Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/CoordinateSelectionState.java @ 436:6642ab6c583c

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Added vectorizer rings callback which generates polygon datasets suitable for polygon plots. gnv-artifacts/trunk@484 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 26 Dec 2009 15:32:08 +0000
parents e964a3d8f7bc
children 3ddc22aab764
rev   line source
335
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.state;
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5
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6 import java.util.ArrayList;
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7 import java.util.Collection;
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8 import java.util.Iterator;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import com.vividsolutions.jts.geom.Point;
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13 import com.vividsolutions.jts.io.ParseException;
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14 import com.vividsolutions.jts.io.WKTReader;
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15
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16 import de.intevation.gnv.geobackend.base.Result;
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17 import de.intevation.gnv.state.describedata.DefaultKeyValueDescribeData;
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18 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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19 import de.intevation.gnv.state.describedata.NamedArrayList;
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20 import de.intevation.gnv.state.describedata.NamedCollection;
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21 import de.intevation.gnv.utils.InputValidator;
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22 import de.intevation.gnv.utils.exception.ValidationException;
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23
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24 /**
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25 * @author Tim Englich <tim.englich@intevation.de>
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26 *
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27 */
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28 public class CoordinateSelectionState extends StateBase {
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29
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30 /**
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31 * the logger, used to log exceptions and additonaly information
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32 */
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33 private static Logger log = Logger.getLogger(CoordinateSelectionState.class);
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34
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35 /**
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36 * The UID of this Class
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37 */
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38 private static final long serialVersionUID = 6318923553625195063L;
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39
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40 /**
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41 * Constructor
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42 */
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43 public CoordinateSelectionState() {
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44 super();
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45 }
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46
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47 @Override
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48 protected void purifyResult(Collection<Result> result, String uuid) {
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49 log.debug("CoordinateSelectionState.purifyResult");
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50 Collection<Object> describeData = this.getDescibeData(uuid);
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51 if (describeData == null) {
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52 describeData = new ArrayList<Object>();
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53 }
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54 NamedCollection<KeyValueDescibeData> keyValueDescibeData = this
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55 .extractKVP(result, "FEATUREID", "SHAPE");
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56 describeData.add(keyValueDescibeData);
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57 this.setDescibeData(uuid, describeData);
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58 }
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59
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60 @Override
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61 protected String prepareInputData4RegionDBQuery(String value) {
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62 log.debug("CoordinateSelectionState.prepareInputData4RegionDBQuery");
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63 double distance=0.;
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64 String returnValue = null;
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65 try {
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66 Point center = new InputValidator().getPointValue(value);
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67 String meshIDValue = super.inputData.get("meshid").getValue();
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68 int segments = 97;
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69 int meshid = new Integer(meshIDValue);
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70 if (meshid == 3 || meshid == 5){ // TODO nicht hier festbrennen.
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71 distance = 0.15; //nord-ostsee 6nm // 97 St�tzpunkte
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72 }else if (meshid == 1 || meshid == 4){
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73 distance = 0.03; //Kuestenmodell 1 nm
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74 }else if (meshid == 2 || meshid == 321){
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75 distance = 0.3; //SST Karten ca 20km
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76 }else if (meshid == 641){
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77 distance = 0.3; //Eisdaten Klima
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78 }
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79 returnValue = center.buffer(distance,segments).toText();
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80 } catch (NumberFormatException e) {
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81 log.error(e,e);
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82 } catch (ValidationException e) {
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83 log.error(e,e);
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84 }
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85 return returnValue;
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86
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87 }
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88
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89 /**
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90 * @see de.intevation.gnv.state.StateBase#extractKVP(java.util.Collection, java.lang.String, java.lang.String)
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91 */
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92 @Override
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93 protected NamedCollection<KeyValueDescibeData> extractKVP(
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94 Collection<Result> result,
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95 String keyid,
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96 String valueid) {
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97 Iterator<Result> rit = result.iterator();
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98 NamedCollection<KeyValueDescibeData> keyValueDescibeData = new NamedArrayList<KeyValueDescibeData>(
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99 this.dataName, result.size());
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100 keyValueDescibeData.setMultiSelect(this.dataMultiSelect);
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101 String prevKey = null;
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102 while (rit.hasNext()) {
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103 Result resultValue = rit.next();
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104 String key = resultValue.getString(keyid);
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105 if(prevKey == null || !prevKey.equals(key)){ // m�ssen wir so machen, da die sde kein select distinct auf layern zul�sst.
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106 String geomString = this.convert2DisplayCoordinate(resultValue.getString(valueid));
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107 String value = geomString;
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108 if (resultValue.getResultDescriptor().getColumnIndex("VALUE") > 0){
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109 value = resultValue.getString("VALUE") + " - "+value;
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110 }
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111
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112
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113 keyValueDescibeData.add(new DefaultKeyValueDescribeData(key,value ));
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114 }
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115 prevKey = key;
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116 }
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117 return keyValueDescibeData;
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118 }
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119
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120 protected String convert2DisplayCoordinate(String wkt){
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121 String formattedCoordinate = null;
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122 try {
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123 Point p = (Point)new WKTReader().read(wkt);
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124 double lat = p.getY();
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125 double lon =p.getX();
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126 String nord="N";
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127 String ost="E";
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128 if (lat <0 ){nord="S"; lat=-lat;}
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129 if (lon <0 ){ost="W"; lon=-lon;}
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130 formattedCoordinate = String.format("%1$02d�%2$1S %3$05.2f' %4$03d�%5$1S %6$05.2f'",
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131 (int)lat, nord,60.*(lat-((int)lat)),(int)lon,ost,60.*(lon-((int)lon)));
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132 } catch (ParseException e) {
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133 log.error(e,e);
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134 }
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135
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136 return formattedCoordinate;
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137 }
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138 }
http://dive4elements.wald.intevation.org