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Java TypedBytesOutput类代码示例

本文整理汇总了Java中org.apache.hadoop.typedbytes.TypedBytesOutput的典型用法代码示例。如果您正苦于以下问题:Java TypedBytesOutput类的具体用法?Java TypedBytesOutput怎么用?Java TypedBytesOutput使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。


TypedBytesOutput类属于org.apache.hadoop.typedbytes包,在下文中一共展示了TypedBytesOutput类的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: go

import org.apache.hadoop.typedbytes.TypedBytesOutput; //导入依赖的package包/类
public void go() throws IOException {
  TypedBytesInput tbinput = new TypedBytesInput(new DataInputStream(System.in));
  TypedBytesOutput tboutput = new TypedBytesOutput(new DataOutputStream(System.out));

  Object key = tbinput.readRaw();
  while (key != null) {
    Object value = tbinput.read();
    for (String part : value.toString().split(find)) {
      tboutput.write(part);  // write key
      tboutput.write(1);     // write value
    }
    System.err.println("reporter:counter:UserCounters,InputLines,1");
    key = tbinput.readRaw();
  }
  
  System.out.flush();
}
 
开发者ID:naver,项目名称:hadoop,代码行数:18,代码来源:TypedBytesMapApp.java

示例2: go

import org.apache.hadoop.typedbytes.TypedBytesOutput; //导入依赖的package包/类
public void go() throws IOException {
  TypedBytesInput tbinput = new TypedBytesInput(new DataInputStream(System.in));
  TypedBytesOutput tboutput = new TypedBytesOutput(new DataOutputStream(System.out));
  
  Object prevKey = null;
  int sum = 0;
  Object key = tbinput.read();
  while (key != null) {
    if (prevKey != null && !key.equals(prevKey)) {
      tboutput.write(prevKey);  // write key
      tboutput.write(sum);      // write value
      sum = 0;
    }
    sum += (Integer) tbinput.read();
    prevKey = key;
    key = tbinput.read();
  }
  tboutput.write(prevKey);
  tboutput.write(sum);
  
  System.out.flush();
}
 
开发者ID:naver,项目名称:hadoop,代码行数:23,代码来源:TypedBytesReduceApp.java

示例3: dumpTypedBytes

import org.apache.hadoop.typedbytes.TypedBytesOutput; //导入依赖的package包/类
/**
 * Dump given list of files to standard output as typed bytes.
 */
@SuppressWarnings("unchecked")
private int dumpTypedBytes(List<FileStatus> files) throws IOException {
  JobConf job = new JobConf(getConf()); 
  DataOutputStream dout = new DataOutputStream(System.out);
  AutoInputFormat autoInputFormat = new AutoInputFormat();
  for (FileStatus fileStatus : files) {
    FileSplit split = new FileSplit(fileStatus.getPath(), 0,
      fileStatus.getLen() * fileStatus.getBlockSize(),
      (String[]) null);
    RecordReader recReader = null;
    try {
      recReader = autoInputFormat.getRecordReader(split, job, Reporter.NULL);
      Object key = recReader.createKey();
      Object value = recReader.createValue();
      while (recReader.next(key, value)) {
        if (key instanceof Writable) {
          TypedBytesWritableOutput.get(dout).write((Writable) key);
        } else {
          TypedBytesOutput.get(dout).write(key);
        }
        if (value instanceof Writable) {
          TypedBytesWritableOutput.get(dout).write((Writable) value);
        } else {
          TypedBytesOutput.get(dout).write(value);
        }
      }
    } finally {
      if (recReader != null) {
        recReader.close();
      }
    }
  }
  dout.flush();
  return 0;
}
 
开发者ID:naver,项目名称:hadoop,代码行数:39,代码来源:DumpTypedBytes.java

示例4: initialize

import org.apache.hadoop.typedbytes.TypedBytesOutput; //导入依赖的package包/类
@Override
public void initialize(PipeMapRed pipeMapRed) throws IOException {
  super.initialize(pipeMapRed);
  DataOutput clientOut = pipeMapRed.getClientOutput();
  tbOut = new TypedBytesOutput(clientOut);
  tbwOut = new TypedBytesWritableOutput(clientOut);
}
 
开发者ID:naver,项目名称:hadoop,代码行数:8,代码来源:TypedBytesInputWriter.java


注:本文中的org.apache.hadoop.typedbytes.TypedBytesOutput类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。