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.service.reads.repair;
  
  import java.nio.ByteBuffer;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Set;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.collect.HashMultimap;
  import com.google.common.collect.Multimap;
  
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.utils.ByteBufferUtil;
  
  public class RepairedDataTracker
  {
      private final RepairedDataVerifier verifier;
  
      public final Multimap<ByteBuffer, InetAddressAndPort> digests = HashMultimap.create();
      public final Set<InetAddressAndPort> inconclusiveDigests = new HashSet<>();
  
      public RepairedDataTracker(RepairedDataVerifier verifier)
      {
          this.verifier = verifier;
      }
  
      public void recordDigest(InetAddressAndPort source, ByteBuffer digest, boolean isConclusive)
      {
          digests.put(digest, source);
          if (!isConclusive)
              inconclusiveDigests.add(source);
      }
  
      public void verify()
      {
          verifier.verify(this);
      }
  
      public String toString()
      {
          return MoreObjects.toStringHelper(this)
                            .add("digests", hexDigests())
                            .add("inconclusive", inconclusiveDigests).toString();
      }
  
      private Map<String, Collection<InetAddressAndPort>> hexDigests()
      {
          Map<String, Collection<InetAddressAndPort>> hexDigests = new HashMap<>();
          digests.asMap().forEach((k, v) -> hexDigests.put(ByteBufferUtil.bytesToHex(k), v));
          return hexDigests;
      }
  
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          RepairedDataTracker that = (RepairedDataTracker) o;
          return Objects.equals(digests, that.digests) &&
                 Objects.equals(inconclusiveDigests, that.inconclusiveDigests);
      }
  
      public int hashCode()
      {
          return Objects.hash(digests, inconclusiveDigests);
      }
  }
  