public OrderMatcher(OrderRequest orderRequest, EffectProcessorsContainer effectsContainer)
{
resultEffects = effectsContainer;
takerOrder = new Order
{
OrderId = OrderIdConverter.FromRequest(orderRequest, effectsContainer.Apex),
AccountWrapper = orderRequest.AccountWrapper,
Amount = orderRequest.Amount,
Price = orderRequest.Price
};
timeInForce = orderRequest.TimeInForce;
//parse data from the ID of the newly arrived order
var orderData = OrderIdConverter.Decode(takerOrder.OrderId);
asset = orderData.Asset;
side = orderData.Side;
//get asset orderbook
market = effectsContainer.Context.Exchange.GetMarket(asset);
orderbook = market.GetOrderbook(side.Inverse());
//fetch balances
if (!takerOrder.AccountWrapper.Account.HasBalance(asset))
{
resultEffects.AddBalanceCreate(orderRequest.AccountWrapper, asset);
}
}
byte[] GetEffectsData(EffectProcessorsContainer effectsContainer)
{
var resultEffectsContainer = new EffectsContainer {
Effects = effectsContainer.Effects
};
return(resultEffectsContainer.ToByteArray(buffer.Buffer));
}
/// <summary>
/// Process customer's order request.
/// </summary>
/// <param name="orderRequest">Order request quantum</param>
/// <returns></returns>
public void ExecuteOrder(EffectProcessorsContainer effectsContainer)
{
RequestQuantum orderRequestQuantum = (RequestQuantum)effectsContainer.Envelope.Message;
var orderRequest = (OrderRequest)orderRequestQuantum.RequestEnvelope.Message;
var updates = new OrderMatcher(orderRequest, effectsContainer).Match();
awaitedUpdates?.Add(updates);
}
public void RemoveOrder(EffectProcessorsContainer effectsContainer, OrderbookBase orderbook, Order order)
{
effectsContainer.AddOrderRemoved(orderbook, order);
if (awaitedUpdates != null)
{
var updateTime = new DateTime(((Quantum)effectsContainer.Envelope.Message).Timestamp, DateTimeKind.Utc);
var exchangeItem = new ExchangeUpdate(orderbook.Market, updateTime);
exchangeItem.OrderUpdates.Add(order.ToOrderInfo(OrderState.Deleted));
awaitedUpdates.Add(exchangeItem);
}
}
public static void AddBalanceCreate(this EffectProcessorsContainer effectProcessors, AccountWrapper account, int asset)
{
effectProcessors.Add(new BalanceCreateEffectProcessor(
new BalanceCreateEffect
{
AccountWrapper = account,
Asset = asset,
Apex = effectProcessors.Apex
}
));
}
public static void AddCursorUpdate(this EffectProcessorsContainer effectProcessors, TxCursorManager txManager, long newCursor, long prevCursor)
{
effectProcessors.Add(new TxCursorUpdateEffectProcessor(
new TxCursorUpdateEffect
{
Apex = effectProcessors.Apex,
Cursor = newCursor,
PrevCursor = prevCursor
},
txManager
));
}
public static void AddAccountCreate(this EffectProcessorsContainer effectProcessors, AccountStorage accountStorage, int accountId, RawPubKey publicKey)
{
effectProcessors.Add(new AccountCreateEffectProcessor(
new AccountCreateEffect
{
AccountId = accountId,
Pubkey = publicKey,
Apex = effectProcessors.Apex
},
accountStorage
));
}
public static void AddNonceUpdate(this EffectProcessorsContainer effectProcessors, AccountWrapper account, long newNonce, long currentNonce)
{
effectProcessors.Add(new NonceUpdateEffectProcessor(
new NonceUpdateEffect
{
Nonce = newNonce,
PrevNonce = currentNonce,
AccountWrapper = account,
Apex = effectProcessors.Apex
}
));
}
public static void AddWithdrawalCreate(this EffectProcessorsContainer effectProcessors, WithdrawalWrapper withdrawal, WithdrawalStorage withdrawalStorage)
