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Posted to dev@stratos.apache.org by "Martin Eppel (meppel)" <me...@cisco.com> on 2014/09/18 18:42:32 UTC
exception handling in StratosManagerTopologyEventReceiver ?
Hi,
For the grouping feature (developed on 4.0.0-grouping branch) I am adding the persistence of an application subscription when the ApplicationCreatedEvent is received in the stratos manager (StratosManagerTopologyEventReceiver). Persisting the application required to handle some exception, which would have to be handled in the event receiver, either handle it (log it) or re-throw it. How is this type of scenario typically handled within the stratos frame work, I couldn't find any other similar examples ?
Thanks
Martin
RE: exception handling in StratosManagerTopologyEventReceiver ?
Posted by "Martin Eppel (meppel)" <me...@cisco.com>.
Ok,
Makes sense, that’s what I implemented
Thanks
Martin
From: isuruh@wso2.com [mailto:isuruh@wso2.com] On Behalf Of Isuru Haththotuwa
Sent: Thursday, September 18, 2014 6:34 PM
To: Martin Eppel (meppel)
Cc: Reka Thirunavukkarasu; dev@stratos.apache.org
Subject: Re: exception handling in StratosManagerTopologyEventReceiver ?
On Thu, Sep 18, 2014 at 10:27 PM, Martin Eppel (meppel) <me...@cisco.com>> wrote:
Sounds good,
Thanks
Martin
From: Reka Thirunavukkarasu [mailto:reka@wso2.com<ma...@wso2.com>]
Sent: Thursday, September 18, 2014 9:55 AM
To: Martin Eppel (meppel)
Cc: dev@stratos.apache.org<ma...@stratos.apache.org>; Isuru Haththotuwa (isuruh@wso2.com<ma...@wso2.com>)
Subject: Re: exception handling in StratosManagerTopologyEventReceiver ?
Hi Martin,
If it is in the StratosManagerTopologyEventReceiver when receiving event in the listener, AFAIK we have handled it there itself rather throwing it. I just checked the way it is handled in AutoscalerTopologyEventReceiver.
+1, We should not throw it. If we do, the Topology receiver thread may get terminated.
Thanks,
Reka
On Thu, Sep 18, 2014 at 10:12 PM, Martin Eppel (meppel) <me...@cisco.com>> wrote:
Hi,
For the grouping feature (developed on 4.0.0-grouping branch) I am adding the persistence of an application subscription when the ApplicationCreatedEvent is received in the stratos manager (StratosManagerTopologyEventReceiver). Persisting the application required to handle some exception, which would have to be handled in the event receiver, either handle it (log it) or re-throw it. How is this type of scenario typically handled within the stratos frame work, I couldn’t find any other similar examples ?
Thanks
Martin
--
Reka Thirunavukkarasu
Senior Software Engineer,
WSO2, Inc.:http://wso2.com,
Mobile: +94776442007
--
<tel:%2B94776442007>
Thanks and Regards,
Isuru H.
<tel:%2B94776442007>
+94 716 358 048<tel:%2B94776442007>
Re: exception handling in StratosManagerTopologyEventReceiver ?
Posted by Isuru Haththotuwa <is...@apache.org>.
On Thu, Sep 18, 2014 at 10:27 PM, Martin Eppel (meppel) <me...@cisco.com>
wrote:
> Sounds good,
>
>
>
> Thanks
>
>
>
> Martin
>
>
>
> *From:* Reka Thirunavukkarasu [mailto:reka@wso2.com]
> *Sent:* Thursday, September 18, 2014 9:55 AM
> *To:* Martin Eppel (meppel)
> *Cc:* dev@stratos.apache.org; Isuru Haththotuwa (isuruh@wso2.com)
> *Subject:* Re: exception handling in StratosManagerTopologyEventReceiver ?
>
>
>
> Hi Martin,
>
>
>
> If it is in the StratosManagerTopologyEventReceiver when receiving event
> in the listener, AFAIK we have handled it there itself rather throwing it.
