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Rename db framework packages from "ext" to "instrumentation" (#966)

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Leighton Chen
2020-08-03 17:48:44 -07:00
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# Changelog
## Unreleased
- Change package name to opentelemetry-instrumentation-pymongo
([#999](https://github.com/open-telemetry/opentelemetry-python/pull/999))
## 0.7b1
Released 2020-05-12
- Implement instrumentor interface ([#612](https://github.com/open-telemetry/opentelemetry-python/pull/612))
## 0.4a0
Released 2020-02-21
- Updating network connection attribute names
([#350](https://github.com/open-telemetry/opentelemetry-python/pull/350))
## 0.3a0
Released 2019-12-11
- Initial release

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graft src
graft tests
global-exclude *.pyc
global-exclude *.pyo
global-exclude __pycache__/*
include CHANGELOG.md
include MANIFEST.in
include README.rst
include LICENSE

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OpenTelemetry pymongo Instrumentation
=====================================
|pypi|
.. |pypi| image:: https://badge.fury.io/py/opentelemetry-instrumentation-pymongo.svg
:target: https://pypi.org/project/opentelemetry-instrumentation-pymongo/
Installation
------------
::
pip install opentelemetry-instrumentation-pymongo
References
----------
* `OpenTelemetry pymongo Instrumentation <https://opentelemetry-python.readthedocs.io/en/latest/instrumentation/pymongo/pymongo.html>`_
* `OpenTelemetry Project <https://opentelemetry.io/>`_

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# Copyright The OpenTelemetry 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.
#
[metadata]
name = opentelemetry-instrumentation-pymongo
description = OpenTelemetry pymongo instrumentation
long_description = file: README.rst
long_description_content_type = text/x-rst
author = OpenTelemetry Authors
author_email = cncf-opentelemetry-contributors@lists.cncf.io
url = https://github.com/open-telemetry/opentelemetry-python/tree/master/instrumentation/opentelemetry-instrumentation-pymongo
platforms = any
license = Apache-2.0
classifiers =
Development Status :: 4 - Beta
Intended Audience :: Developers
License :: OSI Approved :: Apache Software License
Programming Language :: Python
Programming Language :: Python :: 3
Programming Language :: Python :: 3.4
Programming Language :: Python :: 3.5
Programming Language :: Python :: 3.6
Programming Language :: Python :: 3.7
Programming Language :: Python :: 3.8
[options]
python_requires = >=3.4
package_dir=
=src
packages=find_namespace:
install_requires =
opentelemetry-api == 0.12.dev0
opentelemetry-instrumentation == 0.12.dev0
pymongo ~= 3.1
[options.extras_require]
test =
opentelemetry-test == 0.12.dev0
[options.packages.find]
where = src
[options.entry_points]
opentelemetry_instrumentor =
pymongo = opentelemetry.instrumentation.pymongo:PymongoInstrumentor

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# Copyright The OpenTelemetry 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.
import os
import setuptools
BASE_DIR = os.path.dirname(__file__)
VERSION_FILENAME = os.path.join(
BASE_DIR,
"src",
"opentelemetry",
"instrumentation",
"pymongo",
"version.py",
)
PACKAGE_INFO = {}
with open(VERSION_FILENAME) as f:
exec(f.read(), PACKAGE_INFO)
setuptools.setup(version=PACKAGE_INFO["__version__"])

