org.abstracthorizon.danube.service.server
Class ServerConnectionHandler

java.lang.Object
  org.abstracthorizon.danube.service.server.ServerConnectionHandler

All Implemented Interfaces:

ConnectionHandler

Direct Known Subclasses:

HTTPServerConnectionHandler

public class ServerConnectionHandler
extends Object
implements ConnectionHandler

This class is entry point for typical server that handles request sequentially.

Author:

Daniel Sendula

Field Summary

protected ConnectionHandler	connectionHandler Connection Handler
protected org.slf4j.Logger	logger Logger

Constructor Summary

ServerConnectionHandler()
Constructor

Method Summary

protected void	closeConnection(Connection connection) Closes connection.
protected Connection	decorateConnection(Connection connection) This method can "decorate" connection wrapping it with own.
protected void	finishProcessingConnection(Connection connection, boolean closedConnection) Finishes connection for this server connection handler.
ConnectionHandler	getConnectionHandler() Returns connection handler
void	handleConnection(Connection connection) This template method allows connection to be wrapped and then processes sequential requests/commands while socket is open or an exception occurs.
protected boolean	postProcessing(Connection connection) Post processing that should determine shell we persist connection (invoke handler again) or leave connection handler.
protected void	processConnection(Connection connection) Template method for processing of connection.
void	setConnectionHandler(ConnectionHandler connectionHandler) Sets connection handler

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final org.slf4j.Logger logger

Logger

connectionHandler

protected ConnectionHandler connectionHandler

Connection Handler

Constructor Detail

ServerConnectionHandler

public ServerConnectionHandler()

Constructor

Method Detail

setConnectionHandler

public void setConnectionHandler(ConnectionHandler connectionHandler)

Sets connection handler

Parameters:

connectionHandler -

getConnectionHandler

public ConnectionHandler getConnectionHandler()

Returns connection handler

Returns:

connection handler

handleConnection

public void handleConnection(Connection connection)
                      throws ConnectionException

This template method allows connection to be wrapped and then processes sequential requests/commands while socket is open or an exception occurs.

Specified by:

handleConnection in interface ConnectionHandler

Parameters:

connection - socket connection

Throws:

ConnectionException

processConnection

protected void processConnection(Connection connection)

Template method for processing of connection. Override it to perform what is needed. This method invokes given connection handler

Parameters:

connection - decorated

decorateConnection

protected Connection decorateConnection(Connection connection)

This method can "decorate" connection wrapping it with own. This implementation does nothing

Parameters:

connection - original conneciton

Returns:

decorated connection

postProcessing

protected boolean postProcessing(Connection connection)

Post processing that should determine shell we persist connection (invoke handler again) or leave connection handler.

Parameters:

connection - decorated connection

Returns:

true if we should persist connection

closeConnection

protected void closeConnection(Connection connection)

Closes connection. This method is called if there was an error and connection should not remain open. Can be overridden if something else needs to be performed before or after closing connection or to prevent closing connection.

Parameters:

connection - decorated connection

finishProcessingConnection

protected void finishProcessingConnection(Connection connection,
                                          boolean closedConnection)

Finishes connection for this server connection handler. This method can do some last minute clean up on decorated connection.

Parameters:

connection - decorated connection

closedConnection - has closeConnection(Connection) method called before