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;
  
  import alluxio.Constants;
  import alluxio.client.file.FileSystem;
  import alluxio.client.file.FileSystemContext;
  import alluxio.conf.Configuration;
  import alluxio.conf.PropertyKey;
  import alluxio.grpc.GrpcServerAddress;
  import alluxio.grpc.GrpcServerBuilder;
  import alluxio.grpc.JournalDomain;
  import alluxio.master.job.JobMaster;
  import alluxio.master.journal.DefaultJournalMaster;
  import alluxio.master.journal.JournalMaster;
  import alluxio.master.journal.JournalSystem;
  import alluxio.master.journal.JournalUtils;
  import alluxio.master.journal.raft.RaftJournalSystem;
  import alluxio.master.journal.ufs.UfsJournalSingleMasterPrimarySelector;
  import alluxio.master.service.rpc.RpcServerService;
  import alluxio.master.service.web.WebServerService;
  import alluxio.underfs.JobUfsManager;
  import alluxio.underfs.UfsManager;
  import alluxio.util.CommonUtils.ProcessType;
  import alluxio.util.URIUtils;
  import alluxio.util.network.NetworkAddressUtils.ServiceType;
  import alluxio.web.JobMasterWebServer;
  import alluxio.web.WebServer;
  
  import com.google.common.base.Preconditions;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.net.URI;
  import java.util.concurrent.TimeUnit;
  import javax.annotation.concurrent.NotThreadSafe;
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * This class is responsible for initializing the different masters that are configured to run.
   */
  @NotThreadSafe
  public class AlluxioJobMasterProcess extends AlluxioSimpleMasterProcess {
    private static final Logger LOG = LoggerFactory.getLogger(AlluxioJobMasterProcess.class);
  
    AlluxioJobMasterProcess(JournalSystem journalSystem, PrimarySelector leaderSelector) {
      super("job", JournalDomain.JOB_MASTER, journalSystem, leaderSelector,
          ServiceType.JOB_MASTER_WEB, ServiceType.JOB_MASTER_RPC, PropertyKey.JOB_MASTER_HOSTNAME);
      FileSystemContext fsContext = FileSystemContext.create(Configuration.global());
      FileSystem fileSystem = FileSystem.Factory.create(fsContext);
      UfsManager ufsManager = new JobUfsManager();
      try {
        MasterContext<UfsManager> context =
            new MasterContext<>(mJournalSystem, leaderSelector, null, ufsManager);
        // Create master.
        mRegistry.add(JobMaster.class, new JobMaster(context, fileSystem, fsContext, ufsManager));
        mRegistry.add(JournalMaster.class,
            new DefaultJournalMaster(JournalDomain.JOB_MASTER, context));
      } catch (Exception e) {
        LOG.error("Failed to create job master", e);
        throw new RuntimeException("Failed to create job master", e);
      }
    }
  
    /**
     * @return the {@link JobMaster} for this process
     */
    public JobMaster getJobMaster() {
      return mRegistry.get(JobMaster.class);
    }
  
    @Override
    public WebServer createWebServer() {
      return new JobMasterWebServer(ServiceType.JOB_MASTER_WEB.getServiceName(), mWebBindAddress,
                this);
    }
  
    @Override
    public GrpcServerBuilder createBaseRpcServer() {
      return GrpcServerBuilder
          .forAddress(GrpcServerAddress.create(mRpcConnectAddress.getHostName(), mRpcBindAddress),
              Configuration.global())
          .flowControlWindow(
              (int) Configuration.getBytes(PropertyKey.JOB_MASTER_NETWORK_FLOWCONTROL_WINDOW))
          .keepAliveTime(Configuration.getMs(PropertyKey.JOB_MASTER_NETWORK_KEEPALIVE_TIME_MS),
              TimeUnit.MILLISECONDS)
          .keepAliveTimeout(
              Configuration.getMs(PropertyKey.JOB_MASTER_NETWORK_KEEPALIVE_TIMEOUT_MS),
              TimeUnit.MILLISECONDS)
          .permitKeepAlive(
              Configuration.getMs(PropertyKey.JOB_MASTER_NETWORK_PERMIT_KEEPALIVE_TIME_MS),
              TimeUnit.MILLISECONDS)
          .maxInboundMessageSize((int) Configuration
              .getBytes(PropertyKey.JOB_MASTER_NETWORK_MAX_INBOUND_MESSAGE_SIZE));
    }
  
    /**
     * Factory for creating {@link AlluxioJobMasterProcess}.
     */
    @ThreadSafe
    static final class Factory {
      /**
       * @return a new instance of {@link AlluxioJobMasterProcess}
       */
      public static AlluxioJobMasterProcess create() {
        URI journalLocation = JournalUtils.getJournalLocation();
        JournalSystem journalSystem = new JournalSystem.Builder()
            .setLocation(URIUtils.appendPathOrDie(journalLocation, Constants.JOB_JOURNAL_NAME))
            .build(ProcessType.JOB_MASTER);
        final PrimarySelector primarySelector;
        if (Configuration.getBoolean(PropertyKey.ZOOKEEPER_ENABLED)) {
          Preconditions.checkState(!(journalSystem instanceof RaftJournalSystem),
              "Raft journal cannot be used with Zookeeper enabled");
          primarySelector = PrimarySelector.Factory.createZkJobPrimarySelector();
        } else if (journalSystem instanceof RaftJournalSystem) {
          primarySelector = ((RaftJournalSystem) journalSystem).getPrimarySelector();
        } else {
          primarySelector = new UfsJournalSingleMasterPrimarySelector();
        }
        AlluxioJobMasterProcess ajmp = new AlluxioJobMasterProcess(journalSystem, primarySelector);
        ajmp.registerService(
            RpcServerService.Factory.create(ajmp.getRpcBindAddress(), ajmp, ajmp.getRegistry()));
        ajmp.registerService(WebServerService.Factory.create(ajmp.getWebBindAddress(), ajmp));
        return ajmp;
      }
  
      private Factory() {} // prevent instantiation
    }
  }
  