{
var effect = new WithdrawalCreateEffect
{
Apex = effectProcessors.Apex,
AccountWrapper = withdrawal.Source,
Items = withdrawal.Withdrawals.Select(w => new WithdrawalEffectItem {
Asset = w.Asset, Amount = w.Amount
}).OrderBy(a => a.Asset).ToList()
};
effectProcessors.Add(new WithdrawalCreateEffectProcessor(effect, withdrawal, withdrawalStorage));
}
public static void AddAccountCreate(this EffectProcessorsContainer effectProcessors, AccountStorage accountStorage, int accountId, RawPubKey publicKey)
{
effectProcessors.Add(new AccountCreateEffectProcessor(
new AccountCreateEffect
{
Account = accountId,
Pubkey = publicKey,
Apex = effectProcessors.Apex
},
accountStorage,
effectProcessors.Context.Constellation.RequestRateLimits
));
}
public static void AddTrade(this EffectProcessorsContainer effectProcessors, Order order, long assetAmount, long quoteAmount, bool isNewOrder)
{
var trade = new TradeEffect
{
Apex = effectProcessors.Apex,
AccountWrapper = order.AccountWrapper,
AssetAmount = assetAmount,
QuoteAmount = quoteAmount,
OrderId = order.OrderId,
IsNewOrder = isNewOrder
};
effectProcessors.Add(new TradeEffectProcessor(trade, order));
}
public static void AddOrderRemoved(this EffectProcessorsContainer effectProcessors, Orderbook orderbook, Order order)
{
effectProcessors.Add(new OrderRemovedEffectProccessor(
new OrderRemovedEffect
{
Apex = effectProcessors.Apex,
OrderId = order.OrderId,
AccountWrapper = order.AccountWrapper,
Amount = order.Amount,
QuoteAmount = order.QuoteAmount,
Price = order.Price
},
orderbook
));
}
public static void AddConstellationInit(this EffectProcessorsContainer effectProcessors, ConstellationInitQuantum initQuantum)
{
effectProcessors.Add(new ConstellationInitEffectProcessor(
new ConstellationInitEffect
{
Apex = initQuantum.Apex,
Assets = initQuantum.Assets,
Auditors = initQuantum.Auditors,
MinAccountBalance = initQuantum.MinAccountBalance,
MinAllowedLotSize = initQuantum.MinAllowedLotSize,
Vault = initQuantum.Vault,
RequestRateLimits = initQuantum.RequestRateLimits,
TxCursor = initQuantum.TxCursor
}
));
}
public static void AddOrderPlaced(this EffectProcessorsContainer effectProcessors, Orderbook orderBook, Order order)
{
var decodedOrderId = OrderIdConverter.Decode(order.OrderId);
var effect = new OrderPlacedEffect
{
Apex = effectProcessors.Apex,
AccountWrapper = order.AccountWrapper,
Asset = decodedOrderId.Asset,
Amount = order.Amount,
QuoteAmount = order.QuoteAmount,
Price = order.Price,
OrderId = order.OrderId,
OrderSide = decodedOrderId.Side
};
effectProcessors.Add(new OrderPlacedEffectProcessor(effect, orderBook, order));
}
public override WithdrawalCleanupProcessorContext GetContext(EffectProcessorsContainer container)
{
return(new WithdrawalCleanupProcessorContext(container));
}
public override LedgerCommitProcessorContext GetContext(EffectProcessorsContainer container)
{
return(new LedgerCommitProcessorContext(container));
}
public RequestContext(EffectProcessorsContainer effectProcessors)
: base(effectProcessors)
{
Request = (RequestQuantum)Envelope.Message;
}
public WithdrawalCleanupProcessorContext(EffectProcessorsContainer effectProcessorsContainer)
: base(effectProcessorsContainer)
{
}
public static void Aggregate(this EffectProcessorsContainer processorsContainer, MessageEnvelope quantumEnvelope, Effect quatumEffect, int effectIndex)
