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 io.jafka.network.handlers;
  
  import io.jafka.api.FetchRequest;
  import io.jafka.api.MultiFetchRequest;
  import io.jafka.api.RequestKeys;
  import io.jafka.log.LogManager;
  import io.jafka.network.MessageSetSend;
  import io.jafka.network.MultiMessageSetSend;
  import io.jafka.network.Receive;
  import io.jafka.network.Send;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * handler for multi fetch request
   *
   * @author adyliu (imxylz@gmail.com)
   * @since 1.0
   */
  public class MultiFetchHandler extends FetchHandler {
  
      public MultiFetchHandler(LogManager logManager) {
          super(logManager);
      }
  
      public Send handler(RequestKeys requestType, Receive request) {
          MultiFetchRequest multiFetchRequest = MultiFetchRequest.readFrom(request.buffer());
          List<FetchRequest> fetches = multiFetchRequest.getFetches();
          if (logger.isDebugEnabled()) {
              logger.debug("Multifetch request objects size: " + fetches.size());
              for (FetchRequest fetch : fetches) {
                  logger.debug(fetch.toString());
              }
          }
          List<MessageSetSend> responses = new ArrayList<MessageSetSend>(fetches.size());
          for (FetchRequest fetch : fetches) {
              responses.add(readMessageSet(fetch));
          }
          return new MultiMessageSetSend(responses);
      }
  }