svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.remoteclient / src / main / java / org / gvsig / remoteclient / wms / WMSProtocolHandler.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.remoteclient.wms; |
25 | |||
26 | import java.io.ByteArrayInputStream; |
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27 | import java.io.File; |
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28 | import java.io.FileInputStream; |
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29 | import java.io.FileReader; |
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30 | import java.io.IOException; |
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31 | import java.io.InputStream; |
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32 | import java.net.URL; |
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33 | import java.net.URLConnection; |
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34 | import java.nio.ByteBuffer; |
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35 | import java.nio.channels.FileChannel; |
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36 | import java.util.ArrayList; |
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37 | import java.util.Iterator; |
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38 | import java.util.StringTokenizer; |
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39 | import java.util.TreeMap; |
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40 | |||
41 | import org.gvsig.compat.net.ICancellable; |
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42 | import org.gvsig.remoteclient.exceptions.ServerErrorException; |
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43 | import org.gvsig.remoteclient.exceptions.WMSException; |
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44 | import org.gvsig.remoteclient.ogc.OGCProtocolHandler; |
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45 | import org.gvsig.remoteclient.ogc.OGCServiceInformation; |
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46 | import org.gvsig.remoteclient.utils.CapabilitiesTags; |
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47 | import org.gvsig.remoteclient.utils.ExceptionTags; |
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48 | import org.gvsig.remoteclient.utils.Utilities; |
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49 | import org.gvsig.remoteclient.wms.request.WMSGetCapabilitiesRequest; |
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50 | import org.gvsig.remoteclient.wms.request.WMSGetFeatureInfoRequest; |
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51 | import org.gvsig.remoteclient.wms.request.WMSGetLegendGraphicRequest; |
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52 | import org.gvsig.remoteclient.wms.request.WMSGetMapRequest; |
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53 | import org.kxml2.io.KXmlParser; |
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54 | import org.xmlpull.v1.XmlPullParserException; |
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55 | |||
56 | /**
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57 | * <p> Abstract class that represents handlers to comunicate via WMS protocol.
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58 | * </p>
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59 | *
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60 | */
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61 | public abstract class WMSProtocolHandler extends OGCProtocolHandler { |
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62 | /**
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63 | * Encoding used to parse different xml documents.
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64 | */
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65 | protected String encoding = "UTF-8"; |
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66 | /**
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67 | * WMS metadata
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68 | */
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69 | protected WMSServiceInformation serviceInfo;
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70 | public TreeMap layers; |
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71 | public WMSLayer rootLayer;
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72 | |||
73 | /**
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74 | * returns the alfanumeric information of the layers at the specified point.
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75 | * the diference between the other getfeatureInfo method is that this will
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76 | * be implemented by each specific version because the XML from the server will be
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77 | * parsed and presented by a well known structure.
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78 | */
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79 | |||
80 | public String getName() { |
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81 | return name;
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82 | } |
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83 | |||
84 | /*
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85 | * (non-Javadoc)
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86 | * @see org.gvsig.remoteClient.ogc.OGCProtocolHandler#getServiceInformation()
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87 | */
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88 | public OGCServiceInformation getServiceInformation() {
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89 | return serviceInfo;
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90 | } |
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91 | |||
92 | /**
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93 | * <p>Builds a GetCapabilities request that is sent to the WMS
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94 | * the response will be parse to extract the data needed by the
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95 | * WMS client</p>
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96 | * @param override, if true the previous downloaded data will be overridden
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97 | */
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98 | public void getCapabilities(WMSStatus status, boolean override, ICancellable cancel) { |
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99 | URL request = null; |
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100 | try {
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101 | request = new URL(buildCapabilitiesRequest(status)); |
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102 | } catch(Exception e) { |
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103 | e.printStackTrace(); |
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104 | } |
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105 | try {
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106 | if (override)
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107 | Utilities.removeURL(request);
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108 | File f = Utilities.downloadFile(request,"wms_capabilities.xml", cancel); |
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109 | //WMSGetCapabilitiesRequest request = createGetCapabilitiesRequest(status);
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110 | //File f = request.sendRequest();
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111 | if (f == null) |
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112 | return;
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113 | clear(); |
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114 | parseCapabilities(f); |
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115 | } catch(Exception e) { |
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116 | e.printStackTrace(); |
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117 | } |
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118 | } |
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119 | |||
120 | private void clear() { |
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121 | layers.clear(); |
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122 | serviceInfo.clear(); |
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123 | } |
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124 | |||
125 | /**
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126 | * <p>It will send a GetFeatureInfo request to the WMS
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127 | * Parsing the response and redirecting the info to the WMS client</p>
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128 | * TODO: return a stored file instead a String.
