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From "Hiram Chirino (Issue Comment Edited) (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (APLO-196) Allow to drop a message in a protocol filter
Date Fri, 20 Apr 2012 16:56:40 GMT

    [ https://issues.apache.org/jira/browse/APLO-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258370#comment-13258370
] 

Hiram Chirino edited comment on APLO-196 at 4/20/12 4:55 PM:
-------------------------------------------------------------

Hi Pablo,

How about we define a new more powerful Filtering interface.  How does this look to you?

/**
 * A Protocol filter can filter frames being sent/received to and from a client.  It can modify
 * the frame or even drop it.
 */
abstract class ProtocolFilter2 {

  /**
   * Filters a command frame received from a client.
   * returns None if the filter wants to drop the frame.
   */
  def filter_inbound[T](frame: T):Option[T]

  /**
   * Filters a command frame being sent client.
   * returns None if the filter wants to drop the frame.
   */
  def filter_outbound[T](frame: T):Option[T]
}


                
      was (Author: chirino):
    Hi Pablo,

How about we define a new more powerful Filtering interface.  How does this look to you?

/**
 * A Protocol filter can command frame being sent/receive to and from client.  It can modify
 * the frame or even drop it.
 */
abstract class ProtocolFilter2 {

  /**
   * Filters a command frame received from a client.
   * returns None if the filter wants to drop the frame.
   */
  def filter_inbound[T](frame: T):Option[T]

  /**
   * Filters a command frame being sent client.
   * returns None if the filter wants to drop the frame.
   */
  def filter_outbound[T](frame: T):Option[T]
}


                  
> Allow to drop a message in a protocol filter
> --------------------------------------------
>
>                 Key: APLO-196
>                 URL: https://issues.apache.org/jira/browse/APLO-196
>             Project: ActiveMQ Apollo
>          Issue Type: New Feature
>            Reporter: Pablo Guerrero
>
> This could be implemented by itself, or, when the issue APLO-195 is solved, just by removing
the return value of the filtering function.
> Then, you could just resend the current message, if needed, or do nothing in case you
want to drop it. Depending of the implementation of APLO-195, a helper function for the resend
situation could be handy.

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