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.server.network;
  
  /**
   * Listener that is invoked when a connection is disconnected. This is useful for cases where the server
   * needs to perform cleanup tasks when a connection is disconnected.
   */
  public interface ConnectionDisconnectListener {
  
      /**
       * Invoked when a connection is disconnected.
       * <p>
       * <em>Note</em>: The method is invoked when the connection to the client is closed hence the
       * implementation of this method should not perform any blocking operations.
       *
       * @param connectionId The connection id as defined in {@link org.apache.kafka.common.requests.RequestContext}.
       *                     This id is unique for each connection.
       */
      void onDisconnect(String connectionId);
  }
  