org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptIdPBImpl.java Source code

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/**
 * 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.records.impl.pb;

import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationAttemptIdProto;
import org.apache.hadoop.yarn.proto.YarnProtos.ApplicationIdProto;

import com.google.common.base.Preconditions;

@Private
@Unstable
public class ApplicationAttemptIdPBImpl extends ApplicationAttemptId {
    ApplicationAttemptIdProto proto = null;
    ApplicationAttemptIdProto.Builder builder = null;
    private ApplicationId applicationId = null;

    public ApplicationAttemptIdPBImpl() {
        builder = ApplicationAttemptIdProto.newBuilder();
    }

    public ApplicationAttemptIdPBImpl(ApplicationAttemptIdProto proto) {
        this.proto = proto;
        this.applicationId = convertFromProtoFormat(proto.getApplicationId());
    }

    public ApplicationAttemptIdProto getProto() {
        return proto;
    }

    @Override
    public int getAttemptId() {
        Preconditions.checkNotNull(proto);
        return proto.getAttemptId();
    }

    @Override
    protected void setAttemptId(int attemptId) {
        Preconditions.checkNotNull(builder);
        builder.setAttemptId(attemptId);
    }

    @Override
    public ApplicationId getApplicationId() {
        return this.applicationId;
    }

    @Override
    public void setApplicationId(ApplicationId appId) {
        if (appId != null) {
            Preconditions.checkNotNull(builder);
            builder.setApplicationId(convertToProtoFormat(appId));
        }
        this.applicationId = appId;
    }

    private ApplicationIdPBImpl convertFromProtoFormat(ApplicationIdProto p) {
        return new ApplicationIdPBImpl(p);
    }

    private ApplicationIdProto convertToProtoFormat(ApplicationId t) {
        return ((ApplicationIdPBImpl) t).getProto();
    }

    @Override
    protected void build() {
        proto = builder.build();
        builder = null;
    }
}