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# Copyright The OpenTelemetry 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.
"""
The integration with MongoDB supports the `pymongo`_ library, it can be
enabled using the ``PymongoInstrumentor``.
.. _pymongo: https://pypi.org/project/pymongo
Usage
-----
.. code:: python
from pymongo import MongoClient
from opentelemetry import trace
from opentelemetry.trace import TracerProvider
from opentelemetry.instrumentation.pymongo import PymongoInstrumentor
trace.set_tracer_provider(TracerProvider())
PymongoInstrumentor().instrument()
client = MongoClient()
db = client["MongoDB_Database"]
collection = db["MongoDB_Collection"]
collection.find_one()
API
---
"""
from pymongo import monitoring
from opentelemetry import trace
from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
from opentelemetry.instrumentation.pymongo.version import __version__
from opentelemetry.trace import SpanKind, get_tracer
from opentelemetry.trace.status import Status, StatusCanonicalCode
DATABASE_TYPE = "mongodb"
COMMAND_ATTRIBUTES = ["filter", "sort", "skip", "limit", "pipeline"]
class CommandTracer(monitoring.CommandListener):
def __init__(self, tracer):
self._tracer = tracer
self._span_dict = {}
self.is_enabled = True
def started(self, event: monitoring.CommandStartedEvent):
""" Method to handle a pymongo CommandStartedEvent """
if not self.is_enabled:
return
command = event.command.get(event.command_name, "")
name = DATABASE_TYPE + "." + event.command_name
statement = event.command_name
if command:
name += "." + command
statement += " " + command
try:
span = self._tracer.start_span(name, kind=SpanKind.CLIENT)
span.set_attribute("component", DATABASE_TYPE)
span.set_attribute("db.type", DATABASE_TYPE)
span.set_attribute("db.instance", event.database_name)
span.set_attribute("db.statement", statement)
if event.connection_id is not None:
span.set_attribute("net.peer.name", event.connection_id[0])
span.set_attribute("net.peer.port", event.connection_id[1])
# pymongo specific, not specified by spec
span.set_attribute("db.mongo.operation_id", event.operation_id)
span.set_attribute("db.mongo.request_id", event.request_id)
for attr in COMMAND_ATTRIBUTES:
_attr = event.command.get(attr)
if _attr is not None:
span.set_attribute("db.mongo." + attr, str(_attr))
# Add Span to dictionary
self._span_dict[_get_span_dict_key(event)] = span
except Exception as ex: # noqa pylint: disable=broad-except
if span is not None:
span.set_status(Status(StatusCanonicalCode.INTERNAL, str(ex)))
span.end()
self._pop_span(event)
def succeeded(self, event: monitoring.CommandSucceededEvent):
""" Method to handle a pymongo CommandSucceededEvent """
if not self.is_enabled:
return
span = self._pop_span(event)
if span is None:
return
span.set_attribute("db.mongo.duration_micros", event.duration_micros)
span.set_status(Status(StatusCanonicalCode.OK, event.reply))
span.end()
def failed(self, event: monitoring.CommandFailedEvent):
""" Method to handle a pymongo CommandFailedEvent """
if not self.is_enabled:
return
span = self._pop_span(event)
if span is None:
return
span.set_attribute("db.mongo.duration_micros", event.duration_micros)
span.set_status(Status(StatusCanonicalCode.UNKNOWN, event.failure))
span.end()
def _pop_span(self, event):
return self._span_dict.pop(_get_span_dict_key(event), None)
def _get_span_dict_key(event):
if event.connection_id is not None:
return (event.request_id, event.connection_id)
return event.request_id
class PymongoInstrumentor(BaseInstrumentor):
_commandtracer_instance = None # type CommandTracer
# The instrumentation for PyMongo is based on the event listener interface
# https://api.mongodb.com/python/current/api/pymongo/monitoring.html.
# This interface only allows to register listeners and does not provide
# an unregister API. In order to provide a mechanishm to disable
# instrumentation an enabled flag is implemented in CommandTracer,
# it's checked in the different listeners.
def _instrument(self, **kwargs):
"""Integrate with pymongo to trace it using event listener.
https://api.mongodb.com/python/current/api/pymongo/monitoring.html
Args:
tracer_provider: The `TracerProvider` to use. If none is passed the
current configured one is used.
"""
tracer_provider = kwargs.get("tracer_provider")
# Create and register a CommandTracer only the first time
if self._commandtracer_instance is None:
tracer = get_tracer(__name__, __version__, tracer_provider)
self._commandtracer_instance = CommandTracer(tracer)
monitoring.register(self._commandtracer_instance)
# If already created, just enable it
self._commandtracer_instance.is_enabled = True
def _uninstrument(self, **kwargs):
if self._commandtracer_instance is not None:
self._commandtracer_instance.is_enabled = False

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# Copyright The OpenTelemetry 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.
__version__ = "0.12.dev0"

