Finish write support for features

src/objectliterals.jsdoc

@@ -321,6 +321,8 @@
  * @property {boolean|undefined} multiSurface Write gml:multiSurface instead
  *     of gml:MultiPolygon. Since the latter is deprecated in GML 3, the
  *     default is `true´.
+ * @property {string|undefined} schemaLocation Optional schemaLocation to use
+ *     when writing out the GML, this will override the default provided.
  */
 
 /**

src/ol/format/gmlformat.js

@@ -80,6 +80,15 @@ ol.format.GML = function(opt_options) {
   this.multiSurface_ = goog.isDef(options.multiSurface) ?
       options.multiSurface : true;
 
+  /**
+   * @private
+   * @type {string}
+   */
+  this.schemaLocation_ = goog.isDef(options.schemaLocation) ?
+      options.schemaLocation : ('http://www.opengis.net/gml ' +
+      'http://schemas.opengis.net/gml/3.1.1/profiles/gmlsfProfile/' +
+      '1.0.0/gmlsf.xsd');
+
   goog.base(this);
 };
 goog.inherits(ol.format.GML, ol.format.XMLFeature);
@@ -1472,8 +1481,12 @@ ol.format.GML.writeCurveSegments_ = function(node, line, objectStack) {
  * @private
  */
 ol.format.GML.writeGeometry_ = function(node, geometry, objectStack) {
+  var context = objectStack[objectStack.length - 1];
+  goog.asserts.assert(goog.isObject(context));
+  var item = goog.object.clone(context);
+  goog.object.set(item, 'node', node);
   ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
-      ({node: node}), ol.format.GML.GEOMETRY_SERIALIZERS_,
+      (item), ol.format.GML.GEOMETRY_SERIALIZERS_,
       ol.format.GML.GEOMETRY_NODE_FACTORY_, [geometry], []);
 };
 
@@ -1485,6 +1498,10 @@ ol.format.GML.writeGeometry_ = function(node, geometry, objectStack) {
  * @private
  */
 ol.format.GML.writeFeature_ = function(node, feature, objectStack) {
+  var fid = feature.getId();
+  if (goog.isDef(fid)) {
+    node.setAttribute('fid', fid);
+  }
   var context = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(context));
   var featureNS = goog.object.get(context, 'featureNS');
@@ -1504,8 +1521,10 @@ ol.format.GML.writeFeature_ = function(node, feature, objectStack) {
           ol.format.XSD.writeStringTextNode);
     }
   }
+  var item = goog.object.clone(context);
+  goog.object.set(item, 'node', node);
   ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
-      ({node: node}), serializers,
+      (item), serializers,
       ol.xml.OBJECT_PROPERTY_NODE_FACTORY,
       values,
       objectStack, keys);
@@ -1523,13 +1542,14 @@ ol.format.GML.writeFeatureMembers_ = function(node, features, objectStack) {
   goog.asserts.assert(goog.isObject(context));
   var featureType = goog.object.get(context, 'featureType');
   var featureNS = goog.object.get(context, 'featureNS');
-  //featureNS = 'http://www.opengis.net/gml';
   var serializers = {};
   serializers[featureNS] = {};
   serializers[featureNS][featureType] = ol.xml.makeChildAppender(
       ol.format.GML.writeFeature_);
+  var item = goog.object.clone(context);
+  goog.object.set(item, 'node', node);
   ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
-      ({node: node, featureType: featureType, featureNS: featureNS}),
+      (item),
       serializers,
       ol.xml.makeSimpleNodeFactory(featureType, featureNS), features, []);
 };
@@ -1653,18 +1673,6 @@ ol.format.GML.GEOMETRY_SERIALIZERS_ = {
 };
 
