make OWSCommon v1 support constraints in Get and Post nodes

lib/OpenLayers/Format/OWSCommon/v1.js

@@ -173,10 +173,22 @@ OpenLayers.Format.OWSCommon.v1 = OpenLayers.Class(OpenLayers.Format.XML, {
             "Get": function(node, http) {
                 http.get = this.getAttributeNS(node, 
                     this.namespaces.xlink, "href");
+                if (!http.constraints) {
+                    http.constraints = {};
+                }
+                var obj = {};
+                this.readChildNodes(node, obj);
+                http.constraints.get = obj.constraints;
             },
             "Post": function(node, http) {
                 http.post = this.getAttributeNS(node, 
                     this.namespaces.xlink, "href");
+                if (!http.constraints) {
+                    http.constraints = {};
+                }
+                var obj = {};
+                this.readChildNodes(node, obj);
+                http.constraints.post = obj.constraints;
             },
             "Parameter": function(node, operation) {
                 if (!operation.parameters) {
@@ -186,6 +198,14 @@ OpenLayers.Format.OWSCommon.v1 = OpenLayers.Class(OpenLayers.Format.XML, {
                 operation.parameters[name] = {};
                 this.readChildNodes(node, operation.parameters[name]);
             },
+            "Constraint": function(node, obj) {
+                if (!obj.constraints) {
+                    obj.constraints = {};
+                }
+                var name = node.getAttribute("name");
+                obj.constraints[name] = {};
+                this.readChildNodes(node, obj.constraints[name]);
+            },
             "Value": function(node, allowedValues) {
                 allowedValues[this.getChildValue(node)] = true;
             },

tests/Format/WMTSCapabilities/v1_0_0.html

@@ -4,7 +4,7 @@
     <script type="text/javascript">
 
         function test_ows(t) {
-            t.plan(17);
+            t.plan(20);
             var xml = document.getElementById("ogcsample").firstChild.nodeValue;
             var doc = new OpenLayers.Format.XML().read(xml);
             var obj = new OpenLayers.Format.WMTSCapabilities().read(doc);
@@ -31,8 +31,17 @@
             // ows:OperationsMetadata
             var operationsMetadata = obj.operationsMetadata;
             t.eq(operationsMetadata.GetCapabilities.dcp.http.get, "http://www.miramon.uab.es/cgi-bin/MiraMon5_0.cgi?", "ows:OperationsMetadata GetCapabilities url is correct");
+            t.eq(operationsMetadata.GetCapabilities.dcp.http.constraints.get.GetEncoding.allowedValues,
+                 {'KVP': true},
+                 "ows:OperationsMetadata GetCapabilities Constraints Get is correct");
             t.eq(operationsMetadata.GetFeatureInfo.dcp.http.get, "http://www.miramon.uab.es/cgi-bin/MiraMon5_0.cgi?", "ows:OperationsMetadata GetFeatureInfo url is correct");
+            t.eq(operationsMetadata.GetFeatureInfo.dcp.http.constraints.get,
+                 undefined,
+                 "ows:OperationsMetadata GetFeatureInfo Constraints Get is correct");
             t.eq(operationsMetadata.GetTile.dcp.http.get, "http://www.miramon.uab.es/cgi-bin/MiraMon5_0.cgi?", "ows:OperationsMetadata GetTile url is correct");
+            t.eq(operationsMetadata.GetTile.dcp.http.constraints.get,
+                 undefined,
+                 "ows:OperationsMetadata GetTile Constraints Get is correct");
         }
     
         function test_layers(t) {