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# Copyright The OpenTelemetry 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 unittest import mock
from opentelemetry import trace as trace_api
from opentelemetry.instrumentation.pymongo import (
CommandTracer,
PymongoInstrumentor,
)
from opentelemetry.test.test_base import TestBase
class TestPymongo(TestBase):
def setUp(self):
super().setUp()
self.tracer = self.tracer_provider.get_tracer(__name__)
def test_pymongo_instrumentor(self):
mock_register = mock.Mock()
patch = mock.patch(
"pymongo.monitoring.register", side_effect=mock_register
)
with patch:
PymongoInstrumentor().instrument()
self.assertTrue(mock_register.called)
def test_started(self):
command_attrs = {
"filter": "filter",
"sort": "sort",
"limit": "limit",
"pipeline": "pipeline",
"command_name": "find",
}
command_tracer = CommandTracer(self.tracer)
mock_event = MockEvent(
command_attrs, ("test.com", "1234"), "test_request_id"
)
command_tracer.started(event=mock_event)
# the memory exporter can't be used here because the span isn't ended
# yet
# pylint: disable=protected-access
span = command_tracer._pop_span(mock_event)
self.assertIs(span.kind, trace_api.SpanKind.CLIENT)
self.assertEqual(span.name, "mongodb.command_name.find")
self.assertEqual(span.attributes["component"], "mongodb")
self.assertEqual(span.attributes["db.type"], "mongodb")
self.assertEqual(span.attributes["db.instance"], "database_name")
self.assertEqual(span.attributes["db.statement"], "command_name find")
self.assertEqual(span.attributes["net.peer.name"], "test.com")
self.assertEqual(span.attributes["net.peer.port"], "1234")
self.assertEqual(
span.attributes["db.mongo.operation_id"], "operation_id"
)
self.assertEqual(
span.attributes["db.mongo.request_id"], "test_request_id"
)
self.assertEqual(span.attributes["db.mongo.filter"], "filter")
self.assertEqual(span.attributes["db.mongo.sort"], "sort")
self.assertEqual(span.attributes["db.mongo.limit"], "limit")
self.assertEqual(span.attributes["db.mongo.pipeline"], "pipeline")
def test_succeeded(self):
mock_event = MockEvent({})
command_tracer = CommandTracer(self.tracer)
command_tracer.started(event=mock_event)
command_tracer.succeeded(event=mock_event)
spans_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans_list), 1)
span = spans_list[0]
self.assertEqual(
span.attributes["db.mongo.duration_micros"], "duration_micros"
)
self.assertIs(
span.status.canonical_code, trace_api.status.StatusCanonicalCode.OK
)
self.assertEqual(span.status.description, "reply")
self.assertIsNotNone(span.end_time)
def test_failed(self):
mock_event = MockEvent({})
command_tracer = CommandTracer(self.tracer)
command_tracer.started(event=mock_event)
command_tracer.failed(event=mock_event)
spans_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans_list), 1)
span = spans_list[0]
self.assertEqual(
span.attributes["db.mongo.duration_micros"], "duration_micros"
)
self.assertIs(
span.status.canonical_code,
trace_api.status.StatusCanonicalCode.UNKNOWN,
)
self.assertEqual(span.status.description, "failure")
self.assertIsNotNone(span.end_time)
def test_multiple_commands(self):
first_mock_event = MockEvent({}, ("firstUrl", "123"), "first")
second_mock_event = MockEvent({}, ("secondUrl", "456"), "second")
command_tracer = CommandTracer(self.tracer)
command_tracer.started(event=first_mock_event)
command_tracer.started(event=second_mock_event)
command_tracer.succeeded(event=first_mock_event)
command_tracer.failed(event=second_mock_event)
spans_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans_list), 2)
first_span = spans_list[0]
second_span = spans_list[1]
self.assertEqual(first_span.attributes["db.mongo.request_id"], "first")
self.assertIs(
first_span.status.canonical_code,
trace_api.status.StatusCanonicalCode.OK,
)
self.assertEqual(
second_span.attributes["db.mongo.request_id"], "second"
)
self.assertIs(
second_span.status.canonical_code,
trace_api.status.StatusCanonicalCode.UNKNOWN,
)
class MockCommand:
def __init__(self, command_attrs):
self.command_attrs = command_attrs
def get(self, key, default=""):
return self.command_attrs.get(key, default)
class MockEvent:
def __init__(self, command_attrs, connection_id=None, request_id=""):
self.command = MockCommand(command_attrs)
self.connection_id = connection_id
self.request_id = request_id
def __getattr__(self, item):
return item