Package org.klomp.snark

Class MagnetState

java.lang.Object

org.klomp.snark.MagnetState

class MagnetState
extends Object

Simple state for the download of the metainfo, shared between Peer and ExtensionHandler. Nothing is synchronized here! Caller must synchronize on this for everything! Reference: BEP 9

Since:

0.8.4 author zzz

Field Summary

Fields

Modifier and Type	Field	Description
static int	CHUNK_SIZE

Constructor Summary

Constructors

Constructor	Description
MagnetState(byte[] iHash, MetaInfo meta)

Method Summary

Modifier and Type	Method	Description
int	chunkSize(int chunk)
int	chunksRemaining()
byte[]	getChunk(int chunk)
MetaInfo	getMetaInfo()
int	getNextRequest()
int	getSize()
void	initialize(int size)	Call this for a new magnet when you have the size
boolean	isComplete()
boolean	isInitialized()
boolean	saveChunk(int chunk, byte[] data, int off, int length)
void	setMetaInfo(MetaInfo meta)	Call this for a new magnet when the download is complete.

Methods inherited from class java.lang.Object

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

Field Detail

CHUNK_SIZE

public static final int CHUNK_SIZE

See Also:

Constant Field Values

Constructor Detail

MagnetState

public MagnetState(byte[] iHash,
                   MetaInfo meta)

Parameters:

meta - null for new magnet

Method Detail

initialize

public void initialize(int size)

Call this for a new magnet when you have the size

Throws:

IllegalArgumentException

setMetaInfo

public void setMetaInfo(MetaInfo meta)

Call this for a new magnet when the download is complete.

Throws:

IllegalArgumentException

getMetaInfo

public MetaInfo getMetaInfo()

Throws:

IllegalArgumentException

getSize

public int getSize()

Throws:

IllegalArgumentException

isInitialized

public boolean isInitialized()

isComplete

public boolean isComplete()

chunkSize

public int chunkSize(int chunk)

chunksRemaining

public int chunksRemaining()

Returns:

chunk count

getNextRequest

public int getNextRequest()

Returns:

chunk number

getChunk

public byte[] getChunk(int chunk)

Throws:

IllegalArgumentException

saveChunk

public boolean saveChunk(int chunk,
                         byte[] data,
                         int off,
                         int length)
                  throws Exception

Returns:

true if this was the last piece

Throws:

NullPointerException - IllegalArgumentException, IOException, ...

Exception