Package net.i2p.sam

Class SAMStreamSession

java.lang.Object

net.i2p.sam.SAMStreamSession

All Implemented Interfaces:

Closeable, AutoCloseable, SAMMessageSess

Direct Known Subclasses:

SAMv2StreamSession, SAMv3StreamSession

class SAMStreamSession
extends Object
implements SAMMessageSess

SAM STREAM session class.

Author:

human

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	SAMStreamSession.DisconnectListener
class	SAMStreamSession.SAMStreamSessionServer	SAM STREAM session server, running in its own thread.
class	SAMStreamSession.SAMStreamSessionSocketReader	SAM STREAM socket reader, running in its own thread.
class	SAMStreamSession.SAMv1StreamSessionSocketReader
protected static class	SAMStreamSession.StreamSender	Lets us push data through the stream without blocking, (even after exceeding the I2PSocket's buffer)

Field Summary

Fields

Modifier and Type	Field	Description
protected final boolean	_isOwnSession
protected final Log	_log
protected final boolean	canCreate
static final String	DEFAULT_FORCE_FLUSH
protected final boolean	forceFlush	should we flush every time we get a STREAM SEND, or leave that up to the streaming lib to decide?
static final String	PROP_FORCE_FLUSH
protected final SAMStreamReceiver	recv
protected final SAMStreamSession.SAMStreamSessionServer	server
protected static final int	SOCKET_HANDLER_BUF_SIZE
protected final I2PSocketManager	socketMgr

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SAMStreamSession(InputStream destStream, String dir, Properties props, SAMStreamReceiver recv)	Create a new SAM STREAM session.
	SAMStreamSession(String dest, String dir, Properties props, SAMStreamReceiver recv)	Create a new SAM STREAM session.
protected	SAMStreamSession(I2PSocketManager mgr, Properties props, SAMStreamReceiver recv, int listenport)	Create a new SAM STREAM session on an existing socket manager.

Method Summary

Modifier and Type	Method	Description
protected boolean	checkSocketHandlerId(int id)	Check whether a SAM STREAM session socket handler id is still in use.
void	close()	Close a SAM STREAM session.
boolean	closeConnection(int id)	Close a connection managed by the SAM STREAM session.
boolean	connect(int id, String dest, Properties props)	Connect the SAM STREAM session to the specified Destination
protected int	createSocketHandler(I2PSocket s, int id)	Create a new SAM STREAM session socket handler, detaching its thread.
Destination	getDestination()	Get the SAM STREAM session Destination.
int	getListenPort()
int	getListenProtocol()
protected SAMStreamSession.SAMStreamSessionSocketReader	getSocketReader(int id)	Get a SAM STREAM session socket handler.
protected SAMStreamSession.SAMStreamSessionSocketReader	newSAMStreamSessionSocketReader(I2PSocket s, int id)
protected SAMStreamSession.StreamSender	newStreamSender(I2PSocket s, int id)
protected void	removeSocketHandler(int id)	Remove and gracefully close a SAM STREAM session socket handler.
boolean	sendBytes(int id, InputStream in, int size)	Send bytes through a SAM STREAM session.
boolean	sendBytes(String s, byte[] b, int pr, int fp, int tp)	Unsupported
boolean	sendBytes(String s, byte[] b, int pr, int fp, int tp, boolean sendLeaseSet, int sendTags, int tagThreshold, int expiration)	Unsupported
(package private) boolean	setReceiveLimit(int id, long limit, boolean nolimit)
void	start()	Start a SAM message-based session.

Methods inherited from class java.lang.Object

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

Field Details

_log

protected final Log _log

SOCKET_HANDLER_BUF_SIZE

protected static final int SOCKET_HANDLER_BUF_SIZE

See Also:

• Constant Field Values

recv

protected final SAMStreamReceiver recv

server

protected final SAMStreamSession.SAMStreamSessionServer server

socketMgr

protected final I2PSocketManager socketMgr

canCreate

protected final boolean canCreate

_isOwnSession

protected final boolean _isOwnSession

forceFlush

protected final boolean forceFlush

should we flush every time we get a STREAM SEND, or leave that up to the streaming lib to decide?

PROP_FORCE_FLUSH

public static final String PROP_FORCE_FLUSH

See Also:

• Constant Field Values

DEFAULT_FORCE_FLUSH

public static final String DEFAULT_FORCE_FLUSH

See Also:

• Constant Field Values

Constructor Details

SAMStreamSession

public SAMStreamSession(String dest,
 String dir,
 Properties props,
 SAMStreamReceiver recv)
                 throws IOException,
DataFormatException,
SAMException

Create a new SAM STREAM session. Caller MUST call start().

Parameters:

dest - Base64-encoded destination and private keys, and optional offline signature section (same format as PrivateKeyFile)

dir - Session direction ("RECEIVE", "CREATE" or "BOTH") or "__v3__" if extended by SAMv3StreamSession

props - Properties to setup the I2P session

recv - Object that will receive incoming data

Throws:

IOException

DataFormatException

SAMException

SAMStreamSession

protected SAMStreamSession(InputStream destStream,
 String dir,
 Properties props,
 SAMStreamReceiver recv)
                    throws IOException,
DataFormatException,
SAMException

Create a new SAM STREAM session. Caller MUST call start().

