icinga2/lib/base/logger.cpp

216 lines
5.6 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "base/application.hpp"
#include "base/streamlogger.hpp"
#include "base/logger.hpp"
#include "base/dynamictype.hpp"
#include "base/utility.hpp"
#include "base/objectlock.hpp"
#include "base/context.hpp"
#include "base/scriptglobal.hpp"
#include <boost/foreach.hpp>
#include <iostream>
using namespace icinga;
REGISTER_TYPE(Logger);
INITIALIZE_ONCE(&Logger::StaticInitialize);
std::set<Logger::Ptr> Logger::m_Loggers;
boost::mutex Logger::m_Mutex;
bool Logger::m_ConsoleLogEnabled = true;
bool Logger::m_TimestampEnabled = true;
LogSeverity Logger::m_ConsoleLogSeverity = LogInformation;
void Logger::StaticInitialize(void)
{
ScriptGlobal::Set("LogDebug", LogDebug);
ScriptGlobal::Set("LogNotice", LogNotice);
ScriptGlobal::Set("LogInformation", LogInformation);
ScriptGlobal::Set("LogWarning", LogWarning);
ScriptGlobal::Set("LogCritical", LogCritical);
}
/**
* Constructor for the Logger class.
*/
void Logger::Start(void)
{
DynamicObject::Start();
boost::mutex::scoped_lock lock(m_Mutex);
m_Loggers.insert(this);
}
void Logger::Stop(void)
{
{
boost::mutex::scoped_lock lock(m_Mutex);
m_Loggers.erase(this);
}
DynamicObject::Stop();
}
std::set<Logger::Ptr> Logger::GetLoggers(void)
{
boost::mutex::scoped_lock lock(m_Mutex);
return m_Loggers;
}
/**
* Writes a message to the application's log.
*
* @param severity The message severity.
* @param facility The log facility.
* @param message The message.
*/
void icinga::IcingaLog(LogSeverity severity, const String& facility,
const String& message)
{
LogEntry entry;
entry.Timestamp = Utility::GetTime();
entry.Severity = severity;
entry.Facility = facility;
entry.Message = message;
if (severity >= LogWarning) {
ContextTrace context;
if (context.GetLength() > 0) {
std::ostringstream trace;
trace << context;
entry.Message += "\nContext:" + trace.str();
}
}
BOOST_FOREACH(const Logger::Ptr& logger, Logger::GetLoggers()) {
ObjectLock llock(logger);
if (!logger->IsActive())
continue;
if (entry.Severity >= logger->GetMinSeverity())
logger->ProcessLogEntry(entry);
}
if (Logger::IsConsoleLogEnabled() && entry.Severity >= Logger::GetConsoleLogSeverity())
StreamLogger::ProcessLogEntry(std::cout, entry);
}
/**
* Retrieves the minimum severity for this logger.
*
* @returns The minimum severity.
*/
LogSeverity Logger::GetMinSeverity(void) const
{
String severity = GetSeverity();
if (severity.IsEmpty())
return LogInformation;
else {
LogSeverity ls = LogInformation;
try {
ls = Logger::StringToSeverity(severity);
} catch (const std::exception&) { /* use the default level */ }
return ls;
}
}
/**
* Converts a severity enum value to a string.
*
* @param severity The severity value.
*/
String Logger::SeverityToString(LogSeverity severity)
{
switch (severity) {
case LogDebug:
return "debug";
case LogNotice:
return "notice";
case LogInformation:
return "information";
case LogWarning:
return "warning";
case LogCritical:
return "critical";
default:
Log(LogCritical, "Logger", "Invalid severity.");
BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid severity."));
}
}
/**
* Converts a string to a severity enum value.
*
* @param severity The severity.
*/
LogSeverity Logger::StringToSeverity(const String& severity)
{
if (severity == "debug")
return LogDebug;
else if (severity == "notice")
return LogNotice;
else if (severity == "information")
return LogInformation;
else if (severity == "warning")
return LogWarning;
else if (severity == "critical")
return LogCritical;
else {
Log(LogCritical, "Logger")
<< "Invalid severity: '" << severity << "'.";
BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid severity: " + severity));
}
}
void Logger::DisableConsoleLog(void)
{
m_ConsoleLogEnabled = false;
}
bool Logger::IsConsoleLogEnabled(void)
{
return m_ConsoleLogEnabled;
}
void Logger::SetConsoleLogSeverity(LogSeverity logSeverity)
{
m_ConsoleLogSeverity = logSeverity;
}
LogSeverity Logger::GetConsoleLogSeverity(void)
{
return m_ConsoleLogSeverity;
}
void Logger::DisableTimestamp(bool disable)
{
m_TimestampEnabled = !disable;
}
bool Logger::IsTimestampEnabled(void)
{
return m_TimestampEnabled;
}