ReversedLinesFileReader.FilePart

java.lang.Object

org.apache.commons.io.input.ReversedLinesFileReader.FilePart

Enclosing class:: ReversedLinesFileReader

private final class ReversedLinesFileReader.FilePart extends Object

Field Summary

Fields

Modifier and Type

Field

Description

private int

currentLastBytePos

private final byte[]

data

private byte[]

leftOver

private final long

partNumber
Constructor Summary

Constructors

Modifier

Constructor

Description

private

FilePart(long partNumber, int length, byte[] leftOverOfLastFilePart)

Constructs a new instance.
Method Summary

Modifier and Type

Method

Description

private void

createLeftOver()

Constructs the buffer containing any leftover bytes.

private int

getNewLineMatchByteCount(byte[] data, int i)

Finds the new-line sequence and return its length.

private String

readLine()

Reads a line.

private ReversedLinesFileReader.FilePart

rollOver()

Handles block rollover

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- partNumber
  
  private final long partNumber
- data
  
  private final byte[] data
- leftOver
  
  private byte[] leftOver
- currentLastBytePos
  
  private int currentLastBytePos
Constructor Details
- FilePart
  
  private FilePart(long partNumber, int length, byte[] leftOverOfLastFilePart) throws IOException
  
  Constructs a new instance.
  
  Parameters:
  
  partNumber - the part number.
  
  length - its length.
  
  leftOverOfLastFilePart - remainder.
  
  Throws:
  
  IOException - if there is a problem reading the file.
Method Details
- createLeftOver
  
  private void createLeftOver()
  
  Constructs the buffer containing any leftover bytes.
- getNewLineMatchByteCount
  
  private int getNewLineMatchByteCount(byte[] data, int i)
  
  Finds the new-line sequence and return its length.
  
  Parameters:
  
  data - buffer to scan.
  
  i - start offset in buffer.
  
  Returns:
  
  length of newline sequence or 0 if none found.
- readLine
  
  private String readLine()
  
  Reads a line.
  
  Returns:
  
  the line or null.
- rollOver
  
  private ReversedLinesFileReader.FilePart rollOver() throws IOException
  
  Handles block rollover
  
  Returns:
  
  the new FilePart or null.
  
  Throws:
  
  IOException - if there was a problem reading the file.