svn-gvsig-desktop / tags / v1_0_RELEASE / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_3_0 / WMSProtocolHandler1_3_0.java @ 9167
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1 | 3660 | ldiaz | |
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2 | package org.gvsig.remoteClient.wms.wms_1_3_0; |
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3 | |||
4 | 4500 | jaume | import java.io.BufferedReader; |
5 | 3660 | ldiaz | import java.io.ByteArrayInputStream; |
6 | import java.io.File; |
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7 | 4500 | jaume | import java.io.FileInputStream; |
8 | 3660 | ldiaz | import java.io.FileNotFoundException; |
9 | import java.io.FileReader; |
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10 | import java.io.IOException; |
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11 | import java.util.ArrayList; |
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12 | import java.util.TreeMap; |
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13 | 4926 | jaume | |
14 | 3660 | ldiaz | import org.gvsig.remoteClient.utils.CapabilitiesTags; |
15 | import org.gvsig.remoteClient.utils.ExceptionTags; |
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16 | import org.kxml2.io.KXmlParser; |
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17 | import org.xmlpull.v1.XmlPullParserException; |
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18 | |||
19 | /**
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20 | * <p>
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21 | * Describes the handler to comunicate to a WMS 1.3.0
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22 | * </p>
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23 | */
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24 | public class WMSProtocolHandler1_3_0 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
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25 | private WMSLayer1_3_0 fakeRootLayer;
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26 | |||
27 | public WMSProtocolHandler1_3_0()
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28 | { |
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29 | this.version = "1.3.0"; |
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30 | this.name = "WMS1.3.0"; |
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31 | this.serviceInfo = new ServiceInformation(); |
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32 | 4222 | jaume | this.layers = new TreeMap(); |
33 | 3660 | 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 | 5539 | jaume | { |
44 | rootLayer = null;
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45 | 3660 | 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 | 3660 | ldiaz | } |
60 | catch(FileNotFoundException ex) { |
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61 | ex.printStackTrace(); |
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62 | 4500 | jaume | } catch (IOException e) { |
63 | e.printStackTrace(); |
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64 | } |
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65 | 3660 | ldiaz | |
66 | int tag;
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67 | KXmlParser kxmlParser = null;
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68 | kxmlParser = new KXmlParser();
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69 | try
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70 | { |
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71 | 4500 | jaume | kxmlParser.setInput(new FileInputStream(f), encoding); |
72 | 3660 | ldiaz | kxmlParser.nextTag(); |
73 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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74 | { |
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75 | 3687 | ldiaz | kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_3_0);
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76 | 3660 | ldiaz | tag = kxmlParser.nextTag(); |
77 | while(tag != KXmlParser.END_DOCUMENT)
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78 | { |
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79 | switch(tag)
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80 | 4222 | jaume | { |
81 | 3660 | 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 | 3660 | ldiaz | break;
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96 | } |
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97 | tag = kxmlParser.next(); |
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98 | 3743 | ldiaz | }//while !END_DOCUMENT
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99 | 3660 | ldiaz | } |
100 | } |
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101 | 4222 | jaume | catch(XmlPullParserException parser_ex){
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102 | 3660 | ldiaz | parser_ex.printStackTrace(); |
103 | } |
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104 | catch (IOException ioe) { |
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105 | ioe.printStackTrace(); |
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106 | 4222 | jaume | } finally {
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107 | 3660 | ldiaz | |
108 | } |
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109 | // In the parsing process the layer has been filled
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110 | } |
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111 | |||
112 | /**
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113 | * <p>Parses the Service Information </p>
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114 | */
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115 | private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
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116 | { |
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117 | int currentTag;
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118 | boolean end = false; |
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119 | |||
120 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
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121 | currentTag = parser.next(); |
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122 | |||
123 | while (!end)
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124 | { |
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125 | switch(currentTag)
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126 | { |
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127 | case KXmlParser.START_TAG:
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128 | if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
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129 | { |
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130 | serviceInfo.name = parser.nextText(); |
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131 | } |
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132 | else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
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133 | { |
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134 | serviceInfo.title = parser.nextText(); |
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135 | } |
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136 | else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
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137 | { |
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138 | serviceInfo.abstr = parser.nextText(); |
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139 | } |
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140 | 4222 | jaume | else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
141 | { |
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142 | String value = new String(); |
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143 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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144 | if (value != null){ |
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145 | serviceInfo.online_resource = value; |
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146 | } |
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147 | } |
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148 | 3660 | ldiaz | else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
149 | (parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
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150 | { |
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151 | parser.skipSubTree(); |
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152 | } |
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153 | break;
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154 | case KXmlParser.END_TAG:
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155 | if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
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156 | end = true;
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157 | break;
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158 | case KXmlParser.TEXT:
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159 | break;
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160 | } |
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161 | if (!end)
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162 | currentTag = parser.next(); |
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163 | } |
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164 | parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
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165 | } |
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166 | 4222 | jaume | |
167 | 3660 | ldiaz | /**
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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 | |||
175 | 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 serviceInformation the supported exception formats.
