/* 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
*/
/**
* Class: OpenLayers.Format.SOSCapabilities
* Read SOS Capabilities.
*
* Inherits from:
* - <OpenLayers.Format.XML>
*/
OpenLayers.Format.SOSCapabilities = OpenLayers.Class(OpenLayers.Format.XML, {
/**
* APIProperty: defaultVersion
* {String} Version number to assume if none found. Default is "1.0.0".
*/
defaultVersion: "1.0.0",
/**
* APIProperty: version
* {String} Specify a version string if one is known.
*/
version: null,
/**
* Property: parser
* {<OpenLayers.Format>} A cached versioned format used for reading.
*/
parser: null,
/**
* Constructor: OpenLayers.Format.SOSCapabilities
* Create a new parser for SOS capabilities.
*
* Parameters:
* options - {Object} An optional object whose properties will be set on
* this instance.
*/
initialize: function(options) {
OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
this.options = options;
},
/**
* APIMethod: read
* Read capabilities data from a string, and return information about
* the service (offering and observedProperty mostly).
*
* Parameters:
* data - {String} or {DOMElement} data to read/parse.
*
* Returns:
* {Object} Info about the SOS
*/
read: function(data) {
if(typeof data == "string") {
data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
}
var root = data.documentElement;
var version = this.version || root.getAttribute("version") || this.defaultVersion;
if(!this.parser || this.parser.version !== version) {
var constr = OpenLayers.Format.SOSCapabilities[
"v" + version.replace(/\./g, "_")
];
if(!constr) {
throw "Can't find a SOS capabilities parser for version " + version;
}
var parser = new constr(this.options);
}
var capabilities = parser.read(data);
capabilities.version = version;
return capabilities;
},
CLASS_NAME: "OpenLayers.Format.SOSCapabilities"
});