Right, that's true, I might've forgot to register for the event this time
around. Thanks!
Arve
On Fri, Oct 15, 2010 at 4:32 PM, Sharon Lucas <luc...@us.ibm.com> wrote:
> Messages stay on a handle's queue until they are removed (e.g. by a QUEUE
> GET request or by a QUEUE DELETE request).
>
> A STAF handle has to be registered to be notified when an event occurs
> before the event is generated for the event message to be sent to the
> handle's queue.
>
> --------------------------------------------------------------
> Sharon Lucas
> IBM Austin, luc...@us.ibm.com
> (512) 286-7313 or Tieline 363-7313
>
>
>
>
> From: Arve Knudsen <arve.knud...@gmail.com>
> To: Sharon Lucas/Austin/i...@ibmus
> Cc: staf-users@lists.sourceforge.net
> Date: 10/15/2010 06:13 AM
> Subject: Re: [staf-users] How do I receive an event from another
> machine?
>
>
>
> Sharon, do received events stay on the queue for only a short time? From
> some testing of mine, it appears that I have to be waiting on the queue as
> events are received. If I try to get events after they have been generated,
> there's nothing there.
>
> Arve
>
> On Fri, Oct 15, 2010 at 10:10 AM, Arve Knudsen <arve.knud...@gmail.com>
> wrote:
> Thanks for the example Sharon, I think I am getting somewhere now
> although I don't know what's different from my previous attempts yet. I'm
> going to try to reimplement my full scenario step by step, and we'll see
> how it goes.
>
> I notice a problem with PySTAF though, when I issue the request "QUEUE
> GET WAIT TYPE STAF/Service/Event" and it waits, I cannot interrupt with
> Ctrl+C. I have to kill Python. This is on Red Hat Linux btw.
>
> Arve
>
>
> On Thu, Oct 14, 2010 at 9:00 PM, Sharon Lucas <luc...@us.ibm.com> wrote:
> Arve,
>
> Here is the same example as shown in the Event Service User's Guide
> except
> that all STAF commands are being submitted via the command line using
> the
> STAF executable instead of being submitted via a Java program. The
> following three machines will be used in this example:
> - lucas.austin.ibm.com: Is the Event service machine (e.g. the machine
> where the Event service is registered in its STAF.cfg file)
> - staf6e.austin.ibm.com: Is a machine that registers to be notified
> when
> an event with type "build" is generated by the Event service machine
> - staf1e.austin.ibm.com: Is a machine that submits a request to the
> Event
> service machine to generate an event with type "build"
>
> 1) Machine staf6e's MyTestHandle registers with the Event service
> machine
> (lucas) to be notified for events with type "build":
>
> So, first on staf6e, since this example is from the command line, I'll
> create a static STAF handle to use for this test and set environment
> variable STAF_STATIC_HANDLE to this handle so that the STAF requests
> that I
> submit from this terminal will be submitted using this STAF handle
> (instead
> of the STAF executable creating a new STAF handle each time it is
> called).
>
> staf6e:~ root# STAF local HANDLE CREATE HANDLE Name MyTestHandle
> Response
> --------
> 736
>
> staf6e:~ root# export STAF_STATIC_HANDLE=736
>
> Then handle MyTestHandle on machine staf6e registers with the Event
> service
> machine (lucas) to be notified for events with type "build". It will be
> notified by handle name (which is the default), not by handle number.
>
> staf6e:~ root# STAF lucas EVENT REGISTER TYPE build
> Response
> --------
>
> To show the registration(s) for event type "build" on the Event service
> machine (lucas), you can list the registrations as follows:
>
> staf6e:~ root# STAF lucas EVENT LIST REGISTRATIONS TYPE build
> Response
> --------
> Type Subtype Machine Notify By Notifiee
> ----- ------- -------------------------------- --------- ------------
> build <None> ssl://staf6e.austin.ibm....@6550 Name MyTestHandle
>
> 2) Machine staf6e's MyTestHandle waits for a message with type
> "STAF/Service/Event" to be sent to its queue:
>
> The handle we created named MyTestHandleMachine on machine staf6e
> submits a
> local request to wait indefinitely for a message with type
> "STAF/Service/Event" to be sent to its queue. Note that every STAF
> handle
> has a queue associated with it.
