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Linux yisu-647059427c03a 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 x86_64
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nginx/1.22.1
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passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,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_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv
import tuned.logs
__all__ = ["PluginLoader"]
log = tuned.logs.get()
class PluginLoader(object):
__slots__ = ["_namespace", "_prefix", "_interface"]
def _set_loader_parameters(self):
"""
This method has to be implemented in child class and should
set _namespace, _prefix, and _interface member attributes.
"""
raise NotImplementedError()
def __init__(self):
super(PluginLoader, self).__init__()
self._namespace = None
self._prefix = None
self._interface = None
self._set_loader_parameters()
assert type(self._namespace) is str
assert type(self._prefix) is str
assert type(self._interface) is type and issubclass(self._interface, object)
def load_plugin(self, plugin_name):
assert type(plugin_name) is str
module_name = "%s.%s%s" % (self._namespace, self._prefix, plugin_name)
return self._get_class(module_name)
def _get_class(self, module_name):
log.debug("loading module %s" % module_name)
module = __import__(module_name)
path = module_name.split(".")
path.pop(0)
while len(path) > 0:
module = getattr(module, path.pop(0))
for name in module.__dict__:
cls = getattr(module, name)
if type(cls) is type and issubclass(cls, self._interface):
return cls
raise ImportError("Cannot find the plugin class.")