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
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   */
  package org.apache.kafka.tiered.storage.actions;
  
  import org.apache.kafka.clients.admin.NewPartitionReassignment;
  import org.apache.kafka.clients.admin.TopicDescription;
  import org.apache.kafka.common.Node;
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.errors.UnknownTopicOrPartitionException;
  import org.apache.kafka.test.TestUtils;
  import org.apache.kafka.tiered.storage.TieredStorageTestAction;
  import org.apache.kafka.tiered.storage.TieredStorageTestContext;
  
  import java.io.PrintStream;
  import java.util.List;
  import java.util.Map;
  import java.util.Optional;
  import java.util.concurrent.ExecutionException;
  
  import static org.apache.kafka.tiered.storage.utils.TieredStorageTestUtils.describeTopic;
  
  public final class ReassignReplicaAction implements TieredStorageTestAction {
  
      private final TopicPartition topicPartition;
      private final List<Integer> replicaIds;
  
      public ReassignReplicaAction(TopicPartition topicPartition,
                                   List<Integer> replicaIds) {
          this.topicPartition = topicPartition;
          this.replicaIds = replicaIds;
      }
  
      @Override
      public void doExecute(TieredStorageTestContext context) throws InterruptedException, ExecutionException {
          String topic = topicPartition.topic();
          int partition = topicPartition.partition();
          Map<TopicPartition, Optional<NewPartitionReassignment>> proposed =
                  Map.of(topicPartition, Optional.of(new NewPartitionReassignment(replicaIds)));
          context.admin().alterPartitionReassignments(proposed);
  
          TestUtils.waitForCondition(() -> {
              try {
                  TopicDescription description = describeTopic(context, topic);
                  List<Integer> actualReplicaIds = description.partitions().get(partition).replicas()
                          .stream()
                          .map(Node::id)
                          .toList();
                  return replicaIds.equals(actualReplicaIds);
              } catch (ExecutionException e) {
                  if (e.getCause() instanceof UnknownTopicOrPartitionException) {
                      return false;
                  }
                  throw new RuntimeException(e);
              }
          }, "Unable to reassign the replicas of " + topicPartition + ", replica-ids: " + replicaIds);
      }
  
      @Override
      public void describe(PrintStream output) {
          output.printf("reassign-replica topic-partition: %s replica-ids: %s%n", topicPartition, replicaIds);
      }
  }
  