use namespace URI instead of prefix as suggested by @tschaub and discussed with @ahocevar

src/ol/parser/ogc/exceptionreport.js

@@ -9,11 +9,6 @@ goog.require('ol.parser.XML');
  * @extends {ol.parser.XML}
  */
 ol.parser.ogc.ExceptionReport = function() {
-  this.defaultPrefix = 'ogc';
-  this.namespaces = {};
-  this.namespaces['ogc'] = 'http://www.opengis.net/ogc';
-  this.namespaces['ows'] = 'http://www.opengis.net/ows';
-  this.namespaces['ows11'] = 'http://www.opengis.net/ows/1.1';
   var exceptionReader = function(node, exceptionReport) {
     var exception = {
       code: node.getAttribute('exceptionCode'),
@@ -28,7 +23,7 @@ ol.parser.ogc.ExceptionReport = function() {
     exception.texts.push(text);
   };
   this.readers = {
-    'ogc': {
+    'http://www.opengis.net/ogc': {
       'ServiceExceptionReport': function(node, obj) {
         obj['exceptionReport'] = {};
         obj['exceptionReport']['exceptions'] = [];
@@ -42,7 +37,7 @@ ol.parser.ogc.ExceptionReport = function() {
         exceptionReport['exceptions'].push(exception);
       }
     },
-    'ows': {
+    'http://www.opengis.net/ows': {
       'ExceptionReport': function(node, obj) {
         obj.success = false;
         obj.exceptionReport = {
@@ -59,7 +54,7 @@ ol.parser.ogc.ExceptionReport = function() {
         exceptionTextReader.apply(this, arguments);
       }
     },
-    'ows11': {
+    'http://www.opengis.net/ows/1.1': {
       'ExceptionReport': function(node, obj) {
         obj.exceptionReport = {
           version: node.getAttribute('version'),

src/ol/parser/ogc/wmscapabilities_v1.js

@@ -10,14 +10,10 @@ goog.require('ol.parser.XML');
  * @extends {ol.parser.XML}
  */
 ol.parser.ogc.WMSCapabilities_v1 = function() {
-  this.defaultPrefix = 'wms';
+  this.defaultNamespaceURI = 'http://www.opengis.net/wms';
   this.errorProperty = 'service';
-  this.namespaces = {};
-  this.namespaces['wms'] = 'http://www.opengis.net/wms';
-  this.namespaces['xlink'] = 'http://www.w3.org/1999/xlink';
-  this.namespaces['xsi'] = 'http://www.w3.org/2001/XMLSchema-instance';
   this.readers = {
-    'wms': {
+    'http://www.opengis.net/wms': {
       'Service': function(node, obj) {
         obj['service'] = {};
         this.readChildNodes(node, obj['service']);
@@ -51,7 +47,7 @@ ol.parser.ogc.WMSCapabilities_v1 = function() {
         return bbox;
       },
       'OnlineResource': function(node, obj) {
-        obj.href = this.getAttributeNS(node, this.namespaces['xlink'],
+        obj.href = this.getAttributeNS(node, 'http://www.w3.org/1999/xlink',
             'href');
       },
       'ContactInformation': function(node, obj) {

src/ol/parser/ogc/wmscapabilities_v1_1.js

@@ -9,8 +9,8 @@ goog.require('ol.parser.ogc.WMSCapabilities_v1');
  */
 ol.parser.ogc.WMSCapabilities_v1_1 = function() {
   goog.base(this);
-  var bboxreader = this.readers['wms']['BoundingBox'];
+  var bboxreader = this.readers['http://www.opengis.net/wms']['BoundingBox'];
-  goog.object.extend(this.readers['wms'], {
+  goog.object.extend(this.readers['http://www.opengis.net/wms'], {
     'WMT_MS_Capabilities': function(node, obj) {
       this.readChildNodes(node, obj);
     },

src/ol/parser/ogc/wmscapabilities_v1_1_0.js

@@ -10,7 +10,7 @@ goog.require('ol.parser.ogc.WMSCapabilities_v1_1');
 ol.parser.ogc.WMSCapabilities_v1_1_0 = function() {
   goog.base(this);
   this.version = '1.1.0';
-  goog.object.extend(this.readers['wms'], {
+  goog.object.extend(this.readers['http://www.opengis.net/wms'], {
     'SRS': function(node, obj) {
       var srs = this.getChildValue(node);
       var values = srs.split(/ +/);