Parameters:

destStream - Input stream containing the binary destination and private keys, and optional offline signature section (same format as PrivateKeyFile)

dir - Session direction ("RECEIVE", "CREATE" or "BOTH") or "__v3__" if extended by SAMv3StreamSession

props - Properties to setup the I2P session

recv - Object that will receive incoming data

Throws:

IOException

DataFormatException

SAMException

SAMStreamSession

protected SAMStreamSession(I2PSocketManager mgr,
 Properties props,
 SAMStreamReceiver recv,
 int listenport)
                    throws IOException,
DataFormatException,
SAMException

Create a new SAM STREAM session on an existing socket manager. v3 only.

Parameters:

props - Properties to setup the I2P session

recv - Object that will receive incoming data

Throws:

IOException

DataFormatException

SAMException

Since:

0.9.25

Method Details

start

public void start()

Description copied from interface: SAMMessageSess

Start a SAM message-based session. MUST be called after constructor.

Specified by:

start in interface SAMMessageSess

getListenProtocol

public int getListenProtocol()

Specified by:

getListenProtocol in interface SAMMessageSess

getListenPort

public int getListenPort()

Specified by:

getListenPort in interface SAMMessageSess

getDestination

public Destination getDestination()

Get the SAM STREAM session Destination.

Specified by:

getDestination in interface SAMMessageSess

Returns:

The SAM STREAM session Destination.

connect

public boolean connect(int id,
 String dest,
 Properties props)
                throws I2PException,
ConnectException,
NoRouteToHostException,
DataFormatException,
InterruptedIOException,
SAMInvalidDirectionException,
IOException

Connect the SAM STREAM session to the specified Destination

Parameters:

id - Unique id for the connection

dest - Base64-encoded Destination to connect to

props - Options to be used for connection

Returns:

true if successful

Throws:

DataFormatException - if the destination is not valid

SAMInvalidDirectionException - if trying to connect through a receive-only session

ConnectException - if the destination refuses connections

NoRouteToHostException - if the destination can't be reached

InterruptedIOException - if the connection timeouts

I2PException - if there's another I2P-related error

IOException

sendBytes

public boolean sendBytes(int id,
 InputStream in,
 int size)
                  throws IOException

Send bytes through a SAM STREAM session.

Parameters:

id - Stream Id

in - Datastream input

size - Count of bytes to send

Returns:

True if the data was queued for sending, false otherwise

Throws:

IOException

close

public void close()

Close a SAM STREAM session.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface SAMMessageSess

closeConnection

public boolean closeConnection(int id)

Close a connection managed by the SAM STREAM session.

Parameters:

id - Connection id

Returns:

true on success

sendBytes

public boolean sendBytes(String s,
 byte[] b,
 int pr,
 int fp,
 int tp)
                  throws I2PSessionException

Unsupported

Specified by:

sendBytes in interface SAMMessageSess

Parameters:

s - Destination

b - Bytes to be sent

Returns:

True if the data was sent, false otherwise

Throws:

I2PSessionException - always

Since:

0.9.25 moved from subclass SAMv3StreamSession to implement SAMMessageSess

sendBytes

public boolean sendBytes(String s,
 byte[] b,
 int pr,
 int fp,
 int tp,
 boolean sendLeaseSet,
 int sendTags,
 int tagThreshold,
 int expiration)
                  throws I2PSessionException

Unsupported

Specified by:

sendBytes in interface SAMMessageSess

Throws:

I2PSessionException - always

Since:

0.9.25

createSocketHandler

protected int createSocketHandler(I2PSocket s,
 int id)

Create a new SAM STREAM session socket handler, detaching its thread.

Parameters:

s - Socket to be handled

id - Socket id, or 0 if it must be auto-generated

Returns:

An id associated to the socket handler

getSocketReader

protected SAMStreamSession.SAMStreamSessionSocketReader getSocketReader(int id)

Get a SAM STREAM session socket handler.

Parameters:

id - Handler id

Returns:

SAM StreamSender handler

checkSocketHandlerId

protected boolean checkSocketHandlerId(int id)

Check whether a SAM STREAM session socket handler id is still in use.

Parameters:

id - Handler id

Returns:

True if in use

removeSocketHandler

protected void removeSocketHandler(int id)

Remove and gracefully close a SAM STREAM session socket handler.

Parameters:

id - Handler id to be removed

setReceiveLimit

boolean setReceiveLimit(int id,
 long limit,
 boolean nolimit)

newSAMStreamSessionSocketReader

protected SAMStreamSession.SAMStreamSessionSocketReader newSAMStreamSessionSocketReader(I2PSocket s,
 int id)
                                                                                 throws IOException

Throws:

IOException

newStreamSender

protected SAMStreamSession.StreamSender newStreamSender(I2PSocket s,
 int id)
                                                 throws IOException

Throws:

IOException