blob: f34b7bb58f403d5efe281f8d0f7563cf90f53c5e [file] [log] [blame]
// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:convert';
import '';
import '../entity_codec.dart';
import 'street_location_entity_data.dart';
export 'street_location_entity_data.dart';
/// Translates Entity source data to and from the structured
/// [StreetLocationEntityData].
class StreetLocationEntityCodec extends EntityCodec<StreetLocationEntityData> {
/// Create an instance of [StreetLocationEntityCodec].
: super(
type: 'com.fuchsia.location.streetLocation',
encode: _encode,
decode: _decode,
/// Encodes [StreetLocationEntityData] into a [String].
String _encode(StreetLocationEntityData data) {
assert(data != null);
Map<String, Object> map = <String, Object>{
'location': <String, String>{
'streetAddress': data.streetAddress,
'locality': data.locality,
return json.encode(map);
/// Decodes [String] into a structured [StreetLocationEntityCodec].
StreetLocationEntityData _decode(String data) {
if (data == null || data.isEmpty || data == 'null') {
throw FormatException('Entity data is null: "$data"');
// TODO(MS-1428): use a schema to validate decoded value.
dynamic map = json.decode(data);
String streetAddress;
String locality;
try {
dynamic location = map['location'];
streetAddress = location['streetAddress'];
locality = location['locality'];
// ignore: avoid_catches_without_on_clauses
} catch (err, stackTrace) {
'Exception occured during JSON destructuring: \n$err\n$stackTrace');
throw FormatException('Invalid JSON data: "$map"');
return StreetLocationEntityData(
streetAddress: streetAddress,
locality: locality,