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   * 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
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  package org.apache.cassandra.hints;
  
  import java.util.Arrays;
  
  import javax.crypto.Cipher;
  
  import com.google.common.collect.ImmutableMap;
  import org.junit.Before;
  import org.junit.Test;
  
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.security.EncryptionContext;
  import org.apache.cassandra.security.EncryptionContextGenerator;
  
  public class HintsEncryptionTest extends AlteredHints
  {
      EncryptionContext encryptionContext;
      Cipher cipher;
  
      @Before
      public void setup()
      {
          encryptionContext = EncryptionContextGenerator.createContext(true);
          DatabaseDescriptor.setEncryptionContext(encryptionContext);
      }
  
      @Test
      public void encryptedHints() throws Exception
      {
          multiFlushAndDeserializeTest();
      }
  
      boolean looksLegit(HintsWriter writer)
      {
          if (!(writer instanceof EncryptedHintsWriter))
              return false;
  
          EncryptedHintsWriter encryptedHintsWriter = (EncryptedHintsWriter)writer;
          cipher = encryptedHintsWriter.getCipher();
  
          return encryptedHintsWriter.getCompressor().getClass().isAssignableFrom(encryptionContext.getCompressor().getClass());
      }
  
      boolean looksLegit(ChecksummedDataInput checksummedDataInput)
      {
          if (!(checksummedDataInput instanceof EncryptedChecksummedDataInput))
              return false;
  
          EncryptedChecksummedDataInput encryptedDataInput = (EncryptedChecksummedDataInput)checksummedDataInput;
  
          return Arrays.equals(cipher.getIV(), encryptedDataInput.getCipher().getIV()) &&
                 encryptedDataInput.getCompressor().getClass().isAssignableFrom(encryptionContext.getCompressor().getClass());
      }
  
      ImmutableMap<String, Object> params()
      {
          ImmutableMap<String, Object> compressionParams = ImmutableMap.<String, Object>builder()
                                                           .putAll(encryptionContext.toHeaderParameters())
                                                           .build();
          return ImmutableMap.<String, Object>builder()
                 .put(HintsDescriptor.ENCRYPTION, compressionParams)
                 .build();
      }
  }
  