Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/MapPrintServiceImpl.java @ 2503:e3bd1f412421
Added GET parameters to map printer
flys-client/trunk@4348 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 04 May 2012 17:03:04 +0000 |
parents | 328aa273ef3b |
children | 425bc486a40f |
rev | line source |
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328aa273ef3b
Call MapPrinter directly and not via the MapFish Print servlet.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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1 package de.intevation.flys.client.server; |
328aa273ef3b
Call MapPrinter directly and not via the MapFish Print servlet.
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parents:
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2 |
328aa273ef3b
Call MapPrinter directly and not via the MapFish Print servlet.
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parents:
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3 import java.io.File; |
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4 import java.io.IOException; |
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5 import java.io.InputStream; |
328aa273ef3b
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6 import java.io.FileOutputStream; |
328aa273ef3b
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7 import java.io.FileInputStream; |
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8 import java.io.BufferedInputStream; |
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9 import java.io.BufferedOutputStream; |
328aa273ef3b
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10 import java.io.OutputStream; |
328aa273ef3b
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11 |
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12 import javax.servlet.ServletException; |
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13 |
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14 import javax.servlet.http.HttpServlet; |
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15 import javax.servlet.http.HttpServletRequest; |
328aa273ef3b
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16 import javax.servlet.http.HttpServletResponse; |
328aa273ef3b
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17 |
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18 import org.apache.log4j.Logger; |
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19 |
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20 import org.mapfish.print.MapPrinter; |
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21 |
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22 import org.mapfish.print.output.OutputFactory; |
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23 import org.mapfish.print.output.OutputFormat; |
328aa273ef3b
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24 |
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25 import org.mapfish.print.utils.PJsonObject; |
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26 |
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Added GET parameters to map printer
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27 import de.intevation.artifacts.common.utils.StringUtils; |
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28 import de.intevation.artifacts.common.utils.XMLUtils; |
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29 import de.intevation.artifacts.common.utils.ClientProtocolUtils; |
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30 |
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31 import de.intevation.artifacts.httpclient.http.HttpClient; |
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32 import de.intevation.artifacts.httpclient.http.HttpClientImpl; |
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33 import de.intevation.artifacts.httpclient.exceptions.ConnectionException; |
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34 |
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Added GET parameters to map printer
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35 import org.w3c.dom.Document; |
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36 |
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Added GET parameters to map printer
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37 import de.intevation.flys.client.shared.model.MapConfig; |
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38 |
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parents:
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39 public class MapPrintServiceImpl |
328aa273ef3b
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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40 extends HttpServlet |
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41 { |
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42 private static final Logger log = |
328aa273ef3b
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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43 Logger.getLogger(MapPrintServiceImpl.class); |
328aa273ef3b
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parents:
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44 |
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45 private static final String DEMO_JSON = |
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46 "{" + |
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47 "\"layout\": \"A4 portrait\"," + |
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48 "\"title\": \"A simple example\"," + |
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49 "\"srs\": \"EPSG:4326\"," + |
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50 "\"dpi\": 254," + |
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51 "\"units\": \"degrees\"," + |
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52 "\"outputFormat\": \"pdf\"," + |
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53 "\"layers\": [{" + |
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54 " \"type\": \"WMS\"," + |
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55 " \"layers\": [\"basic\"]," + |
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56 " \"baseURL\": \"http://labs.metacarta.com/wms/vmap0\"," + |
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57 " \"format\": \"image/jpeg\"" + |
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58 "}," + |
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59 "{" + |
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60 " \"type\": \"WMS\"," + |
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61 " \"layers\": [\"routes\"]," + |
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62 " \"baseURL\": \"http://www.camptocamp.org/cgi-bin/mapserv_c2corg\"," + |
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63 " \"format\": \"image/png\"" + |
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64 "}, {" + |
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65 "\"opacity\": 0.5," + |
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66 "\"customParams\": {}," + |
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67 "\"type\": \"Vector\"," + |
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68 "\"styles\": {" + |
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69 " \"1\": {" + |
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70 " \"fillColor\": \"red\"," + |
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71 " \"strokeColor\": \"red\"," + |
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72 " \"fillOpacity\": 0.4000000000000001," + |
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73 " \"hoverFillColor\": \"white\"," + |
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74 " \"hoverFillOpacity\": 0.8000000000000002," + |
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75 " \"strokeOpacity\": 1," + |
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76 " \"strokeWidth\": 0.5," + |
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77 " \"strokeLinecap\": \"round\"," + |
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78 " \"strokeDashstyle\": \"solid\"," + |
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79 " \"hoverStrokeColor\": \"red\"," + |
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80 " \"hoverStrokeOpacity\": 1.0," + |
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81 " \"hoverStrokeWidth\": 0.2," + |
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82 " \"pointRadius\": 6," + |
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83 " \"hoverPointRadius\": 1," + |
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84 " \"hoverPointUnit\": \"%\"," + |
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85 " \"pointerEvents\": \"visiblePainted\"," + |