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129 | */
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130 | public String getFeatureInfo(WMSStatus status, int x, int y, int featureCount, ICancellable cancel) |
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131 | { |
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132 | StringBuffer output = new StringBuffer(); |
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133 | String outputFormat = new String(); |
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134 | String ServiceException = "ServiceExceptionReport"; |
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135 | StringBuffer sb = new StringBuffer(); |
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136 | sb.append("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>");
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137 | try
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138 | { |
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139 | WMSGetFeatureInfoRequest request = createGetFeatureInfoRequest(status, x, y); |
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140 | URL url = request.getURL();
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141 | outputFormat = url.openConnection().getContentType(); |
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142 | File f = request.sendRequest(cancel);
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143 | if (f == null){ |
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144 | return ""; |
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145 | } |
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146 | |||
147 | FileReader fReader = new FileReader(f); |
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148 | char[] buffer = new char[1024*256]; |
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149 | for (int i = fReader.read(buffer); i>0; i = fReader.read(buffer)) |
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150 | { |
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151 | String str = new String(buffer,0,i); |
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152 | output.append(str); |
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153 | } |
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154 | if ( (outputFormat == null) || (outputFormat.indexOf("xml") != -1) |
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155 | ||output.toString().toLowerCase().startsWith("<?xml")
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156 | ||(outputFormat.indexOf("gml") != -1)) |
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157 | { |
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158 | int tag;
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159 | KXmlParser kxmlParser = null;
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160 | kxmlParser = new KXmlParser();
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161 | //kxmlParser.setInput(new StringReader(output.toString()));
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162 | kxmlParser.setInput(new FileReader(f)); |
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163 | |||
164 | tag = kxmlParser.nextTag(); |
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165 | if (kxmlParser.getName().compareTo(ServiceException)==0) |
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166 | { |
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167 | sb.append("<INFO>").append(parseException( output.toString().getBytes())).append("</INFO>"); |
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168 | return sb.toString();
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169 | } |
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170 | else if (kxmlParser.getName().compareToIgnoreCase("ERROR")==0) |
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171 | { |
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172 | return output.toString();
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173 | } |
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174 | else
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175 | { |
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176 | return output.toString();
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177 | } |
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178 | } |
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179 | else
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180 | { |
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181 | //Para que funcione con el GetFeatureInfo Viewer generico hay que devolver:
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182 | return output.toString();
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183 | } |
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184 | } |
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185 | catch(XmlPullParserException parserEx)
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186 | { |
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187 | if (output.toString().toLowerCase().indexOf("xml") != -1) |
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188 | { |
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189 | return output.toString().trim();
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190 | } |
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191 | else
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192 | { |
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193 | sb.append("<INFO>").append("Info format not supported").append("</INFO>"); |
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194 | return sb.toString();
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195 | } |
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196 | } |
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197 | catch(Exception e) |
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198 | { |
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199 | e.printStackTrace(); |
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200 | sb.append("<INFO>").append("Info format not supported").append("</INFO>"); |
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201 | return sb.toString();
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202 | |||
203 | } |
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204 | } |
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205 | /**
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206 | * <p>Builds a GetMap request that is sent to the WMS
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207 | * the response (image) will be redirect to the
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208 | * WMS client</p>
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209 | */
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210 | public byte[] _getMap(WMSStatus status) throws ServerErrorException, WMSException |
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211 | { |
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212 | try
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213 | { |
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214 | //TODO:
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215 | //pass this buildXXXRequest to the WMSProtocolHandlerXXX: The request can depend on the WMS version.
