[ros-users] rosjava xmlRpcPort issue

Thu Jun 9 13:10:35 UTC 2011

I will raise issue and add all details to issue.
If I get some time this weekend Will look for fix.

Thanks and Regards
Abhishek Verma

On Thu, Jun 9, 2011 at 1:55 PM, Damon Kohler <damonkohler at google.com> wrote:

> Interesting. Please do file an issue:
>
> http://code.google.com/p/rosjava/issues/list
>
> If you can enumerate some steps to reproduce the problem, that would
> be great. Or, if you make a patch to fix it, post it on the issue.
>
> Thanks,
> Damon
>
> On Thu, Jun 9, 2011 at 2:50 PM, Abhishek Verma
> <toabhishekverma at gmail.com> wrote:
> > Hi All,
> > My Issue get resolved.
> > I missed to add commons-codec-1.3.jar in my class path which was
> > resulting org.apache.commons.codec.DecoderException in
> > XmlRpcClientWorker.execute(final XmlRpcRequest pRequest,final
> AsyncCallback
> > pCallback).
> > As this code is using reflection to create a object (dont know why)
> but it
> > results corrupted node (NodeType) object in NodeClient(URI uri,
> > Class<NodeType> interfaceClass). (line 59).
> > I just printed Node object in constructor NodeClient() and
> > Its printing stacktrace of DecoderException. As I havent done much of
> > Reflection, dont know the reason.
> > Damon do you think this is a issue and should be fixed in code?
> > Can you add me as contributors in project? If yes I can digg down this
> issue
> > and look for fix.
> > Else I will like to proceed with just adding required library in path.
> >
> > Thanks and Regards
> > Abhishek Verma
> >
> >
> > On Wed, Jun 8, 2011 at 3:19 PM, Abhishek Verma <
> toabhishekverma at gmail.com>
> > wrote:
> >>
> >> Sorry Damon, My Mistake
> >> NodeConfiguration has member xmlRpcPort which is 0 by default.
> >> Its not set any where and is used to creare tcpRosBindAddress and passed
> >> to SlaveServer as a parameter.(See internal node constructor)
> >> SlaveServer is later using it to create TcpRosServer. and so on.
> >> Thanks and Regards
> >> Abhishek Verma
> >>
> >>
> >> On Wed, Jun 8, 2011 at 3:02 PM, Damon Kohler <damonkohler at google.com>
> >> wrote:
> >>>
> >>> On Wed, Jun 8, 2011 at 3:56 PM, Abhishek Verma
> >>> <toabhishekverma at gmail.com> wrote:
> >>> > Hi Damon,
> >>> > There are no errors.
> >>>
> >>> Ok.
> >>>
> >>> > Talker is publishing message but Listener is not getting it.
> >>>
> >>> Can you see the messages using rostopic echo? What about if you use
> >>> roscore instead of the RosCore class in rosjava?
> >>>
> >>> > They are not in same channel I mean Listener and Talker cant reach
> each
> >>> > other.
> >>> > I suppose by giving same master uri, both should be able to
> >>> > communicate.
> >>>
> >>> Correct.
> >>>
> >>> > is xmlRpcPort is used in this communication?
> >>>
> >>> Which argument is it exactly you're asking about? I don't see it
> >>> specified in your code snippet.
> >>>
> >>> In general, a port argument of 0 means that the OS should pick an
> >>> available port to bind to.
> >>>
> >>> > Thanks and Regards
> >>> > Abhishek Verma
> >>> >
> >>> >
> >>> > On Wed, Jun 8, 2011 at 2:06 PM, Damon Kohler <damonkohler at google.com
> >
> >>> > wrote:
> >>> >>
> >>> >> Hi,
> >>> >>
> >>> >> Could you add some additional information?
> >>> >>
> >>> >> Are you getting any errors? How about stack traces?
> >>> >>
> >>> >> Thanks,
> >>> >> Damon
> >>> >>
> >>> >> On Wed, Jun 8, 2011 at 2:59 PM, Abhishek Verma
> >>> >> <toabhishekverma at gmail.com> wrote:
> >>> >> > Hi Friends,
> >>> >> > I am new to Ros an rosjava and tying to do something on my PC.
> >>> >> > I am not sure its correct or not.
> >>> >> > I am using rosjava on my Linux (ubuntu 10.4).
> >>> >> > Currently I am trying to run rosjava alone. and trying to use
