Add ol.format.JSON

src/ol/format/jsonformat.exports

@@ -0,0 +1,8 @@
+@exportProperty ol.format.JSON.prototype.readFeature
+@exportProperty ol.format.JSON.prototype.readFeatures
+@exportProperty ol.format.JSON.prototype.readFeaturesAsync
+@exportProperty ol.format.JSON.prototype.readGeometry
+@exportProperty ol.format.JSON.prototype.readProjection
+@exportProperty ol.format.JSON.prototype.writeFeature
+@exportProperty ol.format.JSON.prototype.writeFeatures
+@exportProperty ol.format.JSON.prototype.writeGeometry

src/ol/format/jsonformat.js

@@ -0,0 +1,155 @@
+goog.provide('ol.format.JSON');
+
+goog.require('goog.asserts');
+goog.require('goog.json');
+goog.require('ol.format.Format');
+goog.require('ol.format.FormatType');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.format.Format}
+ */
+ol.format.JSON = function() {
+  goog.base(this);
+};
+goog.inherits(ol.format.JSON, ol.format.Format);
+
+
+/**
+ * @param {Document|Node|Object|string} source Source.
+ * @private
+ * @return {Object} Object.
+ */
+ol.format.JSON.prototype.getObject_ = function(source) {
+  if (goog.isObject(source)) {
+    return source;
+  } else if (goog.isString(source)) {
+    var object = goog.json.parse(source);
+    return goog.isDef(object) ? object : null;
+  } else {
+    goog.asserts.fail();
+    return null;
+  }
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.getType = function() {
+  return ol.format.FormatType.JSON;
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.readFeature = function(source) {
+  return this.readFeatureFromObject(this.getObject_(source));
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.readFeatures = function(source) {
+  return this.readFeaturesFromObject(this.getObject_(source));
+};
+
+
+/**
+ * @param {Object} object Object.
+ * @protected
+ * @return {ol.Feature} Feature.
+ */
+ol.format.JSON.prototype.readFeatureFromObject = goog.abstractMethod;
+
+
+/**
+ * @param {Object} object Object.
+ * @protected
+ * @return {Array.<ol.Feature>} Features.
+ */
+ol.format.JSON.prototype.readFeaturesFromObject = goog.abstractMethod;
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.readGeometry = function(source) {
+  return this.readGeometryFromObject(this.getObject_(source));
+};
+
+
+/**
+ * @param {Object} object Object.
+ * @protected
+ * @return {ol.geom.Geometry} Geometry.
+ */
+ol.format.JSON.prototype.readGeometryFromObject = goog.abstractMethod;
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.readProjection = function(source) {
+  return this.readProjectionFromObject(this.getObject_(source));
+};
+
+
+/**
+ * @param {Object} object Object.
+ * @protected
+ * @return {ol.proj.Projection} Projection.
+ */
+ol.format.JSON.prototype.readProjectionFromObject = goog.abstractMethod;
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.writeFeature = function(feature) {
+  return this.writeFeatureObject(feature);
+};
+
+
+/**
+ * @param {ol.Feature} feature Feature.
+ * @protected
+ * @return {Object} Object.
+ */
+ol.format.JSON.prototype.writeFeatureObject = goog.abstractMethod;
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.writeFeatures = function(features) {
+  return this.writeFeaturesObject(features);
+};
+
+
+/**
+ * @param {Array.<ol.Feature>} features Features.
+ * @protected
+ * @return {Object} Object.
+ */
+ol.format.JSON.prototype.writeFeaturesObject = goog.abstractMethod;
+
+
+/**
+ * @inheritDoc
+ */
+ol.format.JSON.prototype.writeGeometry = function(geometry) {
+  return this.writeGeometryObject(geometry);
+};
+
+
+/**
+ * @param {ol.geom.Geometry} geometry Geometry.
+ * @protected
+ * @return {Object} Object.
+ */
+ol.format.JSON.prototype.writeGeometryObject = goog.abstractMethod;