svn-gvsig-desktop / tags / v1_0_2_Build_892 / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 10278
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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 | 4500 | jaume | import java.io.BufferedReader; |
5 | 3516 | jaume | import java.io.ByteArrayInputStream; |
6 | 3323 | ldiaz | import java.io.File; |
7 | 4500 | jaume | import java.io.FileInputStream; |
8 | 3323 | ldiaz | import java.io.FileNotFoundException; |
9 | import java.io.FileReader; |
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10 | import java.io.IOException; |
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11 | 3516 | jaume | import java.util.ArrayList; |
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 | 4500 | jaume | { |
44 | 5539 | jaume | rootLayer = null;
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45 | 3323 | ldiaz | FileReader reader = null; |
46 | try
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47 | { |
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48 | reader = new FileReader(f); |
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49 | 4500 | jaume | BufferedReader br = new BufferedReader(reader); |
50 | char[] buffer = new char[100]; |
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51 | br.read(buffer); |
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52 | StringBuffer st = new StringBuffer(new String(buffer)); |
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53 | String searchText = "encoding=\""; |
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54 | int index = st.indexOf(searchText);
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55 | if (index>-1) { |
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56 | st.delete(0, index+searchText.length());
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57 | encoding = st.substring(0, st.indexOf("\"")); |
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58 | } |
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59 | } catch(FileNotFoundException ex) { |
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60 | 3404 | jaume | ex.printStackTrace(); |
61 | 4500 | jaume | } catch (IOException e) { |
62 | e.printStackTrace(); |
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63 | } |
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64 | 3323 | ldiaz | |
65 | int tag;
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66 | KXmlParser kxmlParser = null;
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67 | kxmlParser = new KXmlParser();
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68 | try
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69 | { |
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70 | 4500 | jaume | kxmlParser.setInput(new FileInputStream(f), encoding); |
71 | 3323 | ldiaz | kxmlParser.nextTag(); |
72 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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73 | { |
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74 | 3687 | ldiaz | kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
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75 | 3323 | ldiaz | tag = kxmlParser.nextTag(); |
76 | while(tag != KXmlParser.END_DOCUMENT)
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77 | { |
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78 | 3655 | jaume | switch(tag)
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79 | 3323 | ldiaz | { |
80 | 3655 | jaume | |
81 | 3323 | ldiaz | case KXmlParser.START_TAG:
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82 | if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
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83 | { |
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84 | parseServiceTag(kxmlParser); |
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85 | } |
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86 | else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
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87 | { |
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88 | parseCapabilityTag(kxmlParser); |
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89 | } |
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90 | break;
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91 | case KXmlParser.END_TAG:
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92 | break;
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93 | case KXmlParser.TEXT:
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94 | 4222 | jaume | //System.out.println("[TEXT]["+kxmlParser.getText()+"]");
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95 | 3323 | ldiaz | break;
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96 | } |
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97 | tag = kxmlParser.next(); |
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98 | } |
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99 | 3516 | jaume | kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
100 | 3323 | ldiaz | } |
101 | } |
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102 | catch(XmlPullParserException parser_ex){
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103 | 3404 | jaume | parser_ex.printStackTrace(); |
104 | 3323 | ldiaz | } |
105 | catch (IOException ioe) { |
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106 | 3404 | jaume | ioe.printStackTrace(); |
107 | 3592 | jaume | } finally {
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108 | |||
109 | } |
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110 | 3323 | ldiaz | // In the parsing process the layer has been filled
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111 | } |
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112 | |||
113 | /**
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114 | * <p>Parses the Service Information </p>
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115 | */
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116 | private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
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117 | { |
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118 | int currentTag;
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119 | boolean end = false; |
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120 | |||
121 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
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122 | currentTag = parser.next(); |
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123 | |||
124 | while (!end)
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125 | { |
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126 | switch(currentTag)
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127 | { |
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128 | case KXmlParser.START_TAG:
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129 | if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
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130 | { |
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131 | serviceInfo.name = parser.nextText(); |
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132 | } |
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133 | else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
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134 | { |
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135 | serviceInfo.title = parser.nextText(); |
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136 | } |
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137 | else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
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138 | { |
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139 | serviceInfo.abstr = parser.nextText(); |
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140 | } |
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141 | 4222 | jaume | else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
142 | { |
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143 | String value = new String(); |
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144 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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145 | if (value != null){ |
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146 | serviceInfo.online_resource = value; |
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147 | } |
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148 | } |
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149 | 3323 | ldiaz | else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
150 | (parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
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151 | { |
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152 | parser.skipSubTree(); |
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153 | } |
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154 | break;
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155 | case KXmlParser.END_TAG:
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156 | if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
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157 | end = true;
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158 | break;
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159 | case KXmlParser.TEXT:
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160 | break;
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161 | } |
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162 | 3655 | jaume | if (!end)
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163 | currentTag = parser.next(); |
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164 | 3323 | ldiaz | } |
165 | 3655 | jaume | parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
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166 | 3323 | ldiaz | } |
167 | /**
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168 | * <p>Parses the Capability Tag </p>
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169 | */
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170 | private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
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171 | { |
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172 | int currentTag;
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173 | boolean end = false; |
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174 | 4222 | jaume | |
175 | 3323 | ldiaz | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
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176 | currentTag = parser.next(); |
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177 | |||
178 | while (!end)
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179 | { |
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180 | switch(currentTag)
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181 | { |
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182 | case KXmlParser.START_TAG:
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183 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
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184 | { |
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185 | parseRequestTag(parser); |
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186 | } |
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187 | else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
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188 | { |
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189 | 4222 | jaume | //TODO:
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190 | //Add to serviceInfo the supported formats for the exceptions????
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191 | 3323 | ldiaz | } |
192 | else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
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193 | { |
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194 | WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
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195 | 4222 | jaume | lyr.parse(parser, layers); |
196 | |||
197 | 3592 | jaume | if (rootLayer == null) |
198 | rootLayer = lyr; |
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199 | else {
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200 | // Handles when there is no general root layer, will use
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201 | // a fake non-queryable one.
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202 | if (!rootLayer.equals(getFakeRootLayer())){
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203 | WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
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204 | rootLayer = getFakeRootLayer(); |
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205 | rootLayer.getChildren().add(aux); |
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206 | } |
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207 | rootLayer.getChildren().add(lyr); |
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208 | } |
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209 | 4222 | jaume | |
210 | 3483 | jaume | if (lyr.getName()!=null) |
211 | 4222 | jaume | layers.put(lyr.getName(), lyr); |
212 | |||
213 | // Collection layerCollection = layers.values();
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214 | // Iterator iter = layerCollection.iterator();
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215 | // while (iter.hasNext())
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216 | // {
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217 | // WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
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218 | // //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
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219 | // for (i=0;i<layer.getAllSrs().size();i++)
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220 | // {
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221 | //// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
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222 | //// {
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223 | //// this.srs.add(layer.getAllSrs().elementAt(i));
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224 | //// }
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225 | // }
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226 | // }
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227 | 3323 | ldiaz | } |
228 | else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
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229 | (parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
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230 | 3516 | jaume | |
231 | 3323 | ldiaz | { |
232 | parser.skipSubTree(); |
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233 | } |
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234 | break;
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235 | case KXmlParser.END_TAG:
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236 | if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
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237 | end = true;
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238 | break;
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239 | case KXmlParser.TEXT:
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240 | break;
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241 | } |
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242 | 4222 | jaume | if (!end)
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243 | currentTag = parser.next(); |
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244 | 3323 | ldiaz | } |
245 | 3341 | ldiaz | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
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246 | 3323 | ldiaz | } |
247 | |||
248 | /**
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249 | * <p>Parses the Request tag </p>
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250 | */
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251 | private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
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252 | { |
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253 | int currentTag;
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254 | boolean end = false; |
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255 | |||
256 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
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257 | currentTag = parser.next(); |
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258 | |||
259 | while (!end)
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260 | { |
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261 | switch(currentTag)
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262 | { |
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263 | case KXmlParser.START_TAG:
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264 | if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
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265 | { |
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266 | 4222 | jaume | serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
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267 | 3323 | ldiaz | } |
268 | else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
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269 | { |
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270 | 4222 | jaume | // put a null to this key?
