net.i2p.data

Class SessionTag

java.lang.Object

net.i2p.data.DataStructureImpl

net.i2p.data.SimpleDataStructure

net.i2p.data.SessionTag

All Implemented Interfaces:

Serializable, DataStructure

public class SessionTag
extends SimpleDataStructure

32 bytes, usually of random data. Changed from ByteArray to SimpleDataStructure in 0.8.2.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	BYTE_LENGTH

Fields inherited from class net.i2p.data.SimpleDataStructure

_data

Constructor Summary

Constructors

Constructor and Description
SessionTag()
SessionTag(boolean create)
SessionTag(byte[] val)

Method Summary

Modifier and Type	Method and Description
int	hashCode() SessionTags are generated both locally and by peers, in quantity, and are used as keys in several datastructures (see TransientSessionKeyManager), so we use a secure hashCode function.
int	length() The legal length of the byte array in this data structure
void	readBytes(InputStream in) Sets the data.
void	setData(byte[] data) Sets the data.

Methods inherited from class net.i2p.data.SimpleDataStructure

calculateHash, equals, fromBase64, fromByteArray, getData, toBase64, toByteArray, toString, writeBytes

Methods inherited from class net.i2p.data.DataStructureImpl

read

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

BYTE_LENGTH

public static final int BYTE_LENGTH

See Also:

Constant Field Values

Constructor Detail

SessionTag

public SessionTag()

SessionTag

public SessionTag(boolean create)

Parameters:

create - if true, instantiate the data array and fill it with random data.

SessionTag

public SessionTag(byte[] val)

Method Detail

length

public int length()

Description copied from class: SimpleDataStructure

The legal length of the byte array in this data structure

Specified by:

length in class SimpleDataStructure

setData

public void setData(byte[] data)

Description copied from class: SimpleDataStructure

Sets the data.

Overrides:

setData in class SimpleDataStructure

Parameters:

data - of correct length, or null

readBytes

public void readBytes(InputStream in)
               throws DataFormatException,
                      IOException

Description copied from class: SimpleDataStructure

Sets the data.

Specified by:

readBytes in interface DataStructure

Overrides:

readBytes in class SimpleDataStructure

Parameters:

in - the stream to read

Throws:

DataFormatException - if the data is improperly formatted

IOException - if there was a problem reading the stream

hashCode

public int hashCode()

SessionTags are generated both locally and by peers, in quantity, and are used as keys in several datastructures (see TransientSessionKeyManager), so we use a secure hashCode function.

Overrides:

hashCode in class SimpleDataStructure