{
if (processorsContainer == null)
{
throw new ArgumentNullException(nameof(processorsContainer));
}
var pendingDiffObject = processorsContainer.PendingDiffObject;
if (pendingDiffObject == null)
{
throw new ArgumentNullException(nameof(pendingDiffObject));
}
if (quantumEnvelope == null)
{
throw new ArgumentNullException(nameof(quantumEnvelope));
}
if (quatumEffect == null)
{
throw new ArgumentNullException(nameof(quatumEffect));
}
var accountWrapper = quatumEffect.AccountWrapper;
var apex = processorsContainer.Apex;
processorsContainer.QuantumModel.AddEffect(accountWrapper?.Account.Id ?? 0, quatumEffect.FromEffect(effectIndex));
switch (quatumEffect)
{
case ConstellationInitEffect constellationInit:
pendingDiffObject.ConstellationSettings = GetConstellationSettings(constellationInit);
pendingDiffObject.StellarInfoData = new DiffObject.ConstellationState {
TxCursor = constellationInit.TxCursor, IsInserted = true
};
pendingDiffObject.Assets = GetAssets(constellationInit, null);
break;
case ConstellationUpdateEffect constellationUpdate:
throw new NotImplementedException();
pendingDiffObject.ConstellationSettings = GetConstellationSettings(constellationUpdate);
pendingDiffObject.Assets = GetAssets(constellationUpdate, Global.PermanentStorage.LoadAssets(long.MaxValue).Result);
break;
case AccountCreateEffect accountCreateEffect:
{
var pubKey = accountCreateEffect.Pubkey;
var accId = accountCreateEffect.AccountId;
pendingDiffObject.Accounts.Add(accId, new DiffObject.Account {
PubKey = pubKey, Id = accId, IsInserted = true
});
}
break;
case NonceUpdateEffect nonceUpdateEffect:
{
var accId = nonceUpdateEffect.AccountWrapper.Account.Id;
GetAccount(pendingDiffObject.Accounts, accId).Nonce = nonceUpdateEffect.Nonce;
}
break;
case BalanceCreateEffect balanceCreateEffect:
{
var accId = balanceCreateEffect.AccountWrapper.Account.Id;
var balanceId = BalanceModelIdConverter.EncodeId(accId, balanceCreateEffect.Asset);
GetBalance(pendingDiffObject.Balances, balanceId).IsInserted = true;
}
break;
case BalanceUpdateEffect balanceUpdateEffect:
{
var accId = balanceUpdateEffect.AccountWrapper.Account.Id;
var balanceId = BalanceModelIdConverter.EncodeId(accId, balanceUpdateEffect.Asset);
GetBalance(pendingDiffObject.Balances, balanceId).AmountDiff += balanceUpdateEffect.Amount;
}
break;
case RequestRateLimitUpdateEffect requestRateLimitUpdateEffect:
{
var accId = requestRateLimitUpdateEffect.AccountWrapper.Account.Id;
GetAccount(pendingDiffObject.Accounts, accId).RequestRateLimits = new RequestRateLimitsModel
{
HourLimit = requestRateLimitUpdateEffect.RequestRateLimits.HourLimit,
MinuteLimit = requestRateLimitUpdateEffect.RequestRateLimits.MinuteLimit
};
}
break;
case OrderPlacedEffect orderPlacedEffect:
{
var accId = orderPlacedEffect.AccountWrapper.Account.Id;
var orderId = orderPlacedEffect.OrderId;
pendingDiffObject.Orders[orderId] = new DiffObject.Order
{
AmountDiff = orderPlacedEffect.Amount,
QuoteAmountDiff = orderPlacedEffect.QuoteAmount,
IsInserted = true,
OrderId = orderId,
Price = orderPlacedEffect.Price,
Account = accId
};
//update liabilities
var decodedId = OrderIdConverter.Decode(orderId);
if (decodedId.Side == OrderSide.Buy)
{
GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, 0)).LiabilitiesDiff += orderPlacedEffect.QuoteAmount;
}
else
{
GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, decodedId.Asset)).LiabilitiesDiff += orderPlacedEffect.Amount;
