Project import generated by Copybara.

PiperOrigin-RevId: 253489161
2019-06-16 16:06:57 -07:00
commit d68f5e4169
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+// Copyright 2019 The MediaPipe Authors.
+//
+// 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 "mediapipe/framework/tool/status_util.h"
+
+#include <vector>
+
+#include "absl/strings/str_cat.h"
+#include "absl/strings/str_join.h"
+
+namespace mediapipe {
+namespace tool {
+
+::mediapipe::Status StatusInvalid(const std::string& message) {
+  return ::mediapipe::Status(::mediapipe::StatusCode::kInvalidArgument,
+                             message);
+}
+
+::mediapipe::Status StatusFail(const std::string& message) {
+  return ::mediapipe::Status(::mediapipe::StatusCode::kUnknown, message);
+}
+
+::mediapipe::Status StatusStop() {
+  return ::mediapipe::Status(::mediapipe::StatusCode::kOutOfRange,
+                             "::mediapipe::tool::StatusStop()");
+}
+
+::mediapipe::Status AddStatusPrefix(const std::string& prefix,
+                                    const ::mediapipe::Status& status) {
+  return ::mediapipe::Status(status.code(),
+                             absl::StrCat(prefix, status.message()));
+}
+
+::mediapipe::Status CombinedStatus(
+    const std::string& general_comment,
+    const std::vector<::mediapipe::Status>& statuses) {
+  // The final error code is ::mediapipe::StatusCode::kUnknown if not all
+  // the error codes are the same.  Otherwise it is the same error code
+  // as all of the (non-OK) statuses.  If statuses is empty or they are
+  // all OK, then ::mediapipe::OkStatus() is returned.
+  ::mediapipe::StatusCode error_code = ::mediapipe::StatusCode::kOk;
+  std::vector<std::string> errors;
+  for (const ::mediapipe::Status& status : statuses) {
+    if (!status.ok()) {
+      errors.emplace_back(status.message());
+      if (error_code == ::mediapipe::StatusCode::kOk) {
+        error_code = status.code();
+      } else if (error_code != status.code()) {
+        error_code = ::mediapipe::StatusCode::kUnknown;
+      }
+    }
+  }
+  return ::mediapipe::Status(
+      error_code,
+      absl::StrCat(general_comment, "\n", absl::StrJoin(errors, "\n")));
+}
+
+}  // namespace tool
+}  // namespace mediapipe