svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.remoteclient / src / main / java / org / gvsig / remoteclient / wms / wms_1_1_0 / WMSProtocolHandler1_1_0.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 | |
25 | package org.gvsig.remoteclient.wms.wms_1_1_0; |
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26 | |||
27 | import java.io.ByteArrayInputStream; |
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28 | import java.io.File; |
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29 | import java.io.IOException; |
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30 | import java.util.ArrayList; |
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31 | import java.util.TreeMap; |
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32 | |||
33 | import org.kxml2.io.KXmlParser; |
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34 | import org.xmlpull.v1.XmlPullParserException; |
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35 | |||
36 | import org.gvsig.remoteclient.utils.CapabilitiesTags; |
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37 | import org.gvsig.remoteclient.utils.EncodingXMLParser; |
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38 | import org.gvsig.remoteclient.utils.ExceptionTags; |
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39 | import org.gvsig.remoteclient.wms.WMSServiceInformation; |
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40 | import org.gvsig.remoteclient.wms.WMSStatus; |
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41 | import org.gvsig.remoteclient.wms.request.WMSGetCapabilitiesRequest; |
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42 | import org.gvsig.remoteclient.wms.request.WMSGetFeatureInfoRequest; |
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43 | import org.gvsig.remoteclient.wms.request.WMSGetLegendGraphicRequest; |
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44 | import org.gvsig.remoteclient.wms.request.WMSGetMapRequest; |
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45 | import org.gvsig.remoteclient.wms.wms_1_1_0.request.WMSGetCapabilitiesRequest1_1_0; |
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46 | import org.gvsig.remoteclient.wms.wms_1_1_0.request.WMSGetFeatureInfoRequest1_1_0; |
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47 | import org.gvsig.remoteclient.wms.wms_1_1_0.request.WMSGetLegendGraphicRequest1_1_0; |
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48 | import org.gvsig.remoteclient.wms.wms_1_1_0.request.WMSGetMapRequest1_1_0; |
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49 | |||
50 | /**
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51 | * <p>
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52 | * Describes the handler to comunicate to a WMS 1.1.0
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53 | * </p>
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54 | */
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55 | public class WMSProtocolHandler1_1_0 extends org.gvsig.remoteclient.wms.WMSProtocolHandler |
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56 | { |
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57 | private WMSLayer1_1_0 fakeRootLayer;
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58 | |||
59 | public WMSProtocolHandler1_1_0()
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60 | { |
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61 | this.version = "1.1.0"; |
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62 | this.name = "WMS1.1.0"; |
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63 | this.serviceInfo = new WMSServiceInformation(); |
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64 | this.layers = new TreeMap(); |
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65 | } |
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66 | |||
67 | //------------------------------------------------------------------------------
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68 | // Parsing methods....
