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.trogdor.workload;
  
  import org.apache.kafka.trogdor.common.StringExpander;
  import org.apache.kafka.trogdor.rest.Message;
  
  import com.fasterxml.jackson.annotation.JsonAnyGetter;
  import com.fasterxml.jackson.annotation.JsonAnySetter;
  import com.fasterxml.jackson.annotation.JsonCreator;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * TopicsSpec maps topic names to descriptions of the partitions in them.
   *
   * In JSON form, this is serialized as a map whose keys are topic names,
   * and whose entries are partition descriptions.
   * Keys may also refer to multiple partitions.  For example, this specification
   * refers to 3 topics foo1, foo2, and foo3:
   *
   * {
   *   "foo[1-3]" : {
   *      "numPartitions": 3
   *      "replicationFactor": 3
   *    }
   * }
   */
  public class TopicsSpec extends Message {
      public static final TopicsSpec EMPTY = new TopicsSpec().immutableCopy();
  
      private final Map<String, PartitionsSpec> map;
  
      @JsonCreator
      public TopicsSpec() {
          this.map = new HashMap<>();
      }
  
      private TopicsSpec(Map<String, PartitionsSpec> map) {
          this.map = map;
      }
  
      @JsonAnyGetter
      public Map<String, PartitionsSpec> get() {
          return map;
      }
  
      @JsonAnySetter
      public void set(String name, PartitionsSpec value) {
          map.put(name, value);
      }
  
      public TopicsSpec immutableCopy() {
          HashMap<String, PartitionsSpec> mapCopy = new HashMap<>();
          mapCopy.putAll(map);
          return new TopicsSpec(Collections.unmodifiableMap(mapCopy));
      }
  
      /**
       * Enumerate the partitions inside this TopicsSpec.
       *
       * @return      A map from topic names to PartitionsSpec objects.
       */
      public Map<String, PartitionsSpec> materialize() {
          HashMap<String, PartitionsSpec> all = new HashMap<>();
          for (Map.Entry<String, PartitionsSpec> entry : map.entrySet()) {
              String topicName = entry.getKey();
              PartitionsSpec partitions = entry.getValue();
              for (String expandedTopicName : StringExpander.expand(topicName))
                  all.put(expandedTopicName, partitions);
          }
          return all;
      }
  }
  