org.archive.wayback.resourceindex.ziplines

Class ZiplinedBlock

java.lang.Object

org.archive.wayback.resourceindex.ziplines.ZiplinedBlock

Direct Known Subclasses:

ZiplinedMultiBlock

public class ZiplinedBlock
extends Object

Author:

brad

Field Summary

Fields

Modifier and Type	Field and Description
static int	BLOCK_SIZE
static String	BYTES_HEADER
static String	BYTES_MINUS
static String	RANGE_HEADER

Constructor Summary

Constructors

Constructor and Description
ZiplinedBlock(String[] urlOrPaths, long offset)
ZiplinedBlock(String[] urlOrPaths, long offset, int count)

Method Summary

Methods

Modifier and Type	Method and Description
protected byte[]	attemptBlockLoad(BlockLoader remote)
BufferedReader	readBlock()
protected BufferedReader	readBlockEfficiently(BlockLoader remote)
protected BufferedReader	readBlockInefficiently()
void	setLoader(BlockLoader loader)

Methods inherited from class java.lang.Object

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

Field Detail

BLOCK_SIZE

public static final int BLOCK_SIZE

See Also:

Constant Field Values

RANGE_HEADER

public static final String RANGE_HEADER

See Also:

Constant Field Values

BYTES_HEADER

public static final String BYTES_HEADER

See Also:

Constant Field Values

BYTES_MINUS

public static final String BYTES_MINUS

See Also:

Constant Field Values

Constructor Detail

ZiplinedBlock

public ZiplinedBlock(String[] urlOrPaths,
             long offset)

Parameters:

urlOrPaths - Array of URLs where this file can be downloaded.

offset - start of 128K block boundary.

ZiplinedBlock

public ZiplinedBlock(String[] urlOrPaths,
             long offset,
             int count)

Parameters:

urlOrPaths - Array of URLs where this file can be downloaded.

offset - start of 128K block boundary.

count - number of records in this block

Method Detail

setLoader

public void setLoader(BlockLoader loader)

Parameters:

loader - the RemoteHttp11BlockLoader to use when fetching this block

readBlock

public BufferedReader readBlock()
                         throws IOException

Returns:

a BufferedReader of the underlying compressed data in this block

Throws:

IOException - for usual reasons

attemptBlockLoad

protected byte[] attemptBlockLoad(BlockLoader remote)

readBlockEfficiently

protected BufferedReader readBlockEfficiently(BlockLoader remote)
                                       throws IOException

Throws:

IOException

readBlockInefficiently

protected BufferedReader readBlockInefficiently()
                                         throws IOException

Throws:

IOException