[Dart] Questions about submission methods to a Dart server

Mon Jun 19 11:30:16 EDT 2006

> Zach may or may not have
> mentioned it already, but he has integrated a Dart-client reporting
> capability into our dsgrid client

Are you using Dart1 or Dart2 server?  If you are using Dart2, could you
make some details/code available for the format of the XML you are
submitting to the server?

I am also submitting to Dart (using xmlrpc), from a non-Dart client
(cruisecontrol), by generating the appropriate XML.  I have some issues
related to the format of the XML that I have been unable to resolve, due
to lack of detail on the expected format.  Any pointers you could
provide would be great.

Thanks,
Scott

Scott Oster

Senior Research Specialist
Biomedical Informatics Department
Ohio State University
oster at bmi.osu.edu
lab: 614-292-9845
voice mail: 614-292-8680
> -----Original Message-----
> From: dart-bounces+oster=bmi.osu.edu at public.kitware.com [mailto:dart-
> bounces+oster=bmi.osu.edu at public.kitware.com] On Behalf Of Matt
England
> Sent: Monday, June 19, 2006 2:54 PM
> To: Blezek, Daniel J (GE, Research)
> Cc: Miller, James V (GE, Research); dart at public.kitware.com
> Subject: RE: [Dart] Questions about submission methods to a Dart
server
> 
> Dan,
> 
> Any chance we could possibly contribute to the HTTP-PUT-in-the-Dart2-
> server
> efforts?  I envision us (I work with Zach on this project) potentially
> updating the Java code base for this stuff.  We are already making
> additionally server-side code (in a separate server app accepting HTTP
> PUTs
> that dumps the input to a file, attempting to "throw it over the
fence" to
> a Dart2 server) to get around the HTTP-PUT inability.
> 
> Is the Dart2 server "reception area" in such a modular state such that
> outsiders like us can come in and add another "receiver" translation?
> 
> We do speak Java even though most of our project is a C++ based
one...even
> though I often complain about using Java-based software from a user's
> perspective.  :)
> 
> If this all works for you guys, could you possibly provide any
pointers?
> 
> 
> More details:
> 
> I work with Zach on the Cleversafe project.  Zach may or may not have
> mentioned it already, but he has integrated a Dart-client reporting
> capability into our dsgrid client
> (<http://wiki.cleversafe.org/Client_Getting_Started_Guide>).
> 
> fyi, We avoided the XMLRPC stuff becuase a XMLRPC dependence was less
> attractive then a simple HTTP dependence for our C++ code base (in
> essence,
> libcurl was a lot easier then libxmlrpc-c for cross-platform and other
> reasons).
> 
> For what it's worth, from the list above, HTTP PUT seems to be the
> most-preferred method for us, and that's because it's our best
combination
> of the following:
> 
> 1) it's probably the flavor that causes the least amount of work for
> client
> software to construct and send a Dart datum.
> 2) It causes the least external dependence.  You don't need an SMTP
server
> (for email), you don't need an instant-msg infrastructure, etc.
> 
> Sockets might be a close second for us in terms of preference,
especially
> if there's a low protocol overhead for us to manage to talk to Dart2;
we
> already manage direct sockets already in our code.
> 
> I haven't talked with Zach or the rest of our team about this yet, but
I
> wanted to get the conversation on the Dart side going quickly, for
> automated test reporting is quickly becoming a software-delivery
> bottleneck.
> 
> -Matt
> 
> 
> At 6/19/2006 07:51 AM, Blezek, Daniel J (GE, Research) wrote:
> >Zachary, Jim,
> >
> >   I don't think this would be much of a problem at all.  One of our
> > design thoughts was to allow arbitrary methods of submissions, but
> XMLRPC
> > has been the only one implemented.  Other thoughts were:
> >
> >- email
> >- monitor a directory (hard because you don't want to get a
submission
> >before it's complete)
> >- monitor an ftp site /pub/incomming for instance
> >- HTTP PUT
> >- IM
> >- plain old sockets
> >
> >HTTP PUT shouldn't comprise any security risk or other problems.
