/*
    * Copyright 2016 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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 io.netty.buffer;
  
  import io.netty.util.ByteProcessor;
  import io.netty.util.internal.ObjectPool;
  import io.netty.util.internal.ObjectPool.Handle;
  import io.netty.util.internal.ObjectPool.ObjectCreator;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.nio.ByteBuffer;
  import java.nio.channels.FileChannel;
  import java.nio.channels.GatheringByteChannel;
  import java.nio.channels.ScatteringByteChannel;
  
  final class PooledDuplicatedByteBuf extends AbstractPooledDerivedByteBuf {
  
      private static final ObjectPool<PooledDuplicatedByteBuf> RECYCLER = ObjectPool.newPool(
              new ObjectCreator<PooledDuplicatedByteBuf>() {
          @Override
          public PooledDuplicatedByteBuf newObject(Handle<PooledDuplicatedByteBuf> handle) {
              return new PooledDuplicatedByteBuf(handle);
          }
      });
  
      static PooledDuplicatedByteBuf newInstance(AbstractByteBuf unwrapped, ByteBuf wrapped,
                                                 int readerIndex, int writerIndex) {
          final PooledDuplicatedByteBuf duplicate = RECYCLER.get();
          duplicate.init(unwrapped, wrapped, readerIndex, writerIndex, unwrapped.maxCapacity());
          duplicate.markReaderIndex();
          duplicate.markWriterIndex();
  
          return duplicate;
      }
  
      private PooledDuplicatedByteBuf(Handle<PooledDuplicatedByteBuf> handle) {
          super(handle);
      }
  
      @Override
      public int capacity() {
          return unwrap().capacity();
      }
  
      @Override
      public ByteBuf capacity(int newCapacity) {
          unwrap().capacity(newCapacity);
          return this;
      }
  
      @Override
      public int arrayOffset() {
          return unwrap().arrayOffset();
      }
  
      @Override
      public long memoryAddress() {
          return unwrap().memoryAddress();
      }
  
      @Override
      public ByteBuffer nioBuffer(int index, int length) {
          return unwrap().nioBuffer(index, length);
      }
  
      @Override
      public ByteBuffer[] nioBuffers(int index, int length) {
          return unwrap().nioBuffers(index, length);
      }
  
      @Override
      public ByteBuf copy(int index, int length) {
          return unwrap().copy(index, length);
      }
  
      @Override
      public ByteBuf retainedSlice(int index, int length) {
          return PooledSlicedByteBuf.newInstance(unwrap(), this, index, length);
      }
  
      @Override
      public ByteBuf duplicate() {
          return duplicate0().setIndex(readerIndex(), writerIndex());
     }
 
     @Override
     public ByteBuf retainedDuplicate() {
         return PooledDuplicatedByteBuf.newInstance(unwrap(), this, readerIndex(), writerIndex());
     }
 
     @Override
     public byte getByte(int index) {
         return unwrap().getByte(index);
     }
 
     @Override
     protected byte _getByte(int index) {
         return unwrap()._getByte(index);
     }
 
     @Override
     public short getShort(int index) {
         return unwrap().getShort(index);
     }
 
     @Override
     protected short _getShort(int index) {
         return unwrap()._getShort(index);
     }
 
     @Override
     public short getShortLE(int index) {
         return unwrap().getShortLE(index);
     }
 
     @Override
     protected short _getShortLE(int index) {
         return unwrap()._getShortLE(index);
     }
 
     @Override
     public int getUnsignedMedium(int index) {
         return unwrap().getUnsignedMedium(index);
     }
 
     @Override
     protected int _getUnsignedMedium(int index) {
         return unwrap()._getUnsignedMedium(index);
     }
 
     @Override
     public int getUnsignedMediumLE(int index) {
         return unwrap().getUnsignedMediumLE(index);
     }
 
     @Override
     protected int _getUnsignedMediumLE(int index) {
         return unwrap()._getUnsignedMediumLE(index);
     }
 
     @Override
     public int getInt(int index) {
         return unwrap().getInt(index);
     }
 
     @Override
     protected int _getInt(int index) {
         return unwrap()._getInt(index);
     }
 
     @Override
     public int getIntLE(int index) {
         return unwrap().getIntLE(index);
     }
 
     @Override
     protected int _getIntLE(int index) {
         return unwrap()._getIntLE(index);
     }
 
     @Override
     public long getLong(int index) {
         return unwrap().getLong(index);
     }
 
