content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.worker.job;
  
  import alluxio.AbstractJobMasterClient;
  import alluxio.Constants;
  import alluxio.RuntimeConstants;
  import alluxio.grpc.GrpcUtils;
  import alluxio.grpc.JobCommand;
  import alluxio.grpc.JobHeartbeatPRequest;
  import alluxio.grpc.JobInfo;
  import alluxio.grpc.JobMasterWorkerServiceGrpc;
  import alluxio.grpc.RegisterJobWorkerPRequest;
  import alluxio.grpc.ServiceType;
  import alluxio.job.wire.JobWorkerHealth;
  import alluxio.util.CommonUtils;
  import alluxio.wire.WorkerNetAddress;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.util.List;
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * A wrapper for the gRPC client to interact with the job service master, used by job service
   * workers.
   */
  @ThreadSafe
  public final class RetryHandlingJobMasterClient extends AbstractJobMasterClient
      implements JobMasterClient {
    private static final Logger RPC_LOG = LoggerFactory.getLogger(JobMasterClient.class);
    private JobMasterWorkerServiceGrpc.JobMasterWorkerServiceBlockingStub mClient = null;
  
    /**
     * Creates a new job master client.
     *
     * @param conf job master client configuration
     */
    public RetryHandlingJobMasterClient(JobMasterClientContext conf) {
      super(conf);
    }
  
    @Override
    protected ServiceType getRemoteServiceType() {
      return ServiceType.JOB_MASTER_WORKER_SERVICE;
    }
  
    @Override
    protected String getServiceName() {
      return Constants.JOB_MASTER_WORKER_SERVICE_NAME;
    }
  
    @Override
    protected long getServiceVersion() {
      return Constants.JOB_MASTER_WORKER_SERVICE_VERSION;
    }
  
    @Override
    protected void afterConnect() {
      mClient = JobMasterWorkerServiceGrpc.newBlockingStub(mChannel);
    }
  
    @Override
    public long registerWorker(final WorkerNetAddress address) throws IOException {
      return retryRPC(() -> mClient.registerJobWorker(RegisterJobWorkerPRequest.newBuilder()
              .setWorkerNetAddress(GrpcUtils.toProto(address))
              .setVersion(RuntimeConstants.CURRENT_VERSION_INFO)
              .build()).getId(),
          RPC_LOG, "RegisterWorker", "address=%s", address);
    }
  
    @Override
    public List<JobCommand> heartbeat(final JobWorkerHealth jobWorkerHealth,
        final List<JobInfo> taskInfoList) throws IOException {
      return retryRPC(() ->
          mClient.heartbeat(JobHeartbeatPRequest.newBuilder()
              .setJobWorkerHealth(jobWorkerHealth.toProto()).addAllTaskInfos(taskInfoList).build())
              .getCommandsList(),
          RPC_LOG, "Heartbeat", "jobWorkerHealth=%s,taskInfoList=%s", jobWorkerHealth,
              CommonUtils.summarizeCollection(taskInfoList));
    }
  }
  