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.sidecar.cluster;
  
  import java.util.Set;
  
  import org.apache.cassandra.sidecar.cluster.locator.InstanceSetByDc;
  import org.apache.cassandra.sidecar.common.data.ConsistencyVerificationResult;
  import org.jetbrains.annotations.NotNull;
  
  /**
   * Verifier to check the progress with the consistency level
   */
  public interface ConsistencyVerifier
  {
      /**
       * Verify the current progress and conclude a result
       *
       * @param succeeded current instances succeed
       * @param failed    current instances fail
       * @param all       all participant instances considering the replication strategy;
       *                  instances are grouped by dc
       * @return result
       */
      ConsistencyVerificationResult verify(@NotNull Set<String> succeeded, @NotNull Set<String> failed, @NotNull InstanceSetByDc all);
  }
  