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271 | // or leave it like it was with a CODE in a vector specifying this operation.
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272 | // WMSProtocolHandler.GETMAP_OPERATION
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273 | serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
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274 | parseGetMapTag(parser); |
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275 | 3323 | ldiaz | } |
276 | else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
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277 | { |
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278 | 4222 | jaume | //serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
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279 | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
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280 | parseGetFeatureInfoTag(parser); |
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281 | 3687 | ldiaz | } |
282 | else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
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283 | { |
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284 | 4222 | jaume | //serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
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285 | serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
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286 | 8765 | jjdelcerro | } |
287 | else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
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288 | { |
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289 | serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
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290 | parseGetLegendGraphicTag(parser); |
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291 | } |
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292 | 3323 | ldiaz | break;
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293 | case KXmlParser.END_TAG:
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294 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
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295 | end = true;
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296 | break;
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297 | case KXmlParser.TEXT:
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298 | break;
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299 | } |
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300 | 4222 | jaume | if(!end)
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301 | currentTag = parser.next(); |
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302 | 3323 | ldiaz | } |
303 | // TODO: does not get such a tag when arrives here!!!!!!
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304 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
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305 | } |
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306 | 4222 | jaume | |
307 | /**
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308 | * <p>Parses the GetMap tag </p>
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309 | */
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310 | private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
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311 | { |
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312 | int currentTag;
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313 | boolean end = false; |
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314 | |||
315 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
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316 | currentTag = parser.next(); |
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317 | |||
318 | while (!end)
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319 | { |
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320 | switch(currentTag)
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321 | { |
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322 | case KXmlParser.START_TAG:
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323 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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324 | { |
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325 | serviceInfo.formats.add(parser.nextText()); |
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326 | } |
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327 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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328 | { |
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329 | currentTag = parser.nextTag(); |
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330 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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331 | { |
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332 | currentTag = parser.nextTag(); |
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333 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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334 | { |
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335 | currentTag = parser.nextTag(); |
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336 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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337 | { |
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338 | String value = new String(); |
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339 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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340 | if (value != null){ |
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341 | serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
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342 | } |
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343 | } |
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344 | } |
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345 | } |
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346 | } |
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347 | break;
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348 | case KXmlParser.END_TAG:
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349 | if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
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350 | end = true;
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351 | break;
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352 | case KXmlParser.TEXT:
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353 | break;
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354 | } |
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355 | if(!end)
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356 | currentTag = parser.next(); |
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357 | } |
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358 | } |
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359 | |||
360 | /**
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361 | 8765 | jjdelcerro | * <p>Parses the GetFeatureInfoTag tag </p>
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362 | 4222 | jaume | */
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363 | private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
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364 | { |
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365 | int currentTag;
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366 | boolean end = false; |
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367 | |||
368 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
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369 | currentTag = parser.next(); |
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370 | |||
371 | while (!end)
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372 | { |
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373 | switch(currentTag)
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374 | { |
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375 | case KXmlParser.START_TAG:
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376 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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377 | { |
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378 | //TODO:
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379 | // add the supported formats by the GetFeatureInfo request
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380 | //serviceInfo.formats.add(parser.nextText());
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381 | } |
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382 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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383 | { |
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384 | currentTag = parser.nextTag(); |
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385 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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386 | { |
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387 | currentTag = parser.nextTag(); |
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388 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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389 | { |
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390 | currentTag = parser.nextTag(); |
