graphql.nadel.enginekt.NadelExecutionContext.kt Maven / Gradle / Ivy

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Nadel is a Java library that combines multiple GrahpQL services together into one API.

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package graphql.nadel.enginekt

import graphql.ExecutionInput
import graphql.PublicApi
import graphql.nadel.NadelExecutionHints
import graphql.nadel.Service
import graphql.nadel.hooks.CreateServiceContextParams
import graphql.nadel.hooks.ServiceExecutionHooks
import graphql.normalized.ExecutableNormalizedOperation
import java.util.concurrent.CompletableFuture
import java.util.concurrent.ConcurrentHashMap

@PublicApi
data class NadelExecutionContext(
    val executionInput: ExecutionInput,
    val query: ExecutableNormalizedOperation,
    val hooks: ServiceExecutionHooks,
    val hints: NadelExecutionHints,
) {
    private val serviceContexts = ConcurrentHashMap>()

    val userContext: Any?
        get() {
            return executionInput.context
        }

    /**
     * Get the service context for a given service
     */
    fun getContextForService(service: Service): CompletableFuture {
        return serviceContexts.getOrPut(service.name) {
            hooks.createServiceContext(
                CreateServiceContextParams(service)
            )
        }
    }
}