svn-gvsig-desktop / tags / gvSIGv0_6_1RELEASE / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 5222
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1 | 3323 | ldiaz | |
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2 | package org.gvsig.remoteClient.wms.wms_1_1_1; |
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3 | |||
4 | 3516 | jaume | import java.io.ByteArrayInputStream; |
5 | 3323 | ldiaz | import java.io.File; |
6 | import java.io.FileNotFoundException; |
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7 | import java.io.FileReader; |
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8 | import java.io.IOException; |
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9 | 3516 | jaume | import java.io.InputStreamReader; |
10 | import java.io.Reader; |
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11 | import java.util.ArrayList; |
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12 | 3323 | ldiaz | import java.util.TreeMap; |
13 | |||
14 | import org.gvsig.remoteClient.utils.CapabilitiesTags; |
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15 | 3516 | jaume | import org.gvsig.remoteClient.utils.ExceptionTags; |
16 | import org.kxml2.io.KXmlParser; |
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17 | 3323 | ldiaz | import org.xmlpull.v1.XmlPullParserException; |
18 | |||
19 | /**
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20 | * <p>
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21 | * Describes the handler to comunicate to a WMS 1.1.1
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22 | * </p>
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23 | */
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24 | public class WMSProtocolHandler1_1_1 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
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25 | 3592 | jaume | private WMSLayer1_1_1 fakeRootLayer;
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26 | |||
27 | 3323 | ldiaz | public WMSProtocolHandler1_1_1()
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28 | { |
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29 | 3341 | ldiaz | this.version = "1.1.1"; |
30 | this.name = "WMS1.1.1"; |
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31 | this.serviceInfo = new ServiceInformation(); |
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32 | this.layers = new TreeMap(); |
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33 | 3323 | ldiaz | } |
34 | |||
35 | //------------------------------------------------------------------------------
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36 | // Parsing methods....
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37 | //------------------------------------------------------------------------------
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38 | /**
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39 | * <p>Parse the xml data retrieved from the WMS, it will parse the WMS Capabilities</p>
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40 | *
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41 | */
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42 | public void parse(File f) |
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43 | { |
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44 | FileReader reader = null; |
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45 | try
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46 | { |
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47 | reader = new FileReader(f); |
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48 | } |
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49 | catch(FileNotFoundException ex) { |
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50 | 3404 | jaume | ex.printStackTrace(); |
51 | 3323 | ldiaz | } |
52 | |||
53 | int tag;
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54 | KXmlParser kxmlParser = null;
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55 | kxmlParser = new KXmlParser();
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56 | try
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57 | { |
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58 | kxmlParser.setInput(reader); |
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59 | kxmlParser.nextTag(); |
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60 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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61 | { |
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62 | 3687 | ldiaz | kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
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63 | 3323 | ldiaz | tag = kxmlParser.nextTag(); |
64 | while(tag != KXmlParser.END_DOCUMENT)
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65 | { |
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66 | 3655 | jaume | switch(tag)
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67 | 3323 | ldiaz | { |
68 | 3655 | jaume | |
69 | 3323 | ldiaz | case KXmlParser.START_TAG:
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70 | if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
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71 | { |
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72 | parseServiceTag(kxmlParser); |
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73 | } |
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74 | else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
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75 | { |
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76 | parseCapabilityTag(kxmlParser); |
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77 | } |
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78 | break;
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79 | case KXmlParser.END_TAG:
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80 | break;
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81 | case KXmlParser.TEXT:
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82 | 3925 | ldiaz | //System.out.println("[TEXT]["+kxmlParser.getText()+"]");
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83 | 3323 | ldiaz | break;
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84 | } |
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85 | tag = kxmlParser.next(); |
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86 | } |
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87 | 3516 | jaume | kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
88 | 3323 | ldiaz | } |
89 | } |
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90 | catch(XmlPullParserException parser_ex){
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91 | 3404 | jaume | parser_ex.printStackTrace(); |
92 | 3323 | ldiaz | } |
93 | catch (IOException ioe) { |
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94 | 3404 | jaume | ioe.printStackTrace(); |
95 | 3592 | jaume | } finally {
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96 | |||
