/*
 * Copyright (c) 2019-Present Pivotal Software Inc, All Rights Reserved.
 *
 * 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 reactor.core.scheduler;

import reactor.blockhound.BlockHound;
import reactor.blockhound.integration.BlockHoundIntegration;

import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadPoolExecutor;

BlockHoundIntegration with Reactor's scheduling mechanism. WARNING: this class is not intended to be public, but ServiceLoader requires it to be so. Public visibility DOES NOT make it part of the public API. 
Since:
3.3.0/**
 * {@link BlockHoundIntegration} with Reactor's scheduling mechanism.
 *
 * WARNING: this class is not intended to be public, but {@link java.util.ServiceLoader}
 * requires it to be so. Public visibility DOES NOT make it part of the public API.
 *
 * @since 3.3.0
 */
public final class ReactorBlockHoundIntegration implements BlockHoundIntegration {

    @Override
    public void applyTo(BlockHound.Builder builder) {
        builder.nonBlockingThreadPredicate(current -> current.or(NonBlocking.class::isInstance));

        builder.allowBlockingCallsInside(ScheduledThreadPoolExecutor.class.getName() + "$DelayedWorkQueue", "offer");
        builder.allowBlockingCallsInside(ScheduledThreadPoolExecutor.class.getName() + "$DelayedWorkQueue", "take");

        // Calls ScheduledFutureTask#cancel that may short park in DelayedWorkQueue#remove for getting a lock
        builder.allowBlockingCallsInside(SchedulerTask.class.getName(), "dispose");

        builder.allowBlockingCallsInside(ThreadPoolExecutor.class.getName(), "processWorkerExit");
    }
}