/*
 * 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.core.remoting.impl.netty;

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.
 */
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;
   }
}
