Add PyMySQL instrumentor support for sqlcommenting (#2942)

* WIP

* Add _DB_DRIVER_ALIASES

* Add mysql_client_version to sqlcomment

* lint

* Fix existing tests

* lint test

* Add PyMySQL dbapi commenter case

* Add test

* Add test

* Add test

* Add tests

* Changelog

* calculate_commenter_data at init of DatabaseApiIntegration

* try-except if NoneType module

* Add pymysql sqlcomment support

* Add unit tests

* Update docstring

* Changelog

* pymysql instrument_connection specifies connect_module

* lint

* Add tests

* Fix doc

---------

Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>

CHANGELOG.md

@@ -54,6 +54,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2635](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2635))
 - `opentelemetry-instrumentation` Add support for string based dotted module paths in unwrap
   ([#2919](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2919))
+- `opentelemetry-instrumentation-pymysql` Add sqlcommenter support
+  ([#2942](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2942))
 
 ### Fixed
 

instrumentation/opentelemetry-instrumentation-pymysql/src/opentelemetry/instrumentation/pymysql/__init__.py

@@ -26,7 +26,6 @@ Usage
     import pymysql
     from opentelemetry.instrumentation.pymysql import PyMySQLInstrumentor
 
-
     PyMySQLInstrumentor().instrument()
 
     cnx = pymysql.connect(database="MySQL_Database")
@@ -36,6 +35,76 @@ Usage
     cursor.close()
     cnx.close()
 
+SQLCOMMENTER
+*****************************************
+You can optionally configure PyMySQL instrumentation to enable sqlcommenter which enriches
+the query with contextual information.
+
+Usage
+-----
+
+.. code:: python
+
+    import pymysql
+    from opentelemetry.instrumentation.pymysql import PyMySQLInstrumentor
+
+    PyMySQLInstrumentor().instrument(enable_commenter=True, commenter_options={})
+
+    cnx = pymysql.connect(database="MySQL_Database")
+    cursor = cnx.cursor()
+    cursor.execute("INSERT INTO test (testField) VALUES (123)"
+    cnx.commit()
+    cursor.close()
+    cnx.close()
+
+
+For example,
+::
+
+   Invoking cursor.execute("INSERT INTO test (testField) VALUES (123)") will lead to sql query "INSERT INTO test (testField) VALUES (123)" but when SQLCommenter is enabled
+   the query will get appended with some configurable tags like "INSERT INTO test (testField) VALUES (123) /*tag=value*/;"
+
+
+SQLCommenter Configurations
+***************************
+We can configure the tags to be appended to the sqlquery log by adding configuration inside commenter_options(default:{}) keyword
+
+db_driver = True(Default) or False
+
+For example,
+::
+Enabling this flag will add pymysql and its version, e.g. /*pymysql%%3A1.2.3*/
+
+dbapi_threadsafety = True(Default) or False
+
+For example,
+::
+Enabling this flag will add threadsafety /*dbapi_threadsafety=2*/
+
+dbapi_level = True(Default) or False
+
+For example,
+::
+Enabling this flag will add dbapi_level /*dbapi_level='2.0'*/
+
+mysql_client_version = True(Default) or False
+
+For example,
+::
+Enabling this flag will add mysql_client_version /*mysql_client_version='123'*/
+
+driver_paramstyle = True(Default) or False
+
+For example,
+::
+Enabling this flag will add driver_paramstyle /*driver_paramstyle='pyformat'*/
+
+opentelemetry_values = True(Default) or False
+
+For example,
+::
+Enabling this flag will add traceparent values /*traceparent='00-03afa25236b8cd948fa853d67038ac79-405ff022e8247c46-01'*/
+
 API
 ---
 """
@@ -59,14 +128,16 @@ _DATABASE_SYSTEM = "mysql"
 
 
 class PyMySQLInstrumentor(BaseInstrumentor):
-    def instrumentation_dependencies(self) -> Collection[str]:
+    def instrumentation_dependencies(self) -> Collection[str]:  # pylint: disable=no-self-use
         return _instruments
 
