1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for * full list of contributors). Published under the Clear BSD license. * See http://svn.openlayers.org/trunk/openlayers/license.txt for the * full text of the license. */ /** * @requires OpenLayers/Format/XML.js * @requires OpenLayers/Format/WFST.js */ /** * Class: OpenLayers.Format.WFST.v1 * Superclass for WFST parsers. * * Inherits from: * - <OpenLayers.Format.XML> */ OpenLayers.Format.WFST.v1 = OpenLayers.Class(OpenLayers.Format.XML, { /** * Property: namespaces * {Object} Mapping of namespace aliases to namespace URIs. */ namespaces: { xlink: "http://www.w3.org/1999/xlink", xsi: "http://www.w3.org/2001/XMLSchema-instance", wfs: "http://www.opengis.net/wfs", gml: "http://www.opengis.net/gml", ogc: "http://www.opengis.net/ogc" }, /** * Property: defaultPrefix */ defaultPrefix: "wfs", /** * Property: version * {String} WFS version number. */ version: null, /** * Property: schemaLocation * {String} Schema location for a particular minor version. */ schemaLocations: null, /** * APIProperty: srsName * {String} URI for spatial reference system. */ srsName: null, /** * APIProperty: extractAttributes * {Boolean} Extract attributes from GML. Default is true. */ extractAttributes: true, /** * APIProperty: xy * {Boolean} Order of the GML coordinate true:(x,y) or false:(y,x) * Changing is not recommended, a new Format should be instantiated. */ xy: true, /** * Property: stateName * {Object} Maps feature states to node names. */ stateName: null, /** * Constructor: OpenLayers.Format.WFST.v1 * Instances of this class are not created directly. Use the * <OpenLayers.Format.WFST.v1_0_0> or <OpenLayers.Format.WFST.v1_1_0> * constructor instead. * * Parameters: * options - {Object} An optional object whose properties will be set on * this instance. */ initialize: function(options) { // set state name mapping this.stateName = {}; this.stateName[OpenLayers.State.INSERT] = "wfs:Insert"; this.stateName[OpenLayers.State.UPDATE] = "wfs:Update"; this.stateName[OpenLayers.State.DELETE] = "wfs:Delete"; OpenLayers.Format.XML.prototype.initialize.apply(this, [options]); }, /** * Method: getSrsName */ getSrsName: function(feature, options) { var srsName = options && options.srsName; if(!srsName) { if(feature && feature.layer) { srsName = feature.layer.projection.getCode(); } else { srsName = this.srsName; } } return srsName; }, /** * APIMethod: read * Parse the response from a transaction. Because WFS is split into * Transaction requests (create, update, and delete) and GetFeature * requests (read), this method handles parsing of both types of * responses. * * Parameters: * data - {String | Document} The WFST document to read * options - {Object} Options for the reader * * Valid options properties: * output - {String} either "features" or "object". The default is * "features", which means that the method will return an array of * features. If set to "object", an object with a "features" property * and other properties read by the parser will be returned. * * Returns: * {Array | Object} Output depending on the output option. */ read: function(data, options) { options = options || {}; OpenLayers.Util.applyDefaults(options, { output: "features" }); if(typeof data == "string") { data = OpenLayers.Format.XML.prototype.read.apply(this, [data]); } if(data && data.nodeType == 9) { data = data.documentElement; } var obj = {}; if(data) { this.readNode(data, obj); } if(obj.features && options.output === "features") { obj = obj.features; } return obj; }, /** * Property: readers * Contains public functions, grouped by namespace prefix, that will * be applied when a namespaced node is found matching the function * name. The function will be applied in the scope of this parser * with two arguments: the node being read and a context object passed * from the parent. */ readers: { "wfs": { "FeatureCollection": function(node, obj) { obj.features = []; this.readChildNodes(node, obj); } } }, /** * Method: write * Given an array of features, write a WFS transaction. This assumes * the features have a state property that determines the operation * type - insert, update, or delete. * * Parameters: * features - {Array(<OpenLayers.Feature.Vector>)} A list of features. * * Returns: * {String} A serialized WFS transaction. */ write: function(features) { var node = this.writeNode("wfs:Transaction", features); var value = this.schemaLocationAttr(); if(value) { this.setAttributeNS( node, this.namespaces["xsi"], "xsi:schemaLocation", value ) } return OpenLayers.Format.XML.prototype.write.apply(this, [node]); }, /** * Property: writers * As a compliment to the readers property, this structure contains public * writing functions grouped by namespace alias and named like the * node names they produce. */ writers: { "wfs": { "GetFeature": function(options) { var node = this.createElementNSPlus("wfs:GetFeature", { attributes: { service: "WFS", version: this.version, outputFormat: options && options.outputFormat, maxFeatures: options && options.maxFeatures, "xsi:schemaLocation": this.schemaLocationAttr(options) } }); if (typeof this.featureType == "string") { this.writeNode("Query", options, node); } else { for (var i=0,len = this.featureType.length; i<len; i++) { options.featureType = this.featureType[i]; this.writeNode("Query", options, node); } } return node; }, "Transaction": function(features) { var node = this.createElementNSPlus("wfs:Transaction", { attributes: { service: "WFS", version: this.version } }); if(features) { var name, feature; for(var i=0, len=features.length; i<len; ++i) { feature = features[i]; name = this.stateName[feature.state]; if(name) { this.writeNode(name, feature, node); } } } return node; }, "Insert": function(feature) { var node = this.createElementNSPlus("wfs:Insert"); this.srsName = this.getSrsName(feature); this.writeNode("feature:_typeName", feature, node); return node; }, "Update": function(feature) { var node = this.createElementNSPlus("wfs:Update", { attributes: { typeName: (this.featureNS ? this.featurePrefix + ":" : "") + this.featureType } }); if(this.featureNS) { node.setAttribute("xmlns:" + this.featurePrefix, this.featureNS); } // add in geometry if (this.geometryName !== null) { this.writeNode( "Property", {name: this.geometryName, value: feature}, node ); } // add in attributes for(var key in feature.attributes) { if(feature.attributes[key] !== undefined) { this.writeNode( "Property", {name: key, value: feature.attributes[key]}, node ); } } // add feature id filter this.writeNode("ogc:Filter", new OpenLayers.Filter.FeatureId({ fids: [feature.fid] }), node); return node; }, "Property": function(obj) { var node = this.createElementNSPlus("wfs:Property"); this.writeNode("Name", obj.name, node); if(obj.value !== null) { this.writeNode("Value", obj.value, node); } return node; }, "Name": function(name) { return this.createElementNSPlus("wfs:Name", {value: name}); }, "Value": function(obj) { var node; if(obj instanceof OpenLayers.Feature.Vector) { node = this.createElementNSPlus("wfs:Value"); this.srsName = this.getSrsName(obj); var geom = this.writeNode("feature:_geometry", obj.geometry).firstChild; node.appendChild(geom); } else { node = this.createElementNSPlus("wfs:Value", {value: obj}); } return node; }, "Delete": function(feature) { var node = this.createElementNSPlus("wfs:Delete", { attributes: { typeName: (this.featureNS ? this.featurePrefix + ":" : "") + this.featureType } }); if(this.featureNS) { node.setAttribute("xmlns:" + this.featurePrefix, this.featureNS); } this.writeNode("ogc:Filter", new OpenLayers.Filter.FeatureId({ fids: [feature.fid] }), node); return node; } } }, /** * Method: schemaLocationAttr * Generate the xsi:schemaLocation attribute value. * * Returns: * {String} The xsi:schemaLocation attribute or undefined if none. */ schemaLocationAttr: function(options) { options = OpenLayers.Util.extend({ featurePrefix: this.featurePrefix, schema: this.schema }, options); var schemaLocations = OpenLayers.Util.extend({}, this.schemaLocations); if(options.schema) { schemaLocations[options.featurePrefix] = options.schema; } var parts = []; var uri; for(var key in schemaLocations) { uri = this.namespaces[key]; if(uri) { parts.push(uri + " " + schemaLocations[key]); } } var value = parts.join(" ") || undefined; return value; }, /** * Method: setFilterProperty * Set the property of each spatial filter. * |