[Pywps-dev] Problem calling a WPS service from another WPS service
Lorenzo Bottaccioli
lorenzo.bottaccioli at gmail.com
Sat Jun 18 15:54:48 PDT 2016
Hi Jachym,
Yes is using flask, I just ad process to the demo.py.
Best, Lorenzo
Il 18 giu 2016 11:40 PM, "Jachym Cepicky" <jachym.cepicky at gmail.com> ha
scritto:
> Lorenzo,
>
> are you using flask server or what WebServer are you using?
>
> J
>
> pá 10. 6. 2016 v 16:26 odesílatel Lorenzo Bottaccioli <
> lorenzo.bottaccioli at gmail.com> napsal:
>
>> Hi list,
>>
>> I'm having a problem with a service when I call another service inside
>> the process.
>>
>> def _handler(self, request, response):
>>
>> df = self.get_real_sky(geodf,start,end,model)
>>
>> def get_real_sky(self,geodf,start,end,model):
>> #print 'eccolo dentro'
>> import requests
>> url = "http://130.192.5.114:8080/wps"
>>
>> payload = "<wps:Execute service=\"WPS\" version=\"1.0.0\"
>> xmlns:wps=\"http://www.opengis.net/wps/1.0.0\" xmlns:ows=\"
>> http://www.opengis.net/ows/1.1\" xmlns:xlink=\"
>> http://www.w3.org/1999/xlink\" xmlns:xsi=\"
>> http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"
>> http://www.opengis.net/wps/1.0.0\n../wpsExecute_request.xsd\">\n
>> <ows:Identifier>real_sky</ows:Identifier>\n <wps:DataInputs>\n
>> <wps:Input>\n <ows:Identifier>layer_in</ows:Identifier>\n
>> <wps:Data>\n <wps:ComplexData>"+geodf.to_json()+"</wps:ComplexData>\n
>> </wps:Data>\n </wps:Input>\n <wps:Input>\n
>> <ows:Identifier>start</ows:Identifier>\n <wps:Data>\n
>> <wps:LiteralData dataType=\"xs:string\">"+start+"</wps:LiteralData>\n
>> </wps:Data>\n </wps:Input>\n <wps:Input>\n
>> <ows:Identifier>end</ows:Identifier>\n <wps:Data>\n
>> <wps:LiteralData dataType=\"xs:string\">"+end+"</wps:LiteralData>\n
>> </wps:Data>\n </wps:Input>\n <wps:Input>\n
>> <ows:Identifier>model</ows:Identifier>\n <wps:Data>\n
>> <wps:LiteralData dataType=\"xs:string\">"+model+"</wps:LiteralData>\n
>> </wps:Data>\n </wps:Input>\n </wps:DataInputs>\n
>> <wps:ResponseForm>\n <wps:RawDataOutput>\n
>> <ows:Identifier>layer_out</ows:Identifier>\n </wps:RawDataOutput>\n
>> </wps:ResponseForm>\n</wps:Execute>"
>> headers = {
>> 'content-type': "application/xml",
>> 'cache-control': "no-cache",
>> 'postman-token': "78829681-df08-3317-2e0e-90a31ea4f2a6"
>> }
>>
>> response = requests.request("POST", url, data=payload,
>> headers=headers)
>>
>> return response.text
>>
>>
>> The process inside def get_real_sky works if I call it by it self, but if
>> I call inside another process dosent work, it simply blocks and do not go
>> forward. I have tried to run only the service real_sky in another port not
>> in 8080 like the one who calls it but in 8082. In this way it works. I dont
>> understand if the problem is Flask or the problem is PyWPS.
