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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.fabric.bootstrap;

import org.neo4j.bolt.protocol.common.message.request.connection.RoutingContext;

/**
 * A collection of methods that allow overriding default behaviour to make some aspects of Fabric testable.
 * An override is injected using thread local values, in order to avoid interference between tests executed in parallel.
 */
public class TestOverrides {
    public static final InheritableThreadLocal ROUTING_CONTEXT = new InheritableThreadLocal<>();

    public static RoutingContext routingContext(RoutingContext originalValue) {
        var overriddenValue = ROUTING_CONTEXT.get();

        if (overriddenValue != null) {
            return overriddenValue;
        }

        return originalValue;
    }
}