hadoop CounterPBImpl 源码
haddop CounterPBImpl 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/records/impl/pb/CounterPBImpl.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.mapreduce.v2.api.records.impl.pb;
import org.apache.hadoop.mapreduce.v2.api.records.Counter;
import org.apache.hadoop.mapreduce.v2.proto.MRProtos.CounterProto;
import org.apache.hadoop.mapreduce.v2.proto.MRProtos.CounterProtoOrBuilder;
import org.apache.hadoop.yarn.api.records.impl.pb.ProtoBase;
public class CounterPBImpl extends ProtoBase<CounterProto> implements Counter {
CounterProto proto = CounterProto.getDefaultInstance();
CounterProto.Builder builder = null;
boolean viaProto = false;
public CounterPBImpl() {
builder = CounterProto.newBuilder();
}
public CounterPBImpl(CounterProto proto) {
this.proto = proto;
viaProto = true;
}
public CounterProto getProto() {
proto = viaProto ? proto : builder.build();
viaProto = true;
return proto;
}
private void maybeInitBuilder() {
if (viaProto || builder == null) {
builder = CounterProto.newBuilder(proto);
}
viaProto = false;
}
@Override
public String getName() {
CounterProtoOrBuilder p = viaProto ? proto : builder;
if (!p.hasName()) {
return null;
}
return (p.getName());
}
@Override
public void setName(String name) {
maybeInitBuilder();
if (name == null) {
builder.clearName();
return;
}
builder.setName((name));
}
@Override
public long getValue() {
CounterProtoOrBuilder p = viaProto ? proto : builder;
return (p.getValue());
}
@Override
public void setValue(long value) {
maybeInitBuilder();
builder.setValue((value));
}
@Override
public String getDisplayName() {
CounterProtoOrBuilder p = viaProto ? proto : builder;
if (!p.hasDisplayName()) {
return null;
}
return (p.getDisplayName());
}
@Override
public void setDisplayName(String displayName) {
maybeInitBuilder();
if (displayName == null) {
builder.clearDisplayName();
return;
}
builder.setDisplayName((displayName));
}
}
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