> I just checked the way it is handled in AutoscalerTopologyEventReceiver.
>
+1, We should not throw it. If we do, the Topology receiver thread may get
terminated.
>
>
> Thanks,
>
> Reka
>
>
>
> On Thu, Sep 18, 2014 at 10:12 PM, Martin Eppel (meppel) <me...@cisco.com>
> wrote:
>
> Hi,
>
> For the grouping feature (developed on 4.0.0-grouping branch) I am adding
> the persistence of an application subscription when the
> ApplicationCreatedEvent is received in the stratos manager
> (StratosManagerTopologyEventReceiver). Persisting the application required
> to handle some exception, which would have to be handled in the event
> receiver, either handle it (log it) or re-throw it. How is this type of
> scenario typically handled within the stratos frame work, I couldn’t find
> any other similar examples ?
>
> Thanks
>
> Martin
>
>
>
>
>
>
>
>
>
> --
>
> Reka Thirunavukkarasu
> Senior Software Engineer,
> WSO2, Inc.:http://wso2.com,
>
> Mobile: +94776442007
>
> --
> <%2B94776442007>
> Thanks and Regards,
>
> Isuru H.
> <%2B94776442007>
> +94 716 358 048 <%2B94776442007>* <http://wso2.com/>*
>
>
> * <http://wso2.com/>*
>
>
>
RE: exception handling in StratosManagerTopologyEventReceiver ?
Posted by "Martin Eppel (meppel)" <me...@cisco.com>.
Sounds good,
Thanks
Martin
From: Reka Thirunavukkarasu [mailto:reka@wso2.com]
Sent: Thursday, September 18, 2014 9:55 AM
To: Martin Eppel (meppel)
Cc: dev@stratos.apache.org; Isuru Haththotuwa (isuruh@wso2.com)
Subject: Re: exception handling in StratosManagerTopologyEventReceiver ?
Hi Martin,
If it is in the StratosManagerTopologyEventReceiver when receiving event in the listener, AFAIK we have handled it there itself rather throwing it. I just checked the way it is handled in AutoscalerTopologyEventReceiver.
Thanks,
Reka
On Thu, Sep 18, 2014 at 10:12 PM, Martin Eppel (meppel) <me...@cisco.com>> wrote:
Hi,
For the grouping feature (developed on 4.0.0-grouping branch) I am adding the persistence of an application subscription when the ApplicationCreatedEvent is received in the stratos manager (StratosManagerTopologyEventReceiver). Persisting the application required to handle some exception, which would have to be handled in the event receiver, either handle it (log it) or re-throw it. How is this type of scenario typically handled within the stratos frame work, I couldn’t find any other similar examples ?
Thanks
Martin
--
Reka Thirunavukkarasu
Senior Software Engineer,
WSO2, Inc.:http://wso2.com,
Mobile: +94776442007
Re: exception handling in StratosManagerTopologyEventReceiver ?
Posted by Reka Thirunavukkarasu <re...@wso2.com>.
Hi Martin,
If it is in the StratosManagerTopologyEventReceiver when receiving event in
the listener, AFAIK we have handled it there itself rather throwing it. I
just checked the way it is handled in AutoscalerTopologyEventReceiver.
Thanks,
Reka
On Thu, Sep 18, 2014 at 10:12 PM, Martin Eppel (meppel) <me...@cisco.com>
wrote:
> Hi,
>
> For the grouping feature (developed on 4.0.0-grouping branch) I am adding
> the persistence of an application subscription when the
> ApplicationCreatedEvent is received in the stratos manager
> (StratosManagerTopologyEventReceiver). Persisting the application required
> to handle some exception, which would have to be handled in the event
> receiver, either handle it (log it) or re-throw it. How is this type of
> scenario typically handled within the stratos frame work, I couldn’t find
> any other similar examples ?
>
> Thanks
>
> Martin
>
>
>
>
>
--
Reka Thirunavukkarasu
Senior Software Engineer,
WSO2, Inc.:http://wso2.com,
Mobile: +94776442007