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/* -------------------------------------------------------------------------- */
/* Copyright 2002-2012, OpenNebula Project Leads (OpenNebula.org) */
/* */
/* 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. */
/* -------------------------------------------------------------------------- */
#ifndef _LOG_H_
#define _LOG_H_
#include <string>
#include <fstream>
using namespace std;
/**
* The Logger class is an interface used by OpenNebula components to log
* messages
*/
class Log
{
public:
enum MessageType {
ERROR = 0,
WARNING = 1,
INFO = 2,
DEBUG = 3,
DDEBUG = 4,
DDDEBUG = 5
};
static const char error_names[];
Log(const MessageType _level = WARNING):log_level(_level){};
virtual ~Log(){};
// -------------------------------------------------------------------------
// Logger interface
// -------------------------------------------------------------------------
virtual void log(
const char * module,
const MessageType type,
const char * message) = 0;
protected:
/**
* Minimum log level for the messages
*/
MessageType log_level;
};
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/**
* Log messages to a log file
*/
class FileLog : public Log
{
public:
FileLog(const string& file_name,
const MessageType level = WARNING,
ios_base::openmode mode = ios_base::app);
virtual ~FileLog();
virtual void log(
const char * module,
const MessageType type,
const char * message);
private:
char * log_file;
};
/**
* Log messages to a log file
*/
class FileLogTS : public FileLog
{
public:
FileLogTS(const string& file_name,
const MessageType level = WARNING,
ios_base::openmode mode = ios_base::app)
:FileLog(file_name,level,mode)
{
pthread_mutex_init(&log_mutex,0);
}
~FileLogTS()
{
pthread_mutex_destroy(&log_mutex);
}
void log(
const char * module,
const MessageType type,
const char * message)
{
pthread_mutex_lock(&log_mutex);
FileLog::log(module,type,message);
pthread_mutex_unlock(&log_mutex);
}
private:
pthread_mutex_t log_mutex;
};
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/**
*
*/
class CerrLog : public Log
{
public:
CerrLog(const MessageType level = WARNING):Log(level){};
~CerrLog(){};
void log(
const char * module,
const MessageType type,
const char * message);
};
#endif /* _LOG_H_ */
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