public static Task Execute <T, TRepository>(this AggregateRootCommandExecutor <T, TRepository> executor, Envelope envelope, Func <IKey, T> handler)
where T : AggregateRoot
where TRepository : IRepository <T, IKey>
{
return(executor.Execute(() =>
{
IKey userKey;
if (!envelope.Metadata.TryGet("UserKey", out userKey))
{
if (envelope.Metadata.TryGet("UserId", out string userId))
{
userKey = StringKey.Create(userId, "User");
}
else
{
userKey = StringKey.Empty("User");
}
}
T model = handler(userKey);
foreach (IEvent item in model.Events)
{
if (item is UserEvent payload)
{
payload.UserKey = userKey;
}
}
return model;
}));
}
public void Load(IReadOnlyKeyValueCollection storage, object output)
{
// TODO: Not TryGet, UserKey is required!
if (output is UserEvent payload)
{
if (storage.TryGet(Name.UserKey, out IKey userKey))
{
payload.UserKey = userKey;
}
else
{
payload.UserKey = StringKey.Empty("User");
}
}
}
public bool TryGet <T>(string key, out T value)
{
if (storage.TryGetValue(key, out object target))
{
if (target == null)
{
value = default(T);
return(true);
}
log.Debug($"Get: Key: '{key}', RequiredType: '{typeof(T).FullName}', ActualType: '{target.GetType().FullName}'.");
if (target is T targetValue)
{
value = targetValue;
return(true);
}
if (typeof(T) == typeof(int) && target.GetType() == typeof(long))
{
value = (T)(object)(int)(long)target;
return(true);
}
if (typeof(T) == typeof(decimal) && target.GetType() == typeof(double))
{
value = (T)(object)(decimal)(double)target;
return(true);
}
if (typeof(T) == typeof(IKey) && target is JsonObject json)
{
string type = (string)json["Type"];
if (json.TryGetValue("Guid", out object rawGuid))
{
if (rawGuid == null)
{
value = (T)(object)GuidKey.Empty(type);
}
else
{
value = (T)(object)GuidKey.Create(Guid.Parse((string)rawGuid), type);
}
return(true);
}
else if (json.TryGetValue("Identifier", out object rawIdentifier))
{
if (rawIdentifier == null)
{
value = (T)(object)StringKey.Empty(type);
}
else
{
value = (T)(object)StringKey.Create((string)rawIdentifier, type);
}
return(true);
}
}
if (typeof(T) == typeof(Color) && target is string rawColor)
{
byte[] parts = rawColor.Split(new char[] { ';' }).Select(p => Byte.Parse(p)).ToArray();
value = (T)(object)Color.FromArgb(parts[0], parts[1], parts[2], parts[3]);
log.Debug($"Get: Color: '{value}'.");
return(true);
}
if (typeof(T) == typeof(Price) && target is JsonObject priceJson)
{
log.Debug($"Get: Price value type: '{priceJson["Value"].GetType().FullName}'.");
decimal priceValue = (decimal)(double)priceJson["Value"];
string priceCurrency = (string)priceJson["Currency"];
value = (T)(object)new Price(priceValue, priceCurrency);
return(true);
}
if (typeof(T) == typeof(DateTime) && target is string rawDateTime)
{
if (DateTime.TryParse(rawDateTime, out DateTime dateTime))
{
value = (T)(object)dateTime;
return(true);
}
else
{
log.Warning($"Get: Key: '{key}' not parseable to datetime from value '{rawDateTime}'.");
value = default(T);
return(false);
}
}
}
log.Debug($"Get: Key: '{key}' NOT FOUND.");
value = default(T);
return(false);
}
public bool TryGet <T>(string key, out T value)
{
if (storage.TryGetValue(key, out object target))
{
if (target == null)
{
value = default(T);
return(true);
}
log.Debug($"Get: Key: '{key}', RequiredType: '{typeof(T).FullName}', ActualType: '{target.GetType().FullName}'.");
if (target is T targetValue)
{
value = targetValue;
return(true);
}
JsonElement element = (JsonElement)target;
if (typeof(T) == typeof(string))
{
value = (T)(object)element.GetString();
return(true);
}
if (typeof(T) == typeof(int))
{
value = (T)(object)element.GetInt32();
return(true);
}
if (typeof(T) == typeof(long))
{
value = (T)(object)element.GetInt64();
return(true);
}
if (typeof(T) == typeof(decimal))
{
value = (T)(object)element.GetDecimal();
return(true);
}
if (typeof(T) == typeof(double))
{
value = (T)(object)element.GetDouble();
return(true);
}
if (typeof(T) == typeof(bool))
{
value = (T)(object)element.GetBoolean();
return(true);
}
if (typeof(T) == typeof(IKey))
{
if (element.ValueKind == JsonValueKind.Null)
{
value = default(T);
return(true);
}
string type = element.GetProperty("Type").GetString();
if (element.TryGetProperty("Guid", out JsonElement rawGuid))
{
string rawGuidValue = rawGuid.GetString();
if (rawGuidValue == null)
{
value = (T)(object)GuidKey.Empty(type);
}
else
{
value = (T)(object)GuidKey.Create(Guid.Parse(rawGuidValue), type);
}
return(true);
}
else if (element.TryGetProperty("Identifier", out JsonElement rawIdentifier))
{
string rawIdentifierValue = rawIdentifier.GetString();
if (rawIdentifierValue == null)
{
value = (T)(object)StringKey.Empty(type);
}
else
{
value = (T)(object)StringKey.Create(rawIdentifierValue, type);
}
return(true);
}
}
if (typeof(T) == typeof(Color))
{
byte[] parts = element.GetString().Split(new char[] { ';' }).Select(p => Byte.Parse(p)).ToArray();
value = (T)(object)Color.FromArgb(parts[0], parts[1], parts[2], parts[3]);
log.Debug($"Get: Color: '{value}'.");
return(true);
}
if (typeof(T) == typeof(Price))
{
log.Debug($"Get: Price value type: '{element.GetProperty("Value").GetType().FullName}'.");
decimal priceValue = element.GetProperty("Value").GetDecimal();
string priceCurrency = element.GetProperty("Currency").GetString();
value = (T)(object)new Price(priceValue, priceCurrency);
return(true);
}
if (typeof(T) == typeof(DateTime))
{
string rawDateTime = element.GetString();
if (DateTime.TryParse(rawDateTime, out DateTime dateTime))
{
value = (T)(object)dateTime;
return(true);
}
else
{
log.Warning($"Get: Key: '{key}' not parseable to datetime from value '{rawDateTime}'.");
value = default(T);
return(false);
}
}
}
log.Debug($"Get: Key: '{key}' NOT FOUND. Storage: '{JsonSerializer.Serialize(storage)}'.");
value = default(T);
return(false);
}
