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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/sync_file_system/logger.h"
#include "base/file_util.h"
#include "base/lazy_instance.h"
#include "base/location.h"
#include "base/stringprintf.h"
#include "chrome/browser/google_apis/event_logger.h"
namespace sync_file_system {
namespace util {
namespace {
static base::LazyInstance<google_apis::EventLogger> g_logger =
LAZY_INSTANCE_INITIALIZER;
std::string LogSeverityToString(logging::LogSeverity level) {
switch (level) {
case logging::LOG_ERROR:
return "ERROR";
case logging::LOG_WARNING:
return "WARNING";
case logging::LOG_INFO:
return "INFO";
}
NOTREACHED();
return "Unknown Log Severity";
}
} // namespace
void ClearLog() {
g_logger.Pointer()->SetHistorySize(google_apis::kDefaultHistorySize);
}
void Log(logging::LogSeverity severity,
const tracked_objects::Location& location,
const char* format,
...) {
// Ignore log if level severity is not high enough.
if (severity < logging::GetMinLogLevel())
return;
std::string what;
va_list args;
va_start(args, format);
base::StringAppendV(&what, format, args);
va_end(args);
// Use same output format as normal console logger.
base::FilePath path = base::FilePath::FromUTF8Unsafe(location.file_name());
std::string log_output = base::StringPrintf(
"[%s: %s(%d)] %s",
LogSeverityToString(severity).c_str(),
path.BaseName().AsUTF8Unsafe().c_str(),
location.line_number(),
what.c_str());
// Log to WebUI.
// On thread-safety: LazyInstance guarantees thread-safety for the object
// creation. EventLogger::Log() internally maintains the lock.
google_apis::EventLogger* ptr = g_logger.Pointer();
ptr->Log("%s", log_output.c_str());
// Log to console.
logging::RawLog(severity, log_output.c_str());
}
std::vector<google_apis::EventLogger::Event> GetLogHistory() {
google_apis::EventLogger* ptr = g_logger.Pointer();
return ptr->GetHistory();
}
} // namespace util
} // namespace sync_file_system
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