     @Override
     protected long _getLong(int index) {
         return unwrap()._getLong(index);
     }
 
     @Override
     public long getLongLE(int index) {
         return unwrap().getLongLE(index);
     }
 
     @Override
     protected long _getLongLE(int index) {
         return unwrap()._getLongLE(index);
     }
 
     @Override
     public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
         unwrap().getBytes(index, dst, dstIndex, length);
         return this;
     }
 
     @Override
     public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
         unwrap().getBytes(index, dst, dstIndex, length);
         return this;
     }
 
     @Override
     public ByteBuf getBytes(int index, ByteBuffer dst) {
         unwrap().getBytes(index, dst);
         return this;
     }
 
     @Override
     public ByteBuf setByte(int index, int value) {
         unwrap().setByte(index, value);
         return this;
     }
 
     @Override
     protected void _setByte(int index, int value) {
         unwrap()._setByte(index, value);
     }
 
     @Override
     public ByteBuf setShort(int index, int value) {
         unwrap().setShort(index, value);
         return this;
     }
 
     @Override
     protected void _setShort(int index, int value) {
         unwrap()._setShort(index, value);
     }
 
     @Override
     public ByteBuf setShortLE(int index, int value) {
         unwrap().setShortLE(index, value);
         return this;
     }
 
     @Override
     protected void _setShortLE(int index, int value) {
         unwrap()._setShortLE(index, value);
     }
 
     @Override
     public ByteBuf setMedium(int index, int value) {
         unwrap().setMedium(index, value);
         return this;
     }
 
     @Override
     protected void _setMedium(int index, int value) {
         unwrap()._setMedium(index, value);
     }
 
     @Override
     public ByteBuf setMediumLE(int index, int value) {
         unwrap().setMediumLE(index, value);
         return this;
     }
 
     @Override
     protected void _setMediumLE(int index, int value) {
         unwrap()._setMediumLE(index, value);
     }
 
     @Override
     public ByteBuf setInt(int index, int value) {
         unwrap().setInt(index, value);
         return this;
     }
 
     @Override
     protected void _setInt(int index, int value) {
         unwrap()._setInt(index, value);
     }
 
     @Override
     public ByteBuf setIntLE(int index, int value) {
         unwrap().setIntLE(index, value);
         return this;
     }
 
     @Override
     protected void _setIntLE(int index, int value) {
         unwrap()._setIntLE(index, value);
     }
 
     @Override
     public ByteBuf setLong(int index, long value) {
         unwrap().setLong(index, value);
         return this;
     }
 
     @Override
     protected void _setLong(int index, long value) {
         unwrap()._setLong(index, value);
     }
 
     @Override
     public ByteBuf setLongLE(int index, long value) {
         unwrap().setLongLE(index, value);
         return this;
     }
 
     @Override
     protected void _setLongLE(int index, long value) {
         unwrap().setLongLE(index, value);
     }
 
     @Override
     public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
         unwrap().setBytes(index, src, srcIndex, length);
         return this;
     }
 
     @Override
     public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
         unwrap().setBytes(index, src, srcIndex, length);
         return this;
     }
 
     @Override
     public ByteBuf setBytes(int index, ByteBuffer src) {
         unwrap().setBytes(index, src);
         return this;
     }
 
     @Override
     public ByteBuf getBytes(int index, OutputStream out, int length)
             throws IOException {
         unwrap().getBytes(index, out, length);
         return this;
     }
 
     @Override
     public int getBytes(int index, GatheringByteChannel out, int length)
             throws IOException {
         return unwrap().getBytes(index, out, length);
     }
 
     @Override
     public int getBytes(int index, FileChannel out, long position, int length)
             throws IOException {
         return unwrap().getBytes(index, out, position, length);
     }
 
     @Override
     public int setBytes(int index, InputStream in, int length)
             throws IOException {
         return unwrap().setBytes(index, in, length);
     }
 
     @Override
     public int setBytes(int index, ScatteringByteChannel in, int length)
             throws IOException {
         return unwrap().setBytes(index, in, length);
     }
 
     @Override
     public int setBytes(int index, FileChannel in, long position, int length)
             throws IOException {
         return unwrap().setBytes(index, in, position, length);
     }
 
     @Override
     public int forEachByte(int index, int length, ByteProcessor processor) {
         return unwrap().forEachByte(index, length, processor);
     }
 
     @Override
     public int forEachByteDesc(int index, int length, ByteProcessor processor) {
         return unwrap().forEachByteDesc(index, length, processor);
     }
 }