mediapipe/mediapipe/util/resource_util_android.cc
MediaPipe Team c92570f844 Use ABSL_LOG in MediaPipe.
This is needed in Chrome builds to avoid collisions with its own LOG.

PiperOrigin-RevId: 561436864
2023-08-30 13:43:49 -07:00

107 lines
3.4 KiB
C++

// 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 <vector>
#include "absl/log/absl_log.h"
#include "absl/strings/match.h"
#include "mediapipe/framework/port/file_helpers.h"
#include "mediapipe/framework/port/ret_check.h"
#include "mediapipe/framework/port/singleton.h"
#include "mediapipe/framework/port/statusor.h"
#include "mediapipe/util/android/asset_manager_util.h"
#include "mediapipe/util/android/file/base/helpers.h"
namespace mediapipe {
namespace {
absl::StatusOr<std::string> PathToResourceAsFileInternal(
const std::string& path) {
return Singleton<AssetManager>::get()->CachedFileFromAsset(path);
}
} // namespace
namespace internal {
absl::Status DefaultGetResourceContents(const std::string& path,
std::string* output,
bool read_as_binary) {
if (!read_as_binary) {
ABSL_LOG(WARNING)
<< "Setting \"read_as_binary\" to false is a no-op on Android.";
}
if (absl::StartsWith(path, "/")) {
return file::GetContents(path, output, file::Defaults());
}
if (absl::StartsWith(path, "content://")) {
MP_RETURN_IF_ERROR(
Singleton<AssetManager>::get()->ReadContentUri(path, output));
return absl::OkStatus();
}
// Try the test environment.
absl::string_view workspace = "mediapipe";
const char* test_srcdir = std::getenv("TEST_SRCDIR");
auto test_path =
file::JoinPath(test_srcdir ? test_srcdir : "", workspace, path);
if (file::Exists(test_path).ok()) {
return file::GetContents(path, output, file::Defaults());
}
RET_CHECK(Singleton<AssetManager>::get()->ReadFile(path, output))
<< "could not read asset: " << path;
return absl::OkStatus();
}
} // namespace internal
absl::StatusOr<std::string> PathToResourceAsFile(const std::string& path) {
// Return full path.
if (absl::StartsWith(path, "/")) {
return path;
}
// Try to load a relative path or a base filename as is.
{
auto status_or_path = PathToResourceAsFileInternal(path);
if (status_or_path.ok()) {
ABSL_LOG(INFO) << "Successfully loaded: " << path;
return status_or_path;
}
}
// If that fails, assume it was a relative path, and try just the base name.
{
const size_t last_slash_idx = path.find_last_of("\\/");
RET_CHECK(last_slash_idx != std::string::npos)
<< path << " doesn't have a slash in it"; // Make sure it's a path.
auto base_name = path.substr(last_slash_idx + 1);
auto status_or_path = PathToResourceAsFileInternal(base_name);
if (status_or_path.ok()) {
ABSL_LOG(INFO) << "Successfully loaded: " << base_name;
return status_or_path;
}
}
// Try the test environment.
absl::string_view workspace = "mediapipe";
auto test_path = file::JoinPath(std::getenv("TEST_SRCDIR"), workspace, path);
if (file::Exists(test_path).ok()) {
return test_path;
}
return path;
}
} // namespace mediapipe