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Improve Windows and Linux error handling (#12)

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* Improve windows and linux error handeling

* Send proper error code from windows for write command

* Fix Linux

* Fix getConnectedDevices on windows

---------

Co-authored-by: fotidim <fdimanidis@gmail.com>
Co-authored-by: fotidim <foti@navideck.com>
This commit is contained in:
Rohit Sangwan
2024-02-17 00:06:36 +05:30
committed by GitHub
parent 35d4737f3a
commit 663bc76dfe
5 changed files with 129 additions and 59 deletions
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lib/src/universal_ble_linux/universal_ble_linux.dart
+48 -13
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@@ -3,6 +3,7 @@ import 'dart:typed_data';
import 'package:bluez/bluez.dart';
import 'package:collection/collection.dart';
import 'package:flutter/services.dart';
import 'package:universal_ble/src/models/model_exports.dart';
import 'package:universal_ble/src/universal_ble_platform_interface.dart';
@@ -179,9 +180,16 @@ class UniversalBleLinux extends UniversalBlePlatform {
@override
Future<Uint8List> readValue(
String deviceId, String service, String characteristic) async {
var c = _getCharacteristic(deviceId, service, characteristic);
var data = await c.readValue();
return Uint8List.fromList(data);
try {
var c = _getCharacteristic(deviceId, service, characteristic);
var data = await c.readValue();
return Uint8List.fromList(data);
} on BlueZFailedException catch (e) {
throw PlatformException(
code: e.errorCode ?? "ReadFailed",
message: e.message,
);
}
}
@override
@@ -191,16 +199,23 @@ class UniversalBleLinux extends UniversalBlePlatform {
String characteristic,
Uint8List value,
BleOutputProperty bleOutputProperty) async {
var c = _getCharacteristic(deviceId, service, characteristic);
if (bleOutputProperty == BleOutputProperty.withResponse) {
await c.writeValue(
value,
type: BlueZGattCharacteristicWriteType.request,
);
} else {
await c.writeValue(
value,
type: BlueZGattCharacteristicWriteType.command,
try {
var c = _getCharacteristic(deviceId, service, characteristic);
if (bleOutputProperty == BleOutputProperty.withResponse) {
await c.writeValue(
value,
type: BlueZGattCharacteristicWriteType.request,
);
} else {
await c.writeValue(
value,
type: BlueZGattCharacteristicWriteType.command,
);
}
} on BlueZFailedException catch (e) {
throw PlatformException(
code: e.errorCode ?? "WriteFailed",
message: e.message,
);
}
}
@@ -486,3 +501,23 @@ extension on BlueZGattCharacteristicFlag {
};
}
}
extension on BlueZFailedException {
/// Extract error code from message and parse into decimal
/// example: 'Operation failed with ATT error: 0x90' => 144
String? get errorCode {
try {
RegExp regExp = RegExp(r'0x\w+');
Match? match = regExp.firstMatch(message);
String? code = match?.group(0);
if (code == null) return null;
int? decimalValue = int.tryParse(
code.replaceFirst('0x', ''),
radix: 16,
);
return decimalValue?.toString() ?? code;
} catch (e) {
return null;
}
}
}