 
-/**
- * @type {Object.<string, Object.<string, ol.xml.Serializer>>}
- * @private
- */
-ol.format.GML.GML_SERIALIZERS_ = {
-  'http://www.opengis.net/gml': {
-    'featureMembers': ol.xml.makeChildAppender(
-        ol.format.GML.writeFeatureMembers_)
-  }
-};
-
-
 /**
  * @const
  * @param {*} value Value.
@@ -1718,10 +1726,12 @@ ol.format.GML.prototype.writeGeometryNode = function(geometry) {
  * @inheritDoc
  */
 ol.format.GML.prototype.writeFeaturesNode = function(features) {
-  var collection = ol.xml.createElementNS('http://www.opengis.net/wfs',
-      'FeatureCollection');
+  var node = ol.xml.createElementNS('http://www.opengis.net/gml',
+      'featureMembers');
+  ol.xml.setAttributeNS(node, 'http://www.w3.org/2001/XMLSchema-instance',
+      'xsi:schemaLocation', this.schemaLocation_);
   var context = {
-    node: collection,
+    node: node,
     srsName: this.srsName_,
     curve: this.curve_,
     surface: this.surface_,
@@ -1730,9 +1740,6 @@ ol.format.GML.prototype.writeFeaturesNode = function(features) {
     featureNS: this.featureNS_,
     featureType: this.featureType_
   };
-  ol.xml.pushSerializeAndPop(/** @type {ol.xml.NodeStackItem} */
-      (context), ol.format.GML.GML_SERIALIZERS_,
-      ol.xml.makeSimpleNodeFactory('featureMembers',
-          'http://www.opengis.net/gml'), [features], []);
-  return collection;
+  ol.format.GML.writeFeatureMembers_(node, features, [context]);
+  return node;
 };

test/spec/ol/format/gmlformat.test.js

@@ -678,15 +678,25 @@ describe('ol.format.GML', function() {
 
   describe('when parsing TOPP states GML', function() {
 
-    var features;
+    var features, text, gmlFormat;
     before(function(done) {
       afterLoadText('spec/ol/format/gml/topp-states-gml.xml', function(xml) {
         try {
+          var schemaLoc = 'http://www.openplans.org/topp ' +
+              'http://demo.opengeo.org/geoserver/wfs?service=WFS&version=' +
+              '1.1.0&request=DescribeFeatureType&typeName=topp:states ' +
+              'http://www.opengis.net/gml ' +
+              'http://schemas.opengis.net/gml/3.2.1/gml.xsd';
           var config = {
             'featureNS': 'http://www.openplans.org/topp',
-            'featureType': 'states'
+            'featureType': 'states',
+            'multiSurface': true,
+            'srsName': 'urn:x-ogc:def:crs:EPSG:4326',
+            'schemaLocation': schemaLoc
           };
-          features = new ol.format.GML(config).readFeatures(xml);
+          text = xml;
+          gmlFormat = new ol.format.GML(config);
+          features = gmlFormat.readFeatures(xml);
         } catch (e) {
           done(e);
         }
@@ -702,11 +712,16 @@ describe('ol.format.GML', function() {
       expect(features[0].getId()).to.equal('states.1');
     });
 
+    it('writes back features as GML', function() {
+      var serialized = gmlFormat.writeFeatures(features);
+      expect(serialized).to.xmleql(ol.xml.load(text));
+    });
+
   });
 
   describe('when parsing TOPP states GML from WFS', function() {
 
-    var features, feature, text, wfsFormat;
+    var features, feature;
     before(function(done) {
       afterLoadText('spec/ol/format/gml/topp-states-wfs.xml', function(xml) {
         try {
@@ -714,9 +729,7 @@ describe('ol.format.GML', function() {
             'featureNS': 'http://www.openplans.org/topp',
             'featureType': 'states'
           };
-          text = xml;
-          wfsFormat = new ol.format.GML(config);
-          features = wfsFormat.readFeatures(xml);
+          features = new ol.format.GML(config).readFeatures(xml);
         } catch (e) {
           done(e);
         }