Add Insert, Update and Delete writers

This change also adds some type annotations for better type checking, introduces different write options for writing transactions and queries, and provides new writeGetFeature and writeTransaction methods.
2013-12-06 10:57:58 +01:00
parent f539eb140f
commit b3b9add06e
5 changed files with 324 additions and 66 deletions
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -595,6 +595,32 @@
 *     calculations.
 */

+/**
+ * @typedef {Object} ol.parser.WFSWriteGetFeatureOptions
+ * @property {string} featureNS The namespace URI used for features.
+ * @property {string} featurePrefix The prefix for the feature namespace.
+ * @property {Array.<string>} featureTypes The feature type names.
+ * @property {string|undefined} srsName SRS name. No srsName attribute will be
+ *     set on geometries when this is not provided.
+ * @property {string|undefined} handle Handle.
+ * @property {string|undefined} outputFormat Output format.
+ * @property {Array.<Object>} nativeElements Native elements. Currently not
+ *     supported.
+ * @property {number} maxFeatures Maximum number of features to fetch.
+ */
+
+/**
+ * @typedef {Object} ol.parser.WFSWriteTransactionOptions
+ * @property {string} featureNS The namespace URI used for features.
+ * @property {string} featurePrefix The prefix for the feature namespace.
+ * @property {string} featureType The feature type name.
+ * @property {string|undefined} srsName SRS name. No srsName attribute will be
+ *     set on geometries when this is not provided.
+ * @property {string|undefined} handle Handle.
+ * @property {Array.<Object>} nativeElements Native elements. Currently not
+ *     supported.
+ */
+
 /**
 * @typedef {Object} ol.source.BingMapsOptions
 * @property {string|undefined} culture Culture code. Default is `en-us`.
--- a/src/ol/parser/ogc/wfsparser_v1.js
+++ b/src/ol/parser/ogc/wfsparser_v1.js
@@ -1,31 +1,22 @@
 goog.provide('ol.parser.ogc.WFS_v1');
+goog.require('goog.asserts');
 goog.require('goog.dom.xml');
+goog.require('ol.expr.Call');
+goog.require('ol.expr.Identifier');
+goog.require('ol.expr.Literal');
+goog.require('ol.geom.Geometry');
 goog.require('ol.parser.XML');


-/**
- * @typedef {{featureNS: string,
-              featurePrefix: string,
-              featureTypes: Array.<string>,
-              handle: string,
-              outputFormat: string,
-              nativeElements: Array.<{
-                vendorId: string,
-                safeToIgnore: boolean,
-                value: string
-              }>,
-              maxFeatures: number}}
- */
-ol.parser.WFSWriteOptions;
-
-

