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/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
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* full list of contributors). Published under the 2-clause BSD license.
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* See license.txt in the OpenLayers distribution or repository for the
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* full text of the license. */
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/**
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* @requires OpenLayers/Protocol.js
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*/
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/**
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* Class: OpenLayers.Protocol.WFS
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* Used to create a versioned WFS protocol. Default version is 1.0.0.
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*
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* Returns:
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* {<OpenLayers.Protocol>} A WFS protocol of the given version.
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*
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* Example:
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* (code)
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* var protocol = new OpenLayers.Protocol.WFS({
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* version: "1.1.0",
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* url: "http://demo.opengeo.org/geoserver/wfs",
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* featureType: "tasmania_roads",
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* featureNS: "http://www.openplans.org/topp",
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* geometryName: "the_geom"
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* });
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* (end)
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*
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* See the protocols for specific WFS versions for more detail.
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*/
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OpenLayers.Protocol.WFS = function(options) {
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options = OpenLayers.Util.applyDefaults(
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options, OpenLayers.Protocol.WFS.DEFAULTS
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);
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var cls = OpenLayers.Protocol.WFS["v"+options.version.replace(/\./g, "_")];
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if(!cls) {
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throw "Unsupported WFS version: " + options.version;
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}
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return new cls(options);
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};
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/**
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* Function: fromWMSLayer
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* Convenience function to create a WFS protocol from a WMS layer. This makes
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* the assumption that a WFS requests can be issued at the same URL as
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* WMS requests and that a WFS featureType exists with the same name as the
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* WMS layer.
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*
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* This function is designed to auto-configure <url>, <featureType>,
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* <featurePrefix> and <srsName> for WFS <version> 1.1.0. Note that
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* srsName matching with the WMS layer will not work with WFS 1.0.0.
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*
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* Parameters:
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* layer - {<OpenLayers.Layer.WMS>} WMS layer that has a matching WFS
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* FeatureType at the same server url with the same typename.
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* options - {Object} Default properties to be set on the protocol.
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*
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* Returns:
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* {<OpenLayers.Protocol.WFS>}
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*/
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OpenLayers.Protocol.WFS.fromWMSLayer = function(layer, options) {
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var typeName, featurePrefix;
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var param = layer.params["LAYERS"];
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var parts = (OpenLayers.Util.isArray(param) ? param[0] : param).split(":");
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if(parts.length > 1) {
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featurePrefix = parts[0];
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}
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typeName = parts.pop();
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var protocolOptions = {
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url: layer.url,
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featureType: typeName,
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featurePrefix: featurePrefix,
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srsName: layer.projection && layer.projection.getCode() ||
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layer.map && layer.map.getProjectionObject().getCode(),
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version: "1.1.0"
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};
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return new OpenLayers.Protocol.WFS(OpenLayers.Util.applyDefaults(
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options, protocolOptions
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));
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};
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/**
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* Constant: OpenLayers.Protocol.WFS.DEFAULTS
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*/
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OpenLayers.Protocol.WFS.DEFAULTS = {
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"version": "1.0.0"
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};
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