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Avoid shadowed RSocketRequester extensions

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This commit renames RSocketRequester.RequestSpec data extension to
dataWithType to avoid shadowing issues and adds Publisher<T> and Flow<T>
variants to provide automatic reified type parameter resolution for
those types. It also makes RSocketRequester consistent with the
changes introduced via 2b4d6ce354 in WebFlux.
This commit is contained in:
Sebastien Deleuze
2019-07-08 11:07:30 +02:00
parent 4bced4682a
commit 88d7fede36
2 changed files with 56 additions and 7 deletions
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38
spring-messaging/src/main/kotlin/org/springframework/messaging/rsocket/RSocketRequesterExtensions.kt
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@@ -22,6 +22,7 @@ import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.reactive.awaitFirstOrNull
import kotlinx.coroutines.reactive.awaitSingle
import kotlinx.coroutines.reactive.flow.asFlow
import org.reactivestreams.Publisher
import org.springframework.core.ParameterizedTypeReference
import reactor.core.publisher.Flux
import reactor.core.publisher.Mono
@@ -55,18 +56,45 @@ suspend fun RSocketRequester.Builder.connectWebSocketAndAwait(uri: URI): RSocket
connectWebSocket(uri).awaitSingle()
/**
* Extension for [RSocketRequester.RequestSpec.data] providing a `data<Foo>(producer)`
* Extension for [RSocketRequester.RequestSpec.data] providing a `dataWithType<Foo>(Any)`
* variant leveraging Kotlin reified type parameters. This extension is not subject to type
* erasure and retains actual generic type arguments.
*
* @param producer the source of payload data value(s). This must be a
* [Publisher] or another producer adaptable to a
* [Publisher] via [org.springframework.core.ReactiveAdapterRegistry]
* @param <T> the type of values to be produced
* @author Sebastien Deleuze
* @since 5.2
*/
@Suppress("EXTENSION_SHADOWED_BY_MEMBER")
@FlowPreview
inline fun <reified T : Any> RSocketRequester.RequestSpec.data(producer: Any): RSocketRequester.ResponseSpec =
inline fun <reified T : Any> RSocketRequester.RequestSpec.dataWithType(producer: Any): RSocketRequester.ResponseSpec =
data(producer, object : ParameterizedTypeReference<T>() {})
/**
* Extension for [RSocketRequester.RequestSpec.data] providing a `dataWithType(Publisher<T>)`
* variant leveraging Kotlin reified type parameters. This extension is not subject to type
* erasure and retains actual generic type arguments.
* @param publisher the source of payload data value(s)
* @param <T> the type of values to be produced
* @author Sebastien Deleuze
* @since 5.2
*/
inline fun <reified T : Any> RSocketRequester.RequestSpec.dataWithType(publisher: Publisher<T>): RSocketRequester.ResponseSpec =
data(publisher, object : ParameterizedTypeReference<T>() {})
/**
* Extension for [RSocketRequester.RequestSpec.data] providing a `dataWithType(Flow<T>)`
* variant leveraging Kotlin reified type parameters. This extension is not subject to type
* erasure and retains actual generic type arguments.
* @param flow the [Flow] to write to the request
* @param <T> the source of payload data value(s)
* @author Sebastien Deleuze
* @since 5.2
*/
@FlowPreview
inline fun <reified T : Any> RSocketRequester.RequestSpec.dataWithType(flow: Flow<T>): RSocketRequester.ResponseSpec =
data(flow, object : ParameterizedTypeReference<T>() {})
/**
* Coroutines variant of [RSocketRequester.ResponseSpec.send].
*