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.
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  package org.apache.kafka.tiered.storage.actions;
  
  import org.apache.kafka.clients.admin.AlterReplicaLogDirsResult;
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.TopicPartitionReplica;
  import org.apache.kafka.test.TestUtils;
  import org.apache.kafka.tiered.storage.TieredStorageTestAction;
  import org.apache.kafka.tiered.storage.TieredStorageTestContext;
  import org.apache.kafka.tiered.storage.utils.BrokerLocalStorage;
  
  import java.io.File;
  import java.io.PrintStream;
  import java.util.Map;
  import java.util.Optional;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.TimeoutException;
  
  public final class AlterLogDirAction implements TieredStorageTestAction {
  
      private final TopicPartition topicPartition;
      private final int brokerId;
  
      public AlterLogDirAction(TopicPartition topicPartition,
                               int brokerId) {
          this.topicPartition = topicPartition;
          this.brokerId = brokerId;
      }
  
      @Override
      public void doExecute(TieredStorageTestContext context) throws InterruptedException, ExecutionException, TimeoutException {
          Optional<BrokerLocalStorage> localStorage = context.localStorages().stream().filter(storage -> storage.getBrokerId() == brokerId).findFirst();
          if (localStorage.isEmpty()) {
              throw new IllegalArgumentException("cannot find local storage for this topic partition:" + topicPartition + " in this broker id:" + brokerId);
          }
  
          Optional<File> sourceDir = localStorage.get().getBrokerStorageDirectories().stream().filter(dir -> localStorage.get().dirContainsTopicPartition(topicPartition, dir)).findFirst();
          if (sourceDir.isEmpty()) {
              throw new IllegalArgumentException("No log dir with topic partition:" + topicPartition + " in this broker id:" + brokerId);
          }
          Optional<File> targetDir = localStorage.get().getBrokerStorageDirectories().stream().filter(dir -> !localStorage.get().dirContainsTopicPartition(topicPartition, dir)).findFirst();
          if (targetDir.isEmpty()) {
              throw new IllegalArgumentException("No log dir without topic partition:" + topicPartition + " in this broker id:" + brokerId);
          }
  
          // build alterReplicaLogDirs request content to move from sourceDir to targetDir
          TopicPartitionReplica topicPartitionReplica = new TopicPartitionReplica(topicPartition.topic(), topicPartition.partition(), brokerId);
          Map<TopicPartitionReplica, String> logDirs = Map.of(topicPartitionReplica, targetDir.get().getAbsolutePath());
  
          AlterReplicaLogDirsResult results = context.admin().alterReplicaLogDirs(logDirs);
          results.values().get(topicPartitionReplica).get(30, TimeUnit.SECONDS);
  
          // wait until the topic partition folder disappears from source dir and appears in the target dir
          TestUtils.waitForCondition(() -> localStorage.get().dirContainsTopicPartition(topicPartition, targetDir.get()) &&
                      !localStorage.get().dirContainsTopicPartition(topicPartition, sourceDir.get()),
                  "Failed to alter dir:" + logDirs);
      }
  
      @Override
      public void describe(PrintStream output) {
          output.print("alter dir for topic partition:" + topicPartition + " in this broker id:" + brokerId);
      }
  }
  