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216 | WMSGetMapRequest request = createGetMapRequest(status); |
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217 | URL url = request.getURL();
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218 | |||
219 | URLConnection conn = url.openConnection();
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220 | System.out.println(request.toString());
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221 | String type = conn.getContentType();
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222 | |||
223 | |||
224 | byte[] imageBytes = null; |
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225 | byte[] buffer = new byte[1024*256]; |
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226 | InputStream is = conn.getInputStream();
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227 | int readed = 0; |
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228 | |||
229 | for (int i = is.read(buffer); i>0; i = is.read(buffer)){ |
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230 | // Creates a new buffer to contain the previous readed bytes and the next bunch of bytes
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231 | byte[] buffered = new byte[readed+i]; |
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232 | for (int j = 0; j < buffered.length; j++) { |
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233 | if (j<readed){
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234 | // puts the previously downloaded bytes into the image buffer
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235 | buffered[j] = imageBytes[j]; |
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236 | } |
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237 | else {
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238 | // appends the recently downloaded bytes to the image buffer.
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239 | buffered[j] = buffer[j-readed]; |
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240 | } |
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241 | } |
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242 | imageBytes = (byte[]) buffered.clone(); |
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243 | readed += i; |
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244 | } |
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245 | |||
246 | if ((type !=null && !type.subSequence(0,5).equals("image")) |
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247 | ||(Utilities.isTextData(imageBytes)))
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248 | { |
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249 | WMSException wmsEx = null;
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250 | |||
251 | String exceptionMessage = parseException(imageBytes);
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252 | if (exceptionMessage==null) |
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253 | { |
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254 | String error = new String(imageBytes); |
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255 | int pos = error.indexOf("<?xml"); |
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256 | if (pos!= -1) |
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257 | { |
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258 | String xml = error.substring(pos,error.length());
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259 | exceptionMessage = parseException(xml.getBytes()); |
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260 | if (exceptionMessage == null) |
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261 | exceptionMessage = new String(imageBytes); |
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262 | } |
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263 | } |
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264 | wmsEx = new WMSException(exceptionMessage);
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265 | wmsEx.setWMSMessage(new String(imageBytes)); |
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266 | throw wmsEx;
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267 | } |
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268 | return imageBytes;
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269 | } |
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270 | catch(IOException e) |
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271 | { |
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272 | e.printStackTrace(); |
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273 | throw new ServerErrorException(); |
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274 | } |
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275 | } |
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276 | |||
277 | public File getLegendGraphic_old(WMSStatus status, String layerName, ICancellable cancel) throws ServerErrorException, WMSException |
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278 | { |
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279 | try
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280 | { |
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281 | WMSGetLegendGraphicRequest request = createGetLegendGraphicRequest(status, layerName); |
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282 | File f = request.sendRequest(cancel);
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283 | if (f== null) |
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284 | return null; |
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285 | if (Utilities.isTextFile(f)) { |
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286 | |||
287 | byte[] data = fileToBytes(f); |
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288 | |||
289 | WMSException wmsEx = null;
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290 | |||
291 | String exceptionMessage = parseException(data);
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292 | if (exceptionMessage==null) |
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293 | { |
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294 | String error = new String(data); |
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295 | int pos = error.indexOf("<?xml"); |
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296 | if (pos!= -1) |
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297 | { |
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298 | String xml = error.substring(pos,error.length());
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299 | exceptionMessage = parseException(xml.getBytes()); |
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300 | } |
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301 | if (exceptionMessage == null) |
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302 | exceptionMessage = new String(data); |
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303 | |||
304 | } |
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305 | wmsEx = new WMSException(exceptionMessage);
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306 | wmsEx.setWMSMessage(new String(data)); |
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307 | downloader.removeURL(request); |
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308 | throw wmsEx;
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309 | } |
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310 | return f;
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311 | } |
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312 | catch(IOException e) |
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313 | { |
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314 | e.printStackTrace(); |
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315 | throw new ServerErrorException(); |
