def __init__(self, get_response=None):
settings = getattr(django.conf.settings, 'OPENCENSUS', {})
settings = settings.get('TRACE', {})
self.sampler = (settings.get('SAMPLER', None)
or samplers.ProbabilitySampler())
if isinstance(self.sampler, six.string_types):
self.sampler = configuration.load(self.sampler)
self.exporter = settings.get('EXPORTER', None) or \
print_exporter.PrintExporter()
if isinstance(self.exporter, six.string_types):
self.exporter = configuration.load(self.exporter)
self.propagator = settings.get('PROPAGATOR', None) or \
trace_context_http_header_format.TraceContextPropagator()
if isinstance(self.propagator, six.string_types):
self.propagator = configuration.load(self.propagator)
self.excludelist_paths = settings.get(EXCLUDELIST_PATHS, None)
self.excludelist_hostnames = settings.get(EXCLUDELIST_HOSTNAMES, None)
if django.VERSION >= (2, ): # pragma: NO COVER
connection.execute_wrappers.append(_trace_db_call)
super().__init__(get_response)
def init_app(self, app):
self.app = app
# get settings from app config
settings = self.app.config.get('OPENCENSUS', {})
settings = settings.get('TRACE', {})
if self.sampler is None:
self.sampler = (settings.get('SAMPLER', None)
or samplers.ProbabilitySampler())
if isinstance(self.sampler, six.string_types):
self.sampler = configuration.load(self.sampler)
if self.exporter is None:
self.exporter = settings.get('EXPORTER', None) or \
print_exporter.PrintExporter()
if isinstance(self.exporter, six.string_types):
self.exporter = configuration.load(self.exporter)
if self.propagator is None:
self.propagator = settings.get('PROPAGATOR', None) or \
trace_context_http_header_format.TraceContextPropagator()
if isinstance(self.propagator, six.string_types):
self.propagator = configuration.load(self.propagator)
self.blacklist_paths = settings.get(BLACKLIST_PATHS,
self.blacklist_paths)
self.blacklist_hostnames = settings.get(BLACKLIST_HOSTNAMES, None)
self.setup_trace()
def __init__(self, get_response=None):
self.get_response = get_response
settings = getattr(django.conf.settings, 'OPENCENSUS', {})
settings = settings.get('TRACE', {})
self.sampler = (settings.get('SAMPLER', None)
or samplers.ProbabilitySampler())
if isinstance(self.sampler, six.string_types):
self.sampler = configuration.load(self.sampler)
self.exporter = settings.get('EXPORTER', None) or \
print_exporter.PrintExporter()
if isinstance(self.exporter, six.string_types):
self.exporter = configuration.load(self.exporter)
self.propagator = settings.get('PROPAGATOR', None) or \
trace_context_http_header_format.TraceContextPropagator()
if isinstance(self.propagator, six.string_types):
self.propagator = configuration.load(self.propagator)
self.blacklist_paths = settings.get(BLACKLIST_PATHS, None)
self.blacklist_hostnames = settings.get(BLACKLIST_HOSTNAMES, None)
self.explain_mode = settings.get('EXPLAIN', None)
logger.debug(f"OpenCensus Exporter: {self.exporter}")
def load_config(self, settings):
if settings.get('TRACE', {}):
settings = settings.get('TRACE', {})
self.sampler = (settings.get('SAMPLER', None) or self.sampler)
if isinstance(self.sampler, six.string_types):
self.sampler = configuration.load(self.sampler)
self.exporter = settings.get('EXPORTER', None) or self.exporter
if isinstance(self.exporter, six.string_types):
self.exporter = configuration.load(self.exporter)
self.propagator = settings.get('PROPAGATOR',
None) or self.propagator
if isinstance(self.propagator, six.string_types):
self.propagator = configuration.load(self.propagator)
def get_tracer_exporter():
global _tracer_exporter
if _tracer_exporter is None:
settings_ = getattr(settings, 'OPENCENSUS', {})
settings_ = settings_.get('TRACE', {})
_tracer_exporter = settings_.get('EXPORTER', None) or \
print_exporter.PrintExporter()
if isinstance(_tracer_exporter, str):
_tracer_exporter = configuration.load(_tracer_exporter)
return _tracer_exporter
def get_tracer_sampler():
global _tracer_sampler
if _tracer_sampler is None:
settings_ = getattr(settings, 'OPENCENSUS', {})
settings_ = settings_.get('TRACE', {})
_tracer_sampler = settings_.get('SAMPLER', None) or \
samplers.ProbabilitySampler()
if isinstance(_tracer_sampler, str):
_tracer_sampler = configuration.load(_tracer_sampler)
return _tracer_sampler
def get_tracer_propagator():
global _tracer_propagator
if _tracer_propagator is None:
settings_ = getattr(settings, 'OPENCENSUS', {})
settings_ = settings_.get('TRACE', {})
_tracer_propagator = settings_.get('PROPAGATOR', None) or \
trace_context_http_header_format.TraceContextPropagator()
if isinstance(_tracer_propagator, str):
_tracer_propagator = configuration.load(_tracer_propagator)
return _tracer_propagator
def __init__(self, get_response=None):
self.get_response = get_response
settings = getattr(django.conf.settings, 'OPENCENSUS', {})
settings = settings.get('TRACE', {})
self.sampler = settings.get('SAMPLER', None) or \
always_on.AlwaysOnSampler()
if isinstance(self.sampler, six.string_types):
self.sampler = configuration.load(self.sampler)
self.exporter = settings.get('EXPORTER', None) or \
print_exporter.PrintExporter()
if isinstance(self.exporter, six.string_types):
self.exporter = configuration.load(self.exporter)
self.propagator = settings.get('PROPAGATOR', None) or \
trace_context_http_header_format.TraceContextPropagator()
if isinstance(self.propagator, six.string_types):
self.propagator = configuration.load(self.propagator)
self.blacklist_paths = settings.get(BLACKLIST_PATHS, None)
self.blacklist_hostnames = settings.get(BLACKLIST_HOSTNAMES, None)
def test_load(self):
ns = configuration.load(
'opencensus.common.configuration.Namespace("foo")')
self.assertEqual(ns.name, 'foo')
def test_load_syntax_error(self):
with self.assertRaises(SyntaxError):
configuration.load(')')
def test_load_name_error(self):
with self.assertRaises(NameError):
configuration.load('nonexist.foo()')
def test_load_import_error(self):
with self.assertRaises(ImportError):
configuration.load('opencensus.nonexist.foo()')
from django.core.management import execute_from_command_line
import django
import django.conf
except ImportError as exc:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?") from exc
# Get OpenCensus settings from settings.py
SETTINGS = getattr(django.conf.settings, 'OPENCENSUS', {})
SETTINGS = SETTINGS.get('TRACE', {})
SAMPLER = (SETTINGS.get('SAMPLER', None) or ProbabilitySampler(rate=1.0))
if isinstance(SAMPLER, six.string_types):
SAMPLER = configuration.load(SAMPLER)
EXPORTER = SETTINGS.get('EXPORTER', None) or PrintExporter()
if isinstance(EXPORTER, six.string_types):
EXPORTER = configuration.load(EXPORTER)
TRACER = Tracer(
exporter=EXPORTER,
sampler=SAMPLER,
)
# Add tracing for PostgreSQL
config_integration.trace_integrations(['postgresql'])
# Configure logging from settings.py
logging.config.dictConfig(getattr(django.conf.settings, 'LOGGING', {}))
