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49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
import os
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import logging
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from functools import partial
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from pluginbase import PluginBase
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logger = logging.getLogger(__name__)
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here = os.path.abspath(os.path.dirname(__file__))
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get_path = partial(os.path.join, here)
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PLUGIN_PACKAGE_NAME = 'tracer.plugins'
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plugin_base = PluginBase(package=PLUGIN_PACKAGE_NAME,
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searchpath=[get_path('./plugins')])
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class TracerFactory(object):
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def __init__(self, searchpath=None):
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self.plugin_package_name = PLUGIN_PACKAGE_NAME
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self.tracer_map = {}
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searchpath = searchpath if searchpath else []
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searchpath = [searchpath] if isinstance(searchpath, str) else searchpath
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self.source = plugin_base.make_plugin_source(
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searchpath=searchpath, identifier=self.__class__.__name__)
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for plugin_name in self.source.list_plugins():
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plugin = self.source.load_plugin(plugin_name)
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plugin.setup(self)
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def on_plugin_setup(self, plugin_class):
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name = getattr(plugin_class, 'name', plugin_class.__name__)
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self.tracer_map[name.lower()] = plugin_class
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def plugin(self, name):
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return self.tracer_map.get(name, None)
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def create(self,
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tracer_type,
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tracer_config,
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span_decorator=None,
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**kwargs):
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if not tracer_type:
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return Tracer()
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plugin_class = self.plugin(tracer_type.lower())
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if not plugin_class:
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raise RuntimeError('Tracer Plugin \'{}\' not installed!'.format(tracer_type))
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tracer = plugin_class.create(tracer_config, span_decorator=span_decorator, **kwargs)
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return tracer
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