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316 | } |
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317 | } |
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318 | |||
319 | public File getLegendGraphic(WMSStatus status, String layerName, ICancellable cancel) |
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320 | throws ServerErrorException, WMSException {
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321 | URL request = null; |
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322 | try {
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323 | request = new URL(buildGetLegendGraphicRequest(status, layerName)); |
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324 | System.out.println(request);
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325 | File f = Utilities.downloadFile(request, "wmsGetLegendGraphic", cancel); |
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326 | if (f== null) |
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327 | return null; |
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328 | if (Utilities.isTextFile(f)) { |
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329 | FileInputStream fis = new FileInputStream(f); |
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330 | FileChannel fc = fis.getChannel();
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331 | byte[] data = new byte[(int)fc.size()]; |
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332 | ByteBuffer bb = ByteBuffer.wrap(data); |
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333 | fc.read(bb); |
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334 | |||
335 | WMSException wmsEx = null;
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336 | |||
337 | String exceptionMessage = parseException(data);
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338 | if (exceptionMessage == null) { |
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339 | String error = new String(data); |
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340 | int pos = error.indexOf("<?xml"); |
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341 | if (pos!= -1) { |
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342 | String xml = error.substring(pos,error.length());
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343 | exceptionMessage = parseException(xml.getBytes()); |
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344 | } |
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345 | if (exceptionMessage == null) |
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346 | exceptionMessage = new String(data); |
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347 | |||
348 | } |
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349 | wmsEx = new WMSException(exceptionMessage);
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350 | wmsEx.setWMSMessage(new String(data)); |
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351 | Utilities.removeURL(request);
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352 | throw wmsEx;
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353 | } |
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354 | return f;
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355 | } catch(IOException e) { |
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356 | e.printStackTrace(); |
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357 | throw new ServerErrorException(); |
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358 | } |
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359 | } |
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360 | |||
361 | /**
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362 | * @return string that represents the url for getting the wms legend
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363 | * If the layer has the object layer-->style-->legendurl that url will be returned
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364 | * otherwise builds the getLegendGraphic according to the OGC WMS Specifications
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365 | *
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366 | */
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367 | private String buildGetLegendGraphicRequest(WMSStatus status, String layerName) { |
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368 | //TODO: deal with more than one layer
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369 | WMSLayer lyr = (WMSLayer) this.layers.get(layerName);
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370 | WMSStyle sty =null;
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371 | if (lyr != null){ |
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372 | Iterator it = lyr.getStyles().iterator();
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373 | while (it.hasNext()){
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374 | sty = (WMSStyle) it.next(); |
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375 | if (sty.getName().equals(status.getStyles().get(0).toString())){ |
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376 | return sty.getLegendURLOnlineResourceHRef();
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377 | } |
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378 | } |
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379 | } |
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380 | //TODO: pass by parameter the legend output format?
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381 | StringBuffer req = new StringBuffer(); |
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382 | String symbol = null; |
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383 | String onlineResource = null; |
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384 | |||
385 | if (status.getOnlineResource() == null) |
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386 | onlineResource = getHost(); |
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387 | else
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388 | onlineResource = status.getOnlineResource(); |
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389 | symbol = getSymbol(onlineResource); |
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390 | |||
391 | req.append(onlineResource + symbol + "REQUEST=GetLegendGraphic&SERVICE=WMS&VERSION=").append(getVersion());
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392 | req.append("&LAYER=" + layerName).append("&TRANSPARENT=TRUE").append("&FORMAT=image/png"); |
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393 | String aux = req.toString().replaceAll(" ", "%20"); |
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394 | System.out.println("GetLegendGraphic url:" + aux); |
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395 | return aux;
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396 | } |
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397 | |||
398 | public URL getMapURL(WMSStatus status, ICancellable cancel) throws ServerErrorException, WMSException { |
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399 | try {
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400 | WMSGetMapRequest request = createGetMapRequest(status); |
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401 | return request.getURL();
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402 | } catch(IOException e) { |
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403 | e.printStackTrace(); |
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404 | throw new ServerErrorException(); |
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405 | } |
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406 | } |
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407 | |||
408 | /**
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409 | * Returns the exception message if the file is a XML instead of a image.
