stream.net

Class Connection

java.lang.Object

stream.net.Connection

All Implemented Interfaces:

Runnable

public class Connection
extends Object
implements Runnable

This thread represents one client.
It maintains all resources associated with the client:

• The socket
• The object send buffer
• The OutputStream

and dispatches the buffered data items to the client

Author:

Hendrik Blom,chris, Tobias Beckers

Field Summary

Fields

Modifier and Type	Field and Description
protected LinkedBlockingQueue<Data>	buffer the buffer holding the next items that should be transferred to the client
protected int	bufferSize
protected ConnectionHandler	connectionHandler
protected boolean	disconnectSlowClients
private org.slf4j.Logger	log
protected ObjectOutputStream	out
protected boolean	running flag to indicate that the corresponding client is connected and can receive data
protected Socket	socket the socket to communicate with the client.

Constructor Summary

Constructors

Constructor and Description
Connection(ConnectionHandler connectionHandler)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Shuts down this DataTap.ClientHandler.
void	init(Socket socket, int bufferSize, boolean gzip, boolean disconnectSlowClients)
boolean	isRunning()
void	run() This method creates a client connection shutdown listener (if wanted) in an own thread writes the buffered data items to the output stream in an endless loop
String	toString()
boolean	write(Data item) Adds the specified data item to this client's buffer.

Methods inherited from class java.lang.Object

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

Field Detail

log

private final org.slf4j.Logger log

socket

protected Socket socket

the socket to communicate with the client. Output: From server to client; Input: From client to server

buffer

protected LinkedBlockingQueue<Data> buffer

the buffer holding the next items that should be transferred to the client

running

protected boolean running

flag to indicate that the corresponding client is connected and can receive data

bufferSize

protected int bufferSize

disconnectSlowClients

protected boolean disconnectSlowClients

connectionHandler

protected ConnectionHandler connectionHandler

out

protected ObjectOutputStream out

Constructor Detail

Connection

public Connection(ConnectionHandler connectionHandler)

Method Detail

init

public void init(Socket socket,
        int bufferSize,
        boolean gzip,
        boolean disconnectSlowClients)
          throws IOException

Throws:

IOException

run

public void run()

This method

• creates a client connection shutdown listener (if wanted) in an own thread
• writes the buffered data items to the output stream in an endless loop

Specified by:

run in interface Runnable

close

public void close()

Shuts down this DataTap.ClientHandler.
Releases all resources.
Once a DataTap.ClientHandler has been closed, it is not available for further processing (i.e. can't be reactivated). A new instance needs to be created.

write

public boolean write(Data item)
              throws InterruptedException

Adds the specified data item to this client's buffer.
If buffer is not full: Method returns directly and the item is shipped out later by this thread.
If buffer is full: Blocking wait for space in the buffer

Parameters:

chunk -

Throws:

InterruptedException

isRunning

public boolean isRunning()

toString

public String toString()

Overrides:

toString in class Object