icinga2/lib/base/streamlogger.cpp

129 lines
3.6 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 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 "i2-base.h"
using namespace icinga;
/**
* Constructor for the StreamLogger class.
*/
StreamLogger::StreamLogger(void)
: ILogger(), m_Stream(NULL), m_OwnsStream(false), m_Tty(false)
{ }
/**
* Constructor for the StreamLogger class.
*
* @param stream The stream.
*/
StreamLogger::StreamLogger(ostream *stream)
: ILogger(), m_Stream(stream), m_OwnsStream(false), m_Tty(IsTty(*stream))
{ }
/**
* Destructor for the StreamLogger class.
*/
StreamLogger::~StreamLogger(void)
{
if (m_OwnsStream)
delete m_Stream;
}
void StreamLogger::OpenFile(const String& filename)
{
ofstream *stream = new ofstream();
try {
stream->open(filename.CStr(), fstream::out | fstream::trunc);
if (!stream->good())
throw_exception(runtime_error("Could not open logfile '" + filename + "'"));
} catch (...) {
delete stream;
throw;
}
m_Stream = stream;
m_OwnsStream = true;
m_Tty = false;
}
/**
* Processes a log entry and outputs it to a stream.
*
* @param stream The output stream.
* @param tty Whether the output stream is a TTY.
* @param entry The log entry.
*/
void StreamLogger::ProcessLogEntry(ostream& stream, bool tty, const LogEntry& entry)
{
char timestamp[100];
time_t ts = entry.Timestamp;
tm tmnow = *localtime(&ts);
strftime(timestamp, sizeof(timestamp), "%Y/%m/%d %H:%M:%S %z", &tmnow);
if (tty) {
String colorCode;
switch (entry.Severity) {
case LogWarning:
colorCode = "\x1b[33m"; // yellow;
break;
case LogCritical:
colorCode = "\x1b[31m"; // red
break;
}
stream << colorCode;
}
stream << "[" << timestamp << "] "
<< Logger::SeverityToString(entry.Severity) << "/" << entry.Facility << ": "
<< entry.Message << std::endl;
if (tty)
stream << "\x1b[0m"; // clear colors
}
/**
* Processes a log entry and outputs it to a stream.
*
* @param entry The log entry.
*/
void StreamLogger::ProcessLogEntry(const LogEntry& entry)
{
ProcessLogEntry(*m_Stream, m_Tty, entry);
}
bool StreamLogger::IsTty(ostream& stream)
{
#ifndef _WIN32
/* Eww... */
if (stream == std::cout)
return isatty(fileno(stdout));
if (stream == std::cerr)
return isatty(fileno(stderr));
#endif /*_ WIN32 */
return false;
}