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410 | * @param file3
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411 | * @return
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412 | * @throws IOException
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413 | */
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414 | public String getExceptionMessage(File f) throws IOException { |
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415 | if (f == null) |
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416 | return null; |
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417 | |||
418 | if (Utilities.isTextFile(f)) { |
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419 | byte[] data = fileToBytes(f); |
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420 | |||
421 | String exceptionMessage = parseException(data);
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422 | if (exceptionMessage == null) { |
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423 | String error = new String(data); |
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424 | int pos = error.indexOf("<?xml"); |
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425 | if (pos!= -1) { |
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426 | String xml = error.substring(pos,error.length());
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427 | exceptionMessage = parseException(xml.getBytes()); |
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428 | } |
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429 | if (exceptionMessage == null) |
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430 | exceptionMessage = new String(data); |
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431 | } |
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432 | return exceptionMessage;
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433 | } |
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434 | return null; |
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435 | } |
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436 | |||
437 | public File getMap(WMSStatus status, ICancellable cancel) throws ServerErrorException, WMSException { |
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438 | try {
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439 | WMSGetMapRequest request = createGetMapRequest(status); |
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440 | File f = request.sendRequest(cancel);
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441 | |||
442 | if (f== null) |
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443 | return null; |
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444 | if (Utilities.isTextFile(f)) { |
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445 | byte[] data = fileToBytes(f); |
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446 | |||
447 | WMSException wmsEx = null;
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448 | |||
449 | String exceptionMessage = parseException(data);
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450 | if (exceptionMessage==null) { |
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451 | String error = new String(data); |
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452 | int pos = error.indexOf("<?xml"); |
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453 | if (pos!= -1) { |
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454 | String xml = error.substring(pos,error.length());
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455 | exceptionMessage = parseException(xml.getBytes()); |
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456 | // if (exceptionMessage == null)
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457 | // exceptionMessage = new String(data);
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458 | } |
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459 | if (exceptionMessage == null) |
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460 | exceptionMessage = new String(data); |
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461 | |||
462 | } |
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463 | wmsEx = new WMSException(exceptionMessage);
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464 | wmsEx.setWMSMessage(new String(data)); |
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465 | |||
466 | // Since it is an error file, It must be deleted from the cache
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467 | downloader.removeURL(request); |
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468 | throw wmsEx;
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469 | } |
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470 | return f;
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471 | } catch(IOException e) { |
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472 | throw new ServerErrorException(e.getMessage(), e); |
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473 | } |
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474 | } |
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475 | |||
476 | |||
477 | /* (non-Javadoc)
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478 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
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479 | */
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480 | protected String parseException(byte[] data) { |
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481 | ArrayList errors = new ArrayList(); |
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482 | KXmlParser kxmlParser = new KXmlParser();
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483 | try
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484 | { |
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485 | kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
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486 | kxmlParser.nextTag(); |
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487 | int tag;
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488 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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489 | { |
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490 | kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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491 | tag = kxmlParser.nextTag(); |
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492 | while(tag != KXmlParser.END_DOCUMENT)
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493 | { |
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494 | switch(tag)
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495 | { |
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496 | case KXmlParser.START_TAG:
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497 | if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
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498 | String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
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499 | errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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500 | String errorMessage = kxmlParser.nextText();
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501 | errors.add(errorCode+errorMessage); |
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502 | } |
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503 | break;
|
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504 | case KXmlParser.END_TAG:
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||
505 | break;
|
||
506 | |||
507 | } |
||
508 | tag = kxmlParser.nextTag(); |
||
509 | } |
||
510 | //kxmlParser.require(KXmlParser.END_DOCUMENT, null, null);
|
||
511 | } |
||
512 | } |
||
513 | catch(XmlPullParserException parser_ex){
|
||
514 | parser_ex.printStackTrace(); |
||
515 | } |
||
516 | catch (IOException ioe) { |
||
517 | ioe.printStackTrace(); |
||
518 | } |
||
519 | String message = errors.size()>0? "" : null; |
||
520 | for (int i = 0; i < errors.size(); i++) { |
||
521 | message += (String) errors.get(i)+"\n"; |
||
522 | } |
||
523 | return message;
|
||
524 | } |
||
525 | /**
|
||
526 | * Builds the GetCapabilitiesRequest according to the OGC WMS Specifications
|
||
527 | * without a VERSION, to get the highest version than a WMS supports.
