stacktach-shoebox/shoebox/handlers.py
Levi Blackstone 3b7e69c972 Add PEP8 check and fix related issues
- Add PEP8 section to tox.ini
- Add hacking to requirements to enforce OpenStack style requirements
- Fix formatting issues flagged by flake8 check
- Add copyright notices to all remaining files
- Update .gitignore file

Change-Id: I7e9a0203ddf2002c08ac96800fe30c1c46ebba88
2015-05-05 07:43:17 -05:00

97 lines
2.8 KiB
Python

# Copyright (c) 2014 Dark Secret Software Inc.
#
# Licensed 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.
import os
import os.path
import shutil
import simport
class MissingArgument(Exception):
pass
class ArchiveCallback(object):
def __init__(self, **kwargs):
pass
def on_open(self, filename):
"""Called when an Archive is opened."""
pass
def on_close(self, filename):
"""Called when an Archive is closed.
If you move/change the file/name return the
new location so subsequent callbacks will
have the right location.
"""
return filename
class CallbackList(ArchiveCallback):
def __init__(self, **kwargs):
super(CallbackList, self).__init__(**kwargs)
self.callbacks = []
self.config = kwargs
callback_str = self.config.get('callback_list', "")
callback_str_list = [x.strip() for x in callback_str.split(",")]
self.callbacks = [simport.load(c)(**self.config)
for c in callback_str_list]
# TODO(Sandy): Need some exception handling around these.
# The failure of one shouldn't stop processing.
def on_open(self, filename):
for c in self.callbacks:
c.on_open(filename)
def on_close(self, filename):
for c in self.callbacks:
filename = c.on_close(filename)
class ChangeExtensionCallback(ArchiveCallback):
"""filename.dat becomes filename.dat.done"""
def __init__(self, **kwargs):
super(ChangeExtensionCallback, self).__init__(**kwargs)
self.new_extension = kwargs.get('new_extension', '.done')
def on_close(self, filename):
new = "%s.%s" % (filename, self.new_extension)
os.rename(filename, new)
return new
class MoveFileCallback(ArchiveCallback):
def __init__(self, **kwargs):
super(MoveFileCallback, self).__init__(**kwargs)
self.destination_folder = kwargs.get('destination_folder', '.')
def on_close(self, filename):
"""Move this file to destination folder."""
shutil.move(filename, self.destination_folder)
path, fn = os.path.split(filename)
return os.path.join(self.destination_folder, fn)
class DeleteFileCallback(ArchiveCallback):
def on_close(self, filename):
"""Delete this file."""
os.remove(filename)
return None