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.common.test.api;
  
  import java.lang.annotation.Documented;
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  
  @Documented
  @Target({ElementType.ANNOTATION_TYPE})
  @Retention(RetentionPolicy.RUNTIME)
  public @interface ClusterConfigProperty {
      /**
       * The config applies to the controller/broker with specified id. Default is -1, indicating the property applied to
       * all controller/broker servers. Note that the "controller" here refers to the KRaft quorum controller.
       * The id can vary depending on the different {@link org.apache.kafka.common.test.api.Type}.
       * <ul>
       *  <li> Under {@link org.apache.kafka.common.test.api.Type#KRAFT}, the broker id starts from
       *  {@link org.apache.kafka.common.test.api.TestKitDefaults#BROKER_ID_OFFSET 0}, the controller id
       *  starts from {@link org.apache.kafka.common.test.api.TestKitDefaults#CONTROLLER_ID_OFFSET 3000}
       *  and increases by 1 with each addition broker/controller.</li>
       *  <li> Under {@link org.apache.kafka.common.test.api.Type#CO_KRAFT}, the broker id and controller id both start from
       *  {@link org.apache.kafka.common.test.api.TestKitDefaults#BROKER_ID_OFFSET 0}
       *  and increases by 1 with each additional broker/controller.</li>
       * </ul>
       *
       * If the id doesn't correspond to any broker/controller server, throw IllegalArgumentException
       * @return the controller/broker id
       */
      int id() default -1;
      String key();
      String value();
  }
  