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

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Here is the source code for org.apache.hadoop.yarn.api.records.impl.pb.PriorityPBImpl.java

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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.Priority;
import org.apache.hadoop.yarn.proto.YarnProtos.PriorityProto;
import org.apache.hadoop.yarn.proto.YarnProtos.PriorityProtoOrBuilder;

@Private
@Unstable
public class PriorityPBImpl extends Priority {
    PriorityProto proto = PriorityProto.getDefaultInstance();
    PriorityProto.Builder builder = null;
    boolean viaProto = false;

    public PriorityPBImpl() {
        builder = PriorityProto.newBuilder();
    }

    public PriorityPBImpl(PriorityProto proto) {
        this.proto = proto;
        viaProto = true;
    }

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

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

    @Override
    public int getPriority() {
        PriorityProtoOrBuilder p = viaProto ? proto : builder;
        return (p.getPriority());
    }

    @Override
    public void setPriority(int priority) {
        maybeInitBuilder();
        builder.setPriority((priority));
    }

    @Override
    public String toString() {
        return Integer.toString(getPriority());
    }

}