Adding a WMTS layer and capabilities parser to work with OGC WMTS service implementations. Thanks August Town for this nice contribution. p=august,me r=me (closes #2637)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10388 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2010-06-12 02:41:51 +00:00
parent f7113df376
commit d1e24bdcc0
11 changed files with 2450 additions and 0 deletions
--- a/lib/OpenLayers/Format/WMTSCapabilities.js
+++ b/lib/OpenLayers/Format/WMTSCapabilities.js
@@ -0,0 +1,80 @@
+/* Copyright (c) 2006-2009 MetaCarta, Inc., 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.WMTSCapabilities
+ * Read WMTS Capabilities.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.WMTSCapabilities = 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.WMTSCapabilities
+     * Create a new parser for WMTS 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 WMTS Capabilities
+     */
+    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.WMTSCapabilities[
+                "v" + version.replace(/\./g, "_")
+            ];
+            if (!constr) {
+                throw new Error("Can't find a WMTS capabilities parser for version " + version);
+            }
+            var parser = new constr(this.options);
+        }
+        return parser.read(data);
+    },
+    
+    CLASS_NAME: "OpenLayers.Format.WMTSCapabilities" 
+
+});