Package jade.core.messaging

Class IncomingEncodingFilter

java.lang.Object

jade.core.Filter

jade.core.messaging.IncomingEncodingFilter

public class IncomingEncodingFilter
extends Filter

Class that filters incoming commands related to encoding of ACL messages.

Version:

$Date$ $Revision$

Author:

Jerome Picault - Motorola Labs, Nicolas Lhuillier - Motorola Labs

Field Summary

Fields inherited from class jade.core.Filter

FIRST, INCOMING, LAST, OUTGOING

Constructor Summary

Constructors

Constructor	Description
IncomingEncodingFilter(Map m, MessagingService svc)

Method Summary

Modifier and Type	Method	Description
boolean	accept(VerticalCommand cmd)	Receive a command object for processing.
ACLMessage	decodeMessage(Envelope env, byte[] payload)	Decodes an endoded ACL message according to the acl-representation described in the envelope.
void	postProcess(VerticalCommand cmd)	Post-process a command object after it has been processed by the successive filters in the filter chain.

Methods inherited from class jade.core.Filter

getPreferredPosition, isBlocking, isSkipping, setBlocking, setPreferredPosition, setSkipping

Methods inherited from class java.lang.Object

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

Constructor Detail

IncomingEncodingFilter

public IncomingEncodingFilter(Map m,
                              MessagingService svc)

Method Detail

accept

public boolean accept(VerticalCommand cmd)

Receive a command object for processing.

Overrides:

accept in class Filter

Parameters:

cmd - A VerticalCommand describing what operation has been requested from previous layers (that can be the actual prime source of the command or previous filters in the chain).

Returns:

A boolean value, telling whether the filtered command has been accepted or not. A filter can veto a command by returning false from this method. A vetoed command is not propagated in the filter chain.

postProcess

public void postProcess(VerticalCommand cmd)

Description copied from class: Filter

Post-process a command object after it has been processed by the successive filters in the filter chain.

Overrides:

postProcess in class Filter

Parameters:

cmd - A VerticalCommand describing what operation has been requested from previous layers (that can be the actual prime source of the command or previous filters in the chain).

decodeMessage

public ACLMessage decodeMessage(Envelope env,
                                byte[] payload)
                         throws MessagingService.UnknownACLEncodingException,
                                ACLCodec.CodecException

Decodes an endoded ACL message according to the acl-representation described in the envelope.

Parameters:

env - the Envelope of the message

payload - the encoded message

Returns:

the decoded ACLMessage

Throws:

MessagingService.UnknownACLEncodingException

ACLCodec.CodecException