97 | } |
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98 | 3323 | ldiaz | // In the parsing process the layer has been filled
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99 | } |
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100 | |||
101 | /**
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102 | * <p>Parses the Service Information </p>
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103 | */
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104 | private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
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105 | { |
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106 | int currentTag;
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107 | boolean end = false; |
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108 | |||
109 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
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110 | currentTag = parser.next(); |
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111 | |||
112 | while (!end)
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113 | { |
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114 | switch(currentTag)
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115 | { |
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116 | case KXmlParser.START_TAG:
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117 | if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
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118 | { |
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119 | serviceInfo.name = parser.nextText(); |
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120 | } |
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121 | else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
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122 | { |
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123 | serviceInfo.title = parser.nextText(); |
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124 | } |
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125 | else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
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126 | { |
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127 | serviceInfo.abstr = parser.nextText(); |
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128 | } |
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129 | 4019 | ldiaz | else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
130 | { |
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131 | String value = new String(); |
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132 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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133 | if (value != null){ |
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134 | serviceInfo.online_resource = value; |
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135 | } |
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136 | } |
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137 | 3323 | ldiaz | else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
138 | (parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
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139 | { |
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140 | parser.skipSubTree(); |
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141 | } |
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142 | break;
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143 | case KXmlParser.END_TAG:
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144 | if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
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145 | end = true;
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146 | break;
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147 | case KXmlParser.TEXT:
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148 | break;
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149 | } |
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150 | 3655 | jaume | if (!end)
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151 | currentTag = parser.next(); |
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152 | 3323 | ldiaz | } |
153 | 3655 | jaume | parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
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154 | 3323 | ldiaz | } |
155 | /**
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156 | * <p>Parses the Capability Tag </p>
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157 | */
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158 | private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
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159 | { |
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160 | int currentTag;
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161 | boolean end = false; |
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162 | 4036 | ldiaz | |
163 | 3323 | ldiaz | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
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164 | currentTag = parser.next(); |
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165 | |||
166 | while (!end)
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167 | { |
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168 | switch(currentTag)
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169 | { |
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170 | case KXmlParser.START_TAG:
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171 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
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172 | { |
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173 | parseRequestTag(parser); |
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174 | } |
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175 | else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
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176 | { |
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177 | 4036 | ldiaz | //TODO:
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178 | //Add to serviceInfo the supported formats for the exceptions????
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179 | 3323 | ldiaz | } |
180 | else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
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181 | { |
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182 | WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
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183 | 3911 | ldiaz | lyr.parse(parser, layers); |
184 | |||
185 | 3592 | jaume | if (rootLayer == null) |
186 | rootLayer = lyr; |
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187 | else {
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188 | // Handles when there is no general root layer, will use
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189 | // a fake non-queryable one.