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69 | //------------------------------------------------------------------------------
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70 | |||
71 | |||
72 | public boolean parseCapabilities(File f) |
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73 | { |
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74 | rootLayer = null;
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75 | int tag;
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76 | EncodingXMLParser kxmlParser = null;
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77 | kxmlParser = new EncodingXMLParser();
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78 | try
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79 | { |
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80 | kxmlParser.setInput(f); |
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81 | kxmlParser.nextTag(); |
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82 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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83 | { |
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84 | kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
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85 | tag = kxmlParser.nextTag(); |
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86 | while(tag != KXmlParser.END_DOCUMENT)
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87 | { |
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88 | switch(tag)
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89 | { |
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90 | |||
91 | case KXmlParser.START_TAG:
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92 | if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
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93 | { |
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94 | parseServiceTag(kxmlParser); |
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95 | } |
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96 | else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
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97 | { |
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98 | parseCapabilityTag(kxmlParser); |
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99 | } |
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100 | break;
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101 | case KXmlParser.END_TAG:
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102 | break;
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103 | case KXmlParser.TEXT:
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104 | |||
105 | break;
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106 | } |
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107 | tag = kxmlParser.next(); |
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108 | } |
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109 | |||
110 | kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
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111 | } |
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112 | } |
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113 | catch(XmlPullParserException parser_ex){
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114 | parser_ex.printStackTrace(); |
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115 | return false; |
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116 | } |
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117 | catch (IOException ioe) { |
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118 | ioe.printStackTrace(); |
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119 | return false; |
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120 | } finally {
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121 | return true; |
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122 | } |
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123 | } |
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124 | |||
125 | /**
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126 | * <p>Parses the Service Information </p>
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127 | */
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128 | private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
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129 | { |
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130 | int currentTag;
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131 | boolean end = false; |
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132 | |||
133 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
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134 | currentTag = parser.next(); |
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135 | |||
136 | while (!end)
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137 | { |
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138 | switch(currentTag)
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139 | { |
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140 | case KXmlParser.START_TAG:
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141 | if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
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142 | { |
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143 | serviceInfo.name = parser.nextText(); |
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144 | } |
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145 | else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
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146 | { |
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147 | serviceInfo.title = parser.nextText(); |
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148 | } |
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149 | else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
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150 | { |
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151 | serviceInfo.abstr = parser.nextText(); |
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152 | } |
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153 | else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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154 | { |
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155 | String value = null; |
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156 | value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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157 | if (value != null){ |
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158 | serviceInfo.online_resource = value; |
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159 | } |
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160 | } |
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161 | else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
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162 | (parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
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163 | { |
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164 | parser.skipSubTree(); |
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165 | } |
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166 | break;
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167 | case KXmlParser.END_TAG:
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168 | if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
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169 | end = true;
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170 | break;
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171 | case KXmlParser.TEXT:
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172 | break;
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173 | } |
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174 | if (!end)
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175 | currentTag = parser.next(); |
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176 | } |
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177 | parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
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178 | } |
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179 | |||
180 | /**
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181 | * <p>Parses the Capability Tag </p>
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182 | */
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183 | private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
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184 | { |
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185 | int currentTag;
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186 | boolean end = false; |
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187 | |||
188 | parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
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189 | currentTag = parser.next(); |
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190 | |||
191 | while (!end)
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192 | { |
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193 | switch(currentTag)
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194 | { |
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195 | case KXmlParser.START_TAG:
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196 | if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
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197 | { |
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198 | parseRequestTag(parser); |
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199 | } |
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200 | else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
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201 | { |
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202 | // TODO:
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203 | // add the exception formats supported.
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204 | } |
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205 | else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
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206 | { |
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207 | WMSLayer1_1_0 lyr = new WMSLayer1_1_0();
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208 | if (rootLayer == null) |
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209 | rootLayer = lyr; |
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210 | else {
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211 | // Handles when there is no general root layer, will use
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212 | // a fake non-queryable one.
