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.test;
  
  import org.apache.kafka.clients.consumer.MockConsumer;
  import org.apache.kafka.common.PartitionInfo;
  import org.apache.kafka.common.utils.Time;
  import org.apache.kafka.streams.StreamsConfig;
  import org.apache.kafka.streams.processor.internals.InternalTopicConfig;
  import org.apache.kafka.streams.processor.internals.InternalTopicManager;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  public class MockInternalTopicManager extends InternalTopicManager {
  
      public final Map<String, Integer> readyTopics = new HashMap<>();
      private final MockConsumer<byte[], byte[]> restoreConsumer;
      private final boolean mockCreateInternalTopics;
  
      public MockInternalTopicManager(final Time time,
                                      final StreamsConfig streamsConfig,
                                      final MockConsumer<byte[], byte[]> restoreConsumer,
                                      final boolean mockCreateInternalTopics) {
          super(time, new MockClientSupplier().getAdmin(streamsConfig.originals()), streamsConfig);
  
          this.restoreConsumer = restoreConsumer;
          this.mockCreateInternalTopics = mockCreateInternalTopics;
      }
  
      @Override
      public Set<String> makeReady(final Map<String, InternalTopicConfig> topics) {
          for (final InternalTopicConfig topic : topics.values()) {
              final String topicName = topic.name();
              final int numberOfPartitions = topic.numberOfPartitions().orElseThrow();
              readyTopics.put(topicName, numberOfPartitions);
  
              final List<PartitionInfo> partitions = new ArrayList<>();
              for (int i = 0; i < numberOfPartitions; i++) {
                  partitions.add(new PartitionInfo(topicName, i, null, null, null));
              }
  
              restoreConsumer.updatePartitions(topicName, partitions);
          }
          return mockCreateInternalTopics ? topics.keySet() : Collections.emptySet();
      }
  
      @Override
      protected Map<String, Integer> getNumPartitions(final Set<String> topics,
                                                      final Set<String> tempUnknownTopics) {
          final Map<String, Integer> partitions = new HashMap<>();
          for (final String topic : topics) {
              partitions.put(topic, restoreConsumer.partitionsFor(topic) == null ?  null : restoreConsumer.partitionsFor(topic).size());
          }
  
          return partitions;
      }
  }
  