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Create GraphQL Endpoints using the code-first approach from MicroProfile GraphQL

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package io.quarkus.smallrye.graphql.runtime.spi.datafetcher;

import java.util.concurrent.Callable;

import io.smallrye.graphql.schema.model.Execute;
import io.smallrye.graphql.schema.model.Operation;
import io.vertx.core.Context;
import io.vertx.core.Promise;

public final class BlockingHelper {

    private BlockingHelper() {
    }

    public static boolean blockingShouldExecuteNonBlocking(Operation operation, Context vc) {
        // Rule is that by default this should execute blocking except if marked as non-blocking)
        return operation.getExecute().equals(Execute.NON_BLOCKING);
    }

    public static boolean nonBlockingShouldExecuteBlocking(Operation operation, Context vc) {
        // Rule is that by default this should execute non-blocking except if marked as blocking
        return operation.getExecute().equals(Execute.BLOCKING) && vc.isEventLoopContext();
    }

    @SuppressWarnings("unchecked")
    public static void runBlocking(Context vc, Callable