content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.activemq.artemis.utils.pools;
  
  import java.util.Queue;
  import java.util.function.Consumer;
  import java.util.function.Supplier;
  
  import io.netty.util.internal.PlatformDependent;
  
  /**
   * A simple encapsulation of Netty MpscQueue to provide a pool of objects. Use this pool only when the borrowing of
   * object (consume) is done on a single thread. This is using a Multi Producer Single Consumer queue (MPSC). If you need
   * other uses you may create different strategies for ObjectPooling.
   */
  public class MpscPool<T> extends Pool<T> {
  
     public MpscPool(int maxSize, Consumer<T> cleaner, Supplier<T> supplier) {
        super(maxSize, cleaner, supplier);
     }
  
     @Override
     protected Queue<T> createQueue(int maxSize) {
        final Queue<T> internalPool;
        if (maxSize > 0) {
           internalPool = PlatformDependent.newFixedMpscQueue(maxSize);
        } else {
           internalPool = null;
        }
        return internalPool;
     }
  
  }
  