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Refactor ol.format.GeoJSON to implement ol.format.IReader

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This commit is contained in:
Tom Payne
2013-11-09 00:02:26 +01:00
parent 2d7c26e3e5
commit 5bca792288
3 changed files with 17 additions and 22 deletions
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2
examples/geojson.js
View File

@@ -44,7 +44,7 @@ var styleFunction = function(feature) {
};
var vectorSource = new ol.source.Vector();
ol.format.GeoJSON.readObject({
new ol.format.GeoJSON().readObject({
'type': 'FeatureCollection',
'features': [
{

27
src/ol/format/geojson/geojsonformat.js
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@@ -7,6 +7,7 @@ goog.provide('ol.format.GeoJSON');
goog.require('goog.asserts');
goog.require('goog.json');
goog.require('ol.Feature');
goog.require('ol.format.IReader');
goog.require('ol.geom.LineString');
goog.require('ol.geom.MultiLineString');
goog.require('ol.geom.MultiPolygon');
@@ -17,6 +18,7 @@ goog.require('ol.geom.Polygon');
/**
* @constructor
* @implements {ol.format.IReader}
*/
ol.format.GeoJSON = function() {
};
@@ -124,30 +126,21 @@ ol.format.GeoJSON.readFeatureCollection_ = function(object, callback, opt_obj) {
/**
* @param {GeoJSONObject} object Object.
* @param {function(this: S, ol.Feature): T} callback Callback.
* @param {S=} opt_obj Scope.
* @return {T} Callback result.
* @template S,T
* @inheritDoc
*/
ol.format.GeoJSON.readObject = function(object, callback, opt_obj) {
var objectReader = ol.format.GeoJSON.OBJECT_READERS_[object.type];
ol.format.GeoJSON.prototype.readObject = function(object, callback, opt_obj) {
var geoJSONObject = /** @type {GeoJSONObject} */ (object);
var objectReader = ol.format.GeoJSON.OBJECT_READERS_[geoJSONObject.type];
goog.asserts.assert(goog.isDef(objectReader));
return objectReader(object, callback, opt_obj);
return objectReader(geoJSONObject, callback, opt_obj);
};
/**
* @param {string} string String.
* @param {function(ol.Feature): T} callback Callback.
* @param {S=} opt_obj Scope.
* @return {T} Callback result.
* @template S,T
* @inheritDoc
*/
ol.format.GeoJSON.readString = function(string, callback, opt_obj) {
var object = goog.json.parse(string);
return ol.format.GeoJSON.readObject(
/** @type {GeoJSONObject} */ (object), callback);
ol.format.GeoJSON.prototype.readString = function(string, callback, opt_obj) {
return this.readObject(goog.json.parse(string), callback, opt_obj);
};

10
test/spec/ol/format/geojsonformat.test.js
View File

@@ -47,10 +47,12 @@ describe('ol.format.GeoJSON', function() {
'features': [pointGeoJSON, lineStringGeoJSON, polygonGeoJSON]
};
var format = new ol.format.GeoJSON();
describe('readObject', function() {
it('can read a single point feature', function() {
var feature = ol.format.GeoJSON.readObject(pointGeoJSON, function(f) {
var feature = format.readObject(pointGeoJSON, function(f) {
return f;
});
expect(feature).to.be.an(ol.Feature);
@@ -61,7 +63,7 @@ describe('ol.format.GeoJSON', function() {
});
it('can read a single line string feature', function() {
var feature = ol.format.GeoJSON.readObject(lineStringGeoJSON,
var feature = format.readObject(lineStringGeoJSON,
function(f) {
return f;
});
@@ -75,7 +77,7 @@ describe('ol.format.GeoJSON', function() {
});
it('can read a single polygon feature', function() {
var feature = ol.format.GeoJSON.readObject(polygonGeoJSON, function(f) {
var feature = format.readObject(polygonGeoJSON, function(f) {
return f;
});
expect(feature).to.be.an(ol.Feature);
@@ -90,7 +92,7 @@ describe('ol.format.GeoJSON', function() {
it('can read a feature collection', function() {
var features = [];
ol.format.GeoJSON.readObject(featureCollectionGeoJSON, function(f) {
format.readObject(featureCollectionGeoJSON, function(f) {
features.push(f);
});
expect(features).to.have.length(3);