[Pywps-dev] Sending GML as data input

[Marcel Wolters - Periplus Group]

Hi list,

I set up PyWPS-4 and the pywps-demo on an Ubuntu 16.04 server.
But I can't figure out how to send a GML as input.

When I send the url to the GML file as parameter in the WPS request when calling the feature_count demo process (or the centroids demo process), like this
http://localhost:5001/wps?service=wps&version=1.0.0&request=execute&identifier=feature_count&datainputs=layer=localhost/wps/point.gml

The server gives this error message:

<type 'collections.deque'>

Traceback (most recent call last):

  File "/home/marcel/src/pywps/pywps/app/Process.py", line 233, in _run_process

    wps_response = self.handler(wps_request, wps_response)

  File "/home/marcel/pywps-demo/processes/feature_count.py", line 27, in _handler

    doc = lxml.etree.parse(request.inputs['layer'].file)

AttributeError: 'collections.deque' object has no attribute 'file'

ERROR:pywps.app.Process:Process error: feature_count.py._handler Line 27 'collections.deque' object has no attribute 'file'

ERROR:pywps.exceptions:Exception: code: 400, locator: Service error: near "collections": syntax error, description:

Traceback (most recent call last):

  File "/home/marcel/src/pywps/pywps/app/Service.py", line 365, in _parse_and_execute

    wps_response = process.execute(wps_request, uuid)

  File "/home/marcel/src/pywps/pywps/app/Process.py", line 159, in execute

    wps_response = self._execute_process(async, wps_request, wps_response)

  File "/home/marcel/src/pywps/pywps/app/Process.py", line 203, in _execute_process

    wps_response = self._run_process(wps_request, wps_response)

  File "/home/marcel/src/pywps/pywps/app/Process.py", line 266, in _run_process

    wps_response.update_status(msg, -1)

  File "/home/marcel/src/pywps/pywps/app/WPSResponse.py", line 56, in update_status

    update_response(self.uuid, self)

  File "/home/marcel/src/pywps/pywps/dblog.py", line 113, in update_response

    cur.execute(update)

OperationalError: near "collections": syntax error


When I try to send the GML using the HTTP POST method, the server gives this message:

ERROR:pywps.exceptions:Exception: code: 400, locator: Start tag expected, '<' not found, line 1, column 1, description:

Traceback (most recent call last):

  File "/home/marcel/src/pywps/pywps/app/WPSRequest.py", line 80, in _post_request

    doc = lxml.etree.fromstring(self.http_request.get_data())

  File "src/lxml/lxml.etree.pyx", line 3213, in lxml.etree.fromstring (src/lxml/lxml.etree.c:77697)

  File "src/lxml/parser.pxi", line 1819, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:116494)

  File "src/lxml/parser.pxi", line 1707, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:115144)

  File "src/lxml/parser.pxi", line 1079, in lxml.etree._BaseParser._parseDoc (src/lxml/lxml.etree.c:109543)

  File "src/lxml/parser.pxi", line 573, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:103404)

  File "src/lxml/parser.pxi", line 683, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:105058)

  File "src/lxml/parser.pxi", line 613, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:103967)

XMLSyntaxError: Start tag expected, '<' not found, line 1, column 1

So, what am I doing wrong?



With kind regards,
Marcel Wolters

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