142 lines
2.9 KiB
C++
142 lines
2.9 KiB
C++
/*
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----
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This file is part of SECONDO.
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Realizing a simple distributed filesystem for master thesis of stephan scheide
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Copyright (C) 2015,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//[$][\$]
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*/
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#ifndef DFS_LOG_H
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#define DFS_LOG_H
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#include <iostream>
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#include "str.h"
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namespace dfs {
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namespace log {
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/**
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* describes entry to be logged
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*/
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struct LogEntry {
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Str prefix;
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Str content;
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};
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/**
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* describes base logger methods
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* acts as an interface
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*/
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class Logger {
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public:
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bool canDebug;
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void debug(const Str &s);
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void fatal(const Str &s);
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void error(const Str &s);
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void warn(const Str &s);
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void info(const Str &s);
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void success(const Str &s);
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virtual void log(const LogEntry &e) = 0;
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virtual ~Logger(){}
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};
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/**
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* this Logger implementation logs to cout
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*/
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class DefaultOutLogger : public Logger {
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public:
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~DefaultOutLogger(){}
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virtual void log(const LogEntry &e);
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};
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/**
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* this Logger implementation does log anything :)
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*/
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class BlackHoleLogger : public Logger {
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public:
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virtual void log(const LogEntry &e) {}
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};
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/**
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* a simple file logger using a file to log
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* file is appended
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*/
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class FileLogger : public Logger {
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private:
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Str filename;
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public:
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void setFilename(const Str &filename);
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virtual void log(const LogEntry &e);
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};
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/**
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* a file logger with a pretty date time format
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*/
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class FormattedFileLogger : public FileLogger {
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public:
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virtual void log(const LogEntry &e);
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};
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/**
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* a composite logger which calls log of all this children
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*/
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class CompositeLogger : public Logger {
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private:
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Logger **arr;
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int count;
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public:
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CompositeLogger();
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virtual ~CompositeLogger();
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void add(Logger *l);
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virtual void log(const LogEntry &e);
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};
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/**
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* a composite logger with pretty format
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* children do not need to format
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*/
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class FormattedCompositeLogger : public CompositeLogger {
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public:
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virtual void log(const LogEntry &e);
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};
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};
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};
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#endif
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