> Talker
> >>> >> > and
> >>> >> > Listener example available in source.
> >>> >> > I am starting Ros core and talker and listener by following
> commands
> >>> >> > RosCore --
> >>> >> > rosCore = new RosCore(11311);
> >>> >> > nodeRunner = NodeRunner.createDefault();
> >>> >> > nodeRunner.run(rosCore, Lists.newArrayList("RosCore",
> >>> >> > "__master:=http://localhost:11311"));
> >>> >> > Talker
> >>> >> >  nodeRunner.run(new Talker(),Lists.newArrayList("talker",
> >>> >> > "__ip:=127.0.0.1",
> >>> >> > "__master:=http://localhost:11311"));
> >>> >> > Listener
> >>> >> >  nodeRunner.run(new Listener(),Lists.newArrayList("listener",
> >>> >> > "__ip:=127.0.0.1", "__master:=http://localhost:11311"));
> >>> >> > Publisher and subscriber are not able to communicate. AndI am
> trying
> >>> >> > to
> >>> >> > understand why..
> >>> >> > I found that value of xmlRpcPort is 0 and not changed anywhere.
> >>> >> > Am I doing right thing by running rosjava alone?
> >>> >> > Is xmlRpcPort port need to set? whats is it for? I suppose it
> might
> >>> >> > be
> >>> >> > for
> >>> >> > remote communication with RcpCore (or MasterServer)
> >>> >> > in my case rosroot and ros package paths are empty...is that ok?
> >>> >> > Thanks and Regards
> >>> >> > Abhishek Verma
> >>> >> >
> >>> >> > _______________________________________________
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> >>> >> >
> >>> >> >
> >>> >>
> >>> >>
> >>> >>
> >>> >> --
> >>> >> ----------------------------------------------
> >>> >> Damon Kohler
> >>> >> Software Engineer
> >>> >>
> >>> >> Google Germany GmbH
> >>> >> Dienerstr. 12
> >>> >> 80331 München
> >>> >> ----------------------------------------------
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> >>> >> ----------------------------------------------
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> >>> >>
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> >>> >
> >>>
> >>>
> >>>
> >>> --
> >>> ----------------------------------------------
> >>> Damon Kohler
> >>> Software Engineer
> >>>
> >>> Google Germany GmbH
> >>> Dienerstr. 12
> >>> 80331 München
> >>> ----------------------------------------------
> >>> AG Hamburg, HRB 86891
> >>> Sitz der Gesellschaft: Hamburg
> >>> Geschäftsführer: John Herlihy, Graham Law, Lloyd Martin, Kent Walker
> >>> ----------------------------------------------
> >>> Diese E-Mail ist vertraulich. Wenn Sie nicht der richtige Adressat
> >>> sind, leiten Sie diese bitte nicht weiter, informieren den Absender
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> >>>
> >>> This email is confidential. If you are not the right addressee please
> >>> do not forward it, please inform the sender, and please erase this
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> >>
> >
> >
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> >
> >
>
>
>
> --
> ----------------------------------------------
> Damon Kohler
> Software Engineer
>
> Google Germany GmbH
> Dienerstr. 12
> 80331 München
> ----------------------------------------------
> AG Hamburg, HRB 86891
> Sitz der Gesellschaft: Hamburg
> Geschäftsführer: John Herlihy, Graham Law, Lloyd Martin, Kent Walker
> ----------------------------------------------
> Diese E-Mail ist vertraulich. Wenn Sie nicht der richtige Adressat
> sind, leiten Sie diese bitte nicht weiter, informieren den Absender
> und löschen Sie die E-Mail und alle Anhänge. Vielen Dank.
>
> This email is confidential. If you are not the right addressee please
> do not forward it, please inform the sender, and please erase this
> e-mail including any attachments. Thanks.
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