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.bifromq.basekv.client.scheduler;
  
  import org.apache.bifromq.basekv.client.IQueryPipeline;
  import org.apache.bifromq.basekv.store.proto.ROCoProcInput;
  import org.apache.bifromq.basekv.store.proto.ROCoProcOutput;
  import org.apache.bifromq.basescheduler.ICallTask;
  import com.google.protobuf.ByteString;
  import java.util.Iterator;
  import java.util.Queue;
  
  public class TestBatchQueryCall extends BatchQueryCall<ByteString, ByteString> {
      protected TestBatchQueryCall(IQueryPipeline pipeline, QueryCallBatcherKey batcherKey) {
          super(pipeline, batcherKey);
      }
  
      @Override
      protected ROCoProcInput makeBatch(Iterator<ByteString> byteStringIterator) {
          ByteString finalBS = ByteString.empty();
          while (byteStringIterator.hasNext()) {
              finalBS = finalBS.concat(byteStringIterator.next());
          }
          return ROCoProcInput.newBuilder()
              .setRaw(finalBS)
              .build();
      }
  
      @Override
      protected void handleOutput(Queue<ICallTask<ByteString, ByteString, QueryCallBatcherKey>> batchedTasks,
                                  ROCoProcOutput output) {
          ICallTask<ByteString, ByteString, QueryCallBatcherKey> task;
          while ((task = batchedTasks.poll()) != null) {
              // just echo the request
              task.resultPromise().complete(task.call());
          }
  
      }
  
      @Override
      protected void handleException(ICallTask<ByteString, ByteString, QueryCallBatcherKey> callTask, Throwable e) {
          callTask.resultPromise().completeExceptionally(e);
      }
  }
  