Hi

I am working on a streaming project where I need to consume different 
source types on demand. To comply with the akka model I decided to 
implement dedicated mailbox types which
establish a connection with the desired source and read data from it, eg. 
kafka topics or websockets. As I do not know which source to consume before 
starting the application I cannot
provide the full configuration parameters but need to set them during 
runtime. 

What I would like to know is, if there is a chance to get configuration 
data into a mailbox when it is instantiated. The data must not be read from 
a configuration file but may be provided
by the caller on demand. 

The only solution I actually thought of was to ramp up the actor + mailbox 
without any configuration and send a message holding the configuration 
right after its instantiation. The mailbox
sees the message, extracts the information and configures the source 
listener as required. The message might be removed from the mailbox or be 
provided to the actor - depends on 
spec. 

In some way I dislike this solution as it makes me react to messages on two 
different layers: the mailbox and the actor. 

I tried to establish the source connection from within an actor, scheduled 
READ MESSAGES to itself and on receiving this message type the actor takes 
a single message from
the source. The drawback of this solution is a reduced throughput as each 
READ MESSAGE must be awaited and then the source must be consumed. It 
allows to throttle the reading
speed but it does not allow to speed things up arbitrarily as the READ 
MESSAGE must be issued .. which takes time :-(

Aside from that I must provide another managing layer which handles the 
reading actors. Therefore I'd love to use the mailbox approach but find it 
quite annoying to send in control messages.

With kind regards,
  Christian

-- 
>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>>      Search the archives: https://groups.google.com/group/akka-user
--- 
You received this message because you are subscribed to the Google Groups "Akka 
User List" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to akka-user+unsubscr...@googlegroups.com.
To post to this group, send email to akka-user@googlegroups.com.
Visit this group at http://groups.google.com/group/akka-user.
For more options, visit https://groups.google.com/d/optout.

Reply via email to