|
||
528 | */
|
||
529 | public static String buildCapabilitiesSuitableVersionRequest(String _host, String _version) |
||
530 | { |
||
531 | int index = _host.indexOf('?'); |
||
532 | |||
533 | if (index > -1) { |
||
534 | String host = _host.substring(0, index + 1); |
||
535 | String query = _host.substring(index + 1, _host.length()); |
||
536 | |||
537 | StringTokenizer tokens = new StringTokenizer(query, "&"); |
||
538 | String newQuery = "", token; |
||
539 | |||
540 | // If there is a field or a value with spaces, (and then it's on different tokens) -> unify them
|
||
541 | while (tokens.hasMoreTokens()) {
|
||
542 | token = tokens.nextToken().trim(); |
||
543 | |||
544 | if (token.toUpperCase().compareTo("REQUEST=GETCAPABILITIES") == 0) |
||
545 | continue;
|
||
546 | |||
547 | if (token.toUpperCase().compareTo("SERVICE=WMS") == 0) |
||
548 | continue;
|
||
549 | |||
550 | if ((_version != null) && (_version.length() > 0)) { |
||
551 | if (token.toUpperCase().compareTo("VERSION=" + _version) == 0) |
||
552 | continue;
|
||
553 | } |
||
554 | |||
555 | if (token.toUpperCase().compareTo("EXCEPTIONS=XML") == 0) |
||
556 | continue;
|
||
557 | |||
558 | newQuery += token + "&";
|
||
559 | } |
||
560 | |||
561 | _host = host + newQuery; |
||
562 | } |
||
563 | else {
|
||
564 | _host += "?";
|
||
565 | } |
||
566 | |||
567 | if ((_version != null) && (_version.compareTo("") != 0)) |
||
568 | _host += "REQUEST=GetCapabilities&SERVICE=WMS&VERSION=" + _version;
|
||
569 | else
|
||
570 | _host += "REQUEST=GetCapabilities&SERVICE=WMS";
|
||
571 | |||
572 | return _host;
|
||
573 | } |
||
574 | |||
575 | /**
|
||
576 | * Builds the GetCapabilitiesRequest according to the OGC WMS Specifications
|
||
577 | * @param WMSStatus
|
||
578 | */
|
||
579 | private String buildCapabilitiesRequest(WMSStatus status) |
||
580 | { |
||
581 | StringBuffer req = new StringBuffer(); |
||
582 | String symbol = null; |
||
583 | |||
584 | String onlineResource;
|
||
585 | if (status == null || status.getOnlineResource() == null) |
||
586 | onlineResource = getHost(); |
||
587 | else
|
||
588 | onlineResource = status.getOnlineResource(); |
||
589 | symbol = getSymbol(onlineResource); |
||
590 | |||
591 | req.append(onlineResource).append(symbol).append("REQUEST=GetCapabilities&SERVICE=WMS&");
|
||
592 | req.append("VERSION=").append(getVersion());
|
||
593 | return req.toString();
|
||
594 | } |
||
595 | |||
596 | public void close() { |
||
597 | // your code here
|
||
598 | } |
||
599 | |||
600 | /**
|
||
601 | * @param status
|
||
602 | * The WMS status
|
||
603 | * @param protocolHandler
|
||
604 | * The handler to parse the requests
|
||
605 | * @return an object to send the GetMap requests
|
||
606 | */
|
||
607 | protected abstract WMSGetMapRequest createGetMapRequest(WMSStatus status); |
||
608 | |||
609 | protected abstract WMSGetFeatureInfoRequest createGetFeatureInfoRequest(WMSStatus status, int x, int y); |
||
610 | |||
611 | protected abstract WMSGetLegendGraphicRequest createGetLegendGraphicRequest(WMSStatus status, String layerName); |
||
612 | |||
613 | protected abstract WMSGetCapabilitiesRequest createGetCapabilitiesRequest(WMSStatus status); |
||
614 | |||
615 | /**
|
||
616 | * <p>Parses the Request tag </p>
|
||
617 | */
|
||
618 | protected void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
||
619 | { |
||
620 | int currentTag;
|
||
621 | boolean end = false; |
||
622 | |||
623 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
||
624 | currentTag = parser.next(); |
||
625 | |||
626 | while (!end)
|
||
627 | { |
||
628 | switch(currentTag)
|
||
629 | { |
||
630 | case KXmlParser.START_TAG:
|
||
631 | if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
||
632 | { |
||
633 | parserDcpType(parser, CapabilitiesTags.GETCAPABILITIES); |
||
634 | } |
||
635 | else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
||
636 | { |
||
637 | parseGetMapTag(parser); |
||
638 | } |
||
639 | else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
||
640 | { |
||
641 | parseGetFeatureInfoTag(parser); |
||
642 | } |
||
643 | else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
||
644 | { |
||
645 | parserDcpType(parser, CapabilitiesTags.DESCRIBELAYER); |
||
646 | } |
||
647 | else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
||
648 | { |
||
649 | parseGetLegendGraphicTag(parser); |
||
650 | } |
||
651 | break;
|
||
652 | case KXmlParser.END_TAG:
|
||
653 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
||
654 | end = true;
|
||
655 | break;
|
||
656 | case KXmlParser.TEXT:
|
||
657 | break;
|
||
658 | } |
||
659 | if(!end)
|
||
660 | currentTag = parser.next(); |
||
661 | } |
||
662 | // TODO: does not get such a tag when arrives here!!!!!!
