code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.stack.core.util;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.ByteBufAllocator;
  import io.netty.buffer.CompositeByteBuf;
  import io.netty.buffer.PooledByteBufAllocator;
  
  public class BufferUtil {
  
      private static final ByteBufAllocator allocator = PooledByteBufAllocator.DEFAULT;
  
      /**
       * @return a pooled {@link CompositeByteBuf}.
       */
      public static CompositeByteBuf compositeBuffer() {
          return allocator.compositeBuffer();
      }
  
      /**
       * @return a pooled {@link ByteBuf} in <b>BIG ENDIAN</b> byte order.
       */
      public static ByteBuf pooledBuffer() {
          return allocator.buffer();
      }
  
      /**
       * @return a pooled {@link ByteBuf} in <b>BIG ENDIAN</b> byte order, with an initial capacity of
       * {@code initialCapacity}.
       */
      public static ByteBuf pooledBuffer(int initialCapacity) {
          return allocator.buffer(initialCapacity);
      }
  
  }
  