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190 | if (!rootLayer.equals(getFakeRootLayer())){
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191 | WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
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192 | rootLayer = getFakeRootLayer(); |
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193 | rootLayer.getChildren().add(aux); |
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194 | } |
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195 | rootLayer.getChildren().add(lyr); |
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196 | } |
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197 | 3911 | ldiaz | |
198 | 3483 | jaume | if (lyr.getName()!=null) |
199 | 3911 | ldiaz | layers.put(lyr.getName(), lyr); |
200 | |||
201 | // Collection layerCollection = layers.values();
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202 | // Iterator iter = layerCollection.iterator();
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203 | // while (iter.hasNext())
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204 | // {
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205 | // WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
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206 | // //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
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207 | // for (i=0;i<layer.getAllSrs().size();i++)
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208 | // {
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209 | //// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
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210 | //// {
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211 | //// this.srs.add(layer.getAllSrs().elementAt(i));
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212 | //// }
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213 | // }
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214 | // }
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215 | 3323 | ldiaz | } |
216 | else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
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217 | (parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
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218 | 3516 | jaume | |
219 | 3323 | ldiaz | { |
220 | parser.skipSubTree(); |
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221 | } |
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222 | break;
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223 | case KXmlParser.END_TAG:
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224 | if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
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225 | end = true;
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226 | break;
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227 | case KXmlParser.TEXT:
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228 | break;
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229 | } |
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230 | 4049 | ldiaz | if (!end)
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231 | currentTag = parser.next(); |
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232 | 3323 | ldiaz | } |
233 | 3341 | ldiaz | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
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234 | 3323 | ldiaz | } |
235 | |||
236 | /**
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237 | * <p>Parses the Request tag </p>
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238 | */
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239 | private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
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240 | { |
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241 | int currentTag;
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242 | boolean end = false; |
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243 | |||
244 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
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245 | currentTag = parser.next(); |
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246 | |||
247 | while (!end)
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248 | { |
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249 | switch(currentTag)
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250 | { |
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251 | case KXmlParser.START_TAG:
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252 | if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
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253 | { |
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254 | 4036 | ldiaz | serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
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255 | 3323 | ldiaz | } |
256 | else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
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257 | { |
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258 | 4036 | ldiaz | // put a null to this key?
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259 | // or leave it like it was with a CODE in a vector specifying this operation.
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260 | // WMSProtocolHandler.GETMAP_OPERATION
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261 | serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
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262 | 4019 | ldiaz | parseGetMapTag(parser); |
263 | 3323 | ldiaz | } |
264 | else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
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265 | { |
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266 | 4036 | ldiaz | //serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
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267 | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
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268 | 4019 | ldiaz | parseGetFeatureInfoTag(parser); |
269 | 3687 | ldiaz | } |
270 | else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
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271 | { |
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272 | 4036 | ldiaz | //serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
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273 | serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
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274 | 3687 | ldiaz | } |
275 | 3323 | ldiaz | break;
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276 | case KXmlParser.END_TAG:
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277 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
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278 | end = true;
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279 | break;
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280 | case KXmlParser.TEXT:
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281 | break;
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282 | } |
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283 | 4049 | ldiaz | if(!end)
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284 | currentTag = parser.next(); |
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285 | 3323 | ldiaz | } |
286 | // TODO: does not get such a tag when arrives here!!!!!!
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287 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
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288 | } |
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289 | 4019 | ldiaz | |
290 | /**
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291 | * <p>Parses the GetMap tag </p>
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292 | */
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293 | private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
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294 | { |
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295 | int currentTag;
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296 | boolean end = false; |
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297 | |||
298 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
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299 | currentTag = parser.next(); |
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300 | |||
301 | while (!end)
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302 | { |
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303 | switch(currentTag)
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304 | { |
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305 | case KXmlParser.START_TAG:
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306 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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307 | { |
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308 | serviceInfo.formats.add(parser.nextText()); |
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309 | } |
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310 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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311 | { |
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312 | currentTag = parser.nextTag(); |
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313 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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314 | { |
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315 | currentTag = parser.nextTag(); |
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316 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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317 | { |
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318 | currentTag = parser.nextTag(); |
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319 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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320 | { |
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321 | String value = new String(); |
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322 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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323 | if (value != null){ |
