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 org.apache.cassandra.transport.CBUtil;
  import org.apache.cassandra.transport.Message;
  import io.netty.buffer.ByteBuf;
  import org.apache.cassandra.transport.ProtocolVersion;
  
  import java.nio.ByteBuffer;
  
  /**
   * SASL challenge sent from client to server
   */
  public class AuthChallenge extends Message.Response
  {
      public static final Message.Codec<AuthChallenge> codec = new Message.Codec<AuthChallenge>()
      {
          public AuthChallenge decode(ByteBuf body, ProtocolVersion version)
          {
              ByteBuffer b = CBUtil.readValue(body);
              byte[] token = new byte[b.remaining()];
              b.get(token);
              return new AuthChallenge(token);
          }
  
          public void encode(AuthChallenge challenge, ByteBuf dest, ProtocolVersion version)
          {
              CBUtil.writeValue(challenge.token, dest);
          }
  
          public int encodedSize(AuthChallenge challenge, ProtocolVersion version)
          {
              return CBUtil.sizeOfValue(challenge.token);
          }
      };
  
      private byte[] token;
  
      public AuthChallenge(byte[] token)
      {
          super(Message.Type.AUTH_CHALLENGE);
          this.token = token;
      }
  
      public byte[] getToken()
      {
          return token;
      }
  }
  