io.milton.zsync

Class DataRange

java.lang.Object

io.milton.zsync.DataRange

public class DataRange
extends Object

An object consisting of a Range and a stream of bytes. If the number of bytes is beyond a certain threshold, the data is stored in a temporary file; otherwise, it is just stored in an array.

Author:

Nick

Field Summary

Fields

Modifier and Type	Field and Description
static int	threshold Once more than threshold bytes are written to data, the backing store is switched from a byte array to a temporary file

Constructor Summary

Constructors

Constructor and Description
DataRange(Range range, InputStream instream) Sets the range equal to the specified Range and pulls a number of bytes from the InputStream equal to the size of the range
DataRange(Range range, RandomAccessFile randAccess) Sets the range to the specified Range and seeks to the beginning of the range in the RandomAccessFile before copying bytes

Method Summary

Modifier and Type	Method and Description
InputStream	getInputStream() Returns the stream of bytes.
long	getLength() Returns the length of the Range (and the number of bytes in the byte stream)
Range	getRange()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

threshold

public static final int threshold

Once more than threshold bytes are written to data, the backing store is switched from a byte array to a temporary file

See Also:

Constant Field Values

Constructor Detail

DataRange

public DataRange(Range range,
                 InputStream instream)
          throws IOException

Sets the range equal to the specified Range and pulls a number of bytes from the InputStream equal to the size of the range

Parameters:

range - A Range object specifying the target location of the byte stream

instream - A stream from which the data portion will be pulled

Throws:

IOException

DataRange

public DataRange(Range range,
                 RandomAccessFile randAccess)
          throws IOException

Sets the range to the specified Range and seeks to the beginning of the range in the RandomAccessFile before copying bytes

Parameters:

range -

randAccess -

Throws:

IOException

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getRange

public Range getRange()

getInputStream

public InputStream getInputStream()

Returns the stream of bytes. If a temporary file is used to store data, it will be deleted when the returned stream is closed.

Returns:

The byte stream corresponding to range

getLength

public long getLength()

Returns the length of the Range (and the number of bytes in the byte stream)

Returns: