Server IP : 85.214.239.14 / Your IP : 3.135.249.119 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /proc/3/cwd/proc/3/cwd/usr/lib/python3/dist-packages/libcloud/common/ |
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# 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. """ Common methods for obtaining a reference to the provider driver class. """ __all__ = [ 'get_driver', 'set_driver' ] def get_driver(drivers, provider, deprecated_providers=None, deprecated_constants=None): """ Get a driver. :param drivers: Dictionary containing valid providers. :type drivers: ``dict`` :param provider: Id (constant) of provider to get the driver for. :type provider: :class:`libcloud.types.Provider` :param: deprecated_providers: Dictionary with information about the deprecated drivers. :type deprecated_providers: ``dict`` :param: deprecated_constants: Dictionary with information about the deprecated provider constants. :type deprecated_constants: ``dict`` """ # Those providers have been shut down or similar. deprecated_providers = deprecated_providers or {} if provider in deprecated_providers: url = deprecated_providers[provider]['url'] reason = deprecated_providers[provider]['reason'] msg = ('Provider no longer supported: %s, please visit: %s' % (url, reason)) raise Exception(msg) # Those drivers have moved to "region" constructor argument model deprecated_constants = deprecated_constants or {} if provider in deprecated_constants: old_name = provider.upper() new_name = deprecated_constants[provider].upper() url = 'https://s.apache.org/lc0140un' msg = ('Provider constant "%s" has been removed. New constant ' 'is now called "%s".\n' 'For more information on this change and how to modify your ' 'code to work with it, please visit: %s' % (old_name, new_name, url)) raise Exception(msg) if provider in drivers: mod_name, driver_name = drivers[provider] _mod = __import__(mod_name, globals(), locals(), [driver_name]) return getattr(_mod, driver_name) # NOTE: This is for backward compatibility reasons where user could use # a string value instead of a Provider.FOO enum constant and this function # would still work for provider_name, (mod_name, driver_name) in drivers.items(): # NOTE: This works because Provider enum class overloads __eq__ if provider.lower() == provider_name.lower(): _mod = __import__(mod_name, globals(), locals(), [driver_name]) return getattr(_mod, driver_name) raise AttributeError('Provider %s does not exist' % (provider)) def set_driver(drivers, provider, module, klass): """ Sets a driver. :param drivers: Dictionary to store providers. :param provider: Id of provider to set driver for :type provider: :class:`libcloud.types.Provider` :param module: The module which contains the driver :type module: L :param klass: The driver class name :type klass: """ if provider in drivers: raise AttributeError('Provider %s already registered' % (provider)) drivers[provider] = (module, klass) # Check if this driver is valid try: driver = get_driver(drivers, provider) except (ImportError, AttributeError) as exp: drivers.pop(provider) raise exp return driver