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From: "Arnie Chien" <achien@knfbreader.com>
To: "'Apache AXIS C User List'" <axis-c-user@ws.apache.org>
Subject: RE: problem with upload to REST-enabled service
Date: Tue, 9 Sep 2008 16:12:00 -0400
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I made some progress but still need help.  The reason I set the Content-Type
in my request header to "text/xml" is from reading this:
http://ws.apache.org/axis2/0_94/rest-ws.html
according to which "text/xml" is required for a message to be treated as
RESTful. The doc is for java, I assumed the same for axis2c.

But I find that when Content-Type is changed to
"application/x-www-form-urlencoded", the problem of a null top-level
axiom_node_t goes away and a test POST message is received and processed
successfully by my service.  

However, "application/x-www-form-urlencoded" is not really what I want.
When I try "image/jpeg" or "application/octet-stream", the server reports
that those types are not supported.  So now my question is, if I want to
upload an image by POST how should I set the Content-Type of the http
request?  Would appreciate advice-

-----Original Message-----
From: Arnie Chien [mailto:achien@knfbreader.com] 
Sent: Monday, September 08, 2008 5:21 PM
To: 'Apache AXIS C User List'
Subject: RE: problem with upload to REST-enabled service

I see the following with tcpmon:

C:\axis2c\bin\tools>tcpmon
Listen port : 9090 Target port : 8080 Target host: localhost
SENDING DATA..
/* sending time = 12:59:17*/
/* message uuid = bcfa81c7-213a-4e8e-b60f-5405ba9dd283*/
---------------------
POST /axis2/services/KIPSvc/getVC HTTP/1.1
TE: deflate,gzip;q=0.3
Connection: TE, close
Host: 192.168.2.16:9090
User-Agent: libwww-perl/5.806
Content-Length: 43
Content-Type: text/xml
upfile=c%3A%2Ftestdb%2F478359.jpg
ERROR: error in creating the host socket


This is a POST; tcpmon reports the same error when I do a GET.  But, for a
POST I have the problem I described originally (i.e. the axiom_node_t
argument of the getVC operation is null), even when I don't actually try to
upload anything.  Whereas for a GET I do not have that problem, and
everything works fine.  

I haven't been able to find help in the archives or documentation, would
appreciate any suggestions.


-----Original Message-----
From: Samisa Abeysinghe [mailto:samisa@wso2.com] 
Sent: Sunday, September 07, 2008 10:48 AM
To: Apache AXIS C User List
Subject: Re: problem with upload to REST-enabled service

Arnie Chien wrote:
> Ok thanks.  In the meantime, can you tell me whether I'm right that it
> should be possible for this to work when the client is not written to the
> axis2 api, and just sends standard http requests?
>   

Correct.

Samisa...

> -----Original Message-----
> From: Samisa Abeysinghe [mailto:samisa@wso2.com] 
> Sent: Friday, September 05, 2008 11:23 AM
> To: Apache AXIS C User List
> Subject: Re: problem with upload to REST-enabled service
>
> Arnie Chien wrote:
>   
>> Do you mean verify what the message is as it leaves the client?    I
don't
>> know how to capture it on the server if the service operation is not
>> receiving anything.  
>>     
>
> Try using TCPMon.
>
> Samisa...
>
>   
>> I'm new to axis so would appreciate if you could advise
>> me.  In case it helps, the log reads:
>>
>> [Thu Sep 04 18:06:08 2008] [debug]
>> ..\..\src\core\transport\http\common\http_worker.c(192) Client HTTP
>>     
> version
>   
>> HTTP/1.1
>> [Thu Sep 04 18:06:08 2008] [debug]
>> ..\..\src\core\transport\http\util\http_transport_utils.c(289) HTTP
stream
>> chunked
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\rest_disp.c(113)
>> Checking for service using target endpoint address :
>> http://12.11.162.2:9090/axis2/services/KIPSvc/getVC
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\rest_disp.c(134)
>> Service found using target endpoint address
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\rest_disp.c(201)
>> Checking for operation using REST HTTP Location fragment : /getVC
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\rest_disp.c(209)
>> Operation found using target endpoint uri fragment
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler request_uri_based_dispatcher within the phase Transport
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler AddressingInHandler within the phase Transport
>> [Thu Sep 04 18:06:09 2008] [info]  Starting addressing in handler
>> [Thu Sep 04 18:06:09 2008] [info]
>> ..\..\src\modules\mod_addr\addr_in_handler.c
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler addressing_based_dispatcher within the phase Transport
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler rest_dispatcher within the phase Dispatch
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler soap_message_body_based_dispatcher within the phase Dispatch
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler soap_action_based_dispatcher within the phase Dispatch
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler dispatch_post_conditions_evaluator within the phase
>>     
> PostDispatch
>   
>> [Thu Sep 04 18:06:09 2008] [debug] ..\..\src\core\engine\phase.c(210)
>>     
> Invoke
>   
>> the handler context_handler within the phase PostDispatch
>> [Thu Sep 04 18:06:09 2008] [warning]
..\..\src\core\description\op.c(1149)
>> Message id not found for message context while registering operation
>>     
> context
>   
>> for operation getVC
>> [Thu Sep 04 18:06:10 2008] [info]  Request served successfully 
>>
>>
>> -----Original Message-----
>> From: Manjula Peiris [mailto:manjula@wso2.com] 
>> Sent: Thursday, September 04, 2008 11:28 PM
>> To: Apache AXIS C User List
>> Subject: Re: problem with upload to REST-enabled service
>>
>> Can you capture the message which is sent to the server ?
>>
>> On Thu, 2008-09-04 at 17:19 -0400, Arnie Chien wrote:
>>   
>>     
>>> Hi,
>>> I'm trying to upload an image to an axis2c server.  The image is handled
>>>     
>>>       
>> by
>>   
>>     
>>> a service which is REST-enabled (modeled after the echo sample).  The
>>> services.xml is
>>>
>>> <service name="KIPSvc">
>>>     <parameter name="ServiceClass" locked="xsd:false">KIPSvc</parameter>
>>>     <description/>
>>>     <operation name="getVC">
>>>             <parameter name="RESTMethod">POST</parameter>
>>>             <parameter name="RESTLocation">getVC</parameter>
>>>     </operation>
>>> </service> 
>>>
>>> The client is written in Java, but does not use the axis2 API; it just
>>> constructs a POST request using the java HttpConnection class.  (My
>>> understanding of REST is that this should be okay.)  It sets
content-type
>>>     
>>>       
>> to
>>   
>>     
>>> text/xml, and sends the image data as a sequence of bytes.
>>>
>>> Processing gets into the service dll, such that the getVC operation
>>>
>>> axiom_node_t *
>>> axis2_KIPSvc_getVC(
>>>     const axutil_env_t * env,
>>>     axiom_node_t * node)
>>>
>>> is called.  But the "node" argument is null.  Could someone could tell
me
>>> what the problem might be?  Many thanks in advance- 
>>>
>>>
>>>
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>>>
>>>     
>>>       
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>   
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>   


-- 
Samisa Abeysinghe 
Director, Engineering; WSO2 Inc.

http://www.wso2.com/ - "The Open Source SOA Company"


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