Re: [robocup-rescue-s] yab api for 0.49.x

From: Hossein Azizpour <azizpour@gmail.com>
Date: Tue 13 Jun 2006 - 09:57:48 GMT

Dear all,

It can be handled as david said with no problem, the fact is that kernel
sends a message called "Simulation Has Finished", that the packet cause this
error at the end of the simulation.

Regards,

On 6/13/06, Tomoichi Takahashi <ttaka@ccmfs.meijo-u.ac.jp> wrote:
>
> I also met the same probelm and did similar one.
>
> Tomoichi
>
> David Ojeda wrote:
>
> >Here is the 'easy fix' for the receive method. With this change I managed
> >to run the sample agents with no troubles. I'm sure there is a better or
> prettier
> >way to do this, but I was desperate.
> >
> > public byte[] receive() {
> > try{
> > int length = 0;
> > int temp = -1;
> > while (temp == -1) temp = in.read();
> > length = temp;
> > temp = -1;
> > while (temp == -1) temp = in.read();
> > length = length<<8 | temp;
> > temp = -1;
> > while (temp == -1) temp = in.read();
> > length = length<<8 | temp;
> > temp = -1;
> > while (temp == -1) temp = in.read();
> > length = length<<8 | temp;
> > byte[] buffer = new byte[length];
> > int total = 0;
> > while (total < length) {
> > total += in.read(buffer,total,length-total);
> > }
> > return buffer;
> > }catch(Exception e){
> > e.printStackTrace();
> > if(e instanceof java.net.SocketException)
> > System.exit(0);
> > }
> > return null;
> > }
> >
> >I still wonder... am I the only one getting this error?
> >
> >On Mon, Jun 12, 2006 at 11:13:11AM -0400, David Ojeda wrote:
> >
> >
> >>Dear Hossein,
> >>
> >>I've tried with Saboorian's release with no luck (same errors).
> >>I also tried yours and I'm still having some troubles communicating with
> the
> >>kernel. This time a negative array is created because the receive method
> >>fails:
> >> int length = in.read();
> >> length = length<<8 | in.read();
> >> length = length<<8 | in.read();
> >> length = length<<8 | in.read();
> >> byte[] buffer = new byte[length];
> >>since DatainputStream.read returns -1 when it couldn't read from the
> socket,
> >>then there must be a communication problem.
> >>This could be easy to fix if I just check for negative values on every
> >>in.read(), but I'm just wondering... am I the only one experiencing
> these
> >>problems? Does this version works out-of-the-box for you?
> >>
> >>thanks,
> >>David
> >>
> >>ps: I'm using rescue-0.49.8
> >>
> >>On Sunday 04 June 2006 18:50, Hossein Azizpour wrote:
> >>
> >>
> >>>Dear David,
> >>>
> >>>There is no header type like '1174405120', you might be using an old
> >>>version of yabAPI that is not compatible with the new communication
> >>>protocol of kernel 0.49.x.
> >>>
> >>>Property type '47' is for temperature of a building sent as a property
> of
> >>>building object.
> >>>
> >>>You may use 0.49 compatible yabAPI available on our website:
> >>>http://ce.aut.ac.ir/~sos/downloads.htm<
> http://ce.aut.ac.ir/%7Esos/downloads
> >>>.htm>(temporarily down!)
> >>> or the one released by Mr.Saboorian:
> >>>http://saviour.siahe.com/yab/yabapi-1.49.tar.gz
> >>>you can also use rescuecore available with the kernel package, if you
> don't
> >>>insist on using yabAPI base code.
> >>>
> >>>Regards,
> >>>
> >>>On 6/5/06, David Ojeda <david@gia.usb.ve> wrote:
> >>>
> >>>
> >>>>Hello all,
> >>>>
> >>>>I am having some trouble migrating to the newest versions of the
> >>>>simulator.
> >>>>I've tried with several versions of yabAPI with no luck at all. I keep
> >>>>getting these errors:
> >>>>
> >>>>
> >>>>Exception in thread "Thread-1" java.lang.Error: received illegal
> >>>>header:1174405120
> >>>> at yab.io.RCRSSProtocolSocket.getBlock(Unknown Source)
> >>>> at yab.io.RCRSSProtocolSocket.receive(Unknown Source)
> >>>> at yab.agent.Agent.run(Unknown Source)
> >>>>
> >>>>...
> >>>>
> >>>>Exception in thread "Thread-9" java.lang.Error: received illegal
> >>>>header:18176
> >>>> at yab.io.RCRSSProtocolSocket.getBlock(Unknown Source)
> >>>> at yab.io.RCRSSProtocolSocket.receive(Unknown Source)
> >>>> at yab.agent.Agent.run(Unknown Source)
> >>>>
> >>>>...
> >>>>
> >>>>And a lot of unrecognized properties:
> >>>>Unrecognised property: 47
> >>>>
> >>>>
> >>>>Can anyone help me?
> >>>>
> >>>>Thanks
> >>>>
> >>>>--
> >>>>David Ojeda A.
> >>>>Grupo de Inteligencia Artificial
> >>>>Universidad Simón Bolívar
> >>>>_______________________________________________
> >>>>robocup-rescue-s mailing list
> >>>>robocup-rescue-s@mailman.cc.gatech.edu
> >>>>https://mailman.cc.gatech.edu/mailman/listinfo/robocup-rescue-s
> >>>>
> >>>>
> >>--
> >>David Ojeda A.
> >>Grupo de Inteligencia Artificial
> >>Universidad Simón Bolívar
> >>_______________________________________________
> >>robocup-rescue-s mailing list
> >>robocup-rescue-s@mailman.cc.gatech.edu
> >>https://mailman.cc.gatech.edu/mailman/listinfo/robocup-rescue-s
> >>_______________________________________________
> >>rcrss mailing list
> >>rcrss@gia.usb.ve
> >>http://www.gia.usb.ve/mailman/listinfo/rcrss
> >>
> >>
> >>
> >
> >
> >
>
>
> --
> Tomoichi Takahashi, Dr. Eng.
> Meijo University, Department of Information Sciences
> 1-501 Shiogamaguchi, Tenpaku, Nagoya, 468-8502 JAPAN
> fax: + 81 52 832 1298
> e-mail: ttaka@ccmfs.meijo-u.ac.jp
> http://sakura.meijo-u.ac.jp/TakaLab/
> -- --
> 高橋友一
> 名城大学 理工学部 情報工学科
> 〒468-8502 名古屋市天白区塩釜口1-501
> tel: 052-832-1151 (内線 5066) (dial in 838-2295)
> fax: 052-832-1298
>
>
>

-- 
Hossein Azizpour,
Member of S.O.S team,
Robocup Researches Center,
Amirkabir University of Technology,

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Received on Tue Jun 13 12:17:29 2006

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