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.connect.mirror.clients.admin;
  
  import org.apache.kafka.clients.admin.CreateAclsOptions;
  import org.apache.kafka.clients.admin.CreateAclsResult;
  import org.apache.kafka.clients.admin.CreatePartitionsOptions;
  import org.apache.kafka.clients.admin.CreatePartitionsResult;
  import org.apache.kafka.clients.admin.CreateTopicsOptions;
  import org.apache.kafka.clients.admin.CreateTopicsResult;
  import org.apache.kafka.clients.admin.ForwardingAdmin;
  import org.apache.kafka.clients.admin.NewPartitions;
  import org.apache.kafka.clients.admin.NewTopic;
  import org.apache.kafka.common.acl.AclBinding;
  import org.apache.kafka.common.errors.TopicExistsException;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.Collection;
  import java.util.Map;
  
  /** Customised ForwardingAdmin for testing only.
   * The class create/alter topics, partitions and ACLs in Kafka then store metadata in {@link FakeLocalMetadataStore}.
   * */
  
  public class FakeForwardingAdminWithLocalMetadata extends ForwardingAdmin {
      private static final Logger log = LoggerFactory.getLogger(FakeForwardingAdminWithLocalMetadata.class);
  
      public FakeForwardingAdminWithLocalMetadata(Map<String, Object> configs) {
          super(configs);
      }
  
      @Override
      public CreateTopicsResult createTopics(Collection<NewTopic> newTopics, CreateTopicsOptions options) {
          CreateTopicsResult createTopicsResult = super.createTopics(newTopics, options);
          newTopics.forEach(newTopic -> createTopicsResult.values().get(newTopic.name()).whenComplete((ignored, error) -> {
              if (error == null) {
                  FakeLocalMetadataStore.addTopicToLocalMetadataStore(newTopic);
              } else if (error.getCause() instanceof TopicExistsException) {
                  log.warn("Topic '{}' already exists. Update the local metadata store if absent", newTopic.name());
                  FakeLocalMetadataStore.addTopicToLocalMetadataStore(newTopic);
              } else {
                  log.error("Unable to intercept admin client operation", error);
              }
          }));
          return createTopicsResult;
      }
  
      @Override
      public CreatePartitionsResult createPartitions(Map<String, NewPartitions> newPartitions, CreatePartitionsOptions options) {
          CreatePartitionsResult createPartitionsResult = super.createPartitions(newPartitions, options);
          newPartitions.forEach((topic, newPartition) -> createPartitionsResult.values().get(topic).whenComplete((ignored, error) -> {
              if (error == null) {
                  FakeLocalMetadataStore.updatePartitionCount(topic, newPartition.totalCount());
              } else {
                  log.error("Unable to intercept admin client operation", error);
              }
          }));
          return createPartitionsResult;
      }
  
      @Override
      public CreateAclsResult createAcls(Collection<AclBinding> acls, CreateAclsOptions options) {
          CreateAclsResult aclsResult = super.createAcls(acls, options);
          aclsResult.values().forEach((aclBinding, future) -> future.whenComplete((ignored, error) -> {
              if (error == null) {
                  FakeLocalMetadataStore.addACLs(aclBinding.entry().principal(), aclBinding);
              } else {
                  log.error("Unable to intercept admin client operation", error);
              }
          }));
          return aclsResult;
      }
  }
  