On Tue, Nov 25, 2014 at 12:57 PM, Syd Gillani <[email protected]>
wrote:
> Thanks Patrik, but I am more interested in finding the path name of the
> Future to return the message. For Instance,
>
> // First Starting the actor system
>
>
> ActorSystem system = ActorSystem.create("System1");
> ActorRef master= system.actorOf(Master.createMaster(), "Master");
>
> master.tell(initiateProcess, ActorRef.noSender());
>
>
> // Following is the future call to an actor
>
> Future<Object> future = Patterns.ask(master , new FinalResult(), 100000);
>
>
> And the Master Actor messages are as following.
>
>
> if(message instanceof initiateProcess){
>
>
>
> worker.tell(( initiateProcess) message, getSelf());
> }
>
> else if(message instanceof ResultList){
>
> //get the reply from the worker of the resulted computation
>
> //send the result back to Future
>
> } else if(message instanceof FinalResult){
>
> /// To recieve and send message to the Future
>
> }
>
>
> So what I would like to achieve is to send the result back to the future
> if the master receives the result message from its worker.
>
I'm unable to understand what you want to do.
Normally you reply to an ask by sending a message back to the getSender().
That will complete the Future that was returned by ask with that reply
message.
If you can't reply to the sender immediately you can store the ActorRef of
getSender() in a variable and reply to it later.
Note that you can only complete a Future once, i.e. with the first reply
message.
Regards,
Patrik
>
> Cheers
> Syd
>
>
>
>
>
>
>
> On Tuesday, 25 November 2014 09:21:35 UTC+1, Patrik Nordwall wrote:
>>
>> Yes, you can use ask with ActorSelection.
>> /Patrik
>>
>> On Mon, Nov 24, 2014 at 2:47 PM, Syd Gillani <[email protected]>
>> wrote:
>>
>>> Yeah by Future request I mean ask pattern.
>>>
>>> Well the configuration of my actors is as following.
>>>
>>> - Create Actor System
>>>
>>> - Create Master and Send an Object for processing.
>>>
>>> - Create Future and ask the Result form the Master
>>>
>>>
>>>
>>> Master will create various workers and then aggregate the result from
>>> them.
>>>
>>> This aggregated result will be send to the Future.
>>>
>>> So I would like to send the response back to Future when the aggregated
>>> result is computed in the Master
>>>
>>>
>>> Syd
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Monday, 24 November 2014 11:52:28 UTC+1, Martynas Mickevičius wrote:
>>>>
>>>> By "future request" you mean ask (?) pattern
>>>> <http://doc.akka.io/docs/akka/2.3.7/scala/actors.html#Ask__Send-And-Receive-Future>,
>>>> right?
>>>>
>>>> If so, why do you want to complete the future by other means than
>>>> replying to the original message?
>>>>
>>>> On Mon, Nov 24, 2014 at 12:37 PM, Syd Gillani <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I was going through the Akka actorselection documents and as it
>>>>> describes that you can select and actor and send a reply to it. For
>>>>> instance
>>>>>
>>>>> getContext().system().actorSelection("/actor/a").tell(result,
>>>>> getContext().self());
>>>>>
>>>>> However, I was wondering if its possible in case of future as well.
>>>>> Does the system provide any name or path id's to the future request as
>>>>> well. Because according to my experiments, the future are assigned as a
>>>>> temporary actors with paths as ''/temp/$a''. But if I use such path from
>>>>> an actor to reply back a future It just simple doesn't work.
>>>>>
>>>>> My project have a master actor and various worker actors and I used
>>>>> future to get the aggregated result form the master.
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Syd
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>>>>> urrent/additional/faq.html
>>>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou
>>>>> p/akka-user
>>>>> ---
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>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Martynas Mickevičius
>>>> Typesafe <http://typesafe.com/> – Reactive
>>>> <http://www.reactivemanifesto.org/> Apps on the JVM
>>>>
>>> --
>>> >>>>>>>>>> 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
>>> ---
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>>>
>>
>>
>>
>> --
>>
>> Patrik Nordwall
>> Typesafe <http://typesafe.com/> - Reactive apps on the JVM
>> Twitter: @patriknw
>>
>> --
> >>>>>>>>>> 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
> ---
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>
--
Patrik Nordwall
Typesafe <http://typesafe.com/> - Reactive apps on the JVM
Twitter: @patriknw
--
>>>>>>>>>> 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
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