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DgsReactiveWebsocketHandler.kt
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/
DgsReactiveWebsocketHandler.kt
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/*
* Copyright 2021 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.graphql.dgs.webflux.handlers
import com.netflix.graphql.dgs.reactive.DgsReactiveQueryExecutor
import com.netflix.graphql.types.subscription.GRAPHQL_SUBSCRIPTIONS_TRANSPORT_WS_PROTOCOL
import com.netflix.graphql.types.subscription.GRAPHQL_SUBSCRIPTIONS_WS_PROTOCOL
import org.springframework.web.reactive.socket.WebSocketHandler
import org.springframework.web.reactive.socket.WebSocketSession
import reactor.core.publisher.Mono
import java.time.Duration
class DgsReactiveWebsocketHandler(dgsReactiveQueryExecutor: DgsReactiveQueryExecutor, connectionInitTimeout: Duration) : WebSocketHandler {
private val graphqlWSHandler = WebsocketGraphQLWSProtocolHandler(dgsReactiveQueryExecutor)
private val graphqlTransportWSHandler = WebsocketGraphQLTransportWSProtocolHandler(dgsReactiveQueryExecutor, connectionInitTimeout)
override fun getSubProtocols(): List<String> = listOf(GRAPHQL_SUBSCRIPTIONS_WS_PROTOCOL, GRAPHQL_SUBSCRIPTIONS_TRANSPORT_WS_PROTOCOL)
override fun handle(webSocketSession: WebSocketSession): Mono<Void> {
if (webSocketSession.handshakeInfo.subProtocol.equals(GRAPHQL_SUBSCRIPTIONS_WS_PROTOCOL, ignoreCase = true)) {
return graphqlWSHandler.handle(webSocketSession)
} else if (webSocketSession.handshakeInfo.subProtocol.equals(GRAPHQL_SUBSCRIPTIONS_TRANSPORT_WS_PROTOCOL, ignoreCase = true)) {
return graphqlTransportWSHandler.handle(webSocketSession)
}
return Mono.empty()
}
}