1 files changed, 45 insertions, 0 deletions
diff --git a/tensorflow/contrib/bigtable/kernels/bigtable_lib.cc b/tensorflow/contrib/bigtable/kernels/bigtable_lib.cc
new file mode 100644
index 0000000000..67bf14c176
--- /dev/null
+++ b/tensorflow/contrib/bigtable/kernels/bigtable_lib.cc
@@ -0,0 +1,45 @@
+/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+
+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.
+==============================================================================*/
+
+#include "tensorflow/contrib/bigtable/kernels/bigtable_lib.h"
+
+namespace tensorflow {
+
+Status GrpcStatusToTfStatus(const ::grpc::Status& status) {
+  if (status.ok()) {
+    return Status::OK();
+  }
+  auto grpc_code = status.error_code();
+  if (status.error_code() == ::grpc::StatusCode::ABORTED ||
+      status.error_code() == ::grpc::StatusCode::UNAVAILABLE ||
+      status.error_code() == ::grpc::StatusCode::OUT_OF_RANGE) {
+    grpc_code = ::grpc::StatusCode::INTERNAL;
+  }
+  return Status(static_cast<::tensorflow::error::Code>(status.error_code()),
+                strings::StrCat("Error reading from Cloud Bigtable: ",
+                                status.error_message(),
+                                " (Details: ", status.error_details(), ")"));
+}
+
+string RegexFromStringSet(const std::vector<string>& strs) {
+  CHECK(!strs.empty()) << "The list of strings to turn into a regex was empty.";
+  std::unordered_set<string> uniq(strs.begin(), strs.end());
+  if (uniq.size() == 1) {
+    return *uniq.begin();
+  }
+  return str_util::Join(uniq, "|");
+}
+
+}  // namespace tensorflow