src/ol/parser/ogc/wmscapabilities_v1_1_1.js

@@ -10,7 +10,7 @@ goog.require('ol.parser.ogc.WMSCapabilities_v1_1');
 ol.parser.ogc.WMSCapabilities_v1_1_1 = function() {
   goog.base(this);
   this.version = '1.1.1';
-  goog.object.extend(this.readers['wms'], {
+  goog.object.extend(this.readers['http://www.opengis.net/wms'], {
     'SRS': function(node, obj) {
       obj.srs[this.getChildValue(node)] = true;
     }

src/ol/parser/ogc/wmscapabilities_v1_1_1_WMSC.js

@@ -10,7 +10,7 @@ goog.require('ol.parser.ogc.WMSCapabilities_v1_1_1');
 ol.parser.ogc.WMSCapabilities_v1_1_1_WMSC = function() {
   goog.base(this);
   this.profile = 'WMSC';
-  goog.object.extend(this.readers['wms'], {
+  goog.object.extend(this.readers['http://www.opengis.net/wms'], {
     'VendorSpecificCapabilities': function(node, obj) {
       obj.vendorSpecific = {tileSets: []};
       this.readChildNodes(node, obj.vendorSpecific);

src/ol/parser/ogc/wmscapabilities_v1_3_0.js

@@ -9,8 +9,8 @@ goog.require('ol.parser.ogc.WMSCapabilities_v1');
  */
 ol.parser.ogc.WMSCapabilities_v1_3_0 = function() {
   goog.base(this);
-  var bboxreader = this.readers['wms']['BoundingBox'];
+  var bboxreader = this.readers['http://www.opengis.net/wms']['BoundingBox'];
-  goog.object.extend(this.readers['wms'], {
+  goog.object.extend(this.readers['http://www.opengis.net/wms'], {
     'WMS_Capabilities': function(node, obj) {
       this.readChildNodes(node, obj);
     },
@@ -30,7 +30,7 @@ ol.parser.ogc.WMSCapabilities_v1_3_0 = function() {
     },
     'CRS': function(node, obj) {
       // CRS is the synonym of SRS
-      this.readers['wms']['SRS'].apply(this, arguments);
+      this.readers['http://www.opengis.net/wms']['SRS'].apply(this, arguments);
     },
     'EX_GeographicBoundingBox': function(node, obj) {
       // replacement of LatLonBoundingBox
@@ -87,7 +87,8 @@ ol.parser.ogc.WMSCapabilities_v1_3_0 = function() {
   });
   this.readers['sld'] = {
     'UserDefinedSymbolization': function(node, obj) {
-      this.readers.wms.UserDefinedSymbolization.apply(this, arguments);
+      var readers = this.readers['http://www.opengis.net/wms'];
+      readers.UserDefinedSymbolization.apply(this, arguments);
       // add the two extra attributes
       var value = node.getAttribute('InlineFeature');
       obj['userSymbols'].inlineFeature = parseInt(value, 10) == 1;
@@ -95,10 +96,12 @@ ol.parser.ogc.WMSCapabilities_v1_3_0 = function() {
       obj['userSymbols'].remoteWCS = parseInt(value, 10) == 1;
     },
     'DescribeLayer': function(node, obj) {
-      this.readers.wms.DescribeLayer.apply(this, arguments);
+      var readers = this.readers['http://www.opengis.net/wms'];
+      readers.DescribeLayer.apply(this, arguments);
     },
     'GetLegendGraphic': function(node, obj) {
-      this.readers.wms.GetLegendGraphic.apply(this, arguments);
+      var readers = this.readers['http://www.opengis.net/wms'];
+      readers.GetLegendGraphic.apply(this, arguments);
     }
   };
 };

src/ol/parser/xml.js

@@ -1,5 +1,4 @@
 goog.provide('ol.parser.XML');
-goog.require('goog.object');
 
 
 
@@ -7,12 +6,6 @@ goog.require('goog.object');
  * @constructor
  */
 ol.parser.XML = function() {
-  // clone the namespaces object and set all namespace aliases
-  this.namespaces = goog.object.clone(this.namespaces);
-  this.namespaceAlias = {};
-  for (var alias in this.namespaces) {
-    this.namespaceAlias[this.namespaces[alias]] = alias;
-  }
 };
 
 
@@ -30,8 +23,8 @@ ol.parser.XML.prototype.readNode = function(node, obj) {
   if (!obj) {
     obj = {};
   }
-  var group = this.readers[node.namespaceURI ?
+  var group = this.readers[node.namespaceURI] ||
-      this.namespaceAlias[node.namespaceURI] : this.defaultPrefix];
+      this.readers[this.defaultNamespaceURI];
   if (group) {
     var local = node.localName || node.nodeName.split(':').pop();
     var reader = group[local] || group['*'];