Package io.deephaven.server.arrow

Class ExchangeMarshallerModule

java.lang.Object

io.deephaven.server.arrow.ExchangeMarshallerModule

@Module
public class ExchangeMarshallerModule
extends Object

A dagger module that provides exchange marshallers and handlers for use by the ArrowFlightUtil DoExchangeMarshaller, loaded using a ServiceLoader constructed with the injected Scheduler, SessionService.ErrorTransformer and BarrageMessageWriter.Factory parameters.

Note, the user of the ExchangeMarshaller set must sort the marshallers according to priority. The set cannot be sorted at our injection point, because there may be multiple @ElementsIntoSet injectors.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExchangeMarshallerModule.Factory	To add an additional ExchangeMarshaller, implement this Factory and add it as a service.

Constructor Summary

Constructors

Constructor	Description
ExchangeMarshallerModule()

Method Summary

Modifier and Type	Method	Description
static Set<ExchangeMarshaller>	provideExchangeMarshallers(Scheduler scheduler, SessionService.ErrorTransformer errorTransformer, io.deephaven.extensions.barrage.BarrageMessageWriter.Factory streamGeneratorFactory)
static Set<ExchangeRequestHandlerFactory>	provideRequestHandlers()
static List<ExchangeMarshaller>	sortMarshallersByPriority(@NotNull Set<ExchangeMarshaller> marshallers)	Multiple modules could have injected a marshaller, we must sort the complete list by priority.

Methods inherited from class java.lang.Object

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

Constructor Details

ExchangeMarshallerModule

public ExchangeMarshallerModule()

Method Details

sortMarshallersByPriority

@Provides
public static List<ExchangeMarshaller> sortMarshallersByPriority(@NotNull
 @NotNull Set<ExchangeMarshaller> marshallers)

Multiple modules could have injected a marshaller, we must sort the complete list by priority.

Parameters:

marshallers - the input set of marshallers

Returns:

the marshallers sorted in ascending priority.

provideExchangeMarshallers

@Provides
@ElementsIntoSet
public static Set<ExchangeMarshaller> provideExchangeMarshallers(Scheduler scheduler,
 SessionService.ErrorTransformer errorTransformer,
 io.deephaven.extensions.barrage.BarrageMessageWriter.Factory streamGeneratorFactory)

provideRequestHandlers

@Provides
@ElementsIntoSet
public static Set<ExchangeRequestHandlerFactory> provideRequestHandlers()