com.mongodb.internal.connection.AbstractReferenceCounted Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of aem-sdk-api Show documentation

The Adobe Experience Manager SDK

There is a newer version: 2024.11.18751.20241128T090041Z-241100

/*
 * 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.connection;

import com.mongodb.binding.ReferenceCounted;
import java.util.concurrent.atomic.AtomicInteger;

// @deprecated Usage of this API is not supported in AEM as a Cloud Service.
@Deprecated(since = "2021-05-27")
abstract class AbstractReferenceCounted implements ReferenceCounted {

    private final AtomicInteger referenceCount = new AtomicInteger(1);

    @Override
    public int getCount() {
        return referenceCount.get();
    }

    @Override
    public ReferenceCounted retain() {
        if (referenceCount.incrementAndGet() == 1) {
            throw new IllegalStateException("Attempted to increment the reference count when it is already 0");
        }
        return this;
    }

    @Override
    public void release() {
        if (referenceCount.decrementAndGet() < 0) {
            throw new IllegalStateException("Attempted to decrement the reference count below 0");
        }
    }
}