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# RhodeCode VCSServer provides access to different vcs backends via network.
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# Copyright (C) 2014-2023 RhodeCode GmbH
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from vcsserver.lib._vendor.statsd import client_from_config
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class StatsdClientNotInitialised(Exception):
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pass
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class _Singleton(type):
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"""A metaclass that creates a Singleton base class when called."""
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_instances = {}
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def __call__(cls, *args, **kwargs):
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if cls not in cls._instances:
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cls._instances[cls] = super().__call__(*args, **kwargs)
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return cls._instances[cls]
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class Singleton(_Singleton("SingletonMeta", (object,), {})):
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pass
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class StatsdClientClass(Singleton):
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setup_run = False
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statsd_client = None
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statsd = None
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strict_mode_init = False
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def __getattribute__(self, name):
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if name.startswith("statsd"):
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if self.setup_run:
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return super().__getattribute__(name)
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else:
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if self.strict_mode_init:
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raise StatsdClientNotInitialised(f"requested key was {name}")
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return None
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return super().__getattribute__(name)
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def setup(self, settings):
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"""
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Initialize the client
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"""
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strict_init_mode = settings.pop('statsd_strict_init', False)
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statsd = client_from_config(settings)
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self.statsd = statsd
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self.statsd_client = statsd
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self.setup_run = True
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StatsdClient = StatsdClientClass()
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