core/src/main/java/com/google/net/stubby/newtransport/netty/Utils.java

package com.google.net.stubby.newtransport.netty;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;

import java.nio.ByteBuffer;

/**
 * Common utility methods.
 */
class Utils {

  /**
   * Copies the content of the given {@link ByteBuffer} to a new {@link ByteBuf} instance.
   */
  static ByteBuf toByteBuf(ByteBufAllocator alloc, ByteBuffer source) {
    ByteBuf buf = alloc.buffer(source.remaining());
    buf.writeBytes(source);
    return buf;
  }

  private Utils() {
    // Prevents instantiation
  }
}