mirror of
https://github.com/apache/impala.git
synced 2025-12-19 18:12:08 -05:00
82bd087fb1
This takes steps to make Python 2 behave like Python 3 as
a way to flush out issues with running on Python 3. Specifically,
it handles two main differences:
1. Python 3 requires absolute imports within packages. This
can be emulated via "from __future__ import absolute_import"
2. Python 3 changed division to "true" division that doesn't
round to an integer. This can be emulated via
"from __future__ import division"
This changes all Python files to add imports for absolute_import
and division. For completeness, this also includes print_function in the
import.
I scrutinized each old-division location and converted some locations
to use the integer division '//' operator if it needed an integer
result (e.g. for indices, counts of records, etc). Some code was also using
relative imports and needed to be adjusted to handle absolute_import.
This fixes all Pylint warnings about no-absolute-import and old-division,
and these warnings are now banned.
Testing:
- Ran core tests
Change-Id: Idb0fcbd11f3e8791f5951c4944be44fb580e576b
Reviewed-on: http://gerrit.cloudera.org:8080/19588
Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>
Tested-by: Joe McDonnell <joemcdonnell@cloudera.com>
79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
|
|
# or more contributor license agreements. See the NOTICE file
|
|
# distributed with this work for additional information
|
|
# regarding copyright ownership. The ASF licenses this file
|
|
# to you under the Apache License, Version 2.0 (the
|
|
# "License"); you may not use this file except in compliance
|
|
# with the License. You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing,
|
|
# software distributed under the License is distributed on an
|
|
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
# KIND, either express or implied. See the License for the
|
|
# specific language governing permissions and limitations
|
|
# under the License.
|
|
#
|
|
# ADLS access utilities
|
|
#
|
|
# This file uses the azure-data-lake-store-python client and provides simple
|
|
# functions to the Impala test suite to access Azure Data Lake Store.
|
|
|
|
from __future__ import absolute_import, division, print_function
|
|
from azure.datalake.store import core, lib, multithread, exceptions
|
|
from tests.util.filesystem_base import BaseFilesystem
|
|
from tests.util.filesystem_utils import ADLS_CLIENT_ID, ADLS_TENANT_ID, ADLS_CLIENT_SECRET
|
|
from tests.util.hdfs_util import HadoopFsCommandLineClient
|
|
|
|
class ADLSClient(BaseFilesystem):
|
|
|
|
def __init__(self, store):
|
|
self.token = lib.auth(tenant_id = ADLS_TENANT_ID,
|
|
client_secret = ADLS_CLIENT_SECRET,
|
|
client_id = ADLS_CLIENT_ID)
|
|
self.adlsclient = core.AzureDLFileSystem(self.token, store_name=store)
|
|
self.adls_cli_client = HadoopFsCommandLineClient("ADLS")
|
|
|
|
def create_file(self, path, file_data, overwrite=True):
|
|
if not overwrite and self.exists(path): return False
|
|
with self.adlsclient.open(path, 'wb') as f:
|
|
num_bytes = f.write(file_data)
|
|
assert num_bytes == len(file_data), "ADLS write failed."
|
|
return True
|
|
|
|
def make_dir(self, path, permission=None):
|
|
self.adlsclient.mkdir(path)
|
|
return True
|
|
|
|
def copy(self, src, dst, overwrite=True):
|
|
self.adls_cli_client.copy(src, dst, overwrite)
|
|
|
|
def copy_from_local(self, src, dst):
|
|
self.adls_cli_client.copy_from_local(src, dst)
|
|
|
|
def ls(self, path):
|
|
file_paths = self.adlsclient.ls(path)
|
|
files= []
|
|
for f in file_paths:
|
|
fname = f.split("/")[-1]
|
|
if not fname == '':
|
|
files += [fname]
|
|
return files
|
|
|
|
def exists(self, path):
|
|
return self.adlsclient.exists(path)
|
|
|
|
def delete_file_dir(self, path, recursive=False):
|
|
try:
|
|
self.adlsclient.rm(path, recursive)
|
|
except exceptions.FileNotFoundError as e:
|
|
return False
|
|
return True
|
|
|
|
def get_all_file_sizes(self, path):
|
|
"""Returns a list of integers which are all the file sizes of files found under
|
|
'path'."""
|
|
return [self.adlsclient.info(f)['length'] for f in self.adlsclient.ls(path) \
|
|
if self.adlsclient.info(f)['type'] == 'FILE']
|