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Posted to muse-dev@ws.apache.org by "Mohammad Fakhar (JIRA)" <ji...@apache.org> on 2006/10/02 20:48:19 UTC

[jira] Created: (MUSE-122) Notification producer doesn't support multiple filters

Notification producer doesn't support multiple filters 
-------------------------------------------------------

                 Key: MUSE-122
                 URL: http://issues.apache.org/jira/browse/MUSE-122
             Project: Muse
          Issue Type: Improvement
          Components: WSN NotificationProducer
    Affects Versions: 2.1.0
         Environment: any
            Reporter: Mohammad Fakhar
         Assigned To: Dan Jemiolo


WS-N 1.3 spec says that multiple filter children are allowed on the subscribe request, all of which combine to evaluate to a boolean:

"The Filter component is the means by which a Subscriber expresses the subset of 
Notifications that the NotificationConsumer should receive. This subset is expressed by the 
child elements of the Filter. The child elements are a sequence of zero or more expressions 
evaluating to a Boolean that constrain the set of possible Notifications."

However, currently muse only supports one filter. To confirm with spec, it should support multiple filters.

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[jira] Commented: (MUSE-122) Notification producer doesn't support multiple filters

Posted by "Dan Jemiolo (JIRA)" <ji...@apache.org>.
    [ http://issues.apache.org/jira/browse/MUSE-122?page=comments#action_12439275 ] 
            
Dan Jemiolo commented on MUSE-122:
----------------------------------

I think this may break 2.0 code - we'll need to make subscribe( ) and SubscriptionManager use a Filter[] *or* add a FilterExpression piece to the Filter API. I think we can make the *interfaces* backwards compatible with 2.0, but the FilterFactory and Filter implementations will change with the introduction of expressions. I think this has to wait for post-2.1.

As a workaround - it is often possible to express mutliple filters in one filter. The only impossible scenario is combining a properties filter with a topic or message filter; the other two can be combined into a single message filter using XPath.

> Notification producer doesn't support multiple filters
> ------------------------------------------------------
>
>                 Key: MUSE-122
>                 URL: http://issues.apache.org/jira/browse/MUSE-122
>             Project: Muse
>          Issue Type: Improvement
>          Components: WSN NotificationProducer
>    Affects Versions: 2.1.0
>         Environment: any
>            Reporter: Mohammad Fakhar
>         Assigned To: Dan Jemiolo
>
> WS-N 1.3 spec says that multiple filter children are allowed on the subscribe request, all of which combine to evaluate to a boolean:
> "The Filter component is the means by which a Subscriber expresses the subset of 
> Notifications that the NotificationConsumer should receive. This subset is expressed by the 
> child elements of the Filter. The child elements are a sequence of zero or more expressions 
> evaluating to a Boolean that constrain the set of possible Notifications."
> However, currently muse only supports one filter. To confirm with spec, it should support multiple filters.

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[jira] Commented: (MUSE-122) Notification producer doesn't support multiple filters

Posted by "Dan Jemiolo (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/MUSE-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12462030 ] 

Dan Jemiolo commented on MUSE-122:
----------------------------------

Okay, I think I can solve this w/o breaking 2.0 APIs. Kind of a hack, but oh well. I will make a FilterSet class in the wsn-impl module that implements Filter. It will wrap a List of Filter objects, and the accepts() method will simply iterate over the List and return true if all of its filters return true. I will update the FilterFactory class to return a FilterSet object (but the method signature will still return Filter).

Next post will either close w/ commit or explain obstacles to this solution.

> Notification producer doesn't support multiple filters
> ------------------------------------------------------
>
>                 Key: MUSE-122
>                 URL: https://issues.apache.org/jira/browse/MUSE-122
>             Project: Muse
>          Issue Type: Improvement
>          Components: WSN NotificationProducer
>    Affects Versions: 2.1.0
>         Environment: any
>            Reporter: Mohammad Fakhar
>         Assigned To: Dan Jemiolo
>             Fix For: 2.2.0
>
>
> WS-N 1.3 spec says that multiple filter children are allowed on the subscribe request, all of which combine to evaluate to a boolean:
> "The Filter component is the means by which a Subscriber expresses the subset of 
> Notifications that the NotificationConsumer should receive. This subset is expressed by the 
> child elements of the Filter. The child elements are a sequence of zero or more expressions 
> evaluating to a Boolean that constrain the set of possible Notifications."
> However, currently muse only supports one filter. To confirm with spec, it should support multiple filters.

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[jira] Closed: (MUSE-122) Notification producer doesn't support multiple filters

Posted by "Dan Jemiolo (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MUSE-122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Jemiolo closed MUSE-122.
----------------------------

    Resolution: Fixed

Fixed - http://svn.apache.org/viewvc?view=rev&revision=492265

> Notification producer doesn't support multiple filters
> ------------------------------------------------------
>
>                 Key: MUSE-122
>                 URL: https://issues.apache.org/jira/browse/MUSE-122
>             Project: Muse
>          Issue Type: Improvement
>          Components: WSN NotificationProducer
>    Affects Versions: 2.1.0
>         Environment: any
>            Reporter: Mohammad Fakhar
>         Assigned To: Dan Jemiolo
>             Fix For: 2.2.0
>
>
> WS-N 1.3 spec says that multiple filter children are allowed on the subscribe request, all of which combine to evaluate to a boolean:
> "The Filter component is the means by which a Subscriber expresses the subset of 
> Notifications that the NotificationConsumer should receive. This subset is expressed by the 
> child elements of the Filter. The child elements are a sequence of zero or more expressions 
> evaluating to a Boolean that constrain the set of possible Notifications."
> However, currently muse only supports one filter. To confirm with spec, it should support multiple filters.

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[jira] Updated: (MUSE-122) Notification producer doesn't support multiple filters

Posted by "Dan Jemiolo (JIRA)" <ji...@apache.org>.
     [ http://issues.apache.org/jira/browse/MUSE-122?page=all ]

Dan Jemiolo updated MUSE-122:
-----------------------------

    Fix Version/s: 2.2.0

Not sure what the resolution will be here, but we will have one for the 2.2 release.

> Notification producer doesn't support multiple filters
> ------------------------------------------------------
>
>                 Key: MUSE-122
>                 URL: http://issues.apache.org/jira/browse/MUSE-122
>             Project: Muse
>          Issue Type: Improvement
>          Components: WSN NotificationProducer
>    Affects Versions: 2.1.0
>         Environment: any
>            Reporter: Mohammad Fakhar
>         Assigned To: Dan Jemiolo
>             Fix For: 2.2.0
>
>
> WS-N 1.3 spec says that multiple filter children are allowed on the subscribe request, all of which combine to evaluate to a boolean:
> "The Filter component is the means by which a Subscriber expresses the subset of 
> Notifications that the NotificationConsumer should receive. This subset is expressed by the 
> child elements of the Filter. The child elements are a sequence of zero or more expressions 
> evaluating to a Boolean that constrain the set of possible Notifications."
> However, currently muse only supports one filter. To confirm with spec, it should support multiple filters.

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