com.expediagroup.graphql.dataloader.KotlinDataLoaderRegistryFactory.kt Maven / Gradle / Ivy

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Graphql Kotlin Data Loader

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/*
 * Copyright 2023 Expedia, 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
 *
 *     https://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.expediagroup.graphql.dataloader

import org.dataloader.DataLoaderRegistry
import graphql.GraphQLContext

/**
 * Generates a [KotlinDataLoaderRegistry] with the configuration provided by all [KotlinDataLoader]s.
 */
class KotlinDataLoaderRegistryFactory(
    private val dataLoaders: List>
) {

    constructor(vararg dataLoaders: KotlinDataLoader<*, *>) : this(dataLoaders.toList())

    /**
     * Generate [KotlinDataLoaderRegistry] to be used for GraphQL request execution.
     */
    fun generate(graphQLContext: GraphQLContext): KotlinDataLoaderRegistry =
        KotlinDataLoaderRegistry(
            dataLoaders.fold(DataLoaderRegistry()) { registry, kotlinDataLoader ->
                registry.register(
                    kotlinDataLoader.dataLoaderName,
                    kotlinDataLoader.getDataLoader(graphQLContext)
                )
            }
        )
}