Package org.knowm.xchange.simulated

Class SimulatedTradeService

java.lang.Object

org.knowm.xchange.service.BaseExchangeService<SimulatedExchange>

org.knowm.xchange.simulated.SimulatedTradeService

All Implemented Interfaces:

BaseService, TradeService

public class SimulatedTradeService
extends BaseExchangeService<SimulatedExchange>
implements TradeService

Field Summary

Fields inherited from class org.knowm.xchange.service.BaseExchangeService

exchange

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SimulatedTradeService(SimulatedExchange exchange)

Method Summary

Modifier and Type	Method	Description
boolean	cancelOrder(String orderId)	cancels order with matching orderId (conveniance method, typical just delegate to cancelOrder(CancelOrderByIdParams))
boolean	cancelOrder(CancelOrderParams orderParams)	cancels order with matching orderParams
OpenOrdersParamCurrencyPair	createOpenOrdersParams()	Create OpenOrdersParams object specific to this exchange.
TradeHistoryParamCurrencyPair	createTradeHistoryParams()	Create TradeHistoryParams object specific to this exchange.
OpenOrders	getOpenOrders(OpenOrdersParams params)	Gets the open orders
Collection<Order>	getOrder(String... orderIds)	get's the latest order form the order book that with matching orderId
Collection<Order>	getOrder(OrderQueryParams... orderQueryParams)	get's the latest order form the order book that with matching orderQueryParams
Class[]	getRequiredCancelOrderParamClasses()	Returns required cancel order parameter as classes
Class	getRequiredOrderQueryParamClass()	Returns required get order parameter as classes
UserTrades	getTradeHistory(TradeHistoryParams params)	Fetch the history of user trades.
String	placeLimitOrder(LimitOrder limitOrder)	Place a limit order
String	placeLimitOrderUnrestricted(LimitOrder limitOrder)	Use instead of placeLimitOrder(LimitOrder) to bypass rate limitations and transient errors when building up a simulated order book.
String	placeMarketOrder(MarketOrder marketOrder)	Place a market order

Methods inherited from class org.knowm.xchange.service.BaseExchangeService

verifyOrder, verifyOrder, verifyOrder

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.knowm.xchange.service.trade.TradeService

cancelAllOrders, changeOrder, getOpenOrders, getOpenPositions, placeStopOrder, verifyOrder, verifyOrder

Constructor Details

SimulatedTradeService

protected SimulatedTradeService(SimulatedExchange exchange)

Method Details

placeLimitOrder

public String placeLimitOrder(LimitOrder limitOrder)
                       throws IOException

Description copied from interface: TradeService

Place a limit order

If your orders amount or limit price does to meet the restrictions dictated by InstrumentMetaData then the exchange will reject your order. Use OrderValuesHelper to validate and / or adjust those values while you'r building an order.

Specified by:

placeLimitOrder in interface TradeService

Returns:

the order ID

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

See Also:

• OrderValuesHelper

placeLimitOrderUnrestricted

public String placeLimitOrderUnrestricted(LimitOrder limitOrder)

Use instead of placeLimitOrder(LimitOrder) to bypass rate limitations and transient errors when building up a simulated order book.

Parameters:

limitOrder - The limit order.

Returns:

The id of the resulting order.

placeMarketOrder

public String placeMarketOrder(MarketOrder marketOrder)
                        throws IOException

Description copied from interface: TradeService

Place a market order

If your orders amount does to meet the restrictions dictated by InstrumentMetaData then the exchange will reject your order. Use OrderValuesHelper to validate and / or adjust it while you'r building an order.

Specified by:

placeMarketOrder in interface TradeService

Returns:

the order ID

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

See Also:

• OrderValuesHelper

getOpenOrders

public OpenOrders getOpenOrders(OpenOrdersParams params)
                         throws IOException

Description copied from interface: TradeService

Gets the open orders

Specified by:

getOpenOrders in interface TradeService

Parameters:

params - The parameters describing the filter. Note that OpenOrdersParams is an empty interface. Exchanges should implement its own params object. Params should be create with TradeService.createOpenOrdersParams().

Returns:

the open orders, null if some sort of error occurred. Implementers should log the error.

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

getTradeHistory

public UserTrades getTradeHistory(TradeHistoryParams params)
                           throws IOException

Description copied from interface: TradeService

Fetch the history of user trades.

If you are calling this method for single exchange, known at the development time, you may pass an object of specific *TradeHistoryParam class that is nested it that exchange's trade service.

