/* 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/Protocol.js
*/
/**
* Function: OpenLayers.Protocol.WFS
* Used to create a versioned WFS protocol. Default version is 1.0.0.
*
* Returns:
* {<OpenLayers.Protocol>} A WFS protocol of the given version.
*/
OpenLayers.Protocol.WFS = function(options) {
options = OpenLayers.Util.applyDefaults(
options, OpenLayers.Protocol.WFS.DEFAULTS
);
var cls = OpenLayers.Protocol.WFS["v"+options.version.replace(/\./g, "_")];
if(!cls) {
throw "Unsupported WFS version: " + options.version;
}
return new cls(options);
};
/**
* Function: OpenLayers.Protocol.WFS.fromWMSLayer
* Convenience function to create a WFS protocol from a WMS layer. This makes
* the assumption that a WFS requests can be issued at the same URL as
* WMS requests and that a WFS featureType exists with the same name as the
* WMS layer.
*
* This function is designed to auto-configure <url>, <featureType>,
* <featurePrefix> and <srsName> for WFS <version> 1.1.0. Note that
* srsName matching with the WMS layer will not work with WFS 1.0.0..
*
* Parameters:
* layer - {<OpenLayers.Layer.WMS>} WMS layer that has a matching WFS
* FeatureType at the same server url with the same typename.
* options - {Object} Default properties to be set on the protocol.
*
*/
OpenLayers.Protocol.WFS.fromWMSLayer = function(layer, options) {
var typeName, featurePrefix;
var param = layer.params["LAYERS"];
var parts = (param instanceof Array ? param[0] : param).split(":");
if(parts.length > 1) {
featurePrefix = parts[0];
}
typeName = parts.pop();
var protocolOptions = {
url: layer.url,
featureType: typeName,
featurePrefix: featurePrefix,
srsName: layer.projection && layer.projection.getCode() ||
layer.map && layer.map.getProjectionObject().getCode(),
version: "1.1.0"
};
return new OpenLayers.Protocol.WFS(OpenLayers.Util.applyDefaults(
options, protocolOptions
));
};
/**
* Constant: OpenLayers.Protocol.WFS.DEFAULTS
*/
OpenLayers.Protocol.WFS.DEFAULTS = {
"version": "1.0.0"
};
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