Add gccl metrics header to Spanner. (googleapis#3045)

spanner/google/cloud/spanner/__init__.py

@@ -15,6 +15,10 @@
 """Cloud Spanner API package."""
 
 
+import pkg_resources
+__version__ = pkg_resources.get_distribution('google-cloud-spanner').version
+
+
 from google.cloud.spanner.client import Client
 
 from google.cloud.spanner.keyset import KeyRange

spanner/google/cloud/spanner/client.py

@@ -38,6 +38,7 @@
 from google.cloud.client import _ClientProjectMixin
 from google.cloud.credentials import get_credentials
 from google.cloud.iterator import GAXIterator
+from google.cloud.spanner import __version__
 from google.cloud.spanner._helpers import _options_with_prefix
 from google.cloud.spanner.instance import DEFAULT_NODE_COUNT
 from google.cloud.spanner.instance import Instance
@@ -152,14 +153,20 @@ def project_name(self):
     def instance_admin_api(self):
         """Helper for session-related API calls."""
         if self._instance_admin_api is None:
-            self._instance_admin_api = InstanceAdminClient()
+            self._instance_admin_api = InstanceAdminClient(
+                lib_name='gccl',
+                lib_version=__version__,
+            )
         return self._instance_admin_api
 
     @property
     def database_admin_api(self):
         """Helper for session-related API calls."""
         if self._database_admin_api is None:
-            self._database_admin_api = DatabaseAdminClient()
+            self._database_admin_api = DatabaseAdminClient(
+                lib_name='gccl',
+                lib_version=__version__,
+            )
         return self._database_admin_api
 
     def copy(self):

spanner/google/cloud/spanner/database.py

@@ -30,6 +30,7 @@
 from google.cloud.exceptions import Conflict
 from google.cloud.exceptions import NotFound
 from google.cloud.operation import register_type
+from google.cloud.spanner import __version__
 from google.cloud.spanner._helpers import _options_with_prefix
 from google.cloud.spanner.batch import Batch
 from google.cloud.spanner.session import Session
@@ -179,7 +180,8 @@ def ddl_statements(self):
     def spanner_api(self):
         """Helper for session-related API calls."""
         if self._spanner_api is None:
-            self._spanner_api = SpannerClient()
+            self._spanner_api = SpannerClient(
+                lib_name='gccl', lib_version=__version__)
         return self._spanner_api
 
     def __eq__(self, other):

spanner/setup.py

@@ -59,7 +59,7 @@
 
 setup(
     name='google-cloud-spanner',
-    version='0.23.1',
+    version='0.23.2',
     description='Python Client for Cloud Spanner',
     long_description=README,
     namespace_packages=[

spanner/unit_tests/test_client.py

@@ -106,6 +106,45 @@ def test_constructor_credentials_wo_create_scoped(self):
         expected_scopes = None
         self._constructor_test_helper(expected_scopes, creds)
 
+    def test_admin_api_lib_name(self):
+        from google.cloud.spanner import __version__
+        from google.cloud.gapic.spanner_admin_database import v1 as db
+        from google.cloud.gapic.spanner_admin_instance import v1 as inst
+
+        # Get the actual admin client classes.
+        DatabaseAdminClient = db.database_admin_client.DatabaseAdminClient
+        InstanceAdminClient = inst.instance_admin_client.InstanceAdminClient
+
+        # Test that the DatabaseAdminClient is called with the gccl library
+        # name and version.
+        with mock.patch.object(DatabaseAdminClient, '__init__') as mock_dac:
+            mock_dac.return_value = None
+            client = self._make_one(
+                credentials=_make_credentials(),
+                project='foo',
+            )
+            self.assertIsInstance(client.database_admin_api,
+                                  DatabaseAdminClient)
+            mock_dac.assert_called_once()
+            self.assertEqual(mock_dac.mock_calls[0][2]['lib_name'], 'gccl')
+            self.assertEqual(mock_dac.mock_calls[0][2]['lib_version'],
+                             __version__)
+
+        # Test that the InstanceAdminClient is called with the gccl library
+        # name and version.
+        with mock.patch.object(InstanceAdminClient, '__init__') as mock_iac:
+            mock_iac.return_value = None
+            client = self._make_one(
+                credentials=_make_credentials(),
+                project='foo',
+            )
+            self.assertIsInstance(client.instance_admin_api,
+                                  InstanceAdminClient)
+            mock_iac.assert_called_once()
+            self.assertEqual(mock_iac.mock_calls[0][2]['lib_name'], 'gccl')
+            self.assertEqual(mock_iac.mock_calls[0][2]['lib_version'],
+                             __version__)
+
     def test_instance_admin_api(self):
         from google.cloud._testing import _Monkey
         from google.cloud.spanner import client as MUT
@@ -114,14 +153,17 @@ def test_instance_admin_api(self):
         client = self._make_one(project=self.PROJECT, credentials=creds)
 
         class _Client(object):
-            pass
+            def __init__(self, *args, **kwargs):
+                self.args = args
+                self.kwargs = kwargs
 
         with _Monkey(MUT, InstanceAdminClient=_Client):
             api = client.instance_admin_api
 
         self.assertTrue(isinstance(api, _Client))
         again = client.instance_admin_api
         self.assertTrue(again is api)
+        self.assertEqual(api.kwargs['lib_name'], 'gccl')
 
     def test_database_admin_api(self):
         from google.cloud._testing import _Monkey
@@ -131,14 +173,17 @@ def test_database_admin_api(self):
         client = self._make_one(project=self.PROJECT, credentials=creds)
 
         class _Client(object):
-            pass
+            def __init__(self, *args, **kwargs):
+                self.args = args
+                self.kwargs = kwargs
 
         with _Monkey(MUT, DatabaseAdminClient=_Client):
             api = client.database_admin_api
 
         self.assertTrue(isinstance(api, _Client))
         again = client.database_admin_api
         self.assertTrue(again is api)
+        self.assertEqual(api.kwargs['lib_name'], 'gccl')
 
     def test_copy(self):
         credentials = _Credentials('value')

spanner/unit_tests/test_database.py

@@ -17,6 +17,8 @@
 
 import mock
 
+from google.cloud.spanner import __version__
+
 from google.cloud._testing import _GAXBaseAPI
 
 
@@ -188,7 +190,10 @@ def test_spanner_api_property(self):
         _client = object()
         _clients = [_client]
 
-        def _mock_spanner_client():
+        def _mock_spanner_client(*args, **kwargs):
+            self.assertIsInstance(args, tuple)
+            self.assertEqual(kwargs['lib_name'], 'gccl')
+            self.assertEqual(kwargs['lib_version'], __version__)
             return _clients.pop(0)
 
         with _Monkey(MUT, SpannerClient=_mock_spanner_client):