>
> staf6e:~ root# STAF local QUEUE GET WAIT TYPE STAF/Service/Event
>
> This request will not complete until it receives a message with TYPE
> "STAF/Service/Event" on its queue (since I didn't specify a maximum wait
> time for the WAIT option).
>
> Note that you could submit this request after the event is generated
> instead of before the event is generated. It doesn't matter.
>
> 3) Machine staf1e generates an event with type build and subtype win32
> on
> the Event service machine lucas:
>
> Note that the event service machine (lucas) must give machine
> staf1e.austin.ibm.com trust level 4 or greater as that's the trust level
> that it requires to submit a GENERATE request to the Event service.
>
> [r...@staf1e ~]# STAF lucas EVENT GENERATE TYPE build SUBTYPE win32
> Response
> --------
> 2
>
> This triggers the Event service machine (lucas) to send a
> "STAF/Service/Event" type message to MyTestHandle's queue on machine
> staf6e.
>
> 4) The message arrives on MyTestHandle's queue on machine stat6e:
>
> The "STAF local QUEUE GET WAIT TYPE STAF/Service/Event" request
> previously
> submitted on machine staf6e completes when the message arrives on its
> queue:
>
> staf6e:~ root# STAF local QUEUE GET WAIT TYPE STAF/Service/Event
> Response
> --------
> {
> handle : 6
> handleName : STAF/SERVICE/Event
> machine : ssl://lucas.austin.ibm....@6550
> message : {
> eventID : 2
> eventServiceName: Event
> handle : 509
> handleName : STAF/Client
> machine : ssl://staf1e.austin.ibm....@6550
> propertyMap : {}
> subtype : win32
> timestamp : 20101014-13:35:55
> type : build
> }
> priority : 5
> staf-map-class-name: STAF/Service/Queue/Entry
> timestamp : 20101014-13:26:23
> type : STAF/Service/Event
> user : none://anonymous
> }
>
> --------------------------------------------------------------
> Sharon Lucas
> IBM Austin, luc...@us.ibm.com
> (512) 286-7313 or Tieline 363-7313
>
>
>
>
> From: Arve Knudsen <arve.knud...@gmail.com>
> To: Sharon Lucas/Austin/i...@ibmus
> Cc: staf-users@lists.sourceforge.net
> Date: 10/14/2010 12:55 PM
> Subject: Re: [staf-users] How do I receive an event from another
> machine?
>
>
>
> Hi Sharon
>
> I've now looked at the example, although it really showcases event
> propagation between two processes on the same machine rather than on two
> different machines. It looks quite similar to what I've been trying to
> do
> on the commandline however. Could you please provide a condensed
> commandline example that I can try out for myself, and see that it
> actually
> works?
>
> Thanks!
> Arve
>
> On Thu, Oct 14, 2010 at 6:12 PM, Sharon Lucas <luc...@us.ibm.com> wrote:
> The Event Service User's Guide at
> http://staf.sourceforge.net/current/event.pdf provides a working
> example
> in
> section "Example 1: Using the Event Service Via Two Java Applications"
> that
> includes registering for events, generating events, and and receving
> event
> messages on a STAFHandle's queue. Does that provide what you're
> looking
> for?
>
> --------------------------------------------------------------
> Sharon Lucas
> IBM Austin, luc...@us.ibm.com
> (512) 286-7313 or Tieline 363-7313
>
>
>
>
> From: Arve Knudsen <arve.knud...@gmail.com>
> To: staf-users@lists.sourceforge.net
> Date: 10/14/2010 10:58 AM
> Subject: [staf-users] How do I receive an event from another
> machine?
>
>
>
> Hello
>
> Can someone please provide me with a working example of how machine A
> can
> register for an event at machine B, and receive it etc.? I've tried and
> tried and can't seem to figure out how to make it work.
>
> Thanks!
> Arve
>
>
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