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Posted to fx-dev@ws.apache.org by Jeffrey Crump <jc...@sonicsoftware.com> on 2005/09/19 23:03:23 UTC
Anonymous reply for Request-Response
Hi,
I'm wondering what kind of support Sandesha offers for anonymous replies
for request/response operations. Our research is leading us to believe
that Sandesha does not support this feature. In fact, it seems that
when we supply the anonymous replyTo (e.g. by changing the Sandesha
samples) the server starts faulting with (405) Method Not Allowed as it
literally tries to send data to the anonymous URL!
In the architecture document supplied with the release, there is a
mysterious reference to a requirement that ReplyTo be set as
non-anonymous. Is this true? It would be suprising if this is really
not supported.
Thanks for the clarification.
-Jeff
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Re: Anonymous reply for Request-Response
Posted by Jaliya Ekanayake <ja...@opensource.lk>.
Hi Jeff,
I would like to focus your attention to the following scenario.
RM Source sends a request message
RM Destination sends an response (synchronously as you expect with an
acknowledgement )
This response is lost in the communication
What will happen now , how the RM Destination send a re-transmission of this
response.
In addition how we guarantee the reliability if the Web service request
takes some time to produce the output and during that time the synchronous
transmission (say HTTP) my probably time out.
In addition , MHO is if it is really request response messages, then it is
simply reliable since when we get a response we know that it has been
transmitted to the destination correctly.
When we implement Sandesha we mainly focused on messaging style
communication and since the RM specification is also focusing on mainly a
one way communication (see the scenario in the specification- there is no
reference to web service response as it can be considered as a new sequence)
we implemented it that way. In addition sandesha support both request only
and request response web service invocations and only difference is that the
response should come in a different communication path. In that case we are
inside the RM -Specification and may be missing a feature that we could
include with some effort. (It is not that straight forward with Axis 1.X)
At the moment IBM implementation support the feature you have mentioned but
Msft has come up with request/ response with dual channels only.
Hope this will explain why we didn't support what you have requested.
Thanks,
Jaliya
----- Original Message -----
From: "Jeffrey Crump" <jc...@sonicsoftware.com>
To: <sa...@ws.apache.org>
Sent: Monday, September 19, 2005 4:03 PM
Subject: Anonymous reply for Request-Response
Hi,
I'm wondering what kind of support Sandesha offers for anonymous replies
for request/response operations. Our research is leading us to believe
that Sandesha does not support this feature. In fact, it seems that
when we supply the anonymous replyTo (e.g. by changing the Sandesha
samples) the server starts faulting with (405) Method Not Allowed as it
literally tries to send data to the anonymous URL!
In the architecture document supplied with the release, there is a
mysterious reference to a requirement that ReplyTo be set as
non-anonymous. Is this true? It would be suprising if this is really
not supported.
Thanks for the clarification.
-Jeff
---------------------------------------------------------------------
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For additional commands, e-mail: sandesha-dev-help@ws.apache.org
---------------------------------------------------------------------
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Re: Anonymous reply for Request-Response
Posted by Chamikara Jayalath <ch...@gmail.com>.
Hi Jeff,
In WS-RM the reply messages have to come in a new RM channel. So before
sending the reply messages the RM-Destination have to send a new create
sequence request message to the original RM-Sender and get a create sequence
response. He has to use the sequence-id obtained by this as the sequnce id
for the reply messages. It is very difficult to do all these operations
synchronouly.
That is why Sandesha does not allow replyTo to be anonymous in
request-response communications. (since replyTo being anonymous asks to send
the reply messages Synchronously).
Chamikara
On 9/20/05, Jeffrey Crump <jc...@sonicsoftware.com> wrote:
>
> Hi,
>
> I'm wondering what kind of support Sandesha offers for anonymous replies
> for request/response operations. Our research is leading us to believe
> that Sandesha does not support this feature. In fact, it seems that
> when we supply the anonymous replyTo (e.g. by changing the Sandesha
> samples) the server starts faulting with (405) Method Not Allowed as it
> literally tries to send data to the anonymous URL!
>
> In the architecture document supplied with the release, there is a
> mysterious reference to a requirement that ReplyTo be set as
> non-anonymous. Is this true? It would be suprising if this is really
> not supported.
>
> Thanks for the clarification.
>
> -Jeff
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: sandesha-dev-unsubscribe@ws.apache.org
> For additional commands, e-mail: sandesha-dev-help@ws.apache.org
>
>
Re: Anonymous reply for Request-Response
Posted by Chamikara Jayalath <ch...@gmail.com>.
Hi Jeff,
In WS-RM the reply messages have to come in a new RM channel. So before
sending the reply messages the RM-Destination have to send a new create
sequence request message to the original RM-Sender and get a create sequence
response. He has to use the sequence-id obtained by this as the sequnce id
for the reply messages. It is very difficult to do all these operations
synchronouly.
That is why Sandesha does not allow replyTo to be anonymous in
request-response communications. (since replyTo being anonymous asks to send
the reply messages Synchronously).
Chamikara
On 9/20/05, Jeffrey Crump <jc...@sonicsoftware.com> wrote:
>
> Hi,
>
> I'm wondering what kind of support Sandesha offers for anonymous replies
> for request/response operations. Our research is leading us to believe
> that Sandesha does not support this feature. In fact, it seems that
> when we supply the anonymous replyTo (e.g. by changing the Sandesha
> samples) the server starts faulting with (405) Method Not Allowed as it
> literally tries to send data to the anonymous URL!
>
> In the architecture document supplied with the release, there is a
> mysterious reference to a requirement that ReplyTo be set as
> non-anonymous. Is this true? It would be suprising if this is really
> not supported.
>
> Thanks for the clarification.
>
> -Jeff
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: sandesha-dev-unsubscribe@ws.apache.org
> For additional commands, e-mail: sandesha-dev-help@ws.apache.org
>
>
Re: Anonymous reply for Request-Response
Posted by Jaliya Ekanayake <ja...@opensource.lk>.
Hi Jeff,
I would like to focus your attention to the following scenario.
RM Source sends a request message
RM Destination sends an response (synchronously as you expect with an
acknowledgement )
This response is lost in the communication
What will happen now , how the RM Destination send a re-transmission of this
response.
In addition how we guarantee the reliability if the Web service request
takes some time to produce the output and during that time the synchronous
transmission (say HTTP) my probably time out.
In addition , MHO is if it is really request response messages, then it is
simply reliable since when we get a response we know that it has been
transmitted to the destination correctly.
When we implement Sandesha we mainly focused on messaging style
communication and since the RM specification is also focusing on mainly a
one way communication (see the scenario in the specification- there is no
reference to web service response as it can be considered as a new sequence)
we implemented it that way. In addition sandesha support both request only
and request response web service invocations and only difference is that the
response should come in a different communication path. In that case we are
inside the RM -Specification and may be missing a feature that we could
include with some effort. (It is not that straight forward with Axis 1.X)
At the moment IBM implementation support the feature you have mentioned but
Msft has come up with request/ response with dual channels only.
Hope this will explain why we didn't support what you have requested.
Thanks,
Jaliya
----- Original Message -----
From: "Jeffrey Crump" <jc...@sonicsoftware.com>
To: <sa...@ws.apache.org>
Sent: Monday, September 19, 2005 4:03 PM
Subject: Anonymous reply for Request-Response
Hi,
I'm wondering what kind of support Sandesha offers for anonymous replies
for request/response operations. Our research is leading us to believe
that Sandesha does not support this feature. In fact, it seems that
when we supply the anonymous replyTo (e.g. by changing the Sandesha
samples) the server starts faulting with (405) Method Not Allowed as it
literally tries to send data to the anonymous URL!
In the architecture document supplied with the release, there is a
mysterious reference to a requirement that ReplyTo be set as
non-anonymous. Is this true? It would be suprising if this is really
not supported.
Thanks for the clarification.
-Jeff
---------------------------------------------------------------------
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For additional commands, e-mail: sandesha-dev-help@ws.apache.org
---------------------------------------------------------------------
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