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324 | 4036 | ldiaz | serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
325 | 4019 | ldiaz | } |
326 | } |
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327 | } |
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328 | } |
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329 | } |
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330 | break;
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331 | case KXmlParser.END_TAG:
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332 | if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
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333 | end = true;
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334 | break;
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335 | case KXmlParser.TEXT:
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336 | break;
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337 | } |
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338 | 4049 | ldiaz | if(!end)
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339 | currentTag = parser.next(); |
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340 | 4019 | ldiaz | } |
341 | } |
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342 | |||
343 | /**
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344 | * <p>Parses the GetMap tag </p>
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345 | */
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346 | private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
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347 | { |
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348 | int currentTag;
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349 | boolean end = false; |
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350 | |||
351 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
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352 | currentTag = parser.next(); |
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353 | |||
354 | while (!end)
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355 | { |
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356 | switch(currentTag)
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357 | { |
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358 | case KXmlParser.START_TAG:
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359 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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360 | { |
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361 | //TODO:
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362 | // add the supported formats by the GetFeatureInfo request
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363 | //serviceInfo.formats.add(parser.nextText());
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364 | } |
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365 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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366 | { |
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367 | currentTag = parser.nextTag(); |
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368 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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369 | { |
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370 | currentTag = parser.nextTag(); |
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371 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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372 | { |
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373 | currentTag = parser.nextTag(); |
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374 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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375 | { |
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376 | String value = new String(); |
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377 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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378 | if (value != null){ |
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379 | 5073 | jaume | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
380 | 4019 | ldiaz | } |
381 | } |
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382 | } |
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383 | } |
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384 | } |
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385 | break;
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386 | case KXmlParser.END_TAG:
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387 | if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
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388 | end = true;
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389 | break;
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390 | case KXmlParser.TEXT:
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391 | break;
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392 | } |
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393 | 4049 | ldiaz | if(!end)
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394 | currentTag = parser.next(); |
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395 | 4019 | ldiaz | } |
396 | } |
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397 | 3516 | jaume | |
398 | 3592 | jaume | private WMSLayer1_1_1 getFakeRootLayer(){
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399 | if (fakeRootLayer == null){ |
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400 | fakeRootLayer = new WMSLayer1_1_1();
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401 | fakeRootLayer.setTitle(serviceInfo.title); |
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402 | fakeRootLayer.setQueryable(false);
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403 | fakeRootLayer.setName(null);
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404 | } |
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405 | return fakeRootLayer;
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406 | } |
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407 | 3516 | jaume | /* (non-Javadoc)
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408 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
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409 | */
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410 | protected String parseException(byte[] data) { |
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411 | ArrayList errors = new ArrayList(); |
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412 | KXmlParser kxmlParser = new KXmlParser();
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413 | Reader reader = new InputStreamReader(new ByteArrayInputStream(data)); |
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414 | try
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415 | { |
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416 | kxmlParser.setInput(reader); |
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417 | int tag;
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418 | 3824 | ldiaz | |
419 | boolean end = false; |
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420 | tag = kxmlParser.nextTag(); |
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421 | |||
422 | kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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423 | |||
424 | while (!end)
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425 | { |
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426 | switch(tag)
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427 | { |
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428 | case KXmlParser.START_TAG:
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429 | 3516 | jaume | if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
430 | String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
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431 | errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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432 | String errorMessage = kxmlParser.nextText();
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433 | errors.add(errorCode+errorMessage); |
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434 | } |
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435 | break;
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436 | 3824 | ldiaz | case KXmlParser.END_TAG:
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437 | if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
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438 | end = true;
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439 | break;
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440 | 3516 | jaume | } |
441 | 3824 | ldiaz | if (!end)
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442 | { |
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443 | tag = kxmlParser.nextTag(); |
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444 | } |
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445 | 3516 | jaume | } |
446 | 3824 | ldiaz | } |
447 | 3516 | jaume | catch(XmlPullParserException parser_ex){
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448 | System.out.println(parser_ex.getMessage());
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449 | parser_ex.printStackTrace(); |
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450 | } |
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451 | catch (IOException ioe) { |
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452 | ioe.printStackTrace(); |
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453 | } |
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454 | String message = errors.size()>0? "" : null; |
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455 | for (int i = 0; i < errors.size(); i++) { |
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456 | message += (String) errors.get(i)+"\n"; |
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457 | } |
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458 | return message;
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459 | } |
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460 | 3323 | ldiaz | |
461 | } |