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https://issues.apache.org/jira/browse/DISPATCH-89?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16335920#comment-16335920
 ] 

ASF GitHub Bot commented on DISPATCH-89:
----------------------------------------

Github user kgiusti commented on a diff in the pull request:

    https://github.com/apache/qpid-dispatch/pull/244#discussion_r163277543
  
    --- Diff: python/qpid_dispatch/management/qdrouter.json ---
    @@ -1126,6 +1126,106 @@
                 }
             },
     
    +        "router.config.exchange": {
    +            "description":"[EXPERIMENTAL] Defines a topic exchange.",
    +            "extends": "configurationEntity",
    +            "operations": ["CREATE", "DELETE"],
    +            "attributes": {
    +                "address": {
    +                    "description": "The address of the exchange.",
    +                    "type": "string",
    +                    "create": true,
    +                    "required": true
    +                },
    +                "phase": {
    +                    "type": "integer",
    +                    "description": "The address phase for the exchange.  
Defaults to '0'.",
    +                    "create": true,
    +                    "required": false
    +                },
    +                "alternate": {
    +                    "description": "The address to forward the message to 
if no bindings are matched.",
    +                    "type": "string",
    +                    "create": true,
    +                    "required": false
    +                },
    +                "alternatePhase": {
    +                    "type": "integer",
    +                    "description": "The address phase for the alternate 
address.  Defaults to '0'.",
    +                    "create": true,
    +                    "required": false
    +                },
    +                "matchMethod": {
    +                    "description": "Key matching algorithm used. '0-10' 
uses the legacy AMQP topic exchange wildcard match method as described in the 
0-10 draft. 'mqtt' uses the MQTT topic filter wildcard match method.",
    +                    "type": ["0-10", "mqtt"],
    +                    "default": "0-10",
    --- End diff --
    
    also includes 0-9,8 etc?   Need more general name.


> Model the legacy topic exchange behavior of qpidd
> -------------------------------------------------
>
>                 Key: DISPATCH-89
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-89
>             Project: Qpid Dispatch
>          Issue Type: New Feature
>          Components: Routing Engine
>    Affects Versions: 0.2
>            Reporter: Ken Giusti
>            Assignee: Ken Giusti
>            Priority: Major
>
> With Qpidd, a user can define a binding from an Exchange to a target queue.  
> The binding uses a key that is compared to a message's subject field.  If the 
> key matches, the message is routed to the target queue for that binding.
> It should be possible to emulate this behavior using the dispatch router.
> Example:
> User defines a mappings from a target address (the 'exchange') to a different 
> target address(es) (the 'queue').  These mappings (the 'bindings') are driven 
> by a pattern match against the inbound message's subject field.
> Messages arriving at the router from any link whose target address has 
> bindings defined are not immediately routed.  Prior to routing, the message's 
> subject field is extracted and compared against each binding defined for the 
> target.  A list of new target addresses is created containing the target 
> address from each binding that satisfied the pattern match.  The message is 
> then routed to each new target address.
> The pattern syntax should be the same 'dotted string' notation from qpidd, 
> including '*' and "#' wildcarding.



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