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.transport.amqp.client.transport;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.ByteBufAllocator;
  import io.netty.buffer.CompositeByteBuf;
  import io.netty.buffer.PooledByteBufAllocator;
  import io.netty.buffer.UnpooledByteBufAllocator;
  
  /**
   * A {@link ByteBufAllocator} which is partial pooled. Which means only direct
   * {@link ByteBuf}s are pooled. The rest is unpooled.
   *
   * @author <a href="mailto:nmaurer@redhat.com">Norman Maurer</a>
   */
  public class PartialPooledByteBufAllocator implements ByteBufAllocator {
  
      private static final ByteBufAllocator POOLED = new PooledByteBufAllocator(false);
      private static final ByteBufAllocator UNPOOLED = new UnpooledByteBufAllocator(false);
  
      public static final PartialPooledByteBufAllocator INSTANCE = new PartialPooledByteBufAllocator();
  
      private PartialPooledByteBufAllocator() {
      }
  
      @Override
      public ByteBuf buffer() {
          return UNPOOLED.heapBuffer();
      }
  
      @Override
      public ByteBuf buffer(int initialCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity);
      }
  
      @Override
      public ByteBuf buffer(int initialCapacity, int maxCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity, maxCapacity);
      }
  
      @Override
      public ByteBuf ioBuffer() {
          return UNPOOLED.heapBuffer();
      }
  
      @Override
      public ByteBuf ioBuffer(int initialCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity);
      }
  
      @Override
      public ByteBuf ioBuffer(int initialCapacity, int maxCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity, maxCapacity);
      }
  
      @Override
      public ByteBuf heapBuffer() {
          return UNPOOLED.heapBuffer();
      }
  
      @Override
      public ByteBuf heapBuffer(int initialCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity);
      }
  
      @Override
      public ByteBuf heapBuffer(int initialCapacity, int maxCapacity) {
          return UNPOOLED.heapBuffer(initialCapacity, maxCapacity);
      }
  
      @Override
      public ByteBuf directBuffer() {
          return POOLED.directBuffer();
      }
  
      @Override
      public ByteBuf directBuffer(int initialCapacity) {
          return POOLED.directBuffer(initialCapacity);
      }
  
      @Override
      public ByteBuf directBuffer(int initialCapacity, int maxCapacity) {
          return POOLED.directBuffer(initialCapacity, maxCapacity);
      }
  
      @Override
      public CompositeByteBuf compositeBuffer() {
          return UNPOOLED.compositeHeapBuffer();
      }
  
      @Override
      public CompositeByteBuf compositeBuffer(int maxNumComponents) {
          return UNPOOLED.compositeHeapBuffer(maxNumComponents);
      }
  
      @Override
      public CompositeByteBuf compositeHeapBuffer() {
          return UNPOOLED.compositeHeapBuffer();
      }
  
      @Override
      public CompositeByteBuf compositeHeapBuffer(int maxNumComponents) {
          return UNPOOLED.compositeHeapBuffer(maxNumComponents);
      }
  
      @Override
      public CompositeByteBuf compositeDirectBuffer() {
          return POOLED.compositeDirectBuffer();
      }
  
      @Override
      public CompositeByteBuf compositeDirectBuffer(int maxNumComponents) {
          return POOLED.compositeDirectBuffer();
      }
  
      @Override
      public boolean isDirectBufferPooled() {
          return true;
      }
  
      @Override
      public int calculateNewCapacity(int minNewCapacity, int maxCapacity) {
          return POOLED.calculateNewCapacity(minNewCapacity, maxCapacity);
      }
  }
  