org.apache.mina.protocol
Interface ProtocolFilter

All Known Implementing Classes:

ProtocolFilterAdapter, ProtocolLoggingFilter, ProtocolThreadPoolFilter

public interface ProtocolFilter

A filter which intercepts ProtocolHandler events like Servlet filters. Filters can be used for these purposes:

• Event logging,
• Performance measurement,
• Authorization,
• Overload control,
• Message transformation (e.g. encryption and decryption, ...),
• and many more.

Please NEVER implement your filters to wrap ProtocolSessions. Users can cache the reference to the session, which might malfunction if any filters are added or removed later.

Version:

$Rev: 332218 $, $Date: 2005-11-10 12:52:42 +0900 $

Author:

The Apache Directory Project (dev@directory.apache.org)

See Also:

ProtocolFilterAdapter

Nested Class Summary

static interface

ProtocolFilter.NextFilter

Method Summary

void	exceptionCaught(ProtocolFilter.NextFilter nextFilter, ProtocolSession session, Throwable cause) Filters ProtocolHandler.exceptionCaught(ProtocolSession,Throwable) event.
void	filterWrite(ProtocolFilter.NextFilter nextFilter, ProtocolSession session, Object message) Filters ProtocolSession.write(Object) method invocation.
void	messageReceived(ProtocolFilter.NextFilter nextFilter, ProtocolSession session, Object message) Filters ProtocolHandler.messageReceived(ProtocolSession,Object) event.
void	messageSent(ProtocolFilter.NextFilter nextFilter, ProtocolSession session, Object message) Filters ProtocolHandler.messageSent(ProtocolSession,Object) event.
void	sessionClosed(ProtocolFilter.NextFilter nextFilter, ProtocolSession session) Filters ProtocolHandler.sessionClosed(ProtocolSession) event.
void	sessionIdle(ProtocolFilter.NextFilter nextFilter, ProtocolSession session, IdleStatus status) Filters ProtocolHandler.sessionIdle(ProtocolSession,IdleStatus) event.
void	sessionOpened(ProtocolFilter.NextFilter nextFilter, ProtocolSession session) Filters ProtocolHandler.sessionOpened(ProtocolSession) event.

Method Detail

sessionOpened

void sessionOpened(ProtocolFilter.NextFilter nextFilter,
                   ProtocolSession session)
                   throws Exception

Filters ProtocolHandler.sessionOpened(ProtocolSession) event.

Throws:

Exception

sessionClosed

void sessionClosed(ProtocolFilter.NextFilter nextFilter,
                   ProtocolSession session)
                   throws Exception

Filters ProtocolHandler.sessionClosed(ProtocolSession) event.

Throws:

Exception

sessionIdle

void sessionIdle(ProtocolFilter.NextFilter nextFilter,
                 ProtocolSession session,
                 IdleStatus status)
                 throws Exception

Filters ProtocolHandler.sessionIdle(ProtocolSession,IdleStatus) event.

Throws:

Exception

exceptionCaught

void exceptionCaught(ProtocolFilter.NextFilter nextFilter,
                     ProtocolSession session,
                     Throwable cause)
                     throws Exception

Filters ProtocolHandler.exceptionCaught(ProtocolSession,Throwable) event.

Throws:

Exception

messageReceived

void messageReceived(ProtocolFilter.NextFilter nextFilter,
                     ProtocolSession session,
                     Object message)
                     throws Exception

Filters ProtocolHandler.messageReceived(ProtocolSession,Object) event.

Throws:

Exception

messageSent

void messageSent(ProtocolFilter.NextFilter nextFilter,
                 ProtocolSession session,
                 Object message)
                 throws Exception

Filters ProtocolHandler.messageSent(ProtocolSession,Object) event.

Throws:

Exception

filterWrite

void filterWrite(ProtocolFilter.NextFilter nextFilter,
                 ProtocolSession session,
                 Object message)
                 throws Exception

Filters ProtocolSession.write(Object) method invocation.

Throws:

Exception