|
||
663 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
||
664 | } |
||
665 | /**
|
||
666 | * <p>Parses the GetMap tag </p>
|
||
667 | */
|
||
668 | protected void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
||
669 | { |
||
670 | int currentTag;
|
||
671 | boolean end = false; |
||
672 | |||
673 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
||
674 | currentTag = parser.next(); |
||
675 | |||
676 | while (!end)
|
||
677 | { |
||
678 | switch(currentTag)
|
||
679 | { |
||
680 | case KXmlParser.START_TAG:
|
||
681 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
||
682 | { |
||
683 | serviceInfo.formats.add(parser.nextText()); |
||
684 | } |
||
685 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
||
686 | { |
||
687 | parserDcpType(parser, CapabilitiesTags.GETMAP); |
||
688 | } |
||
689 | break;
|
||
690 | case KXmlParser.END_TAG:
|
||
691 | if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
||
692 | end = true;
|
||
693 | break;
|
||
694 | case KXmlParser.TEXT:
|
||
695 | break;
|
||
696 | } |
||
697 | if(!end)
|
||
698 | currentTag = parser.next(); |
||
699 | } |
||
700 | } |
||
701 | |||
702 | /**
|
||
703 | * <p>Parses the GetFeatureInfo tag </p>
|
||
704 | */
|
||
705 | protected void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
||
706 | { |
||
707 | int currentTag;
|
||
708 | boolean end = false; |
||
709 | |||
710 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
||
711 | currentTag = parser.next(); |
||
712 | |||
713 | while (!end)
|
||
714 | { |
||
715 | switch(currentTag)
|
||
716 | { |
||
717 | case KXmlParser.START_TAG:
|
||
718 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
||
719 | { |
||
720 | serviceInfo.infoformats.add(parser.nextText()); |
||
721 | } |
||
722 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
||
723 | { |
||
724 | parserDcpType(parser, CapabilitiesTags.GETFEATUREINFO); |
||
725 | } |
||
726 | break;
|
||
727 | case KXmlParser.END_TAG:
|
||
728 | if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
||
729 | end = true;
|
||
730 | break;
|
||
731 | case KXmlParser.TEXT:
|
||
732 | break;
|
||
733 | } |
||
734 | if(!end)
|
||
735 | currentTag = parser.next(); |
||
736 | } |
||
737 | } |
||
738 | |||
739 | /**
|
||
740 | * <p>Parses the GetLegendGraphic tag </p>
|
||
741 | */
|
||
742 | protected void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
||
743 | { |
||
744 | int currentTag;
|
||
745 | boolean end = false; |
||
746 | |||
747 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
|
||
748 | currentTag = parser.next(); |
||
749 | |||
750 | while (!end)
|
||
751 | { |
||
752 | switch(currentTag)
|
||
753 | { |
||
754 | case KXmlParser.START_TAG:
|
||
755 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
||
756 | { |
||
757 | //TODO:
|
||
758 | // add the supported formats by the GetLegendGraphic request
|
||
759 | //serviceInfo.formats.add(parser.nextText());
|
||
760 | } |
||
761 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
||
762 | { |
||
763 | parserDcpType(parser, CapabilitiesTags.GETLEGENDGRAPHIC); |
||
764 | } |
||
765 | break;
|
||
766 | case KXmlParser.END_TAG:
|
||
767 | if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
||
768 | end = true;
|
||
769 | break;
|
||
770 | case KXmlParser.TEXT:
|
||
771 | break;
|
||
772 | } |
||
773 | if(!end)
|
||
774 | currentTag = parser.next(); |
||
775 | } |
||
776 | } |
||
777 | } |