alexguo-db commented on code in PR #3177: URL: https://github.com/apache/arrow-adbc/pull/3177#discussion_r2220274834
########## csharp/src/Drivers/Databricks/DatabricksConnection.cs: ########## @@ -334,44 +336,78 @@ protected override HttpMessageHandler CreateHttpHandler() baseHandler = new RetryHttpHandler(baseHandler, TemporarilyUnavailableRetryTimeout); } - // Add OAuth handler if OAuth authentication is being used + // Add OAuth client credentials handler if OAuth M2M authentication is being used if (Properties.TryGetValue(SparkParameters.AuthType, out string? authType) && SparkAuthTypeParser.TryParse(authType, out SparkAuthType authTypeValue) && authTypeValue == SparkAuthType.OAuth && Properties.TryGetValue(DatabricksParameters.OAuthGrantType, out string? grantTypeStr) && DatabricksOAuthGrantTypeParser.TryParse(grantTypeStr, out DatabricksOAuthGrantType grantType) && grantType == DatabricksOAuthGrantType.ClientCredentials) { - // Note: We assume that properties have already been validated - if (Properties.TryGetValue(SparkParameters.HostName, out string? host) && !string.IsNullOrEmpty(host)) - { - // Use hostname directly if provided - } - else if (Properties.TryGetValue(AdbcOptions.Uri, out string? uri) && !string.IsNullOrEmpty(uri)) - { - // Extract hostname from URI if URI is provided - if (Uri.TryCreate(uri, UriKind.Absolute, out Uri? parsedUri)) - { - host = parsedUri.Host; - } - } + string host = GetHost(); Properties.TryGetValue(DatabricksParameters.OAuthClientId, out string? clientId); Properties.TryGetValue(DatabricksParameters.OAuthClientSecret, out string? clientSecret); Properties.TryGetValue(DatabricksParameters.OAuthScope, out string? scope); - HttpClient OauthHttpClient = new HttpClient(HiveServer2TlsImpl.NewHttpClientHandler(TlsOptions, _proxyConfigurator)); + if (_httpClient == null) Review Comment: No, it should only be called once per connection. https://github.com/apache/arrow-adbc/blob/main/csharp/src/Drivers/Databricks/DatabricksDatabase.cs#L43 Specifically, it's called during OpenAsync, which is called right after initializing the DatabricksConnection I added the change you suggested -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org