import de.intevation.flys.client.shared.model.BBox; |
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13 import de.intevation.flys.client.shared.model.MapInfo; |
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14 |
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15 import org.apache.log4j.Logger; |
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16 import org.w3c.dom.Document; |
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17 import org.w3c.dom.Element; |
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18 |
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19 |
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20 /** |
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21 * This service fetches a document that contains meta information for a specific |
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22 * chart. |
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23 * |
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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25 */ |
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26 public class MapInfoServiceImpl |
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27 extends RemoteServiceServlet |
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28 implements MapInfoService |
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29 { |
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30 private static final Logger logger = |
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31 Logger.getLogger(MapInfoServiceImpl.class); |
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32 |
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33 |
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34 public static final String XPATH_RIVER = |
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35 "/mapinfo/river/@name"; |
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36 |
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37 public static final String XPATH_SRID = |
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38 "/mapinfo/river/srid/@value"; |
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39 |
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40 public static final String XPATH_BBOX = |
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41 "/mapinfo/river/bbox/@value"; |
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42 |
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43 public static final String XPATH_RIVER_WMS = |
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44 "/mapinfo/river/river-wms/@url"; |
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45 |
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46 public static final String XPATH_RIVER_WMS_LAYERS = |
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47 "/mapinfo/river/river-wms/@layers"; |
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48 |
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49 public static final String XPATH_WMS_URL = |
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50 "/mapinfo/river/background-wms/@url"; |
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51 |
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52 public static final String XPATH_WMS_LAYERS = |
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53 "/mapinfo/river/background-wms/@layers"; |
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54 |
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55 public static final String ERROR_NO_MAPINFO_FOUND = |
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56 "mapinfo_service_no_result"; |
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57 |
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58 |
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59 @Override |
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60 public MapInfo getMapInfo(String locale, String river) |
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61 throws ServerException |
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62 { |
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63 logger.info("MapInfoServiceImpl.getMapInfo"); |
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64 |
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65 String url = getServletContext().getInitParameter("server-url"); |
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66 |
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67 Document request = getRequestDocument(river);; |
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68 |
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69 HttpClient client = new HttpClientImpl(url, locale); |
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70 |
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71 try { |
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72 logger.debug("MapInfoServiceImpl.callService"); |
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73 Document result = client.callService(url, "mapinfo", request); |
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74 |
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75 if (result == null) { |
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76 logger.warn("MapInfo service returned no result."); |
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77 throw new ServerException(ERROR_NO_MAPINFO_FOUND); |
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78 } |
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79 |
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80 return getMapInfo(result); |
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81 } |
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82 catch (ConnectionException ce) { |
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83 logger.error(ce, ce); |
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84 } |
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85 |
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86 throw new ServerException(ERROR_NO_MAPINFO_FOUND); |
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87 } |
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88 |
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89 |
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90 public static Document getRequestDocument(String rivername) { |
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91 logger.debug("MapInfoServiceImpl.getRequestDocument"); |
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92 |
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93 Document request = XMLUtils.newDocument(); |
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94 ElementCreator cr = new ElementCreator(request, null, null); |
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95 |
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96 Element root = cr.create("mapinfo"); |
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97 Element river = cr.create("river"); |
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98 |
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99 river.setTextContent(rivername); |
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100 |
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101 request.appendChild(root); |
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102 root.appendChild(river); |
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103 |
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104 return request; |
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105 } |
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106 |
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107 |
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108 public static MapInfo getMapInfo(Document result) { |
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109 logger.debug("MapInfoServiceImpl.getMapInfo"); |
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110 |
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111 String river = XMLUtils.xpathString(result, XPATH_RIVER, null); |
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112 String sridStr = XMLUtils.xpathString(result, XPATH_SRID, null); |
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113 String bboxS = XMLUtils.xpathString(result, XPATH_BBOX, null); |
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114 BBox bbox = BBox.getBBoxFromString(bboxS); |
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115 |
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02cf2b1dff84
Make floodmap riveraxis layer name configurable.
Christian Lins <christian.lins@intevation.de>
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116 String riverWMS = XMLUtils.xpathString(result, XPATH_RIVER_WMS, null); |
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Make floodmap riveraxis layer name configurable.
Christian Lins <christian.lins@intevation.de>
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117 String riverLayers = XMLUtils.xpathString(result, XPATH_RIVER_WMS_LAYERS, null); |
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118 String wmsURL = XMLUtils.xpathString(result, XPATH_WMS_URL, null); |
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119 String wmsLayers = XMLUtils.xpathString(result, XPATH_WMS_LAYERS, null); |
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120 |
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121 int srid = 4326; |
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122 |
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123 try { |
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124 srid = Integer.parseInt(sridStr); |
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125 } |
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126 catch (NumberFormatException nfe) { |
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127 // do nothing |
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128 } |
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129 |
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Make floodmap riveraxis layer name configurable.
Christian Lins <christian.lins@intevation.de>
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130 return new MapInfo(river, srid, bbox, riverWMS, riverLayers, wmsURL, wmsLayers); |
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131 } |
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132 } |
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133 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |