ApplicationAttemptStateDataPBImpl.java example

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hadoop-on-lustre2-master
/**
 * 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.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb;

import java.nio.ByteBuffer;

import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptIdPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.ContainerPBImpl;
import org.apache.hadoop.yarn.api.records.impl.pb.ProtoBase;
import org.apache.hadoop.yarn.api.records.impl.pb.ProtoUtils;
import org.apache.hadoop.yarn.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.proto.YarnProtos.FinalApplicationStatusProto;
import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ApplicationAttemptStateDataProto;
import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.ApplicationAttemptStateDataProtoOrBuilder;
import org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos.RMAppAttemptStateProto;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationAttemptStateData;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;

public class ApplicationAttemptStateDataPBImpl
extends ProtoBase<ApplicationAttemptStateDataProto> 
implements ApplicationAttemptStateData {
  private static final RecordFactory recordFactory = RecordFactoryProvider
      .getRecordFactory(null);

  ApplicationAttemptStateDataProto proto = 
      ApplicationAttemptStateDataProto.getDefaultInstance();
  ApplicationAttemptStateDataProto.Builder builder = null;
  boolean viaProto = false;
  
  private ApplicationAttemptId attemptId = null;
  private Container masterContainer = null;
  private ByteBuffer appAttemptTokens = null;

  public ApplicationAttemptStateDataPBImpl() {
    builder = ApplicationAttemptStateDataProto.newBuilder();
  }

  public ApplicationAttemptStateDataPBImpl(
      ApplicationAttemptStateDataProto proto) {
    this.proto = proto;
    viaProto = true;
  }
  
  public ApplicationAttemptStateDataProto getProto() {
    mergeLocalToProto();
    proto = viaProto ? proto : builder.build();
    viaProto = true;
    return proto;
  }

  private void mergeLocalToBuilder() {
    if (this.attemptId != null) {
      builder.setAttemptId(((ApplicationAttemptIdPBImpl)attemptId).getProto());
    }
    if(this.masterContainer != null) {
      builder.setMasterContainer(((ContainerPBImpl)masterContainer).getProto());
    }
    if(this.appAttemptTokens != null) {
      builder.setAppAttemptTokens(convertToProtoFormat(this.appAttemptTokens));
    }
  }

  private void mergeLocalToProto() {
    if (viaProto) 
      maybeInitBuilder();
    mergeLocalToBuilder();
    proto = builder.build();
    viaProto = true;
  }

  private void maybeInitBuilder() {
    if (viaProto || builder == null) {
      builder = ApplicationAttemptStateDataProto.newBuilder(proto);
    }
    viaProto = false;
  }

  @Override
  public ApplicationAttemptId getAttemptId() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if(attemptId != null) {
      return attemptId;
    }
    if (!p.hasAttemptId()) {
      return null;
    }
    attemptId = new ApplicationAttemptIdPBImpl(p.getAttemptId());
    return attemptId;
  }

  @Override
  public void setAttemptId(ApplicationAttemptId attemptId) {
    maybeInitBuilder();
    if (attemptId == null) {
      builder.clearAttemptId();
    }
    this.attemptId = attemptId;
  }

  @Override
  public Container getMasterContainer() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if(masterContainer != null) {
      return masterContainer;
    }
    if (!p.hasMasterContainer()) {
      return null;
    }
    masterContainer = new ContainerPBImpl(p.getMasterContainer());
    return masterContainer;
  }

  @Override
  public void setMasterContainer(Container container) {
    maybeInitBuilder();
    if (container == null) {
      builder.clearMasterContainer();
    }
    this.masterContainer = container;
  }

  @Override
  public ByteBuffer getAppAttemptTokens() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if(appAttemptTokens != null) {
      return appAttemptTokens;
    }
    if(!p.hasAppAttemptTokens()) {
      return null;
    }
    this.appAttemptTokens = convertFromProtoFormat(p.getAppAttemptTokens());
    return appAttemptTokens;
  }

