def check_status(task_id, start_time, query_id):
from app.celery_tasks.run_ml_task import ml_task_runner
task = ml_task_runner.AsyncResult(task_id)
if task.state == 'PENDING':
# job did not start yet
response = {
'state': task.state,
'current': 0,
'total': 100,
'status': 'Pending...'
}
elif task.state != 'FAILURE':
response = {
'state': task.state,
'current': task.info.get('current', 0),
'total': task.info.get('total', 100),
'status': task.info.get('status', '')
}
if 'result' in task.info:
response['result'] = task.info['result']
else:
# something went wrong in the background job
response = {
'state': task.state,
'current': 100,
'total': 100,
'status': str(task.info), # this is the exception raised
}
logSuccess(query_id, start_time)
return jsonify(response), 200
def storage_insert(parameters, start_time, query_id):
if 'file' not in request.files or not request.files['file'].filename:
code = 400
logFail(query_id, start_time, code)
abort(
code,
f"Bad request body. Expected {parameters.get('extension')} file "
f"with key 'file' and correct filename in request body.")
filename = request.files['file'].filename \
if not request.headers.get('filename') \
else request.headers.get('filename')
if not isinstance(filename, str) or len(filename) > 99:
code = 400
logFail(query_id, start_time, code)
abort(code, "Too long or bad filename.")
abs_path_filename = os.path.join(parameters.get('folder'), filename)
if os.path.isfile(abs_path_filename):
os.remove(abs_path_filename)
request.files['file'].save(abs_path_filename)
logSuccess(query_id, start_time)
return '', 204
def result_list(start_time, query_id):
try:
# Соединение таблиц и получение информации
personinf = db.session.query(Results)\
.filter_by(personEmail=request.headers.get('email')) \
.order_by(Results.datetime) \
.all()
except HTTPException as ex:
logFail(query_id, start_time, ex.code)
raise
logSuccess(query_id, start_time)
if not personinf:
return jsonify("Empty set"), 200
return jsonify([{
'model': result.model,
'preprocessor': result.preprocessor,
'resource': result.resource,
'datetime': result.datetime,
'accuracy': result.accuracy,
'precision': result.precision,
'recall': result.recall,
'roc_auc': result.roc_auc,
'log_loss': result.log_loss
} for result in personinf]), 200
def run_prediction(start_time, query_id):
request_data = request.get_json()
if not request_data.get('model'):
code = 400
logFail(query_id, start_time, code)
abort(code,
f"Specify {model_parameters.get('entity')} in the request.")
if not request_data.get('preprocessor'):
code = 400
logFail(query_id, start_time, code)
abort(code, f"Specify {prep_parameters.get('entity')} in the request.")
if not request_data.get('resource'):
code = 400
logFail(query_id, start_time, code)
abort(code, f"Specify {res_parameters.get('entity')} in the request.")
model_path = os.path.join(model_parameters.get('folder'),
request_data.get('model'))
if not os.path.isfile(model_path):
code = 404
logFail(query_id, start_time, code)
abort(code, f"No {model_parameters.get('entity')} with this filename.")
prep_path = os.path.join(prep_parameters.get('folder'),
request_data.get('preprocessor'))
if not os.path.isfile(prep_path):
code = 404
logFail(query_id, start_time, code)
abort(code, f"No {prep_parameters.get('entity')} with this filename.")
res_path = os.path.join(res_parameters.get('folder'),
request_data.get('resource'))
if not os.path.isfile(res_path):
code = 404
logFail(query_id, start_time, code)
abort(code, f"No {res_parameters.get('entity')} with this filename.")
parameters = {
'model': model_path,
'preprocessor': prep_path,
'resource': res_path,
'personEmail': request.headers.get('email'),
'dateFrom': request_data.get('dateFrom'),
'timeFrom': request_data.get('timeFrom'),
'dateTo': request_data.get('dateTo'),
'timeTo': request_data.get('timeTo'),
'ticker': request_data.get('ticker')
}
# в Celery
task = ml_task_runner.apply_async(args=[parameters])
# --------------------------
logSuccess(query_id, start_time)
return jsonify(task_id=task.id), 202
def upload_file(start_time, query_id):
if 'file' not in request.files or not request.files['file'].filename:
code = 400
logFail(query_id, start_time, code)
abort(
code,
"Bad request body. Expected file with key 'file' and correct filename in request body."
