[rabbitmq-discuss] udp exchange and headers type

[Massimo Paladin]

Hello,

we are playing with the udp exchange and found some problem.

On the receiving side, both with pika and ruby amqp we were
having problems, for instance, with ruby:

/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/table.rb:88:in
`decode': NotImplementedError (NotImplementedError)
from
/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/client.rb:1482:in
`decode_properties'
 from
/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/client.rb:1465:in
`each'
from
/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/client.rb:1465:in
`decode_properties'
 from
/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/frame.rb:142:in
`decode_payload'
from
/Library/Ruby/Gems/1.8/gems/amq-protocol-0.9.0/lib/amq/protocol/frame.rb:115:in
`body_size'
 from
/Library/Ruby/Gems/1.8/gems/amq-client-0.9.2/lib/amq/client/async/adapter.rb:675:in
`content_complete?'
from
/Library/Ruby/Gems/1.8/gems/amq-client-0.9.2/lib/amq/client/async/adapter.rb:667:in
`frameset_complete?'
 from
/Library/Ruby/Gems/1.8/gems/amq-client-0.9.2/lib/amq/client/async/adapter.rb:518:in
`receive_frame'
from
/Library/Ruby/Gems/1.8/gems/amq-client-0.9.2/lib/amq/client/async/adapters/event_machine.rb:327:in
`receive_data'
 from
/Library/Ruby/Gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in
`run_machine'
from
/Library/Ruby/Gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in
`run'

with pika it gives a similar error on pika/data.py:128

The error obviously comes from the headers set by the udp plugin:
Headers = [{<<"source_ip">>, longstr, IpStr},
              {<<"source_port">>, short, Port}],

Changing it to signedint fixed the problem:
Headers = [{<<"source_ip">>, longstr, IpStr},
              {<<"source_port">>, signedint, Port}],

In the ruby client the type short int is explicitly rejected (
amq/protocol/table.rb:88)

Is this a problem in pika and amqp ruby clients or in the java one?

Cheers,
---
Massimo Paladin

email: massimo.paladin at gmail.com
website: http://www.mpaladin.com
flickr's page: http://flickr.com/photos/massimop
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