com.mongodb.internal.Locks Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of mongodb-driver-core Show documentation

The Java operations layer for the MongoDB Java Driver. Third parties can ' + 'wrap this layer to provide custom higher-level APIs

There is a newer version: 5.3.0-beta0

Show newest version

/*
 * Copyright 2008-present MongoDB, 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
 *
 *   http://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.mongodb.internal;

import com.mongodb.MongoInterruptedException;

import java.util.concurrent.locks.Lock;
import java.util.function.Supplier;

/**
 * This class is not part of the public API and may be removed or changed at any time
 */
public final class Locks {
    public static void withLock(final Lock lock, final Runnable action) {
        withLock(lock, () -> {
            action.run();
            return null;
        });
    }

    public static  V withLock(final Lock lock, final Supplier supplier) {
        return checkedWithLock(lock, supplier::get);
    }

    public static  V checkedWithLock(final Lock lock, final CheckedSupplier supplier) throws E {
        try {
            lock.lockInterruptibly();
            try {
                return supplier.get();
            } finally {
                lock.unlock();
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new MongoInterruptedException("Interrupted waiting for lock", e);
        }
    }

    private Locks() {
    }
}