}
}
break;
case OrderRemovedEffect orderRemovedEffect:
{
var accId = orderRemovedEffect.AccountWrapper.Account.Id;
var orderId = orderRemovedEffect.OrderId;
GetOrder(pendingDiffObject.Orders, orderId).IsDeleted = true;
//update liabilities
var decodedId = OrderIdConverter.Decode(orderId);
if (decodedId.Side == OrderSide.Buy)
{
GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, 0)).LiabilitiesDiff -= orderRemovedEffect.QuoteAmount;
}
else
{
GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, decodedId.Asset)).LiabilitiesDiff -= orderRemovedEffect.Amount;
}
}
break;
case TradeEffect tradeEffect:
{
var order = GetOrder(pendingDiffObject.Orders, tradeEffect.OrderId);
order.AmountDiff -= tradeEffect.AssetAmount;
order.QuoteAmountDiff -= tradeEffect.QuoteAmount;
}
break;
case TxCursorUpdateEffect cursorUpdateEffect:
{
if (pendingDiffObject.StellarInfoData == null)
{
pendingDiffObject.StellarInfoData = new DiffObject.ConstellationState {
TxCursor = cursorUpdateEffect.Cursor
}
}
;
else
{
pendingDiffObject.StellarInfoData.TxCursor = cursorUpdateEffect.Cursor;
}
}
break;
case WithdrawalCreateEffect withdrawalCreateEffect:
{
var accId = withdrawalCreateEffect.AccountWrapper.Account.Id;
GetAccount(pendingDiffObject.Accounts, accId).Withdrawal = withdrawalCreateEffect.Apex;
foreach (var withdrawalItem in withdrawalCreateEffect.Items)
{
GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, withdrawalItem.Asset)).LiabilitiesDiff += withdrawalItem.Amount;
}
}
break;
case WithdrawalRemoveEffect withdrawalRemoveEffect:
{
var accId = withdrawalRemoveEffect.AccountWrapper.Account.Id;
GetAccount(pendingDiffObject.Accounts, accId).Withdrawal = 0;
foreach (var withdrawalItem in withdrawalRemoveEffect.Items)
{
var balance = GetBalance(pendingDiffObject.Balances, BalanceModelIdConverter.EncodeId(accId, withdrawalItem.Asset));
if (withdrawalRemoveEffect.IsSuccessful)
{
balance.AmountDiff -= withdrawalItem.Amount;
}
balance.LiabilitiesDiff -= withdrawalItem.Amount;
}
}
break;
default:
break;
}
}
public override OrderCancellationProcessorContext GetContext(EffectProcessorsContainer effectProcessors)
{
return(new OrderCancellationProcessorContext(effectProcessors));
}
public PaymentProcessorContext(EffectProcessorsContainer effectProcessors)
: base(effectProcessors)
{
Payment = (PaymentRequest)Request.RequestEnvelope.Message;
SourceAccount = Payment.AccountWrapper;
}
public LedgerCommitProcessorContext(EffectProcessorsContainer effectProcessors)
: base(effectProcessors)
{
}
ProcessorContext IQuantumRequestProcessor.GetContext(EffectProcessorsContainer container) => GetContext(container);
/// <summary>
///
/// </summary>
/// <param name="effectProcessors">Current context effects processor container</param>
public ProcessorContext(EffectProcessorsContainer effectProcessors)
{
EffectProcessors = effectProcessors ?? throw new ArgumentNullException(nameof(effectProcessors));
}
public WithdrawalProcessorContext(EffectProcessorsContainer effectProcessorsContainer)
: base(effectProcessorsContainer)
{
WithdrawalRequest = (WithdrawalRequest)Request.RequestEnvelope.Message;
}
public override PaymentProcessorContext GetContext(EffectProcessorsContainer container)
{
return(new PaymentProcessorContext(container));
}
public abstract T GetContext(EffectProcessorsContainer container);
