def download_as_string(self, src):
'''read a file in data lake and download it to local machine.
src : the file path inside data lake/bucket.
tar : file path in our local machine. Directories must exist.
'''
try:
s = None
if self.on_cloud:
s = GCS.get_str_from_blob(self.bucket, src)
else:
file_path = join(self.local_dir, src)
with open(file_path, 'r') as reader:
s = reader.read()
return s
except Exception as e:
print(
'DataLakeConnector.download_as_string(), error: {}'.format(e))
