forgot to add WFSCapabilities.js and test in my previous commit. Thanks

tschaub for spotting this (see #1988)


git-svn-id: http://svn.openlayers.org/trunk/openlayers@9220 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/WFSCapabilities.js

@@ -0,0 +1,75 @@
+/**
+ * @requires OpenLayers/Format/XML.js
+ */
+
+/**
+ * Class: OpenLayers.Format.WFSCapabilities
+ * Read WFS Capabilities.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.WFSCapabilities = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * APIProperty: defaultVersion
+     * {String} Version number to assume if none found.  Default is "1.1.0".
+     */
+    defaultVersion: "1.1.0",
+    
+    /**
+     * APIProperty: version
+     * {String} Specify a version string if one is known.
+     */
+    version: null,
+
+    /**
+     * Constructor: OpenLayers.Format.WFSCapabilities
+     * Create a new parser for WFS 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 a list of layers. 
+     * 
+     * Parameters: 
+     * data - {String} or {DOMElement} data to read/parse.
+     *
+     * Returns:
+     * {Array} List of named layers.
+     */
+    read: function(data) {
+        if(typeof data == "string") {
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        var root = data.documentElement;
+        var version = this.version;
+        if(!version) {
+            version = root.getAttribute("version");
+            if(!version) {
+                version = this.defaultVersion;
+            }
+        }
+        var constr = OpenLayers.Format.WFSCapabilities[
+            "v" + version.replace(/\./g, "_")
+        ];
+        if(!constr) {
+            throw "Can't find a WFS 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.WFSCapabilities" 
+
+});