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.metadata;
  
  import org.apache.kafka.common.config.ConfigResource;
  import org.apache.kafka.common.config.ConfigResource.Type;
  
  import java.util.Properties;
  
  public interface ConfigRepository {
  
      /**
       * Return a copy of the topic configuration for the given topic. Future changes will not be reflected.
       *
       * @param topicName the name of the topic for which the configuration will be returned
       * @return a copy of the topic configuration for the given topic
       */
      default Properties topicConfig(String topicName) {
          return config(new ConfigResource(Type.TOPIC, topicName));
      }
  
      /**
       * Return a copy of the broker configuration for the given broker. Future changes will not be reflected.
       *
       * @param brokerId the id of the broker for which configuration will be returned
       * @return a copy of the broker configuration for the given broker
       */
      default Properties brokerConfig(int brokerId) {
          return config(new ConfigResource(Type.BROKER, Integer.toString(brokerId)));
      }
  
      /**
       * Return a copy of the group configuration for the given group. Future changes will not be reflected.
       *
       * @param groupName the name of the group for which configuration will be returned
       * @return a copy of the group configuration for the given group
       */
      default Properties groupConfig(String groupName) {
          return config(new ConfigResource(Type.GROUP, groupName));
      }
  
      /**
       * Return a copy of the configuration for the given resource. Future changes will not be reflected.
       *
       * @param configResource the resource for which the configuration will be returned
       * @return a copy of the configuration for the given resource
       */
      Properties config(ConfigResource configResource);
  }
  