  @Override
  public void setAppAttemptTokens(ByteBuffer attemptTokens) {
    maybeInitBuilder();
    if(attemptTokens == null) {
      builder.clearAppAttemptTokens();
    }
    this.appAttemptTokens = attemptTokens;
  }

  @Override
  public RMAppAttemptState getState() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if (!p.hasAppAttemptState()) {
      return null;
    }
    return convertFromProtoFormat(p.getAppAttemptState());
  }

  @Override
  public void setState(RMAppAttemptState state) {
    maybeInitBuilder();
    if (state == null) {
      builder.clearAppAttemptState();
      return;
    }
    builder.setAppAttemptState(convertToProtoFormat(state));
  }

  @Override
  public String getFinalTrackingUrl() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if (!p.hasFinalTrackingUrl()) {
      return null;
    }
    return p.getFinalTrackingUrl();
  }

  @Override
  public void setFinalTrackingUrl(String url) {
    maybeInitBuilder();
    if (url == null) {
      builder.clearFinalTrackingUrl();
      return;
    }
    builder.setFinalTrackingUrl(url);
  }

  @Override
  public String getDiagnostics() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if (!p.hasDiagnostics()) {
      return null;
    }
    return p.getDiagnostics();
  }

  @Override
  public void setDiagnostics(String diagnostics) {
    maybeInitBuilder();
    if (diagnostics == null) {
      builder.clearDiagnostics();
      return;
    }
    builder.setDiagnostics(diagnostics);
  }

  @Override
  public long getStartTime() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    return p.getStartTime();
  }

  @Override
  public void setStartTime(long startTime) {
    maybeInitBuilder();
    builder.setStartTime(startTime);
  }

  @Override
  public FinalApplicationStatus getFinalApplicationStatus() {
    ApplicationAttemptStateDataProtoOrBuilder p = viaProto ? proto : builder;
    if (!p.hasFinalApplicationStatus()) {
      return null;
    }
    return convertFromProtoFormat(p.getFinalApplicationStatus());
  }

  @Override
  public void setFinalApplicationStatus(FinalApplicationStatus finishState) {
    maybeInitBuilder();
    if (finishState == null) {
      builder.clearFinalApplicationStatus();
      return;
    }
    builder.setFinalApplicationStatus(convertToProtoFormat(finishState));
  }

  public static ApplicationAttemptStateData newApplicationAttemptStateData(
      ApplicationAttemptId attemptId, Container container,
      ByteBuffer attemptTokens, long startTime, RMAppAttemptState finalState,
      String finalTrackingUrl, String diagnostics,
      FinalApplicationStatus amUnregisteredFinalStatus) {
    ApplicationAttemptStateData attemptStateData =
        recordFactory.newRecordInstance(ApplicationAttemptStateData.class);
    attemptStateData.setAttemptId(attemptId);
    attemptStateData.setMasterContainer(container);
    attemptStateData.setAppAttemptTokens(attemptTokens);
    attemptStateData.setState(finalState);
    attemptStateData.setFinalTrackingUrl(finalTrackingUrl);
    attemptStateData.setDiagnostics(diagnostics);
    attemptStateData.setStartTime(startTime);
    attemptStateData.setFinalApplicationStatus(amUnregisteredFinalStatus);
    return attemptStateData;
  }

  private static String RM_APP_ATTEMPT_PREFIX = "RMATTEMPT_";
  public static RMAppAttemptStateProto convertToProtoFormat(RMAppAttemptState e) {
    return RMAppAttemptStateProto.valueOf(RM_APP_ATTEMPT_PREFIX + e.name());
  }
  public static RMAppAttemptState convertFromProtoFormat(RMAppAttemptStateProto e) {
    return RMAppAttemptState.valueOf(e.name().replace(RM_APP_ATTEMPT_PREFIX, ""));
  }

  private FinalApplicationStatusProto convertToProtoFormat(FinalApplicationStatus s) {
    return ProtoUtils.convertToProtoFormat(s);
  }
  private FinalApplicationStatus convertFromProtoFormat(FinalApplicationStatusProto s) {
    return ProtoUtils.convertFromProtoFormat(s);
  }

}