 /**
 * @constructor
 * @extends {ol.parser.XML}
+ * @param {Object=} opt_options Options which will be set on this object.
 */
-ol.parser.ogc.WFS_v1 = function() {
+ol.parser.ogc.WFS_v1 = function(opt_options) {
  this.defaultNamespaceURI = 'http://www.opengis.net/wfs';
+
  // TODO set errorProperty
  this.readers = {};
  this.readers[this.defaultNamespaceURI] = {
@@ -36,8 +27,13 @@ ol.parser.ogc.WFS_v1 = function() {
  };
  this.writers = {};
  this.writers[this.defaultNamespaceURI] = {
+    /**
+     * @param {ol.parser.WFSWriteGetFeatureOptions} options Options.
+     * @return {{node: Node,
+     *           options: ol.parser.WFSWriteGetFeatureOptions}} Object.
+     * @this {ol.parser.XML}
+     */
    'GetFeature': function(options) {
-      options = /** @type {ol.parser.WFSWriteOptions} */(options);
      var node = this.createElementNS('wfs:GetFeature');
      node.setAttribute('service', 'WFS');
      node.setAttribute('version', this.version);
@@ -61,29 +57,41 @@ ol.parser.ogc.WFS_v1 = function() {
          'xsi:schemaLocation', this.schemaLocation);
      return {node: node, options: options};
    },
+    /**
+     * @param {{inserts: Array.<ol.Feature>,
+     *          updates: Array.<ol.Feature>,
+     *          deletes: Array.<ol.Feature>,
+     *          options: ol.parser.WFSWriteTransactionOptions}} obj Object.
+     * @return {Element} Node.
+     * @this {ol.parser.XML}
+     */
    'Transaction': function(obj) {
-      obj = obj || {};
-      var options = /** {ol.parser.WFSWriteOptions} */(obj.options || {});
+      var options = obj.options;
+      this.setFeatureType(options.featureType);
+      this.setFeatureNS(options.featureNS);
+      if (goog.isDef(options.srsName)) {
+        this.setSrsName(options.srsName);
+      }
      var node = this.createElementNS('wfs:Transaction');
      node.setAttribute('service', 'WFS');
      node.setAttribute('version', this.version);
      if (goog.isDef(options.handle)) {
        node.setAttribute('handle', options.handle);
      }
-      var i, ii;
-      var features = obj.features;
-      if (goog.isDefAndNotNull(features)) {
-        // TODO implement multi option for geometry types
-        var name, feature;
-        for (i = 0, ii = features.length; i < ii; ++i) {
-          feature = features[i];
-          // TODO Update (use feature.getOriginal())
-          // TODO Insert and Delete
-          if (goog.isDef(name)) {
-            this.writeNode(name, {
-              feature: feature,
-              options: options
-            }, null, node);
+      var i, ii, features, feature;
+      var operations = {
+        'Insert': obj.inserts,
+        'Update': obj.updates,
+        'Delete': obj.deletes
+      };
+      for (var name in operations) {
+        features = operations[name];
+        if (!goog.isNull(features)) {
+          // TODO implement multi option for geometry types
+          for (i = 0, ii = features.length; i < ii; ++i) {
+            feature = features[i];
+            this.writeNode(name, {feature: feature, options: options}, null,
+                node);
          }
        }
      }
@@ -94,12 +102,147 @@ ol.parser.ogc.WFS_v1 = function() {
      }
      return node;
    },
+    /**
+     * @param {{vendorId: string, safeToIgnore: boolean, value: string}}
+     * nativeElement Native element.
+     * @return {Node} Node.
+     * @this {ol.parser.XML}
+     */
    'Native': function(nativeElement) {
      var node = this.createElementNS('wfs:Native');
      node.setAttribute('vendorId', nativeElement.vendorId);
      node.setAttribute('safeToIgnore', nativeElement.safeToIgnore);
      node.appendChild(this.createTextNode(nativeElement.value));
      return node;
+    },
+    /**
+     * @param {{feature: ol.Feature,
+     *          options: ol.parser.WFSWriteTransactionOptions}} obj Object.
+     * @return {Element} Node.
+     * @this {ol.parser.XML}
+     */
+    'Insert': function(obj) {
+      var feature = obj.feature;
+      var options = obj.options;
+      var node = this.createElementNS('wfs:Insert');
+      if (goog.isDef(options) && goog.isDef(options.handle)) {
+        this.setAttributeNS(node, this.defaultNamespaceURI, 'handle',
+            options.handle);
+      }
+      if (goog.isDef(options.srsName)) {
+        this.setSrsName(options.srsName);
+      }
+      this.writeNode('_typeName', feature, options.featureNS, node);
+      return node;
+    },
+    /**
+     * @param {{feature: ol.Feature,
+     *          options: ol.parser.WFSWriteTransactionOptions}} obj Object.
+     * @return {Element} Node.
+     * @this {ol.parser.XML}
+     */
+    'Update': function(obj) {
+      var feature = obj.feature;
+      var options = obj.options;
+      var node = this.createElementNS('wfs:Update');
+      this.setAttributeNS(node, this.defaultNamespaceURI, 'typeName',
+          (goog.isDef(options.featureNS) ? options.featurePrefix + ':' : '') +
+          options.featureType);
+      if (goog.isDef(options.handle)) {
+        this.setAttributeNS(node, this.defaultNamespaceURI, 'handle',
+            options.handle);
+      }
+      if (goog.isDef(options.featureNS)) {
+        node.setAttribute('xmlns:' + options.featurePrefix, options.featureNS);
+      }
+
+      // add in fields
+      var original = feature.getOriginal();
+      var originalAttributes = goog.isNull(original) ?
+          undefined : original.getAttributes();
+      var attributes = feature.getAttributes();
+      var attribute;
+      for (var key in attributes) {
+        attribute = attributes[key];
+        // TODO Only add geometries whose values have changed
+        if (goog.isDef(attribute) && (attribute instanceof ol.geom.Geometry ||
+            (!goog.isDef(originalAttributes) ||
+            attribute != originalAttributes[key]))) {
+          this.writeNode('Property', {name: key, value: attribute}, null, node);
+        }
+      }
+
+      // add feature id filter
+      var fid = feature.getId();
+      goog.asserts.assert(goog.isDef(fid));
+      this.writeNode('Filter', new ol.expr.Call(new ol.expr.Identifier(
+          ol.expr.functions.FID), [new ol.expr.Literal(fid)]),
+          'http://www.opengis.net/ogc', node);
+
+      return node;
+    },
+    'Property': function(obj) {
+      var node = this.createElementNS('wfs:Property');
+      this.writeNode('Name', obj.name, null, node);
+      if (!goog.isNull(obj.value)) {
+        this.writeNode('Value', obj.value, null, node);
+      }
+      return node;
+    },
+    /**
+     * @param {string} name Name.
+     * @return {Element} Node.
+     * @this {ol.parser.XML}
+     */
+    'Name': function(name) {
+      var node = this.createElementNS('wfs:Name');
+      node.appendChild(this.createTextNode(name));
+      return node;
+    },
+    /**
+     * @param {string|ol.geom.Geometry} obj Object.
+     * @return {Element} Node.
+     * @this {ol.parser.XML}
+     */
+    'Value': function(obj) {
+      var node;
+      if (obj instanceof ol.geom.Geometry) {
+        node = this.createElementNS('wfs:Value');
+        node.appendChild(
+            this.getFilterParser().getGmlParser().writeGeometry(obj));
+      } else {
+        goog.asserts.assertString(obj);
+        node = this.createElementNS('wfs:Value');
+        node.appendChild(this.createTextNode(obj));
+      }
+      return node;
+    },
+    /**
+     * @param {{feature: ol.Feature,
+     *          options: ol.parser.WFSWriteTransactionOptions}} obj Object.
+     * @return {Element} Node.
+     * @this {ol.parser.ogc.GML}
+     */
+    'Delete': function(obj) {
+      var feature = obj.feature;
+      var options = obj.options;
+      var node = this.createElementNS('wfs:Delete');
+      this.setAttributeNS(node, this.defaultNamespaceURI, 'typeName',
+          (goog.isDef(options.featureNS) ? options.featurePrefix + ':' : '') +
+          options.featureType);
+      if (goog.isDef(options.handle)) {
+        this.setAttributeNS(node, options.defaultNamespaceURI, 'handle',
+            options.handle);
+      }
+      if (goog.isDef(options.featureNS)) {
+        node.setAttribute('xmlns:' + options.featurePrefix, options.featureNS);
+      }
+      var fid = feature.getId();
+      goog.asserts.assert(goog.isDef(fid));
+      this.writeNode('Filter', new ol.expr.Call(new ol.expr.Identifier(
+          ol.expr.functions.FID), [new ol.expr.Literal(fid)]),
+          'http://www.opengis.net/ogc', node);
+      return node;
    }
  };
  goog.base(this);
@@ -204,13 +347,27 @@ ol.parser.ogc.WFS_v1.prototype.read = function(data) {