If, however, you are fetching user trade history from many exchanges using the same code, you will find useful to create the parameter object with TradeService.createTradeHistoryParams() and check which parameters are required or supported using instanceof operator. See subinterfaces of TradeHistoryParams. Note that whether an interface is required or supported will vary from exchange to exchange and it's described only through the javadoc.

There is also implementation of all the common interfaces, TradeHistoryParamsAll , that, with all properties set non-null, should work with any exchange.

Some exchanges allow extra parameters, not covered by any common interface. To access them, you will have to use the object returned by TradeService.createTradeHistoryParams() and cast it to the exchange-specific type.

Specified by:

getTradeHistory in interface TradeService

Parameters:

params - The parameters describing the filter. Note that TradeHistoryParams is an empty interface. Exact set of interfaces that are required or supported by this method is described by the type of object returned from TradeService.createTradeHistoryParams() and the javadoc of the method.

Returns:

UserTrades as returned by the exchange API

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

See Also:

• TradeService.createTradeHistoryParams()
• TradeHistoryParamsAll

createOpenOrdersParams

public OpenOrdersParamCurrencyPair createOpenOrdersParams()

Description copied from interface: TradeService

Create OpenOrdersParams object specific to this exchange. Object created by this method may be used to discover supported and required TradeService.getOpenOrders(OpenOrdersParams) parameters and should be passed only to the method in the same class as the createOpenOrdersParams that created the object.

Specified by:

createOpenOrdersParams in interface TradeService

createTradeHistoryParams

public TradeHistoryParamCurrencyPair createTradeHistoryParams()

Description copied from interface: TradeService

Create TradeHistoryParams object specific to this exchange. Object created by this method may be used to discover supported and required TradeService.getTradeHistory(TradeHistoryParams) parameters and should be passed only to the method in the same class as the createTradeHistoryParams that created the object.

Specified by:

createTradeHistoryParams in interface TradeService

cancelOrder

public boolean cancelOrder(CancelOrderParams orderParams)
                    throws IOException

Description copied from interface: TradeService

cancels order with matching orderParams

Specified by:

cancelOrder in interface TradeService

Returns:

true if order was successfully cancelled, false otherwise.

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

getRequiredCancelOrderParamClasses

public Class[] getRequiredCancelOrderParamClasses()

Description copied from interface: TradeService

Returns required cancel order parameter as classes

Different trading services requires different parameters for order cancellation. To provide generic operation of the trade service interface. This method returns Class of the parameter objects as an array. This class information can be utilized by the caller of TradeService.cancelOrder(CancelOrderParams) to create instances of the required parameters such as CancelOrderByIdParams, CancelOrderByInstrument etc...

Specified by:

getRequiredCancelOrderParamClasses in interface TradeService

Returns:

Class types for the required parameter classes. Default implementation returns an array with a single CancelOrderByIdParams element

cancelOrder

public boolean cancelOrder(String orderId)
                    throws IOException

Description copied from interface: TradeService

cancels order with matching orderId (conveniance method, typical just delegate to cancelOrder(CancelOrderByIdParams))

Specified by:

cancelOrder in interface TradeService

Returns:

true if order was successfully cancelled, false otherwise.

Throws:

IOException - - Indication that a networking error occurred while fetching JSON data

getRequiredOrderQueryParamClass

public Class getRequiredOrderQueryParamClass()

Description copied from interface: TradeService

Returns required get order parameter as classes

Different trading services requires different parameters for order querying. To provide generic operation of the trade service interface, This method returns Class of the parameter objects as an array. This class information can be utilized by the caller of TradeService.getOrder(OrderQueryParams...) to create instances of the required parameter such as OrderQueryParamCurrencyPair, OrderQueryParamInstrument etc...

Specified by:

getRequiredOrderQueryParamClass in interface TradeService

Returns:

Class type for the required parameter class. Default implementation returns an instance of OrderQueryParams element

getOrder

public Collection<Order> getOrder(OrderQueryParams... orderQueryParams)

Description copied from interface: TradeService

get's the latest order form the order book that with matching orderQueryParams

Specified by:

getOrder in interface TradeService

Returns:

the order as it is on the exchange.

getOrder

public Collection<Order> getOrder(String... orderIds)

Description copied from interface: TradeService

get's the latest order form the order book that with matching orderId

Specified by:

getOrder in interface TradeService

Returns:

the order as it is on the exchange.