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86 " \"cursor\": \"inherit\"" + |
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87 " }" + |
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88 "}," + |
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89 "\"styleProperty\": \"_style\"," + |
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90 "\"geoJson\": {" + |
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91 " \"type\": \"FeatureCollection\"," + |
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92 " \"features\": [{" + |
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93 " \"type\": \"Feature\"," + |
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94 " \"id\": \"OpenLayers.Feature.Vector_243\"," + |
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95 " \"properties\": {" + |
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96 " \"_style\": 1," + |
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97 " \"name\": \"\"," + |
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98 " \"description\": \"\"," + |
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99 " \"ext-comp-1048\": \"default\"" + |
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100 " }," + |
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101 " \"geometry\": {" + |
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102 " \"type\": \"Polygon\"," + |
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103 " \"coordinates\": [[[5, 45], [5, 47], [7, 47], [7, 45], [5, 45]]]" + |
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104 " }" + |
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105 " }]" + |
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106 "}," + |
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107 "\"name\": \"Cosmetic\"" + |
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108 " }" + |
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109 "]," + |
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110 "\"pages\": [" + |
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111 " {" + |
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112 " \"center\": [6, 45.5]," + |
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113 " \"scale\": 4000000," + |
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114 " \"mapTitle\": \"First map\"," + |
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115 " \"comment\": \"This is the first page selected by the user.\"," + |
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116 " \"rotation\": 0," + |
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117 " \"data\": {" + |
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118 " \"data\": [" + |
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119 " {\"id\":1, \"name\": \"blah\", \"icon\": \"icon_pan\", \"nameBackgroundColor\": \"red\", \"nameBorderColor\": \"blue\"}," + |
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120 " {\"id\":2, \"name\": \"blip\", \"icon\": \"icon_zoomin\", \"nameBackgroundColor\": \"yellow\", \"nameBorderColor\": \"green\"}" + |
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121 " ]," + |
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122 " \"columns\": [\"id\", \"name\", \"icon\"]" + |
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123 " }" + |
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124 " },{" + |
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125 " \"center\": [6, 45.5]," + |
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126 " \"scale\": 4000000," + |
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127 " \"mapTitle\": \"First map\"," + |
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128 " \"comment\": \"This is the first page selected by the user.\"," + |
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129 " \"rotation\": 0," + |
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130 " \"data\": {" + |
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131 " \"data\": [" + |
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132 " {\"id\":1, \"name\": \"blah\", \"icon\": \"icon_pan\", \"nameBackgroundColor\": \"red\", \"nameBorderColor\": \"blue\"}," + |
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133 " {\"id\":2, \"name\": \"blip\", \"icon\": \"icon_zoomin\", \"nameBackgroundColor\": \"yellow\", \"nameBorderColor\": \"green\"}" + |
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134 " ]," + |
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135 " \"columns\": [\"id\", \"name\", \"icon\"]" + |
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136 " }" + |
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137 " }" + |
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138 "]" + |
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139 "}"; |
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140 |
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141 |
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142 @Override |
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143 public void doGet(HttpServletRequest req, HttpServletResponse resp) |
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144 throws ServletException, IOException |
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145 { |
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146 log.info("MapPrintServiceImpl.doGet"); |
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147 |
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148 String uuid = req.getParameter("uuid"); |
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149 |
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150 if (uuid == null || !StringUtils.checkUUID(uuid)) { |
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151 throw new ServletException("Missing or misspelled UUID"); |
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152 } |
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153 |
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154 String minXS = req.getParameter("minx"); |
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155 String maxXS = req.getParameter("maxx"); |
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156 String minYS = req.getParameter("miny"); |
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157 String maxYS = req.getParameter("maxy"); |
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158 |
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159 if (minXS == null || maxXS == null |
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160 || minYS == null || maxYS == null) { |
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161 throw new ServletException("Missing minX, minY, maxX or maxY"); |
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162 } |
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163 |
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164 double minX, maxX, minY, maxY; |
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165 |
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166 try { |
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167 minX = Double.parseDouble(minXS); |
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168 minY = Double.parseDouble(minYS); |
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169 maxX = Double.parseDouble(maxXS); |
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170 maxY = Double.parseDouble(maxYS); |
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171 } |
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172 catch (NumberFormatException nfe) { |
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173 throw new ServletException("Misspelled minX, minY, maxX or maxY"); |
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174 } |
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175 |
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176 String mapType = req.getParameter("maptype"); |
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177 |
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178 if (mapType == null || !mapType.equals("map")) { |
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179 mapType = "floodmap"; |
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180 } |
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181 |
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182 String url = getURL(); |
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183 |
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184 Document request = ClientProtocolUtils.newOutCollectionDocument( |
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185 uuid, mapType, mapType); |
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186 |
