RE: [equinox-dev] EventAdmin and topic legality

["Michael Furtak" <mfurtak@xxxxxxx>]

My impression that the implementation was stricter than the spec was
just based upon my interpretation of what should be a valid topic under
the spec.

For control, the following topic does work for me:
"com/cra/foobar"

Example topics that I have tried, but do not work include: 
"com/cra/foo-bar"
"com/cra/2foobar"
"com/cra/_foobar"

They all produce a stack trace identical to the one in my original
message.  Should those topics be valid to your knowledge?

Thanks,
-Mike


-----Original Message-----
From: equinox-dev-bounces@xxxxxxxxxxx
[mailto:equinox-dev-bounces@xxxxxxxxxxx] On Behalf Of BJ Hargrave
Sent: Tuesday, January 30, 2007 9:42 AM
To: Equinox development mailing list
Subject: Re: [equinox-dev] EventAdmin and topic legality

Line 187 in Event.java indicates that the token is the empty string.
This 
implies that you have 2 (or more) adjacent slashes in the topic name:
e.g. 
foo//bar.

What leads you to believe the Equinox EventAdmin impl is more strict in 
the token grammar? The test for valid token is in 
or.osgi.service.event.Event which is from OSGi.

BJ Hargrave
Senior Technical Staff Member, IBM
OSGi Fellow and CTO of the OSGi Alliance
hargrave@xxxxxxxxxx

office: +1 386 848 3788
mobile: +1 386 848 3788




"Michael Furtak" <mfurtak@xxxxxxx> 
Sent by: equinox-dev-bounces@xxxxxxxxxxx
01/30/2007 09:26 AM
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Subject
[equinox-dev] EventAdmin and topic legality






Good morning.
 
Forgive my posting if this is not the right forum to be asking these 
questions.  If so, redirection would be appreciated.
 
I'm having a spot of trouble with the Equinox EventAdmin.  It seems like

the Equinox EventAdmin will not accept a topic that contains certain 
tokens, producing:
 
Exception in thread "Thread-0" java.lang.IllegalArgumentException:
invalid 
topic
        at org.osgi.service.event.Event.validateToken(Event.java:187)
        at
org.osgi.service.event.Event.validateTopicName(Event.java:161)
        at org.osgi.service.event.Event.<init>(Event.java:46)
        ...
 
The core OSGi spec defines a token as one or more alphanumerics, 
underscores, or dashes (1.4.2 - General Syntax Definitions).  Based on
my 
investigation, the Equinox implementation seems to have a more strict 
interpretation of what is a valid token.  Dashes seem to be completely 
disallowed.  Numbers and underscores can be present, but cannot be the 
first character in a token.  Overall this seems similar to Java variable

naming rules, but I was curious whether my interpretation of the spec is

incorrect or if there was a reason for the discrepancy.
 
Many thanks,
-Mike Furtak_______________________________________________
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