def execute(self, wps_request, uuid):
self._set_uuid(uuid)
async = False
wps_response = WPSResponse(self, wps_request, self.uuid)
LOGGER.debug(
'Check if status storage and updating are supported by this process'
)
if wps_request.store_execute == 'true':
if self.store_supported != 'true':
raise StorageNotSupported(
'Process does not support the storing of the execute response'
)
if wps_request.status == 'true':
if self.status_supported != 'true':
raise OperationNotSupported(
'Process does not support the updating of status')
wps_response.status = WPSResponse.STORE_AND_UPDATE_STATUS
async = True
else:
wps_response.status = WPSResponse.STORE_STATUS
LOGGER.debug(
'Check if updating of status is not required then no need to spawn a process'
)
wps_response = self._execute_process(async, wps_request, wps_response)
return wps_response
def execute(self, wps_request, uuid):
self._set_uuid(uuid)
async = False
wps_response = WPSResponse(self, wps_request, self.uuid)
LOGGER.debug('Check if status storage and updating are supported by this process')
if wps_request.store_execute == 'true':
if self.store_supported != 'true':
raise StorageNotSupported('Process does not support the storing of the execute response')
if wps_request.status == 'true':
if self.status_supported != 'true':
raise OperationNotSupported('Process does not support the updating of status')
wps_response.status = wps_response_status.STORE_AND_UPDATE_STATUS
async = True
else:
wps_response.status = wps_response_status.STORE_STATUS
LOGGER.debug('Check if updating of status is not required then no need to spawn a process')
wps_response = self._execute_process(async, wps_request, wps_response)
return wps_response
def _run_process(self, wps_request, wps_response):
#added because of http://stackoverflow.com/questions/30241911/psycopg2-error-databaseerror-error-with-no-message-from-the-libpq
#db.get_engine(application).dispose()
try:
self._set_grass()
wps_response = self.handler(wps_request, wps_response)
# if status not yet set to 100% then do it after execution was successful
if (not wps_response.status_percentage) or (wps_response.status_percentage != 100):
LOGGER.debug('Updating process status to 100% if everything went correctly')
wps_response.update_status('PyWPS Process finished', 100, wps_response_status.DONE_STATUS)
except Exception as e:
traceback.print_exc()
LOGGER.debug('Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name, exc_tb.tb_lineno, e)
LOGGER.error(msg)
if not wps_response:
raise NoApplicableCode('Response is empty. Make sure the _handler method is returning a valid object.')
else:
wps_response.update_status(msg, -1)
# tr
stored_requests = dblog.get_first_stored()
if stored_requests:
(uuid, request_json) = stored_requests
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = wps_response_status.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
return wps_response
def _run_process(self, wps_request, wps_response):
try:
self._set_grass()
wps_response.update_status('PyWPS Process started', 0)
wps_response = self.handler(wps_request, wps_response)
if (not wps_response.status_percentage) or (wps_response.status_percentage != 100):
LOGGER.debug('Updating process status to 100% if everything went correctly')
wps_response.update_status('PyWPS Process finished', 100,
STATUS.DONE_STATUS, clean=self.async)
except Exception as e:
traceback.print_exc()
LOGGER.debug('Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name, exc_tb.tb_lineno, e)
LOGGER.error(msg)
if not wps_response:
raise NoApplicableCode('Response is empty. Make sure the _handler method is returning a valid object.')
else:
wps_response.update_status(msg, -1)
# tr
stored_requests = dblog.get_first_stored()
if len(stored_requests) > 0:
(uuid, request_json) = stored_requests[0]
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = STATUS.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
return wps_response
def _run_process(self, wps_request, wps_response):
try:
self._set_grass()
wps_response.update_status('PyWPS Process started', 0)
wps_response = self.handler(wps_request, wps_response)
# if (not wps_response.status_percentage) or (wps_response.status_percentage != 100):
LOGGER.debug('Updating process status to 100% if everything went correctly')
wps_response.update_status('PyWPS Process {} finished'.format(self.title),
100, STATUS.DONE_STATUS, clean=self.async)
except Exception as e:
traceback.print_exc()
LOGGER.debug('Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name, exc_tb.tb_lineno, e)
LOGGER.error(msg)
if not wps_response:
raise NoApplicableCode('Response is empty. Make sure the _handler method is returning a valid object.')
else:
wps_response.update_status(msg, -1)
# tr
stored_request = dblog.get_first_stored()
if stored_request:
(uuid, request_json) = (stored_request.uuid, stored_request.request)
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = STATUS.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
return wps_response
def _run_process(self, wps_request, wps_response):
try:
wps_response = self.handler(wps_request, wps_response)
# if status not yet set to 100% then do it after execution was successful
if wps_response.status_percentage != 100:
LOGGER.debug(
'Updating process status to 100% if everything went correctly'
)
wps_response.update_status('PyWPS Process finished', 100)
except Exception as e:
traceback.print_exc()
LOGGER.debug(
'Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name,
exc_tb.tb_lineno, e)
LOGGER.error(msg)
wps_response.update_status(msg, -1)
# tr
stored_requests = dblog.get_first_stored()
if len(stored_requests) > 0:
(uuid, request_json) = stored_requests[0]
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = WPSResponse.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
return wps_response
def execute(self, wps_request):
import multiprocessing
self.uuid = str(uuid4())
async = False
wps_response = WPSResponse(self, wps_request)
# check if status storage and updating are supported by this process
if wps_request.store_execute == 'true':
if self.store_supported != 'true':
raise StorageNotSupported(
'Process does not support the storing of the execute response'
)
file_path = config.get_config_value('server', 'outputPath')
file_url = '%s:%s%s' % (
config.get_config_value('wps', 'serveraddress'),
config.get_config_value('wps', 'serverport'),
config.get_config_value('server', 'outputUrl'))
self.status_location = os.path.join(file_path, self.uuid) + '.xml'
self.status_url = os.path.join(file_url, self.uuid) + '.xml'
if wps_request.status == 'true':
if self.status_supported != 'true':
raise OperationNotSupported(
'Process does not support the updating of status')
wps_response.status = WPSResponse.STORE_AND_UPDATE_STATUS
async = True
else:
wps_response.status = WPSResponse.STORE_STATUS
# check if updating of status is not required then no need to spawn a process
if async:
process = multiprocessing.Process(target=self._run_process,
args=(wps_request, wps_response))
process.start()
else:
wps_response = self._run_process(wps_request, wps_response)
return wps_response
def execute(self, wps_request):
import multiprocessing
self.uuid = str(uuid4())
async = False
wps_response = WPSResponse(self, wps_request)
# check if status storage and updating are supported by this process
if wps_request.store_execute == 'true':
if self.store_supported != 'true':
raise StorageNotSupported('Process does not support the storing of the execute response')
file_path = config.get_config_value('server', 'outputPath')
file_url = '%s:%s%s' % (
config.get_config_value('wps', 'serveraddress'),
config.get_config_value('wps', 'serverport'),
config.get_config_value('server', 'outputUrl')
)
self.status_location = os.path.join(file_path, self.uuid) + '.xml'
self.status_url = os.path.join(file_url, self.uuid) + '.xml'
if wps_request.status == 'true':
if self.status_supported != 'true':
raise OperationNotSupported('Process does not support the updating of status')
wps_response.status = WPSResponse.STORE_AND_UPDATE_STATUS
async = True
else:
wps_response.status = WPSResponse.STORE_STATUS
# check if updating of status is not required then no need to spawn a process
if async:
process = multiprocessing.Process(target=self._run_process, args=(wps_request, wps_response))
process.start()
else:
wps_response = self._run_process(wps_request, wps_response)
return wps_response
def _run_process(self, wps_request, wps_response):
#added because of http://stackoverflow.com/questions/30241911/psycopg2-error-databaseerror-error-with-no-message-from-the-libpq
#db.get_engine(application).dispose()
try:
self._set_grass()
wps_response = self.handler(wps_request, wps_response)
# if status not yet set to 100% then do it after execution was successful
if (not wps_response.status_percentage) or (
wps_response.status_percentage != 100):
LOGGER.debug(
'Updating process status to 100% if everything went correctly'
)
wps_response.update_status('PyWPS Process finished', 100,
wps_response_status.DONE_STATUS)
except Exception as e:
traceback.print_exc()
LOGGER.debug(
'Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name,
exc_tb.tb_lineno, e)
LOGGER.error(msg)
if not wps_response:
raise NoApplicableCode(
'Response is empty. Make sure the _handler method is returning a valid object.'
)
else:
wps_response.update_status(msg, -1)
# tr
stored_requests = dblog.get_first_stored()
if stored_requests:
(uuid, request_json) = stored_requests
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = wps_response_status.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
return wps_response
def _run_process(self, wps_request, wps_response):
try:
self._set_grass()
# if required set HOME to the current working directory.
if config.get_config_value('server', 'sethomedir') is True:
os.environ['HOME'] = self.workdir
LOGGER.info('Setting HOME to current working directory: %s', os.environ['HOME'])
LOGGER.debug('ProcessID=%s, HOME=%s', self.uuid, os.environ.get('HOME'))
wps_response.update_status('PyWPS Process started', 0)
wps_response = self.handler(wps_request, wps_response)
# if (not wps_response.status_percentage) or (wps_response.status_percentage != 100):
LOGGER.debug('Updating process status to 100% if everything went correctly')
wps_response.update_status('PyWPS Process {} finished'.format(self.title),
100, STATUS.DONE_STATUS, clean=self.async)
except Exception as e:
traceback.print_exc()
LOGGER.debug('Retrieving file and line number where exception occurred')
exc_type, exc_obj, exc_tb = sys.exc_info()
found = False
while not found:
# search for the _handler method
m_name = exc_tb.tb_frame.f_code.co_name
if m_name == '_handler':
found = True
else:
if exc_tb.tb_next is not None:
exc_tb = exc_tb.tb_next
else:
# if not found then take the first
exc_tb = sys.exc_info()[2]
break
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
method_name = exc_tb.tb_frame.f_code.co_name
# update the process status to display process failed
msg = 'Process error: %s.%s Line %i %s' % (fname, method_name, exc_tb.tb_lineno, e)
LOGGER.error(msg)
if not wps_response:
raise NoApplicableCode('Response is empty. Make sure the _handler method is returning a valid object.')
else:
wps_response.update_status(msg, -1)
# tr
stored_request = dblog.get_first_stored()
if stored_request:
try:
(uuid, request_json) = (stored_request.uuid, stored_request.request)
if not PY2:
request_json = request_json.decode('utf-8')
new_wps_request = WPSRequest()
new_wps_request.json = json.loads(request_json)
new_wps_response = WPSResponse(self, new_wps_request, uuid)
new_wps_response.status = STATUS.STORE_AND_UPDATE_STATUS
self._set_uuid(uuid)
self._run_async(new_wps_request, new_wps_response)
dblog.remove_stored(uuid)
except Exception as e:
LOGGER.error("Could not run stored process. %s", e)
return wps_response