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191 | 3660 | ldiaz | } |
192 | else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
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193 | { |
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194 | WMSLayer1_3_0 lyr = new WMSLayer1_3_0();
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195 | if (rootLayer == null) |
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196 | rootLayer = lyr; |
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197 | else {
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198 | // Handles when there is no general root layer, will use
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199 | // a fake non-queryable one.
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200 | if (!rootLayer.equals(getFakeRootLayer())){
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201 | WMSLayer1_3_0 aux = (WMSLayer1_3_0) rootLayer; |
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202 | rootLayer = getFakeRootLayer(); |
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203 | rootLayer.getChildren().add(aux); |
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204 | } |
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205 | rootLayer.getChildren().add(lyr); |
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206 | } |
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207 | lyr.parse(parser, layers); |
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208 | |||
209 | if (lyr.getName()!=null) |
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210 | 4222 | jaume | layers.put(lyr.getName(), lyr); |
211 | 3660 | ldiaz | } |
212 | else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
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213 | 4222 | jaume | (parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
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214 | 3660 | ldiaz | { |
215 | parser.skipSubTree(); |
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216 | } |
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217 | break;
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218 | case KXmlParser.END_TAG:
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219 | if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
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220 | end = true;
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221 | break;
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222 | case KXmlParser.TEXT:
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223 | break;
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224 | } |
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225 | 4222 | jaume | if (!end)
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226 | currentTag = parser.next(); |
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227 | 3660 | ldiaz | } |
228 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
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229 | } |
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230 | |||
231 | /**
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232 | * <p>Parses the Request tag </p>
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233 | */
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234 | private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
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235 | { |
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236 | int currentTag;
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237 | boolean end = false; |
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238 | |||
239 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
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240 | currentTag = parser.next(); |
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241 | |||
242 | while (!end)
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243 | { |
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244 | switch(currentTag)
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245 | { |
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246 | case KXmlParser.START_TAG:
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247 | if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
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248 | { |
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249 | 4222 | jaume | //we could parse here the info of Capabilities request, but we actually never use it.
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250 | 3660 | ldiaz | } |
251 | else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
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252 | 4222 | jaume | { |
253 | serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
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254 | parseGetMapTag(parser); |
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255 | 3660 | ldiaz | } |
256 | else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
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257 | { |
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258 | 4222 | jaume | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
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259 | parseGetFeatureInfoTag(parser); |
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260 | 8765 | jjdelcerro | } |
261 | else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
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262 | { |
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263 | serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
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264 | } |
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265 | else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
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266 | { |
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267 | serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
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268 | parseGetLegendGraphicTag(parser); |
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269 | } |
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270 | 3660 | ldiaz | break;
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271 | case KXmlParser.END_TAG:
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272 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
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273 | end = true;
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274 | break;
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275 | case KXmlParser.TEXT:
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276 | break;
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277 | } |
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278 | 4222 | jaume | if (!end)
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279 | currentTag = parser.next(); |
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280 | 3660 | ldiaz | } |
281 | // TODO: does not get such a tag when arrives here!!!!!!
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282 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
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283 | } |
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284 | 4222 | jaume | |
285 | /**
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286 | * <p>Parses the GetMap tag </p>
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287 | */
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288 | private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
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289 | { |
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290 | int currentTag;
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291 | boolean end = false; |
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292 | |||
293 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
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294 | currentTag = parser.next(); |
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295 | |||
296 | while (!end)
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297 | { |
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298 | switch(currentTag)
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299 | { |
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300 | case KXmlParser.START_TAG:
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301 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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302 | { |
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303 | serviceInfo.formats.add(parser.nextText()); |
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304 | } |
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305 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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306 | { |
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307 | currentTag = parser.nextTag(); |
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308 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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309 | { |
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310 | currentTag = parser.nextTag(); |
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311 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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312 | { |
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313 | currentTag = parser.nextTag(); |
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314 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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315 | { |
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316 | String value = new String(); |
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317 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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318 | if (value != null){ |
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319 | serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
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320 | } |
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321 | } |
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322 | } |
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323 | } |
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324 | } |
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325 | break;
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326 | case KXmlParser.END_TAG:
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327 | if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
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328 | end = true;
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329 | break;
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330 | case KXmlParser.TEXT:
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331 | break;
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332 | } |
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333 | if(!end)
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334 | currentTag = parser.next(); |
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335 | } |
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336 | } |
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337 | |||
338 | /**
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339 | 8765 | jjdelcerro | * <p>Parses the GetFeatureInfo tag </p>
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340 | 4222 | jaume | */
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341 | private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
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342 | { |
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343 | int currentTag;
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344 | boolean end = false; |
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345 | |||
346 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
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347 | currentTag = parser.next(); |
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348 | |||
349 | while (!end)
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350 | { |
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351 | switch(currentTag)
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352 | { |
