python proton API on_accepted() - 如何从事件参数中获取被接受的味精的详细信息？

Question

There are a dozen "hello world" type examples I see where on_accepted() just counts the number of accepted msgs - where it is something to show that "a message" was accepted. However, I need to know WHICH message was accepted.

def on_accepted(self, event):
    m_id = event.message.id
    self.logger.info( 'Accepted msg {0}'.format( m_id ))

This doesn't work because there is no valid message element in event, so I end up with a NoneType doesn't have an id type error.

I looked at the members of the event parameter and I don't see anything which I thought would make sense..

Answer 1

I wasn't able to find any references to how to read the message details, but I was able to find a work around which gave me the same info.

If I specify a tag on the send() call, like this:

event.sender.send(msg, tag = msg_id )

I can then read it in the receiver code like this:

def on_accepted(self, event): msg_id = event.delivery.tag

Problem "solved"