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.celeborn.common.network.buffer;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.ByteBuffer;
  
  import io.netty.buffer.ByteBufInputStream;
  import io.netty.buffer.Unpooled;
  
  /** A {@link ManagedBuffer} backed by {@link ByteBuffer}. */
  public class NioManagedBuffer extends ManagedBuffer {
    private final ByteBuffer buf;
  
    public NioManagedBuffer(ByteBuffer buf) {
      this.buf = buf;
    }
  
    @Override
    public long size() {
      return buf.remaining();
    }
  
    @Override
    public ByteBuffer nioByteBuffer() throws IOException {
      return buf.duplicate();
    }
  
    @Override
    public InputStream createInputStream() throws IOException {
      return new ByteBufInputStream(Unpooled.wrappedBuffer(buf));
    }
  
    @Override
    public ManagedBuffer retain() {
      return this;
    }
  
    @Override
    public ManagedBuffer release() {
      return this;
    }
  
    @Override
    public Object convertToNetty() throws IOException {
      return Unpooled.wrappedBuffer(buf);
    }
  
    @Override
    public Object convertToNettyForSsl() throws IOException {
      return Unpooled.wrappedBuffer(buf);
    }
  
    @Override
    public String toString() {
      return "NioManagedBuffer[buf=" + buf + "]";
    }
  }
  