protected void validateTableServiceConfigs(AzureCloudConfig azureCloudConfig) {
    if (azureCloudConfig.azureTableConnectionString == null ||
        azureCloudConfig.azureTableConnectionString.isEmpty()) {
      throw new IllegalArgumentException(
          "Missing Azure Table connection string config " + AzureCloudConfig.AZURE_TABLE_CONNECTION_STRING);
    }
  }
Validate that all the required configs for connection string based authentication are present.
@param azureCloudConfig {@link AzureCloudConfig} object.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/ConnectionStringBasedStorageClient.java