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.distributed.api;
  
  import org.apache.cassandra.distributed.shared.FutureUtils;
  
  import java.util.Iterator;
  import java.util.UUID;
  import java.util.concurrent.Future;
  import java.util.function.BiConsumer;
  
  // The cross-version API requires that a Coordinator can be constructed without any constructor arguments
  public interface ICoordinator
  {
      int RETRIES = 10;
  
      default Object[][] executeWithRetries(String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      {
          for (int i = 0; i < RETRIES; i++)
          {
              {
                  try
                  {
                      return executeWithResult(query, consistencyLevel, boundValues).toObjectArrays();
                  }
                  catch (Throwable t)
                  {
                      if (t.getClass().getName().contains("Timeout"))
                          continue;
                      throw t;
                  }
              }
          }
          throw new IllegalStateException(String.format("Did not suceed with query after %d retries", RETRIES));
      }
  
      default Object[][] execute(String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      {
          return executeWithResult(query, consistencyLevel, boundValues).toObjectArrays();
      }
  
      default Object[][] execute(String query, ConsistencyLevel serialConsistencyLevel, ConsistencyLevel commitConsistencyLevel, Object... boundValues)
      {
          return executeWithResult(query, serialConsistencyLevel, commitConsistencyLevel, boundValues).toObjectArrays();
      }
  
      SimpleQueryResult executeWithResult(String query, ConsistencyLevel consistencyLevel, Object... boundValues);
      Future<?> executeWithResult(BiConsumer<SimpleQueryResult, Throwable> callback, String query, ConsistencyLevel consistencyLevel, Object... boundValues);
      Future<?> executeWithResult(BiConsumer<SimpleQueryResult, Throwable> callback, String query, ConsistencyLevel serialConsistencyLevel, ConsistencyLevel commitConsistencyLevel, Object... boundValues);
  
      default SimpleQueryResult executeWithResult(String query, ConsistencyLevel serialConsistencyLevel, ConsistencyLevel commitConsistencyLevel, Object... boundValues)
      {
          throw new UnsupportedOperationException();
      }
  
      default Iterator<Object[]> executeWithPaging(String query, ConsistencyLevel consistencyLevel, int pageSize, Object... boundValues)
      {
          return executeWithPagingWithResult(query, consistencyLevel, pageSize, boundValues).map(Row::toObjectArray);
      }
  
      QueryResult executeWithPagingWithResult(String query, ConsistencyLevel consistencyLevel, int pageSize, Object... boundValues);
  
      default Future<Object[][]> asyncExecuteWithTracing(UUID sessionId, String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      {
          return FutureUtils.map(asyncExecuteWithTracingWithResult(sessionId, query, consistencyLevel, boundValues), r -> r.toObjectArrays());
      }
  
      Future<SimpleQueryResult> asyncExecuteWithTracingWithResult(UUID sessionId, String query, ConsistencyLevel consistencyLevel, Object... boundValues);
      Future<SimpleQueryResult> asyncExecuteWithResult(String query, ConsistencyLevel consistencyLevel, Object... boundValues);
  
      default Object[][] executeWithTracing(UUID sessionId, String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      {
          return executeWithTracingWithResult(sessionId, query, consistencyLevel, boundValues).toObjectArrays();
      }
  
      default SimpleQueryResult executeWithTracingWithResult(UUID sessionId, String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      {
          return FutureUtils.waitOn(asyncExecuteWithTracingWithResult(sessionId, query, consistencyLevel, boundValues));
      }
  
      IInstance instance();
  }
  