From b30f5a69226310b11a7979d19e63e3b0aa873737 Mon Sep 17 00:00:00 2001
From: Matthew Tang <tangmatthew@google.com>
Date: Tue, 12 Mar 2024 14:55:00 -0700
Subject: [PATCH] feat: Add custom tool context manager for telemetry

PiperOrigin-RevId: 615181941
---
 google/cloud/aiplatform/initializer.py |  5 +++
 google/cloud/aiplatform/telemetry.py   | 60 ++++++++++++++++++++++++++
 2 files changed, 65 insertions(+)
 create mode 100644 google/cloud/aiplatform/telemetry.py

diff --git a/google/cloud/aiplatform/initializer.py b/google/cloud/aiplatform/initializer.py
index 16a8249558..e3275cb8e2 100644
--- a/google/cloud/aiplatform/initializer.py
+++ b/google/cloud/aiplatform/initializer.py
@@ -36,6 +36,7 @@
 from google.cloud.aiplatform.metadata import metadata
 from google.cloud.aiplatform.utils import resource_manager_utils
 from google.cloud.aiplatform.tensorboard import tensorboard_resource
+from google.cloud.aiplatform import telemetry
 
 from google.cloud.aiplatform.compat.types import (
     encryption_spec as gca_encryption_spec_compat,
@@ -478,6 +479,10 @@ def create_client(
         except Exception:  # pylint: disable=broad-exception-caught
             pass
 
+        if telemetry._tool_names_to_append:
+            # Must append to gapic_version due to b/259738581.
+            gapic_version = f"{gapic_version}+tools+{'+'.join(telemetry._tool_names_to_append[::-1])}"
+
         user_agent = f"{constants.USER_AGENT_PRODUCT}/{gapic_version}"
         if appended_user_agent:
             user_agent = f"{user_agent} {' '.join(appended_user_agent)}"
diff --git a/google/cloud/aiplatform/telemetry.py b/google/cloud/aiplatform/telemetry.py
new file mode 100644
index 0000000000..f8002de007
--- /dev/null
+++ b/google/cloud/aiplatform/telemetry.py
@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2024 Google LLC
+#
+# 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 contextlib
+
+_tool_names_to_append = []
+
+
+@contextlib.contextmanager
+def tool_context_manager(tool_name: str) -> None:
+    """Context manager for appending tool name to client instantiations.
+
+    Most client instantiations occur at construction time. There are a few
+    exceptions such as generate_content that uses lazy instantiation at
+    inference time (b/328511605).
+
+    Example Usage:
+
+        aiplatform.init(...)
+        with telemetry.tool_context_manager('ClientName'):
+            model = GenerativeModel("gemini-pro")
+            responses = model.generate_content("Why is the sky blue?", stream=True)
+
+    Args:
+        tool_name: The name of the client library to attribute usage to
+
+    Returns:
+        None
+    """
+    _append_tool_name(tool_name)
+    try:
+        yield
+    finally:
+        _pop_tool_name(tool_name)
+
+
+def _append_tool_name(tool_name: str) -> None:
+    _tool_names_to_append.append(tool_name)
+
+
+def _pop_tool_name(tool_name: str) -> None:
+    if not _tool_names_to_append or _tool_names_to_append[-1] != tool_name:
+        raise RuntimeError(
+            "Tool context error detected. This can occur due to parallelization."
+        )
+    _tool_names_to_append.pop()