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213 | if (!rootLayer.equals(getFakeRootLayer())){
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214 | WMSLayer1_1_0 aux = (WMSLayer1_1_0) rootLayer; |
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215 | rootLayer = getFakeRootLayer(); |
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216 | rootLayer.getChildren().add(aux); |
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217 | } |
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218 | rootLayer.getChildren().add(lyr); |
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219 | } |
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220 | lyr.parse(parser, layers); |
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221 | |||
222 | if (lyr.getName()!=null) |
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223 | layers.put(lyr.getName(), lyr); |
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224 | } |
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225 | else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
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226 | (parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
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227 | |||
228 | { |
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229 | parser.skipSubTree(); |
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230 | } |
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231 | break;
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232 | case KXmlParser.END_TAG:
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233 | if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
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234 | end = true;
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235 | break;
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236 | case KXmlParser.TEXT:
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237 | break;
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238 | } |
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239 | if (!end)
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240 | currentTag = parser.next(); |
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241 | } |
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242 | //parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
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243 | } |
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244 | |||
245 | |||
246 | private WMSLayer1_1_0 getFakeRootLayer(){
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247 | if (fakeRootLayer == null){ |
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248 | fakeRootLayer = new WMSLayer1_1_0();
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249 | fakeRootLayer.setTitle(serviceInfo.title); |
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250 | fakeRootLayer.setQueryable(false);
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251 | fakeRootLayer.setName(null);
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252 | } |
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253 | return fakeRootLayer;
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254 | } |
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255 | |||
256 | /* (non-Javadoc)
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257 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
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258 | */
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259 | protected String parseException(byte[] data) { |
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260 | ArrayList errors = new ArrayList(); |
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261 | KXmlParser kxmlParser = new KXmlParser();
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262 | |||
263 | try
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264 | { |
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265 | kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
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266 | kxmlParser.nextTag(); |
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267 | int tag;
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268 | if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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269 | { |
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270 | kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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271 | tag = kxmlParser.nextTag(); |
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272 | while(tag != KXmlParser.END_DOCUMENT)
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273 | { |
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274 | switch(tag)
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275 | { |
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276 | case KXmlParser.START_TAG:
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277 | if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
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278 | String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
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279 | errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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280 | String errorMessage = kxmlParser.nextText();
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281 | errors.add(errorCode+errorMessage); |
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282 | } |
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283 | break;
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284 | case KXmlParser.END_TAG:
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285 | break;
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286 | |||
287 | } |
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288 | tag = kxmlParser.nextTag(); |
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289 | } |
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290 | //kxmlParser.require(KXmlParser.END_DOCUMENT, null, null);
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291 | } |
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292 | } |
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293 | catch(XmlPullParserException parser_ex){
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294 | System.out.println(parser_ex.getMessage());
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295 | parser_ex.printStackTrace(); |
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296 | } |
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297 | catch (IOException ioe) { |
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298 | ioe.printStackTrace(); |
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299 | } |
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300 | String message = errors.size()>0? "" : null; |
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301 | for (int i = 0; i < errors.size(); i++) { |
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302 | message += (String) errors.get(i)+"\n"; |
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303 | } |
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304 | return message;
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305 | } |
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306 | |||
307 | /*
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308 | * (non-Javadoc)
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309 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetFeatureInfoRequest(org.gvsig.remoteClient.wms.WMSStatus, int, int)
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310 | */
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311 | protected WMSGetFeatureInfoRequest createGetFeatureInfoRequest(
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312 | WMSStatus status, int x, int y) { |
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313 | return new WMSGetFeatureInfoRequest1_1_0(status, this, x, y); |
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314 | } |
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315 | |||
316 | /*
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317 | * (non-Javadoc)
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318 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetMapRequest(org.gvsig.remoteClient.wms.WMSStatus)
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319 | */
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320 | protected WMSGetMapRequest createGetMapRequest(WMSStatus status) {
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321 | return new WMSGetMapRequest1_1_0(status, this); |
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322 | } |
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323 | |||
324 | /*
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325 | * (non-Javadoc)
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326 | * @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetLegendGraphicRequest(org.gvsig.remoteClient.wms.WMSStatus, java.lang.String)
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327 | */
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328 | protected WMSGetLegendGraphicRequest createGetLegendGraphicRequest(
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329 | WMSStatus status, String layerName) {
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330 | return new WMSGetLegendGraphicRequest1_1_0(status, this, layerName); |
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331 | } |
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332 | |||
333 | /* (non-Javadoc)
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334 | * @see org.gvsig.remoteclient.wms.WMSProtocolHandler#createGetCapabilitiesRequest(org.gvsig.remoteclient.wms.WMSStatus)
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335 | */
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336 | protected WMSGetCapabilitiesRequest createGetCapabilitiesRequest(
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337 | WMSStatus status) { |
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338 | return new WMSGetCapabilitiesRequest1_1_0(status, this); |
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339 | } |
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340 | |||
341 | } |