def call(self, http_request):
try:
# This try block handle Exception generated before the request is accepted. Once the request is accepted
# a valid wps_reponse must exist. To report error use the wps_response using
# wps_response._update_status(WPS_STATUS.FAILED, ...).
#
# We need this behaviour to handle the status file correctly, once the request is accepted, a
# status file may be created and failure must be reported in this file instead of a raw ows:ExceptionReport
#
# Exeception from CapabilityResponse and DescribeResponse are always catched by this try ... except close
# because they never have status.
request_uuid = uuid.uuid1()
environ_cfg = http_request.environ.get('PYWPS_CFG')
if 'PYWPS_CFG' not in os.environ and environ_cfg:
LOGGER.debug('Setting PYWPS_CFG to %s', environ_cfg)
os.environ['PYWPS_CFG'] = environ_cfg
wps_request = WPSRequest(http_request)
LOGGER.info('Request: %s', wps_request.operation)
if wps_request.operation in [
'getcapabilities', 'describeprocess', 'execute'
]:
log_request(request_uuid, wps_request)
try:
response = None
if wps_request.operation == 'getcapabilities':
response = self.get_capabilities(
wps_request, request_uuid)
response._update_status(WPS_STATUS.SUCCEEDED, u'', 100)
elif wps_request.operation == 'describeprocess':
response = self.describe(wps_request, request_uuid,
wps_request.identifiers)
response._update_status(WPS_STATUS.SUCCEEDED, u'', 100)
elif wps_request.operation == 'execute':
response = self.execute(wps_request.identifier,
wps_request, request_uuid)
return response
except Exception as e:
# This ensure that logged request get terminated in case of exception while the request is not
# accepted
store_status(request_uuid, WPS_STATUS.FAILED,
u'Request rejected due to exception', 100)
raise e
else:
raise RuntimeError("Unknown operation %r" %
wps_request.operation)
except NoApplicableCode as e:
return e
except HTTPException as e:
return NoApplicableCode(e.description, code=e.code)
except Exception as e:
msg = "No applicable error code, please check error log."
return NoApplicableCode(msg, code=500)
def call(self, http_request):
try:
# This try block handle Exception generated before the request is accepted. Once the request is accepted
# a valid wps_reponse must exist. To report error use the wps_response using
# wps_response._update_status(WPS_STATUS.FAILED, ...).
#
# We need this behaviour to handle the status file correctly, once the request is accepted, a
# status file may be created and failure must be reported in this file instead of a raw ows:ExceptionReport
#
# Exeception from CapabilityResponse and DescribeResponse are always catched by this try ... except close
# because they never have status.
request_uuid = uuid.uuid1()
environ_cfg = http_request.environ.get('PYWPS_CFG')
if 'PYWPS_CFG' not in os.environ and environ_cfg:
LOGGER.debug('Setting PYWPS_CFG to %s', environ_cfg)
os.environ['PYWPS_CFG'] = environ_cfg
wps_request = WPSRequest(http_request)
LOGGER.info('Request: %s', wps_request.operation)
if wps_request.operation in ['getcapabilities',
'describeprocess',
'execute']:
log_request(request_uuid, wps_request)
try:
response = None
if wps_request.operation == 'getcapabilities':
response = self.get_capabilities(wps_request, request_uuid)
response._update_status(WPS_STATUS.SUCCEEDED, u'', 100)
elif wps_request.operation == 'describeprocess':
response = self.describe(wps_request, request_uuid, wps_request.identifiers)
response._update_status(WPS_STATUS.SUCCEEDED, u'', 100)
elif wps_request.operation == 'execute':
response = self.execute(
wps_request.identifier,
wps_request,
request_uuid
)
return response
except Exception as e:
# This ensure that logged request get terminated in case of exception while the request is not
# accepted
store_status(request_uuid, WPS_STATUS.FAILED, u'Request rejected due to exception', 100)
raise e
else:
raise RuntimeError("Unknown operation %r"
% wps_request.operation)
except NoApplicableCode as e:
return e
except HTTPException as e:
return NoApplicableCode(e.description, code=e.code)
except Exception:
msg = "No applicable error code, please check error log."
return NoApplicableCode(msg, code=500)
def update_status(self):
self.job.wps_response.message = 'PyWPS Process {} finished'.format(
self.job.process.title)
self.job.wps_response.percentage = 100
self.job.wps_response.status = WPS_STATUS.SUCCEEDED
store_status(self.job.wps_response.uuid, self.job.wps_response.status,
self.job.wps_response.message,
self.job.wps_response.percentage)
def _update_status(self, status, message, status_percentage):
"""
Update status report of currently running process instance
:param str message: Message you need to share with the client
:param int status_percentage: Percent done (number betwen <0-100>)
:param pywps.response.status.WPS_STATUS status: process status - user should usually
ommit this parameter
"""
self.message = message
self.status = status
self.status_percentage = status_percentage
store_status(self.uuid, self.status, self.message, self.status_percentage)
def _update_status(self, status, message, status_percentage):
"""
Update status report of currently running process instance
:param str message: Message you need to share with the client
:param int status_percentage: Percent done (number betwen <0-100>)
:param pywps.response.status.WPS_STATUS status: process status - user should usually
ommit this parameter
"""
self.message = message
self.status = status
self.status_percentage = status_percentage
store_status(self.uuid, self.status, self.message,
self.status_percentage)
def _parse_outputs(self):
for output in self.execution.processOutputs:
# TODO what if len(data) > 1 ??
if output.data:
self.job.wps_response.outputs[
output.identifier].data = output.data[0]
if output.reference:
rp = output.reference[output.reference.index('outputs/'):]
self.job.wps_response.outputs[output.identifier].file = rp
self.job.wps_response.update_status_succeeded(
'PyWPS Process {} finished'.format(self.job.process.title))
store_status(self.job.wps_response.uuid, self.job.wps_response.status,
self.job.wps_response.message)