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391 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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392 | { |
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393 | String value = new String(); |
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394 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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395 | if (value != null){ |
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396 | 4623 | ldiaz | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
397 | 4222 | jaume | } |
398 | } |
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399 | } |
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400 | } |
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401 | } |
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402 | break;
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403 | case KXmlParser.END_TAG:
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404 | if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
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405 | end = true;
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406 | break;
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407 | case KXmlParser.TEXT:
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408 | break;
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409 | } |
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410 | if(!end)
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411 | currentTag = parser.next(); |
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412 | } |
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413 | } |
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414 | 3516 | jaume | |
415 | 8765 | jjdelcerro | /**
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416 | * <p>Parses the GetFeatureInfoTag tag </p>
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417 | */
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418 | private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
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419 | { |
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420 | int currentTag;
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421 | boolean end = false; |
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422 | |||
423 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
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424 | currentTag = parser.next(); |
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425 | |||
426 | while (!end)
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427 | { |
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428 | switch(currentTag)
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429 | { |
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430 | case KXmlParser.START_TAG:
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431 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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432 | { |
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433 | //TODO:
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434 | // add the supported formats by the GetLegendGraphic request
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435 | //serviceInfo.formats.add(parser.nextText());
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436 | } |
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437 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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438 | { |
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439 | currentTag = parser.nextTag(); |
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440 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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441 | { |
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442 | currentTag = parser.nextTag(); |
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443 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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444 | { |
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445 | currentTag = parser.nextTag(); |
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446 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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447 | { |
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448 | String value = new String(); |
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449 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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450 | if (value != null){ |
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451 | serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
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452 | } |
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453 | } |
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454 | } |
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455 | } |
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456 | } |
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457 | break;
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458 | case KXmlParser.END_TAG:
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459 | if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
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460 | end = true;
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461 | break;
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462 | case KXmlParser.TEXT:
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463 | break;
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464 | } |
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465 | if(!end)
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466 | currentTag = parser.next(); |
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467 | } |
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468 | } |
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469 | |||
470 | |||
471 | 3592 | jaume | private WMSLayer1_1_1 getFakeRootLayer(){
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472 | if (fakeRootLayer == null){ |
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473 | fakeRootLayer = new WMSLayer1_1_1();
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474 | fakeRootLayer.setTitle(serviceInfo.title); |
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475 | fakeRootLayer.setQueryable(false);
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476 | fakeRootLayer.setName(null);
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477 | } |
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478 | return fakeRootLayer;
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479 | } |
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480 | 3516 | jaume | /* (non-Javadoc)
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481 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
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482 | */
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483 | protected String parseException(byte[] data) { |
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484 | ArrayList errors = new ArrayList(); |
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485 | KXmlParser kxmlParser = new KXmlParser();
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486 | try
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487 | { |
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488 | 4500 | jaume | kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
489 | 3516 | jaume | int tag;
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490 | 3824 | ldiaz | |
491 | boolean end = false; |
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492 | tag = kxmlParser.nextTag(); |
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493 | |||
494 | 8765 | jjdelcerro | //Comentar temporalmente para subsanar el hecho de que SimonCit me devuelve las capabilities en un GetLegendGraphic!!!
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495 | 3824 | ldiaz | kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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496 | |||
497 | while (!end)
|
||
498 | { |
||
499 | switch(tag)
|
||
500 | { |
||
501 | case KXmlParser.START_TAG:
|
||
502 | 3516 | jaume | if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
503 | String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
||
504 | errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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505 | String errorMessage = kxmlParser.nextText();
|
||
506 | errors.add(errorCode+errorMessage); |
||
507 | } |
||
508 | break;
|
||
509 | 3824 | ldiaz | case KXmlParser.END_TAG:
|
510 | if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
||
511 | end = true;
|
||
512 | break;
|
||
513 | 3516 | jaume | } |
514 | 3824 | ldiaz | if (!end)
|
515 | { |
||
516 | tag = kxmlParser.nextTag(); |
||
517 | } |
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518 | 3516 | jaume | } |
519 | 3824 | ldiaz | } |
520 | 3516 | jaume | catch(XmlPullParserException parser_ex){
|
521 | System.out.println(parser_ex.getMessage());
|
||
522 | parser_ex.printStackTrace(); |
||
523 | } |
||
524 | catch (IOException ioe) { |
||
525 | ioe.printStackTrace(); |
||
526 | } |
||
527 | String message = errors.size()>0? "" : null; |
||
528 | for (int i = 0; i < errors.size(); i++) { |
||
529 | message += (String) errors.get(i)+"\n"; |
||
530 | } |
||
531 | return message;
|
||
532 | } |
||
533 | 3323 | ldiaz | |
534 | } |