Source code for opencensus.trace.execution_context
# Copyright 2017, OpenCensus Authors
#
# Licensed 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.
from opencensus.common.runtime_context import RuntimeContext
from opencensus.trace.tracers import noop_tracer
_attrs_slot = RuntimeContext.register_slot('attrs', lambda: {})
_current_span_slot = RuntimeContext.register_slot('current_span', None)
_tracer_slot = RuntimeContext.register_slot('tracer', noop_tracer.NoopTracer())
[docs]def get_opencensus_tracer():
"""Get the opencensus tracer from runtime context."""
return RuntimeContext.tracer
[docs]def set_opencensus_tracer(tracer):
"""Add the tracer to runtime context."""
RuntimeContext.tracer = tracer
def set_opencensus_attr(attr_key, attr_value):
attrs = RuntimeContext.attrs.copy()
attrs[attr_key] = attr_value
RuntimeContext.attrs = attrs
def set_opencensus_attrs(attrs):
RuntimeContext.attrs = attrs
def get_opencensus_attr(attr_key):
return RuntimeContext.attrs.get(attr_key)
def get_opencensus_attrs():
return RuntimeContext.attrs
def get_current_span():
return RuntimeContext.current_span
def set_current_span(current_span):
RuntimeContext.current_span = current_span
def get_opencensus_full_context():
attrs = RuntimeContext.attrs
current_span = RuntimeContext.current_span
tracer = RuntimeContext.tracer
return tracer, current_span, attrs
def set_opencensus_full_context(tracer, span, attrs):
set_opencensus_tracer(tracer)
set_current_span(span)
set_opencensus_attrs(attrs or {})
def clean():
_attrs_slot.clear()
_current_span_slot.clear()
_tracer_slot.clear()
[docs]def clear():
"""Clear the context, used in test."""
clean()