private static void SendRequest(SearchRequest request, int requestId, IConnection connection)
{
CodeContract.Requires(connection != null);
var message = RequestContractDetailsMessage.Create(request);
message.RequestId = requestId;
connection.SendMessage(message);
}
public Task<IReadOnlyCollection<Contract>> FindContracts(SearchRequest request,
CancellationToken cancellationToken)
{
using (
var cancellationTokenSource =
CancellationTokenSource.CreateLinkedTokenSource(this.internalCancelationTokenSource.Token,
cancellationToken))
{
return this.objectsFactory.CreateAsyncFindContractOperation(request, cancellationTokenSource.Token);
}
}
public FindContractsOperation(IConnection connection, IIdsDispenser dispenser, SearchRequest request,
CancellationToken cancellationToken)
{
CodeContract.Requires(connection != null);
CodeContract.Requires(dispenser != null);
cancellationToken.Register(() =>
{
this.subscriptions.Unsubscribe();
this.taskCompletionSource.TrySetCanceled();
});
this.resultsToRetireve = request.NumberOfResults ?? int.MaxValue;
this.Subscribe(connection, dispenser, request);
}
private void Subscribe(IConnection connection, IIdsDispenser dispenser, SearchRequest request)
{
CodeContract.Requires(connection != null);
CodeContract.Requires(dispenser != null);
var requestId = dispenser.NextRequestId();
this.subscriptions = new List<IDisposable>
{
connection.Subscribe((ContractDataMessage message) => message.RequestId == requestId,
this.OnContractDataMessage),
connection.Subscribe((ContractDataEndMessage message) => message.RequestId == requestId,
this.OnContractDataEndMessage),
connection.SubscribeForRequestErrors(requestId, this.OnError)
};
SendRequest(request, requestId, connection);
}
public abstract Task<IReadOnlyCollection<Contract>> FindContracts(SearchRequest request,
CancellationToken cancellationToken);
public Task<IReadOnlyCollection<Contract>> CreateAsyncFindContractOperation(SearchRequest searchRequest,
CancellationToken cancellationToken)
{
return new FindContractsOperation(this.connection, this.idsDispenser, searchRequest, cancellationToken).Task;
}
public async void Search()
{
this.Results.Clear();
var request = new SearchRequest
{
Symbol = this.Ticker, NumberOfResults = this.ContractsToSearch,
SecurityType = this.SelectedSecurityType
};
if (!string.IsNullOrEmpty(this.Currency))
{
request.Currency = this.Currency;
}
var contracts = await this.client.FindContracts(request, CancellationToken.None);
this.Results.AddRange(ConvertToResults(contracts));
}
private async void PlaceOrder(OrderAction action)
{
if (this.SelectedOrderType == OrderType.Limit && !this.LimitPrice.HasValue)
{
this.SetFieldError(true, "LimitPrice");
return;
}
if (this.SelectedOrderType == OrderType.Stop && !this.StopPrice.HasValue)
{
this.SetFieldError(true, "StopPrice");
return;
}
this.cancellationTokenSource = new CancellationTokenSource();
var searchRequest = new SearchRequest{NumberOfResults = 1};
if (this.Ticker.Length == 7 && this.Ticker[3] == '.')
{
searchRequest.LocalSymbol = this.Ticker;
searchRequest.SecurityType = SecurityType.CASH;
}
else
{
searchRequest.Symbol = this.Ticker;
}
Contract contract;
try
{
contract = (await this.client.FindContracts(searchRequest,
this.cancellationTokenSource.Token)).First();
}
catch (IbException)
{
this.SetFieldError(true, "Ticker");
return;
}
try
{
var orderParams = new OrderParams
{
Contract = contract,
LimitPrice = this.LimitPrice,
OrderAction = action,
OrderType = this.SelectedOrderType,
Quantity = this.Quantity,
StopPrice = this.StopPrice,
};
var account = this.client.Accounts.First(acc => acc.AccountId == this.SelectedAccount);
await account.PlaceOrder(orderParams, this.cancellationTokenSource.Token);
}
catch (IbException)
{
}
}