)
filename = request.files['file'].filename \
if not request.headers.get('filename') \
else request.headers.get('filename')
if not isinstance(filename, str) or len(filename) > 99:
code = 400
logFail(query_id, start_time, code)
abort(code, "Too long or bad filename.")
filepath = f"/tmp/{uuid.uuid4()}"
request.files['file'].save(filepath)
post_params = {
'filename': filename,
'filepath': filepath,
'personEmail': request.headers.get('email')
}
task = post_task.apply_async(args=[post_params])
logSuccess(query_id, start_time)
return jsonify(task_id=task.id), 202
def storage_list(parameters, start_time, query_id):
files = next(os.walk(parameters.get('folder')))[2]
logSuccess(query_id, start_time)
if not files:
return jsonify("Empty set"), 200
return jsonify(files), 200
def storage_delete(parameters, filename, start_time, query_id):
if not isinstance(filename, str) or len(filename) > 99:
code = 400
logFail(query_id, start_time, code)
abort(code, "Too long or bad filename.")
abs_path_filename = os.path.join(parameters.get('folder'), filename)
if not os.path.isfile(abs_path_filename):
code = 404
logFail(query_id, start_time, code)
abort(code, f"No {parameters.get('entity')} with this filename.")
os.remove(abs_path_filename)
logSuccess(query_id, start_time)
return '', 204
def change_file(fileid, start_time, query_id):
if not Files.query.filter_by(fileid=fileid).all():
code = 400
logFail(query_id, start_time, code)
abort(code, "No file with such fileID in database.")
if 'file' not in request.files or not request.files['file'].filename:
code = 400
logFail(query_id, start_time, code)
abort(
code,
"Bad request body. Expected file with key 'file' and correct filename in request body."
)
filename = request.files['file'].filename \
if not request.headers.get('filename') \
else request.headers.get('filename')
if not isinstance(filename, str) or len(filename) > 99:
code = 400
logFail(query_id, start_time, code)
abort(code, "Too long or bad filename.")
filepath = f"/tmp/{uuid.uuid4()}"
request.files['file'].save(filepath)
put_params = {
'filename': filename,
'filepath': filepath,
'fileid': fileid,
'personEmail': request.headers.get('email')
}
# Изменение в бд
put_task.apply_async(args=[put_params])
logSuccess(query_id, start_time)
return '', 204
def delete_file(fileid, start_time, query_id):
if not Files.query.filter_by(fileid=fileid).all():
code = 404
logFail(query_id, start_time, code)
abort(code, "No file with such fileID in database.")
# Удаление из бд
try:
with transaction():
db.session.query(Data).filter_by(fileid=fileid).delete(
synchronize_session="fetch")
db.session.query(Files).filter_by(fileid=fileid).delete(
synchronize_session="fetch")
except HTTPException as ex:
logFail(query_id, start_time, ex.code)
raise
db.session.commit()
logSuccess(query_id, start_time)
return '', 204
def files_list(start_time, query_id):
if not Files.query.all():
logSuccess(query_id, start_time)
return jsonify("Empty set.")
try:
# Соединение таблиц и получение информации
fileinf = db.session.query(Files, func.count(Data.fileid).label('count_rows'))\
.join(Files.data)\
.group_by(Files.fileid)\
.all()
except HTTPException as ex:
logFail(query_id, start_time, ex.code)
raise
logSuccess(query_id, start_time)
return jsonify([{
"fileid": fileinf[i][0].fileid,
"filename": fileinf[i][0].filename,
"count_rows": fileinf[i].count_rows,
} for i in range(0, len(fileinf))]), 200
def file_info(fileid, start_time, query_id):
if not Files.query.filter_by(fileid=fileid).all():
code = 404
logFail(query_id, start_time, code)
abort(code, "No file with such fileID in database.")
try:
# Соединение таблиц и получение информации
fileinf = db.session.query(Files, func.count(Data.fileid).label('count_rows'))\
.join(Files.data)\
.group_by(Files.fileid)\
.having(Files.fileid == fileid)\
.first()
except HTTPException as ex:
logFail(query_id, start_time, ex.code)
raise
logSuccess(query_id, start_time)
return jsonify(fileid=int(fileid),
filename=fileinf[0].filename,
first_download=fileinf[0].first_download,
last_download=fileinf[0].last_download,
data_count=fileinf.count_rows), 200