Add retry factory to consolidate retry strategies across dbt-bigquery

.changes/unreleased/Under the Hood-20241107-143856.yaml

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+kind: Under the Hood
+body: Create a retry factory to simplify retry strategies across dbt-bigquery
+time: 2024-11-07T14:38:56.210445-05:00
+custom:
+  Author: mikealfare osalama
+  Issue: "1395"

dbt/adapters/bigquery/clients.py

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+from google.api_core.client_info import ClientInfo
+from google.api_core.client_options import ClientOptions
+from google.api_core.retry import Retry
+from google.auth.exceptions import DefaultCredentialsError
+from google.cloud.bigquery import Client as BigQueryClient
+from google.cloud.dataproc_v1 import BatchControllerClient, JobControllerClient
+from google.cloud.storage import Client as StorageClient
+
+from dbt.adapters.events.logging import AdapterLogger
+
+import dbt.adapters.bigquery.__version__ as dbt_version
+from dbt.adapters.bigquery.credentials import (
+    BigQueryCredentials,
+    google_credentials,
+    setup_default_credentials,
+)
+
+
+_logger = AdapterLogger("BigQuery")
+
+
+def bigquery_client(credentials: BigQueryCredentials) -> BigQueryClient:
+    try:
+        return _bigquery_client(credentials)
+    except DefaultCredentialsError:
+        _logger.info("Please log into GCP to continue")
+        setup_default_credentials()
+        return _bigquery_client(credentials)
+
+
+@Retry()  # google decorator. retries on transient errors with exponential backoff
+def storage_client(credentials: BigQueryCredentials) -> StorageClient:
+    return StorageClient(
+        project=credentials.execution_project,
+        credentials=google_credentials(credentials),
+    )
+
+
+@Retry()  # google decorator. retries on transient errors with exponential backoff
+def job_controller_client(credentials: BigQueryCredentials) -> JobControllerClient:
+    return JobControllerClient(
+        credentials=google_credentials(credentials),
+        client_options=ClientOptions(api_endpoint=_dataproc_endpoint(credentials)),
+    )
+
+
+@Retry()  # google decorator. retries on transient errors with exponential backoff
+def batch_controller_client(credentials: BigQueryCredentials) -> BatchControllerClient:
+    return BatchControllerClient(
+        credentials=google_credentials(credentials),
+        client_options=ClientOptions(api_endpoint=_dataproc_endpoint(credentials)),
+    )
+
+
+@Retry()  # google decorator. retries on transient errors with exponential backoff
+def _bigquery_client(credentials: BigQueryCredentials) -> BigQueryClient:
+    return BigQueryClient(
+        credentials.execution_project,
+        google_credentials(credentials),
+        location=getattr(credentials, "location", None),
+        client_info=ClientInfo(user_agent=f"dbt-bigquery-{dbt_version.version}"),
+        client_options=ClientOptions(quota_project_id=credentials.quota_project),
+    )
+
+
+def _dataproc_endpoint(credentials: BigQueryCredentials) -> str:
+    return f"{credentials.dataproc_region}-dataproc.googleapis.com:443"