-    def _instrument(self, **kwargs):
+    def _instrument(self, **kwargs):  # pylint: disable=no-self-use
         """Integrate with the PyMySQL library.
         https://github.com/PyMySQL/PyMySQL/
         """
         tracer_provider = kwargs.get("tracer_provider")
+        enable_sqlcommenter = kwargs.get("enable_commenter", False)
+        commenter_options = kwargs.get("commenter_options", {})
 
         dbapi.wrap_connect(
             __name__,
@@ -76,14 +147,21 @@ class PyMySQLInstrumentor(BaseInstrumentor):
             _CONNECTION_ATTRIBUTES,
             version=__version__,
             tracer_provider=tracer_provider,
+            enable_commenter=enable_sqlcommenter,
+            commenter_options=commenter_options,
         )
 
-    def _uninstrument(self, **kwargs):
+    def _uninstrument(self, **kwargs):  # pylint: disable=no-self-use
         """ "Disable PyMySQL instrumentation"""
         dbapi.unwrap_connect(pymysql, "connect")
 
     @staticmethod
-    def instrument_connection(connection, tracer_provider=None):
+    def instrument_connection(
+        connection,
+        tracer_provider=None,
+        enable_commenter=None,
+        commenter_options=None,
+    ):
         """Enable instrumentation in a PyMySQL connection.
 
         Args:
@@ -102,6 +180,9 @@ class PyMySQLInstrumentor(BaseInstrumentor):
             _CONNECTION_ATTRIBUTES,
             version=__version__,
             tracer_provider=tracer_provider,
+            enable_commenter=enable_commenter,
+            commenter_options=commenter_options,
+            connect_module=pymysql,
         )
 
     @staticmethod

instrumentation/opentelemetry-instrumentation-pymysql/tests/test_pymysql_integration.py

@@ -24,6 +24,7 @@ from opentelemetry.test.test_base import TestBase
 
 
 class TestPyMysqlIntegration(TestBase):
+    # pylint: disable=invalid-name
     def tearDown(self):
         super().tearDown()
         with self.disable_logging():
@@ -111,6 +112,244 @@ class TestPyMysqlIntegration(TestBase):
         spans_list = self.memory_exporter.get_finished_spans()
         self.assertEqual(len(spans_list), 1)
 
