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

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
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>>
>>
>
>
>

-- 
Tomoichi Takahashi, Dr. Eng.
 Meijo University, Department of Information Sciences
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