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 com.datastax.oss.driver.internal.core.channel;
  
  import com.datastax.oss.driver.api.core.auth.SyncAuthenticator;
  import com.datastax.oss.protocol.internal.util.Bytes;
  import java.nio.ByteBuffer;
  
  /**
   * Dummy authenticator for our tests.
   *
   * <p>The initial response is hard-coded. When the server asks it to evaluate a challenge, it always
   * replies with the same token. When authentication succeeds, the success token is stored for later
   * inspection.
   */
  public class MockAuthenticator implements SyncAuthenticator {
    static final String INITIAL_RESPONSE = "0xcafebabe";
  
    volatile String successToken;
  
    @Override
    public ByteBuffer initialResponseSync() {
      return Bytes.fromHexString(INITIAL_RESPONSE);
    }
  
    @Override
    public ByteBuffer evaluateChallengeSync(ByteBuffer challenge) {
      return challenge;
    }
  
    @Override
    public void onAuthenticationSuccessSync(ByteBuffer token) {
      successToken = Bytes.toHexString(token);
    }
  }
  