>>
>> If I press crtl+c to stop the process I get this:
>>
>> Exception happened during processing of request from ('130.192.5.114',
>> 49246)
>> Traceback (most recent call last):
>> File "/usr/lib/python2.7/SocketServer.py", line 295, in
>> _handle_request_noblock
>> self.process_request(request, client_address)
>> File "/usr/lib/python2.7/SocketServer.py", line 321, in process_request
>> self.finish_request(request, client_address)
>> File "/usr/lib/python2.7/SocketServer.py", line 334, in finish_request
>> self.RequestHandlerClass(request, client_address, self)
>> File "/usr/lib/python2.7/SocketServer.py", line 649, in __init__
>> self.handle()
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/serving.py",
>> line 216, in handle
>> rv = BaseHTTPRequestHandler.handle(self)
>> File "/usr/lib/python2.7/BaseHTTPServer.py", line 340, in handle
>> self.handle_one_request()
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/serving.py",
>> line 251, in handle_one_request
>> return self.run_wsgi()
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/serving.py",
>> line 193, in run_wsgi
>> execute(self.server.app)
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/serving.py",
>> line 181, in execute
>> application_iter = app(environ, start_response)
>> File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1836,
>> in __call__
>> return self.wsgi_app(environ, start_response)
>> File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1817,
>> in wsgi_app
>> response = self.full_dispatch_request()
>> File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1478,
>> in full_dispatch_request
>> response = self.make_response(rv)
>> File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1577,
>> in make_response
>> rv = self.response_class.force_type(rv, request.environ)
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/wrappers.py",
>> line 847, in force_type
>> response = BaseResponse(*_run_wsgi_app(response, environ))
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/wrappers.py",
>> line 57, in _run_wsgi_app
>> return _run_wsgi_app(*args)
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/test.py",
>> line 871, in run_wsgi_app
>> app_rv = app(environ, start_response)
>> File
>> "/usr/local/lib/python2.7/dist-packages/Werkzeug-0.11.4-py2.7.egg/werkzeug/wrappers.py",
>> line 291, in application
>> return f(*args[:-2] + (request,))(*args[-2:])
>> File
>> "/usr/local/lib/python2.7/dist-packages/pywps-4.0-py2.7.egg/pywps/app/Service.py",
>> line 529, in __call__
>> request_uuid
>> File
>> "/usr/local/lib/python2.7/dist-packages/pywps-4.0-py2.7.egg/pywps/app/Service.py",
>> line 296, in execute
>> response = self._parse_and_execute(process, wps_request, uuid)
>> File
>> "/usr/local/lib/python2.7/dist-packages/pywps-4.0-py2.7.egg/pywps/app/Service.py",
>> line 358, in _parse_and_execute
>> wps_response = process.execute(wps_request, uuid)
>> File
>> "/usr/local/lib/python2.7/dist-packages/pywps-4.0-py2.7.egg/pywps/app/Process.py",
>> line 145, in execute
>> wps_response = self._run_process(wps_request, wps_response)
>> File
>> "/usr/local/lib/python2.7/dist-packages/pywps-4.0-py2.7.egg/pywps/app/Process.py",
>> line 151, in _run_process
>> wps_response = self.handler(wps_request, wps_response)
>> File
>> "/home/lorenzo/tools/pywps-4/pywps-4-demo/processes/solar/PV_NOCT.py", line
>> 45, in _handler
>> df = self.get_real_sky(geodf,start,end,model)
>> File
>> "/home/lorenzo/tools/pywps-4/pywps-4-demo/processes/solar/PV_NOCT.py", line
>> 101, in get_real_sky
>> response = requests.request("POST", url, data=payload,
>> headers=headers)
>> File "/usr/lib/python2.7/dist-packages/requests/api.py", line 44, in
>> request
>> return session.request(method=method, url=url, **kwargs)
>> File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 455,
>> in request
>> resp = self.send(prep, **send_kwargs)
>> File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 558,
>> in send
>> r = adapter.send(request, **kwargs)
>> File "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 330,
>> in send
>> timeout=timeout
>> File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line
>> 562, in urlopen
>> body=body, headers=headers)
>> File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line
>> 414, in _make_request
>> httplib_response = conn.getresponse(buffering=True)
>> File "/usr/lib/python2.7/httplib.py", line 1051, in getresponse
>> response.begin()
>> File "/usr/lib/python2.7/httplib.py", line 415, in begin
>> version, status, reason = self._read_status()
>> File "/usr/lib/python2.7/httplib.py", line 371, in _read_status
>> line = self.fp.readline(_MAXLINE + 1)
>> File "/usr/lib/python2.7/socket.py", line 476, in readline
>> data = self._sock.recv(self._rbufsize)
>> KeyboardInterrupt
>> ----------------------------------------
>> 130.192.5.114 - - [10/Jun/2016 16:25:45] "POST /wps HTTP/1.1" 200 -
>> INFO:werkzeug:130.192.5.114 - - [10/Jun/2016 16:25:45] "POST /wps
>> HTTP/1.1" 200 -
>> ----------------------------------------
>> Exception happened during processing of request from ('130.192.5.114',
>> 49248)
>> Traceback (most recent call last):
>> File "/usr/lib/python2.7/SocketServer.py", line 295, in
>> _handle_request_noblock
>> self.process_request(request, client_address)
>> File "/usr/lib/python2.7/SocketServer.py", line 321, in process_request
>> self.finish_request(request, client_address)
>> File "/usr/lib/python2.7/SocketServer.py", line 334, in finish_request
>> self.RequestHandlerClass(request, client_address, self)
>> File "/usr/lib/python2.7/SocketServer.py", line 651, in __init__
>> self.finish()
>> File "/usr/lib/python2.7/SocketServer.py", line 710, in finish
>> self.wfile.close()
>> File "/usr/lib/python2.7/socket.py", line 279, in close
>> self.flush()
>> File "/usr/lib/python2.7/socket.py", line 303, in flush
>> self._sock.sendall(view[write_offset:write_offset+buffer_size])
>> error: [Errno 32] Broken pipe
>> ----------------------------------------
>>
>>
>> Any suggestion?
>>
>> Best,
>>
>> Lorenzo
>>
>>
>>
>>
>> _______________________________________________
>> pywps-dev mailing list
>> pywps-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/pywps-dev
>
>
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