Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/MapInfoService.java @ 2089:0da8874bd378

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Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents cbeeaaad1056
children a18ec861b4a4
rev   line source
1058
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
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1 package de.intevation.flys.artifacts.services;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import org.w3c.dom.Document;
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6 import org.w3c.dom.Element;
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7
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092e1e5020bc Added a new MapGenerator which only returns a map configuration document at the moment (work still in progress).
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8 import com.vividsolutions.jts.geom.Envelope;
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9
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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
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13 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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14 import de.intevation.artifacts.common.utils.Config;
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15 import de.intevation.artifacts.common.utils.XMLUtils;
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16 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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17
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18 import de.intevation.artifactdatabase.DefaultService;
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19
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20 import de.intevation.flys.model.River;
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21
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22 import de.intevation.flys.model.RiverAxis;
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23 import de.intevation.flys.utils.GeometryUtils;
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24
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25 /**
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26 * This service provides information about the supported rivers by this
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27 * application.
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28 *
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29 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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30 */
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31 public class MapInfoService extends DefaultService {
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32
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33 /** XPath that points to the river.*/
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34 public static final String XPATH_RIVER = "/mapinfo/river/text()";
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35
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36 public static final String XPATH_RIVER_PROJECTION =
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37 "/artifact-database/floodmap/river[@name='%RIVER%']/srid/@value";
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38
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39 public static final String XPATH_RIVER_BACKGROUND =
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40 "/artifact-database/floodmap/river[@name='%RIVER%']/background-wms";
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41
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42 public static final String XPATH_RIVER_WMS =
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43 "/artifact-database/floodmap/river[@name='%RIVER%']/river-wms/@url";
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44
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45
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46 /** The logger used in this service.*/
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47 private static Logger logger = Logger.getLogger(MapInfoService.class);
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48
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49
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50 /**
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51 * The default constructor.
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52 */
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53 public MapInfoService() {
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54 }
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56
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57 public Document process(
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58 Document data,
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59 GlobalContext globalContext,
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60 CallMeta callMeta
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61 ) {
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62 logger.debug("MapInfoService.process");
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63
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64 Document result = XMLUtils.newDocument();
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65 ElementCreator cr = new ElementCreator(result, null, null);
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66
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67 Element mapinfo = cr.create("mapinfo");
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68 result.appendChild(mapinfo);
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69
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70 String river = extractRiver(data);
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71 if (river == null || river.length() == 0) {
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72 logger.warn("Cannot generate information: river is empty!");
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73 return result;
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74 }
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75
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76 Element root = cr.create("river");
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77 cr.addAttr(root, "name", river);
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78 mapinfo.appendChild(root);
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79
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80 Envelope env = GeometryUtils.getRiverBoundary(river);
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81 if (env != null) {
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82 String bounds = GeometryUtils.jtsBoundsToOLBounds(env);
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83 logger.debug("River '" + river + "' bounds: " + bounds);
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84
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85 Element bbox = cr.create("bbox");
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86 cr.addAttr(bbox, "value", bounds);
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87 root.appendChild(bbox);
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88 }
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89
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90 String xpathS = XPATH_RIVER_PROJECTION.replace("%RIVER%", river);
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91 String sridStr = Config.getStringXPath(xpathS);
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92 if (sridStr != null && sridStr.length() > 0) {
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93 Element srid = cr.create("srid");
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94 cr.addAttr(srid, "value", sridStr);
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95 root.appendChild(srid);
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96 }
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97
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98 String xpathB = XPATH_RIVER_BACKGROUND.replace("%RIVER%", river);
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99 Element back = (Element) Config.getNodeXPath(xpathB);
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100 if (back != null) {
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101 Element background = cr.create("background-wms");
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102 cr.addAttr(background, "url", back.getAttribute("url"));
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103 cr.addAttr(background, "layers", back.getAttribute("layers"));
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104 root.appendChild(background);
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105 }
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106
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107 String xpathWMS = XPATH_RIVER_WMS.replace("%RIVER%", river);
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108 String wmsStr = Config.getStringXPath(xpathWMS);
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109 if (wmsStr != null && wmsStr.length() > 0) {
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110 Element wms = cr.create("river-wms");
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111 cr.addAttr(wms, "url", wmsStr);
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112 root.appendChild(wms);
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113 }
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114
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115 return result;
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116 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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117
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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118
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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119 protected String extractRiver(Document data) {
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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120 return XMLUtils.xpathString(
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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121 data, XPATH_RIVER, ArtifactNamespaceContext.INSTANCE);
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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122 }
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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123 }
c37084f31c84 Implemented a MapInfo service that returns some basic information to create maps for specific rivers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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124 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org