/// <summary>
/// Called internally to execute the activity.
/// </summary>
/// <param name="client">The Cadence client.</param>
/// <param name="args">The encoded activity arguments.</param>
/// <returns>Thye activity results.</returns>
internal async Task <byte[]> OnRunAsync(CadenceClient client, byte[] args)
{
Covenant.Requires <ArgumentNullException>(client != null);
if (IsLocal)
{
return(await RunAsync(args));
}
else
{
// Capture the activity information.
var reply = (ActivityGetInfoReply)(await Client.CallProxyAsync(
new ActivityGetInfoRequest()
{
ContextId = ContextId.Value,
}));
reply.ThrowOnError();
ActivityTask = reply.Info.ToPublic();
// Track the activity.
var activityKey = new ActivityKey(client, ContextId.Value);
try
{
lock (syncLock)
{
idToActivity[activityKey] = this;
}
return(await RunAsync(args));
}
finally
{
lock (syncLock)
{
idToActivity.Remove(activityKey);
}
}
}
}
/// <summary>
/// Called internally to initialize the activity.
/// </summary>
/// <param name="client">The associated client.</param>
/// <param name="activityType">Specifies the target activity type.</param>
/// <param name="activityMethod">Specifies the target activity method.</param>
/// <param name="dataConverter">Specifies the data converter to be used for parameter and result serilization.</param>
/// <param name="contextId">The activity's context ID or <c>null</c> for local activities.</param>
internal void Initialize(CadenceClient client, Type activityType, MethodInfo activityMethod, IDataConverter dataConverter, long?contextId)
{
Covenant.Requires <ArgumentNullException>(client != null, nameof(client));
Covenant.Requires <ArgumentNullException>(activityType != null, nameof(activityType));
Covenant.Requires <ArgumentNullException>(activityMethod != null, nameof(activityMethod));
Covenant.Requires <ArgumentNullException>(dataConverter != null, nameof(dataConverter));
CadenceHelper.ValidateActivityImplementation(activityType);
var activityTask = new ActivityTask()
{
// $todo(jefflill): Need to initialize these properties.
};
this.Client = client;
this.ActivityTask = activityTask;
this.Activity = new Activity(this);
this.activityType = activityType;
this.activityMethod = activityMethod;
this.dataConverter = dataConverter;
this.ContextId = contextId;
this.CancellationTokenSource = new CancellationTokenSource();
this.CancellationToken = CancellationTokenSource.Token;
}