Java Text.readFields方法代碼示例

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
/**
 * Read (say, deserialize) an employee
 */
@Override
public void readFields(DataInput in) throws IOException {
	name = new Text();
	name.readFields(in);
	address = new Text();
	address.readFields(in);
	company = new Text();
	company.readFields(in);
	salary = new DoubleWritable();
	salary.readFields(in);
	department = new Text();
	department.readFields(in);
	isManager = new BooleanWritable();
	isManager.readFields(in);
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public void readFields(DataInput dataInput) throws IOException {
    Text text = new Text();
    text.readFields(dataInput);

    Logger.println("value wrapper read class:"+text.toString());
    String className = text.toString();

    if (className.equals(IntWritable.class.getSimpleName())) {
        value = new IntWritable();
    } else if (className.equals(NewOldCustomElement.class.getSimpleName())) {
        value = new NewOldCustomElement();
    } else if (className.equals(CustomerFlowElement.class.getSimpleName())) {
        value = new CustomerFlowElement();
    } else {
       throw new IOException("can not read fields "+className);
    }
    value.readFields(dataInput);
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public void readFields(DataInput dataInput) throws IOException {
    Text text = new Text();
    text.readFields(dataInput);
    wifiProb = text.toString();

    LongWritable reader = new LongWritable();

    reader.readFields(dataInput);
    hour = reader.get();

    reader.readFields(dataInput);
    newCustomer = (int)reader.get();

    reader.readFields(dataInput);
    oldCustomer = (int)reader.get();
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
private void readOnDiskMapOutput(Configuration conf, FileSystem fs, Path path,
    List<String> keys, List<String> values) throws IOException {
  FSDataInputStream in = CryptoUtils.wrapIfNecessary(conf, fs.open(path));

  IFile.Reader<Text, Text> reader = new IFile.Reader<Text, Text>(conf, in,
      fs.getFileStatus(path).getLen(), null, null);
  DataInputBuffer keyBuff = new DataInputBuffer();
  DataInputBuffer valueBuff = new DataInputBuffer();
  Text key = new Text();
  Text value = new Text();
  while (reader.nextRawKey(keyBuff)) {
    key.readFields(keyBuff);
    keys.add(key.toString());
    reader.nextRawValue(valueBuff);
    value.readFields(valueBuff);
    values.add(value.toString());
  }
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public String[] getSorted() throws IOException {
  String[] ret = new String[indices.length];
  Text t = new Text();
  DataInputBuffer dib = new DataInputBuffer();
  for (int i = 0; i < ret.length; ++i) {
    int ii = indices[i];
    dib.reset(bytes, offsets[ii],
    ((ii + 1 == indices.length) ? eob : offsets[ii + 1]) - offsets[ii]);
    t.readFields(dib);
    ret[i] = t.toString();
  }
  return ret;
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
/**
 * Read (say, deserialize) a company
 */
@Override
public void readFields(DataInput in) throws IOException {
	name = new Text();
	name.readFields(in);

}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
/**
 * Read (say, deserialize) a department
 */
@Override
public void readFields(DataInput in) throws IOException {
	name = new Text();
	name.readFields(in);
	superDept = new Text();
	superDept.readFields(in);
	company = new Text();
	company.readFields(in);

}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public void readFields(DataInput dataInput) throws IOException {
    Text text = new Text();
    text.readFields(dataInput);
    wifiProb = text.toString();

    IntWritable intReader = new IntWritable();

    intReader.readFields(dataInput);
    inNoOutWifi = intReader.get();
    intReader.readFields(dataInput);
    inNoOutStore = intReader.get();

    intReader.readFields(dataInput);
    outNoInWifi = intReader.get();
    intReader.readFields(dataInput);
    outNoInStore = intReader.get();


    intReader.readFields(dataInput);
    inAndOutWifi = intReader.get();
    intReader.readFields(dataInput);
    inAndOutStore = intReader.get();

    intReader.readFields(dataInput);
    stayInWifi = intReader.get();
    intReader.readFields(dataInput);
    stayInStore = intReader.get();


    DoubleWritable doubleWritable = new DoubleWritable();
    doubleWritable.readFields(dataInput);
    jumpRate = doubleWritable.get();
    doubleWritable.readFields(dataInput);
    deepVisit = doubleWritable.get();
    doubleWritable.readFields(dataInput);
    inStoreRate = doubleWritable.get();

}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public void readFields(DataInput in) throws IOException {
  id = new org.apache.hadoop.mapreduce.JobID();
  id.readFields(in);
  user = new Text();
  user.readFields(in);
  jobSubmitDir = new Path(WritableUtils.readString(in));
}
 

import org.apache.hadoop.io.Text; //導入方法依賴的package包/類
public int compare(byte[] b1, int s1, int l1,
                   byte[] b2, int s2, int l2) {
  
  if (sortSpec == null) {
    return super.compare(b1, s1, l1, b2, s2, l2);
  }
  
  try {
    Text logline1 = new Text(); 
    logline1.readFields(new DataInputStream(new ByteArrayInputStream(b1, s1, l1)));
    String line1 = logline1.toString();
    String[] logColumns1 = line1.split(columnSeparator);
    
    Text logline2 = new Text(); 
    logline2.readFields(new DataInputStream(new ByteArrayInputStream(b2, s2, l2)));
    String line2 = logline2.toString();
    String[] logColumns2 = line2.split(columnSeparator);
    
    if (logColumns1 == null || logColumns2 == null) {
      return super.compare(b1, s1, l1, b2, s2, l2);
    }
    
    //Compare column-wise according to *sortSpec*
    for(int i=0; i < sortSpec.length; ++i) {
      int column = Integer.parseInt(sortSpec[i]);
      String c1 = logColumns1[column]; 
      String c2 = logColumns2[column];
      
      //Compare columns
      int comparision = super.compareBytes(
                              c1.getBytes(Charset.forName("UTF-8")), 0, c1.length(),
                              c2.getBytes(Charset.forName("UTF-8")), 0, c2.length()
                              );
      
      //They differ!
      if (comparision != 0) {
        return comparision;
      }
    }
    
  } catch (IOException ioe) {
    LOG.fatal("Caught " + ioe);
    return 0;
  }
  
  return 0;
}