167 lines
3.4 KiB
JavaScript
167 lines
3.4 KiB
JavaScript
goog.provide('ol.format.JSONFeature');
|
|
|
|
goog.require('goog.asserts');
|
|
goog.require('goog.json');
|
|
goog.require('ol.BrowserFeature');
|
|
goog.require('ol.format.Feature');
|
|
goog.require('ol.format.FormatType');
|
|
|
|
|
|
|
|
/**
|
|
* @classdesc
|
|
* Abstract base class; normally only used for creating subclasses and not
|
|
* instantiated in apps.
|
|
* Base class for JSON feature formats.
|
|
*
|
|
* @constructor
|
|
* @extends {ol.format.Feature}
|
|
*/
|
|
ol.format.JSONFeature = function() {
|
|
goog.base(this);
|
|
};
|
|
goog.inherits(ol.format.JSONFeature, ol.format.Feature);
|
|
|
|
|
|
/**
|
|
* @param {Document|Node|Object|string} source Source.
|
|
* @private
|
|
* @return {Object} Object.
|
|
*/
|
|
ol.format.JSONFeature.prototype.getObject_ = function(source) {
|
|
if (goog.isObject(source)) {
|
|
return source;
|
|
} else if (goog.isString(source)) {
|
|
var object;
|
|
if (ol.BrowserFeature.HAS_JSON_PARSE) {
|
|
object = /** @type {Object} */ (JSON.parse(source));
|
|
} else {
|
|
object = goog.json.parse(source);
|
|
}
|
|
return goog.isDef(object) ? object : null;
|
|
} else {
|
|
goog.asserts.fail();
|
|
return null;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.getType = function() {
|
|
return ol.format.FormatType.JSON;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.readFeature = function(source) {
|
|
return this.readFeatureFromObject(this.getObject_(source));
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.readFeatures = function(source) {
|
|
return this.readFeaturesFromObject(this.getObject_(source));
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Object} object Object.
|
|
* @protected
|
|
* @return {ol.Feature} Feature.
|
|
*/
|
|
ol.format.JSONFeature.prototype.readFeatureFromObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @param {Object} object Object.
|
|
* @protected
|
|
* @return {Array.<ol.Feature>} Features.
|
|
*/
|
|
ol.format.JSONFeature.prototype.readFeaturesFromObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.readGeometry = function(source) {
|
|
return this.readGeometryFromObject(this.getObject_(source));
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Object} object Object.
|
|
* @protected
|
|
* @return {ol.geom.Geometry} Geometry.
|
|
*/
|
|
ol.format.JSONFeature.prototype.readGeometryFromObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.readProjection = function(source) {
|
|
return this.readProjectionFromObject(this.getObject_(source));
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Object} object Object.
|
|
* @protected
|
|
* @return {ol.proj.Projection} Projection.
|
|
*/
|
|
ol.format.JSONFeature.prototype.readProjectionFromObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeFeature = function(feature) {
|
|
return this.writeFeatureObject(feature);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature.
|
|
* @protected
|
|
* @return {Object} Object.
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeFeatureObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeFeatures = function(features) {
|
|
return this.writeFeaturesObject(features);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<ol.Feature>} features Features.
|
|
* @protected
|
|
* @return {Object} Object.
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeFeaturesObject = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeGeometry = function(geometry) {
|
|
return this.writeGeometryObject(geometry);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.geom.Geometry} geometry Geometry.
|
|
* @protected
|
|
* @return {Object} Object.
|
|
*/
|
|
ol.format.JSONFeature.prototype.writeGeometryObject = goog.abstractMethod;
|