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.cassandra.transport.messages;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  import org.apache.cassandra.transport.Message;
  import org.apache.cassandra.transport.ProtocolVersion;
  
  public abstract class EncodeAndDecodeTestBase<T extends Message>
  {
      protected abstract Message.Codec<T> getCodec();
  
      protected T encodeThenDecode(T message, ProtocolVersion version)
      {
          int size = getCodec().encodedSize(message, version);
          ByteBuf buffer = Unpooled.buffer(size, size);
          getCodec().encode(message, buffer, version);
          return getCodec().decode(buffer, version);
      }
  }
  