[Pywps-dev] Problem calling a WPS service from another WPS service
Jachym Cepicky
jachym.cepicky at gmail.com
Sat Jun 18 14:40:14 PDT 2016
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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