hadoop ContainerUpdateRequestPBImpl 源码

haddop ContainerUpdateRequestPBImpl 代码

文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/impl/pb/ContainerUpdateRequestPBImpl.java

/**
 * 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.api.protocolrecords.impl.pb;

import org.apache.hadoop.thirdparty.protobuf.TextFormat;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.security.proto.SecurityProtos.TokenProto;
import org.apache.hadoop.yarn.api.protocolrecords.ContainerUpdateRequest;
import org.apache.hadoop.yarn.api.records.Token;
import org.apache.hadoop.yarn.api.records.impl.pb.TokenPBImpl;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.ContainerUpdateRequestProto;
import org.apache.hadoop.yarn.proto.YarnServiceProtos.ContainerUpdateRequestProtoOrBuilder;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * <p>An implementation of <code>ContainerUpdateRequest</code>.</p>
 *
 * @see ContainerUpdateRequest
 */
@Private
@Unstable
public class ContainerUpdateRequestPBImpl extends ContainerUpdateRequest {
  private ContainerUpdateRequestProto proto =
      ContainerUpdateRequestProto.getDefaultInstance();
  private ContainerUpdateRequestProto.Builder builder = null;
  private boolean viaProto = false;

  private List<Token> containersToUpdate = null;

  public ContainerUpdateRequestPBImpl() {
    builder = ContainerUpdateRequestProto.newBuilder();
  }

  public ContainerUpdateRequestPBImpl(ContainerUpdateRequestProto proto) {
    this.proto = proto;
    viaProto = true;
  }

  @Override
  public List<Token> getContainersToUpdate() {
    if (containersToUpdate != null) {
      return containersToUpdate;
    }
    ContainerUpdateRequestProtoOrBuilder p = viaProto ? proto : builder;
    List<TokenProto> list = p.getUpdateContainerTokenList();
    containersToUpdate = new ArrayList<>();
    for (TokenProto c : list) {
      containersToUpdate.add(convertFromProtoFormat(c));
    }
    return containersToUpdate;
  }

  @Override
  public void setContainersToUpdate(List<Token> containersToUpdate) {
    maybeInitBuilder();
    if (containersToUpdate == null) {
      builder.clearUpdateContainerToken();
    }
    this.containersToUpdate = containersToUpdate;
  }

  @Override
  public int hashCode() {
    return getProto().hashCode();
  }

  @Override
  public boolean equals(Object other) {
    if (other == null) {
      return false;
    }
    if (other.getClass().isAssignableFrom(this.getClass())) {
      return this.getProto().equals(this.getClass().cast(other).getProto());
    }
    return false;
  }

  @Override
  public String toString() {
    return TextFormat.shortDebugString(getProto());
  }

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

  private Token convertFromProtoFormat(TokenProto p) {
    return new TokenPBImpl(p);
  }

  private TokenProto convertToProtoFormat(Token t) {
    return ((TokenPBImpl) t).getProto();
  }

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

  private void mergeLocalToBuilder() {
    if (this.containersToUpdate != null) {
      addUpdateContainersToProto();
    }
  }

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

  private void addUpdateContainersToProto() {
    maybeInitBuilder();
    builder.clearUpdateContainerToken();
    if (this.containersToUpdate == null) {
      return;
    }
    Iterable<TokenProto> iterable = new Iterable<TokenProto>() {
      @Override
      public Iterator<TokenProto> iterator() {
        return new Iterator<TokenProto>() {
          private Iterator<Token> iter = containersToUpdate.iterator();

          @Override
          public boolean hasNext() {
            return iter.hasNext();
          }

          @Override
          public TokenProto next() {
            return convertToProtoFormat(iter.next());
          }

          @Override
          public void remove() {
            throw new UnsupportedOperationException();
          }
        };
      }
    };
    builder.addAllUpdateContainerToken(iterable);
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AllocateRequestPBImpl 源码

hadoop AllocateResponsePBImpl 源码

hadoop CancelDelegationTokenRequestPBImpl 源码

hadoop CancelDelegationTokenResponsePBImpl 源码

hadoop CommitResponsePBImpl 源码

hadoop ContainerUpdateResponsePBImpl 源码

hadoop FailApplicationAttemptRequestPBImpl 源码

hadoop FailApplicationAttemptResponsePBImpl 源码

hadoop FinishApplicationMasterRequestPBImpl 源码

hadoop FinishApplicationMasterResponsePBImpl 源码