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https://issues.apache.org/jira/browse/PROTON-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14301493#comment-14301493
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Jeff Ortel commented on PROTON-812:
-----------------------------------

This looks great but not sure how it will disambiguate causes for 
create_receiver() to fail.  Between:
1. node does not exist on the broker.
2. intermediate dispatch router not connected/running so the link chain could 
not be created.

Can you explain?

> LinkException needs an attribute that indicates the reason for the exception.
> -----------------------------------------------------------------------------
>
>                 Key: PROTON-812
>                 URL: https://issues.apache.org/jira/browse/PROTON-812
>             Project: Qpid Proton
>          Issue Type: Improvement
>    Affects Versions: 0.8
>            Reporter: Jeff Ortel
>            Assignee: Gordon Sim
>             Fix For: 0.9
>
>
> LinkException needs an attribute that indicates the reason for the exception 
> so that the exception can be appropriately delt with.  For example: A link 
> exception caused when a node does not exist would be delt with differently 
> than a link exception caused by an issue in the link chain involving dispatch 
> router.  Having constants for the error codes would be desireable.



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