 /**
- * @param {Array.<ol.Feature>} features The features to write out.
- * @param {ol.parser.WFSWriteOptions} options Write options.
+ * @param {ol.parser.WFSWriteGetFeatureOptions} options Options.
+ * @return {string} A serialized WFS GetFeature query.
+ */
+ol.parser.ogc.WFS_v1.prototype.writeGetFeature = function(options) {
+  var root = this.writers[this.defaultNamespaceURI]['GetFeature']
+      .call(this, options);
+  return this.serialize(root);
+};
+
+
+/**
+ * @param {Array.<ol.Feature>} inserts The features to insert.
+ * @param {Array.<ol.Feature>} updates The features to update.
+ * @param {Array.<ol.Feature>} deletes The features to delete.
+ * @param {ol.parser.WFSWriteTransactionOptions} options Write options.
 * @return {string} A serialized WFS transaction.
 */
-ol.parser.ogc.WFS_v1.prototype.write = function(features, options) {
-  var root = this.writeNode('Transaction', {features: features,
-    options: options});
+ol.parser.ogc.WFS_v1.prototype.writeTransaction =
+    function(inserts, updates, deletes, options) {
+  var root = this.writeNode('Transaction', {inserts: inserts,
+    updates: updates, deletes: deletes, options: options});
  this.setAttributeNS(
      root, 'http://www.w3.org/2001/XMLSchema-instance',
      'xsi:schemaLocation', this.schemaLocation);