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.master.job;
  
  import alluxio.RpcUtils;
  import alluxio.RuntimeConstants;
  import alluxio.grpc.BuildVersion;
  import alluxio.grpc.GrpcUtils;
  import alluxio.grpc.JobHeartbeatPRequest;
  import alluxio.grpc.JobHeartbeatPResponse;
  import alluxio.grpc.JobMasterWorkerServiceGrpc;
  import alluxio.grpc.RegisterJobWorkerPRequest;
  import alluxio.grpc.RegisterJobWorkerPResponse;
  import alluxio.job.wire.JobWorkerHealth;
  import alluxio.job.wire.TaskInfo;
  
  import com.google.common.base.Preconditions;
  import com.google.common.collect.Lists;
  import io.grpc.stub.StreamObserver;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.util.List;
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * This class is a gRPC handler for job master RPCs invoked by a job service worker.
   */
  @ThreadSafe
  public final class JobMasterWorkerServiceHandler
      extends JobMasterWorkerServiceGrpc.JobMasterWorkerServiceImplBase {
    private static final Logger LOG = LoggerFactory.getLogger(JobMasterWorkerServiceHandler.class);
    private final JobMaster mJobMaster;
  
    /**
     * Creates a new instance of {@link JobMasterWorkerServiceHandler}.
     *
     * @param JobMaster the {@link JobMaster} that the handler uses internally
     */
    public JobMasterWorkerServiceHandler(JobMaster JobMaster) {
      mJobMaster = Preconditions.checkNotNull(JobMaster);
    }
  
    @Override
    public void heartbeat(JobHeartbeatPRequest request,
                          StreamObserver<JobHeartbeatPResponse> responseObserver) {
  
      RpcUtils.call(LOG, () -> {
        List<TaskInfo> wireTaskInfoList = Lists.newArrayList();
        for (alluxio.grpc.JobInfo taskInfo : request.getTaskInfosList()) {
          try {
            wireTaskInfoList.add(new TaskInfo(taskInfo));
          } catch (IOException e) {
            LOG.error("task info deserialization failed " + e);
          }
        }
        JobWorkerHealth jobWorkerHealth = new JobWorkerHealth(request.getJobWorkerHealth());
        return JobHeartbeatPResponse.newBuilder()
                .addAllCommands(mJobMaster.workerHeartbeat(jobWorkerHealth, wireTaskInfoList))
                .build();
      }, "heartbeat", "request=%s", responseObserver, request);
    }
  
    @Override
    public void registerJobWorker(RegisterJobWorkerPRequest request,
        StreamObserver<RegisterJobWorkerPResponse> responseObserver) {
      LOG.info("Received job worker {}", request);
      BuildVersion version = request.hasVersion() ? request.getVersion()
          : RuntimeConstants.UNKNOWN_VERSION_INFO;
      RpcUtils.call(LOG, () -> RegisterJobWorkerPResponse.newBuilder()
          .setId(mJobMaster.registerWorker(
              GrpcUtils.fromProto(request.getWorkerNetAddress()), version))
          .build(), "registerJobWorker", "request=%s", responseObserver, request);
    }
  }
  