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353 | case KXmlParser.START_TAG:
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354 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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355 | { |
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356 | //TODO:
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357 | // add the supported formats by the GetFeatureInfo request
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358 | //serviceInfo.formats.add(parser.nextText());
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359 | } |
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360 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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361 | { |
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362 | currentTag = parser.nextTag(); |
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363 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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364 | { |
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365 | currentTag = parser.nextTag(); |
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366 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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367 | { |
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368 | currentTag = parser.nextTag(); |
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369 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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370 | { |
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371 | String value = new String(); |
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372 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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373 | if (value != null){ |
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374 | 4623 | ldiaz | //serviceInfo.online_resource = value;
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375 | serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
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376 | 4222 | jaume | } |
377 | } |
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378 | } |
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379 | } |
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380 | } |
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381 | break;
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382 | case KXmlParser.END_TAG:
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383 | if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
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384 | end = true;
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385 | break;
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386 | case KXmlParser.TEXT:
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387 | break;
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388 | } |
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389 | if(!end)
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390 | currentTag = parser.next(); |
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391 | } |
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392 | } |
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393 | 3660 | ldiaz | |
394 | 8765 | jjdelcerro | /**
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395 | * <p>Parses the GetLegendGraphic tag </p>
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396 | */
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397 | private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
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398 | { |
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399 | int currentTag;
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400 | boolean end = false; |
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401 | |||
402 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
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403 | currentTag = parser.next(); |
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404 | |||
405 | while (!end)
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406 | { |
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407 | switch(currentTag)
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408 | { |
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409 | case KXmlParser.START_TAG:
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410 | if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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411 | { |
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412 | //TODO:
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413 | // add the supported formats by the GetLegendGraphic request
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414 | //serviceInfo.formats.add(parser.nextText());
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415 | } |
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416 | else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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417 | { |
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418 | currentTag = parser.nextTag(); |
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419 | if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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420 | { |
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421 | currentTag = parser.nextTag(); |
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422 | if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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423 | { |
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424 | currentTag = parser.nextTag(); |
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425 | if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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426 | { |
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427 | String value = new String(); |
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428 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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429 | if (value != null){ |
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430 | serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
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431 | } |
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432 | } |
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433 | } |
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434 | } |
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435 | } |
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436 | break;
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437 | case KXmlParser.END_TAG:
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438 | if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
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439 | end = true;
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440 | break;
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441 | case KXmlParser.TEXT:
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442 | break;
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443 | } |
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444 | if(!end)
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445 | currentTag = parser.next(); |
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446 | } |
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447 | } |
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448 | |||
449 | 3660 | ldiaz | private WMSLayer1_3_0 getFakeRootLayer(){
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450 | if (fakeRootLayer == null){ |
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451 | fakeRootLayer = new WMSLayer1_3_0();
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452 | fakeRootLayer.setTitle(serviceInfo.title); |
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453 | fakeRootLayer.setQueryable(false);
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454 | fakeRootLayer.setName(null);
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455 | } |
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456 | return fakeRootLayer;
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457 | } |
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458 | /* (non-Javadoc)
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459 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
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460 | */
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461 | protected String parseException(byte[] data) { |
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462 | ArrayList errors = new ArrayList(); |
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463 | KXmlParser kxmlParser = new KXmlParser();
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464 | try
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465 | { |
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466 | 4500 | jaume | kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
467 | 3660 | ldiaz | kxmlParser.nextTag(); |
468 | int tag;
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469 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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470 | { |
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471 | kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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472 | tag = kxmlParser.nextTag(); |
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473 | while(tag != KXmlParser.END_DOCUMENT)
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474 | { |
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475 | switch(tag)
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476 | { |
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477 | case KXmlParser.START_TAG:
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478 | if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
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479 | String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
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480 | errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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481 | String errorMessage = kxmlParser.nextText();
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482 | errors.add(errorCode+errorMessage); |
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483 | } |
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484 | break;
|
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485 | case KXmlParser.END_TAG:
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486 | break;
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487 | |||
488 | } |
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489 | tag = kxmlParser.nextTag(); |
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490 | } |
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491 | //kxmlParser.require(KXmlParser.END_DOCUMENT, null, null);
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492 | } |
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493 | } |
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494 | catch(XmlPullParserException parser_ex){
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495 | System.out.println(parser_ex.getMessage());
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496 | parser_ex.printStackTrace(); |
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497 | } |
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498 | catch (IOException ioe) { |
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499 | ioe.printStackTrace(); |
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500 | } |
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501 | String message = errors.size()>0? "" : null; |
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502 | for (int i = 0; i < errors.size(); i++) { |
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503 | message += (String) errors.get(i)+"\n"; |
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504 | } |
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505 | return message;
|
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506 | } |
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507 | |||
508 | } |