> >
> >We are headed for a new release this week, I'm not sure if I can get
this
> >done by then or not, but I'll put it on the TODO list.
> >
> >-dan
> >
> >-----Original Message-----
> >From: dart-bounces+blezek=crd.ge.com at public.kitware.com
> >[mailto:dart-bounces+blezek=crd.ge.com at public.kitware.com]On Behalf
Of
> >Miller, James V (GE, Research)
> >Sent: Monday, June 19, 2006 8:18 AM
> >To: Zachary Mark; dart at public.kitware.com
> >Subject: RE: [Dart] Questions about submission methods to a Dart
server
> >
> >
> >Zachary,
> >
> >Dart 2 can only accept submissions via xmlrpc.  The previous Dart
system
> >(Dart Classic) could accept submissions via a drop box or via a HTTP
PUT.
> >
> >XMLRPC and HTTP PUT are not too different (practically). XMLRPC adds
a
> >bit more protocol and handshaking to the communication.  I'll talk to
Dan
> >Blezek about whether supporting HTTP PUT would comprimise the Dart
server
> >in any way.
> >
> >Jim
> >
> >
> >
> >-----Original Message-----
> >From: dart-bounces+millerjv=crd.ge.com at public.kitware.com
> >[mailto:dart-bounces+millerjv=crd.ge.com at public.kitware.com]On Behalf
Of
> >Zachary Mark
> >Sent: Friday, June 16, 2006 8:50 PM
> >To: dart at public.kitware.com
> >Subject: [Dart] Questions about submission methods to a Dart server
> >
> >
> >Hello,
> >
> >I am in the process of writing an application.  For this application,
we
> >wish to utilize Dart as a means of collecting unit build and test
> >reports.  We currently have a testing framework in place which
generates
> >XML in a format that our installation of Dart seems to recognize just
> >fine (submitted though xmlrpc via the official dartclient).
> >
> >I have read about the various submission methods by which we can
submit
> >a test result XML document to a Dart server.  While xmlrpc seems to
be
> >ideal, we already have a method in place to submit arbitrary data via
> >HTTP PUT, so using HTTP PUT allows us the quickest and easiest method
of
> >implementation.  While I understand that the CTest client can submit
by
> >any method available, including xmlrpc, we would greatly prefer to
not
> >be required to include CTest as a part of our software distribution.
> >
> >What I am looking for is some clarification on how I can use HTTP PUT
to
> >submit an in-memory buffer containing XML data to a waiting Dart
> >server.  For the sake of example, assume that I have a running Dart
> >server at http://dart-server.com:8081 and I have a project named
> >SampleProject, so that viewing
http://dart-server.com:8081/SampleProject
> >would bring up the SampleProject dashboard.
> >
> >Here are some questions related to these assumptions, please tell me
if
> >I'm completely off-base:
> >
> >1) Can the running Dart server accept a direct submission via a raw
HTTP
> >PUT?  For example, I have a method which sends a standard PUT request
> >which looks like:
> >       void sendHTTPPutRequest(std::string url, MemoryBuffer buf)
> >
> >Assuming that buf contains the XML result that I would be submitting,
if
> >this method is possible, how would I format the URL so that Dart
could
> >accept a submission via this method?  I have attempted some
permutations
> >of this URL but without success.  If it is possible to submit via
this
> >method, I envision a URL that looks something like
> >"http://dart-server.com:8081/SampleProject/SubmissionHandler".
> >
> >2) If this is not possible, I believe (though I am not 100% certain)
> >that Dart is able to accept submissions via a predefined drop box,
which
> >seems to be a folder on the Dart server's file system.  For example,
I
> >send a test result to a waiting servlet which writes the data to a
drop
> >box folder which Dart polls with some frequency.  Am I correct in my
> >assumption that Dart has this drop-box functionality?  If so, the
> >servlet that would enable this functionality would be trivial to
> implement.
> >
> >Thank you and I am looking forward to your responses.
> >
> >-- Zachary Mark
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