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.io.Serializable;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import javax.annotation.Nullable;
  
  import com.google.common.annotations.VisibleForTesting;
  
  import org.apache.cassandra.db.ConsistencyLevel;
  import org.apache.cassandra.db.Keyspace;
  import org.apache.cassandra.diag.DiagnosticEvent;
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.service.reads.DigestResolver;
  import org.apache.cassandra.service.reads.DigestResolver.DigestResolverDebugResult;
  import org.apache.cassandra.service.reads.SpeculativeRetryPolicy;
  
  final class ReadRepairEvent extends DiagnosticEvent
  {
  
      private final ReadRepairEventType type;
      private final Keyspace keyspace;
      private final String tableName;
      private final String cqlCommand;
      private final ConsistencyLevel consistency;
      private final SpeculativeRetryPolicy.Kind speculativeRetry;
      @VisibleForTesting
      final Collection<InetAddressAndPort> destinations;
      @VisibleForTesting
      final Collection<InetAddressAndPort> allEndpoints;
      @Nullable
      private final DigestResolverDebugResult[] digestsByEndpoint;
  
      enum ReadRepairEventType
      {
          START_REPAIR,
          SPECULATED_READ
      }
  
      ReadRepairEvent(ReadRepairEventType type, AbstractReadRepair readRepair, Collection<InetAddressAndPort> destinations,
                      Collection<InetAddressAndPort> allEndpoints, DigestResolver digestResolver)
      {
          this.keyspace = readRepair.cfs.keyspace;
          this.tableName = readRepair.cfs.getTableName();
          this.cqlCommand = readRepair.command.toCQLString();
          this.consistency = readRepair.replicaPlan().consistencyLevel();
          this.speculativeRetry = readRepair.cfs.metadata().params.speculativeRetry.kind();
          this.destinations = destinations;
          this.allEndpoints = allEndpoints;
          this.digestsByEndpoint = digestResolver != null ? digestResolver.getDigestsByEndpoint() : null;
          this.type = type;
      }
  
      public ReadRepairEventType getType()
      {
          return type;
      }
  
      public Map<String, Serializable> toMap()
      {
          HashMap<String, Serializable> ret = new HashMap<>();
  
          ret.put("keyspace", keyspace.getName());
          ret.put("table", tableName);
          ret.put("command", cqlCommand);
          ret.put("consistency", consistency.name());
          ret.put("speculativeRetry", speculativeRetry.name());
  
          Set<String> eps = destinations.stream().map(Object::toString).collect(Collectors.toSet());
          ret.put("endpointDestinations", new HashSet<>(eps));
  
          if (digestsByEndpoint != null)
          {
              HashMap<String, Serializable> digestsMap = new HashMap<>();
              for (DigestResolverDebugResult digestsByEndpoint : digestsByEndpoint)
              {
                  HashMap<String, Serializable> digests = new HashMap<>();
                  digests.put("digestHex", digestsByEndpoint.digestHex);
                  digests.put("isDigestResponse", digestsByEndpoint.isDigestResponse);
                  digestsMap.put(digestsByEndpoint.from.toString(), digests);
              }
              ret.put("digestsByEndpoint", digestsMap);
          }
          if (allEndpoints != null)
          {
              eps = allEndpoints.stream().map(Object::toString).collect(Collectors.toSet());
              ret.put("allEndpoints", new HashSet<>(eps));
          }
          return ret;
      }
  }
  