/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "utils/base/logging_raw.h"
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#include <stdio.h>
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#include <string>
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// NOTE: this file contains two implementations: one for Android, one for all
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// other cases. We always build exactly one implementation.
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#if defined(__ANDROID__)
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// Compiled as part of Android.
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#include <android/log.h>
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namespace libtextclassifier3 {
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namespace logging {
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namespace {
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// Converts LogSeverity to level for __android_log_write.
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int GetAndroidLogLevel(LogSeverity severity) {
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switch (severity) {
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case FATAL:
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return ANDROID_LOG_FATAL;
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case ERROR:
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return ANDROID_LOG_ERROR;
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case WARNING:
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return ANDROID_LOG_WARN;
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case INFO:
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return ANDROID_LOG_INFO;
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default:
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return ANDROID_LOG_DEBUG;
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}
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}
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} // namespace
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void LowLevelLogging(LogSeverity severity, const std::string& tag,
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const std::string& message) {
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const int android_log_level = GetAndroidLogLevel(severity);
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#if !defined(TC3_DEBUG_LOGGING)
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if (android_log_level != ANDROID_LOG_ERROR &&
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android_log_level != ANDROID_LOG_FATAL) {
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return;
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}
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#endif
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__android_log_write(android_log_level, tag.c_str(), message.c_str());
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}
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} // namespace logging
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} // namespace libtextclassifier3
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#else // if defined(__ANDROID__)
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// Not on Android: implement LowLevelLogging to print to stderr (see below).
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namespace libtextclassifier3 {
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namespace logging {
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namespace {
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// Converts LogSeverity to human-readable text.
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const char *LogSeverityToString(LogSeverity severity) {
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switch (severity) {
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case INFO:
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return "INFO";
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case WARNING:
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return "WARNING";
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case ERROR:
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return "ERROR";
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case FATAL:
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return "FATAL";
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default:
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return "UNKNOWN";
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}
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}
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} // namespace
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void LowLevelLogging(LogSeverity severity, const std::string &tag,
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const std::string &message) {
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fprintf(stderr, "[%s] %s : %s\n", LogSeverityToString(severity), tag.c_str(),
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message.c_str());
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fflush(stderr);
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}
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} // namespace logging
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} // namespace libtextclassifier3
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#endif // if defined(__ANDROID__)
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