/// <inheritdoc/>
public async Task HandleDeviceTwinEventAsync(DeviceTwinEvent ev)
{
if (ev.Handled)
{
return;
}
if (string.IsNullOrEmpty(ev.Twin.Id) || string.IsNullOrEmpty(ev.Twin.ModuleId))
{
return;
}
var type = ev.Twin.Properties?.Reported.GetValueOrDefault <string>(
TwinProperty.Type, null);
if ((ev.Event != DeviceTwinEventType.Delete && ev.IsPatch) || string.IsNullOrEmpty(type))
{
try {
ev.Twin = await _iothub.GetAsync(ev.Twin.Id, ev.Twin.ModuleId);
ev.IsPatch = false;
type = ev.Twin.Properties?.Reported?.GetValueOrDefault <string>(
TwinProperty.Type, null);
}
catch (Exception ex) {
_logger.Verbose(ex, "Failed to materialize twin");
}
}
if (IdentityType.Discoverer.EqualsIgnoreCase(type))
{
var ctx = new RegistryOperationContextModel {
AuthorityId = ev.AuthorityId,
Time = ev.Timestamp
};
switch (ev.Event)
{
case DeviceTwinEventType.New:
break;
case DeviceTwinEventType.Create:
await _broker.NotifyAllAsync(l => l.OnDiscovererNewAsync(ctx,
ev.Twin.ToDiscovererRegistration(false).ToServiceModel()));
break;
case DeviceTwinEventType.Update:
await _broker.NotifyAllAsync(l => l.OnDiscovererUpdatedAsync(ctx,
ev.Twin.ToDiscovererRegistration(false).ToServiceModel()));
break;
case DeviceTwinEventType.Delete:
await _broker.NotifyAllAsync(l => l.OnDiscovererDeletedAsync(ctx,
DiscovererModelEx.CreateDiscovererId(
ev.Twin.Id, ev.Twin.ModuleId)));
break;
}
ev.Handled = true;
}
}
/// <inheritdoc/>
public async Task HandleDeviceTwinEventAsync(DeviceTwinEvent ev)
{
if (ev.Handled)
{
return;
}
if (string.IsNullOrEmpty(ev.Twin.Id))
{
return;
}
var type = ev.Twin.Tags.GetValueOrDefault <string>(
nameof(EntityRegistration.DeviceType), null);
if ((ev.Event != DeviceTwinEventType.Delete && ev.IsPatch) || string.IsNullOrEmpty(type))
{
try {
ev.Twin = await _iothub.GetAsync(ev.Twin.Id);
ev.IsPatch = false;
type = ev.Twin.Tags.GetValueOrDefault <string>(
nameof(EntityRegistration.DeviceType), null);
}
catch (Exception ex) {
_logger.Verbose(ex, "Failed to materialize twin");
}
}
if (IdentityType.Endpoint.EqualsIgnoreCase(type))
{
var ctx = new RegistryOperationContextModel {
AuthorityId = ev.AuthorityId,
Time = ev.Timestamp
};
switch (ev.Event)
{
case DeviceTwinEventType.New:
break;
case DeviceTwinEventType.Create:
await _broker.NotifyAllAsync(l => l.OnEndpointNewAsync(ctx,
ev.Twin.ToEndpointRegistration(false).ToServiceModel()));
break;
case DeviceTwinEventType.Update:
await _broker.NotifyAllAsync(l => l.OnEndpointUpdatedAsync(ctx,
ev.Twin.ToEndpointRegistration(false).ToServiceModel()));
break;
case DeviceTwinEventType.Delete:
await _broker.NotifyAllAsync(l => l.OnEndpointDeletedAsync(ctx,
ev.Twin.Id,
ev.Twin.ToEndpointRegistration(false).ToServiceModel()));
break;
}
ev.Handled = true;
}
}
/// <inheritdoc/>
public async Task HandleAsync(string deviceId, string moduleId,
byte[] payload, IDictionary <string, string> properties,
Func <Task> checkpoint)
{
if (_handlers.Count == 0)
{
return;
}
if (!properties.TryGetValue("opType", out var opType) ||
!properties.TryGetValue("operationTimestamp", out var ts))
{
return;
}
DateTime.TryParse(ts, out var timestamp);
if (timestamp + TimeSpan.FromSeconds(10) < DateTime.UtcNow)
{
// Drop twin events that are too far in our past.
_logger.Debug("Skipping {event} from {deviceId}({moduleId}) from {ts}.",
opType, deviceId, moduleId, timestamp);
return;
}
var twin = Try.Op(() => _serializer.Deserialize <DeviceTwinModel>(payload));
if (twin == null)
{
return;
}
twin.ModuleId = moduleId;
twin.Id = deviceId;
var operation = GetOperation(opType);
if (operation == null)
{
return;
}
var ev = new DeviceTwinEvent {
Twin = twin,
Event = operation.Value,
IsPatch = true,
Handled = false,
AuthorityId = null, // TODO
Timestamp = timestamp
};
foreach (var handler in _handlers)
{
await handler.HandleDeviceTwinEventAsync(ev);
}
}
/// <summary>
/// IoTHubによるデバイスツイン更新EventDataを変換する
/// </summary>
/// <param name="eventData">EventData</param>
/// <returns>RmsEvent</returns>
/// <remarks>
/// - EventDataがnullの場合はArgumentNullExceptionを投げる
/// - EventData#Bodyをデシリアライズできない場合ArgumentExceptionを投げる
/// - EdgeIDをSystemPropertiesから取得できない場合はFormatExceptionを投げる
/// </remarks>
private RmsEvent ConvertTwinChanged(EventData eventData)
{
// Body以下に必要な情報が格納されている
string body = Encoding.UTF8.GetString(eventData.Body.Array, eventData.Body.Offset, eventData.Body.Count);
// Bodyをデシリアライズして必要な情報を抽出
DeviceTwinEvent deviceTwinEvent = DeviceTwinEvent.DeserializeIfInvalidThrowEx(body);
return(new RmsEvent()
{
//// EdgeIDを取得
EdgeId = DeviceTwinEvent.GetEdgeId(eventData),
//// MessageId
//// MessageDataTime
/// 他のDispatcherと合わせるため、この時点ではBodyは文字列にしておく。
MessageBody = JsonConvert.SerializeObject(deviceTwinEvent.Reported)
});
}