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187 Document result; |
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188 try { |
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189 HttpClient client = new HttpClientImpl(url); |
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190 InputStream is = client.collectionOut(request, uuid, mapType); |
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191 try { |
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192 result = XMLUtils.parseDocument(is); |
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193 } |
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194 finally { |
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195 is.close(); |
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196 } |
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197 } |
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198 catch (ConnectionException ce) { |
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199 log.error(ce); |
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200 throw new ServletException(ce); |
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201 } |
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202 |
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203 MapConfig mapConfig = MapHelper.parseConfig(result); |
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204 |
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205 System.err.println(XMLUtils.toString(result)); |
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206 |
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207 producePDF(DEMO_JSON, resp); |
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208 } |
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209 |
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210 protected String getURL() throws ServletException { |
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211 String url = getServletContext().getInitParameter("server-url"); |
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212 if (url == null) { |
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213 throw new ServletException("Missing server-url"); |
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214 } |
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215 return url; |
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216 } |
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217 |
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218 protected MapPrinter getMapPrinter() throws ServletException, IOException { |
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219 String configPath = getInitParameter("config"); |
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220 if (configPath == null) { |
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221 throw new ServletException("Missing configuration in web.xml"); |
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222 } |
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223 |
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224 File configFile = new File(configPath); |
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225 if (!configFile.isAbsolute()) { |
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226 configFile = new File(getServletContext().getRealPath(configPath)); |
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227 } |
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228 |
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229 if (!configFile.isFile() || !configFile.canRead()) { |
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230 throw new ServletException("Cannot read '" + configFile + "'"); |
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231 } |
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232 |
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233 return new MapPrinter(configFile); |
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234 } |
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235 |
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Added GET parameters to map printer
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236 |
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237 protected void producePDF(String json, HttpServletResponse resp) |
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238 throws ServletException, IOException |
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239 { |
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240 PJsonObject jsonSpec = MapPrinter.parseSpec(DEMO_JSON); |
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241 |
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242 MapPrinter printer = getMapPrinter(); |
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243 |
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244 OutputFormat outputFormat = OutputFactory.create( |
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245 printer.getConfig(), jsonSpec); |
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246 |
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247 resp.setHeader("Content-Disposition", "attachment;filename=print.pdf"); |
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248 resp.setHeader("Content-Type", "application/pdf"); |
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249 |
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250 // XXX: Streaming the generated PDF directly |
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251 // to the request out does not work. :-/ |
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252 File tmpFile = File.createTempFile("map-printing", null); |
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253 |
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254 try { |
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255 OutputStream out = |
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256 new BufferedOutputStream( |
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257 new FileOutputStream(tmpFile)); |
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258 try { |
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259 outputFormat.print(printer, jsonSpec, out, ""); |
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260 out.flush(); |
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261 } |
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262 catch (Exception e) { |
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263 log.error(e); |
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264 throw new ServletException(e); |
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265 } |
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266 finally { |
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267 printer.stop(); |
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268 out.close(); |
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269 } |
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270 InputStream in = |
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271 new BufferedInputStream( |
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272 new FileInputStream(tmpFile)); |
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273 out = resp.getOutputStream(); |
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274 try { |
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275 byte [] buf = new byte[4096]; |
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276 int r; |
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277 while ((r = in.read(buf)) >= 0) { |
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278 out.write(buf, 0, r); |
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279 } |
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280 out.flush(); |
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281 } |
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282 finally { |
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283 in.close(); |
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284 out.close(); |
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285 } |
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286 } |
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287 finally { |
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288 if (tmpFile.exists()) { |
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289 tmpFile.delete(); |
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290 } |
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291 } |
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292 } |
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293 } |
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294 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |