def hello_world():
"""
Heartbeat
:return:
"""
msg = {'message': "Hello Copernicus."}
schema = MessageSchema()
return misc.create_response(jsonify(schema.dump(msg).data))
def list():
# return misc.create_response(jsonify({'files':list_files()}))
result = list_files()
#transform
msg = {'message': "All currently available files.", 'data': result}
schema = MessageSchema()
result = schema.dump(msg)
return misc.create_response(jsonify(result.data))
def retrieve_copernicus_file():
"""
Retrieve the grib file for a given date.
Example query: /retrieve?timestamp=2017-09-13T15:21:20%2B00:00
# :return: filename """
try:
date_arg = validate_request_parameters()
except ValueError, e:
return misc.create_response(jsonify(message=e.message), 400)
def parse_file_():
"""
Retrieves the parsed information by specifying the file, the timestamp and latitude + longitude. Don't forget
to encode the plus sign '+' = %2B!
Example: GET /parse/data/ecmwf/an-2017-09-14.grib?timestamp=2017-09-16T15:21:20%2B00:00&lat=48.398400&lon=9.591550
:param fileName: path to a retrieved ecmwf grib file.
:return: OK including json content or empty not found
"""
try:
[point, date] = validate_request_parameters()
except ValueError, e:
return misc.create_response(jsonify(message=e.message), 400)
return misc.create_response(jsonify(message=e.message), 400)
file_name = misc.build_file_name(date)
path_to_file = file_directory + os.sep + file_name
files = file_status.get_available_files()
if file_name not in files or not os.path.isfile(path_to_file):
msg = {
'message':
'Given filename={} could not be found in the available files are attached.'
.format(file_name, files),
'data': {
'files': files
}
}
return misc.create_response(jsonify(transform_message(msg).data), 404)
result = cache.cache.get(request.url)
# check cache
if not result:
result = parse_action.parse(path_to_file, point, date)
return Response(json.dumps(transform(result),
default=CopernicusData.json_serial,
indent=2),
mimetype="text/json",
status=200)
def transform(result):
# refer to: http://marshmallow.readthedocs.io/en/latest/quickstart.html#filtering-output to filter the output
# Only output the type and value!
date_arg = validate_request_parameters()
except ValueError, e:
return misc.create_response(jsonify(message=e.message), 400)
response = cache.cache.get(request.url.split("T")[0])
# check cache hit
if response:
# transform
msg = {
'message': "Cache hit.",
'data': {
'fileName': response.split("/")[-1]
}
}
return misc.create_response(jsonify(transform(msg).data))
# no cache hit
latestRetrievalDate = datetime.utcnow() - timedelta(
days=copernicus_enums.DataSets.CAMS.value['delayDays'])
if ((date_arg - latestRetrievalDate).days <= 0):
result = retrieve_action.retrieve_file(date_arg)
return misc.create_response(jsonify(transform(result).data))
else:
msg = {
'message': "Cannot retrieve files for this date.",
'data': {
'latest_retrieval_date':
latestRetrievalDate.date().isoformat()
}
}