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.kafka.streams.processor.internals;
  
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.streams.processor.TaskId;
  
  import java.util.Collection;
  import java.util.Map;
  import java.util.Set;
  
  public interface TasksRegistry {
  
      Map<TaskId, Set<TopicPartition>> drainPendingActiveTasksForTopologies(final Set<String> currentTopologies);
  
      Map<TaskId, Set<TopicPartition>> drainPendingStandbyTasksForTopologies(final Set<String> currentTopologies);
  
      void addPendingActiveTasksToCreate(final Map<TaskId, Set<TopicPartition>> pendingTasks);
  
      void addPendingStandbyTasksToCreate(final Map<TaskId, Set<TopicPartition>> pendingTasks);
  
      void clearPendingTasksToCreate();
  
      Set<Task> drainPendingTasksToInit();
  
      Set<Task> drainPendingActiveTasksToInit();
  
      Set<Task> pendingTasksToInit();
  
      void addPendingTasksToInit(final Collection<Task> tasks);
  
      boolean hasPendingTasksToInit();
  
      void addActiveTasks(final Collection<Task> tasks);
  
      void addStandbyTasks(final Collection<Task> tasks);
  
      void addTask(final Task task);
  
      void addFailedTask(final Task task);
  
      void removeTask(final Task taskToRemove);
  
      void replaceActiveWithStandby(final StandbyTask standbyTask);
  
      void replaceStandbyWithActive(final StreamTask activeTask);
  
      boolean updateActiveTaskInputPartitions(final Task task, final Set<TopicPartition> topicPartitions);
  
      void clear();
  
      Task activeTasksForInputPartition(final TopicPartition partition);
  
      Task task(final TaskId taskId);
  
      Collection<Task> tasks(final Collection<TaskId> taskIds);
  
      Collection<TaskId> activeTaskIds();
  
      Collection<Task> activeTasks();
  
      Set<Task> allTasks();
  
      Set<Task> allNonFailedTasks();
  
      Map<TaskId, Task> allTasksPerId();
  
      Set<TaskId> allTaskIds();
  
      boolean contains(final TaskId taskId);
  }
  