+    @mock.patch("opentelemetry.instrumentation.dbapi.instrument_connection")
+    @mock.patch("pymysql.connect")
+    # pylint: disable=unused-argument
+    def test_instrument_connection_enable_commenter_dbapi_kwargs(
+        self,
+        mock_connect,
+        mock_instrument_connection,
+    ):
+        cnx = pymysql.connect(database="test")
+        cnx = PyMySQLInstrumentor().instrument_connection(
+            cnx,
+            enable_commenter=True,
+            commenter_options={"foo": True},
+        )
+        cursor = cnx.cursor()
+        cursor.execute("SELECT * FROM test")
+        kwargs = mock_instrument_connection.call_args[1]
+        self.assertEqual(kwargs["enable_commenter"], True)
+        self.assertEqual(kwargs["commenter_options"], {"foo": True})
+
+    def test_instrument_connection_with_dbapi_sqlcomment_enabled(self):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            cnx_proxy = PyMySQLInstrumentor().instrument_connection(
+                mock_connection,
+                enable_commenter=True,
+            )
+            cnx_proxy.cursor().execute("Select 1;")
+
+            spans_list = self.memory_exporter.get_finished_spans()
+            span = spans_list[0]
+            span_id = format(span.get_span_context().span_id, "016x")
+            trace_id = format(span.get_span_context().trace_id, "032x")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                f"Select 1 /*db_driver='pymysql%%3Afoobar',dbapi_level='123',dbapi_threadsafety='123',driver_paramstyle='test',mysql_client_version='foobaz',traceparent='00-{trace_id}-{span_id}-01'*/;",
+            )
+
+    def test_instrument_connection_with_dbapi_sqlcomment_enabled_with_options(
+        self,
+    ):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            cnx_proxy = PyMySQLInstrumentor().instrument_connection(
+                mock_connection,
+                enable_commenter=True,
+                commenter_options={
+                    "dbapi_level": False,
+                    "dbapi_threadsafety": True,
+                    "driver_paramstyle": False,
+                },
+            )
+            cnx_proxy.cursor().execute("Select 1;")
+
+            spans_list = self.memory_exporter.get_finished_spans()
+            span = spans_list[0]
+            span_id = format(span.get_span_context().span_id, "016x")
+            trace_id = format(span.get_span_context().trace_id, "032x")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                f"Select 1 /*db_driver='pymysql%%3Afoobar',dbapi_threadsafety='123',mysql_client_version='foobaz',traceparent='00-{trace_id}-{span_id}-01'*/;",
+            )
+
+    def test_instrument_connection_with_dbapi_sqlcomment_not_enabled_default(
+        self,
+    ):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            cnx_proxy = PyMySQLInstrumentor().instrument_connection(
+                mock_connection,
+            )
+            cnx_proxy.cursor().execute("Select 1;")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                "Select 1;",
+            )
+
+    @mock.patch("opentelemetry.instrumentation.dbapi.wrap_connect")
+    @mock.patch("pymysql.connect")
+    # pylint: disable=unused-argument
+    def test_instrument_enable_commenter_dbapi_kwargs(
+        self,
+        mock_connect,
+        mock_wrap_connect,
+    ):
+        PyMySQLInstrumentor()._instrument(
+            enable_commenter=True,
+            commenter_options={"foo": True},
+        )
+        kwargs = mock_wrap_connect.call_args[1]
+        self.assertEqual(kwargs["enable_commenter"], True)
+        self.assertEqual(kwargs["commenter_options"], {"foo": True})
+
+    def test_instrument_with_dbapi_sqlcomment_enabled(
+        self,
+    ):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            PyMySQLInstrumentor()._instrument(
+                enable_commenter=True,
+            )
+            cnx = mock_connect_module.connect(database="test")
+            cursor = cnx.cursor()
+            cursor.execute("Select 1;")
+
+            spans_list = self.memory_exporter.get_finished_spans()
+            span = spans_list[0]
+            span_id = format(span.get_span_context().span_id, "016x")
+            trace_id = format(span.get_span_context().trace_id, "032x")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                f"Select 1 /*db_driver='pymysql%%3Afoobar',dbapi_level='123',dbapi_threadsafety='123',driver_paramstyle='test',mysql_client_version='foobaz',traceparent='00-{trace_id}-{span_id}-01'*/;",
+            )
+
+    def test_instrument_with_dbapi_sqlcomment_enabled_with_options(
+        self,
+    ):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            PyMySQLInstrumentor()._instrument(
+                enable_commenter=True,
+                commenter_options={
+                    "dbapi_level": False,
+                    "dbapi_threadsafety": True,
+                    "driver_paramstyle": False,
+                },
+            )
+            cnx = mock_connect_module.connect(database="test")
+            cursor = cnx.cursor()
+            cursor.execute("Select 1;")
+
+            spans_list = self.memory_exporter.get_finished_spans()
+            span = spans_list[0]
+            span_id = format(span.get_span_context().span_id, "016x")
+            trace_id = format(span.get_span_context().trace_id, "032x")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                f"Select 1 /*db_driver='pymysql%%3Afoobar',dbapi_threadsafety='123',mysql_client_version='foobaz',traceparent='00-{trace_id}-{span_id}-01'*/;",
+            )
+
+    def test_instrument_with_dbapi_sqlcomment_not_enabled_default(
+        self,
+    ):
+        mock_connect_module = mock.MagicMock(
+            __name__="pymysql",
+            __version__="foobar",
+            threadsafety="123",
+            apilevel="123",
+            paramstyle="test",
+        )
+        mock_connect_module.get_client_info.return_value = "foobaz"
+        mock_cursor = mock_connect_module.connect().cursor()
+        mock_connection = mock.MagicMock()
+        mock_connection.cursor.return_value = mock_cursor
+
+        with mock.patch(
+            "opentelemetry.instrumentation.pymysql.pymysql",
+            mock_connect_module,
+        ):
+            PyMySQLInstrumentor()._instrument()
+            cnx = mock_connect_module.connect(database="test")
+            cursor = cnx.cursor()
+            cursor.execute("Select 1;")
+            self.assertEqual(
+                mock_cursor.execute.call_args[0][0],
+                "Select 1;",
+            )
+
     @mock.patch("pymysql.connect")
     # pylint: disable=unused-argument
     def test_uninstrument_connection(self, mock_connect):