Add log level

README.md

@@ -10,6 +10,7 @@ Logging errors to a file, daily file rotation, date and time stamps. Configurabl
 - Customizable directory for files
 - Daily file rotation
 - Protection of recording consecutive errors
+- Log levels
 - Thread safe
 - Exceptions
 - The possibility of printing logs in the console
@@ -31,12 +32,16 @@ using namespace marcelb;
 /**
 * Initialization and declaration
 */
-log mylog("../log");
+log mylog("../log", Level::INFO);
 
 /**
 * Put log in file
 */
-mylog.put("[EVENT] Start loging");
+mylog.debug("Debug loging");
+mylog.info("Info loging");
+mylog.warning("Warning loging");
+mylog.error("Error loging");
+mylog.fatal("Fatal loging");
 ```
 ## License
 

lib/log.hpp

@@ -17,11 +17,20 @@ namespace marcelb {
 
 using namespace std;
 
+typedef enum {
+    DEBUG = 0,
+    INFO,
+    WARNING,
+    ERROR,
+    FATAL,
+} Level;
+
 /**
  * Log class - used at the level of one log directory
 */
 class log {
     string dir;
+    Level loglevel;
     bool isKeepOpen;
     bool printInConsole;
     ofstream logfile;
@@ -58,7 +67,12 @@ class log {
     /**
      * Set log line time prefix
     */
-    void setPrefix(string &logline);
+    void setPrefix(string &logline, Level &_level);
+
+    /**
+     * Put string log in file
+    */
+    void put(string logline, Level _level);
 
     public:
 
@@ -68,12 +82,33 @@ class log {
      * optional: a bool variable if it keeps the file open, 
      * and a bool variable if it prints log lines to the console
     */
-    log (string _dir, bool _isKeepOpen = true, bool _printInConsole = false);
+    log (string _dir, Level loglevel = WARNING, bool _isKeepOpen = true, bool _printInConsole = false);
+
 
     /**
-     * Put string log in file
+     * Debug log line
+    */
+    void debug(string logline);
+
+    /**
+     * Info log line
+    */
+    void info(string logline);
+
+    /**
+     * Warning log line
+    */
+    void warning(string logline);
+
+    /**
+     * Error log line
+    */
+    void error(string logline);
+
+    /**
+     * Fatal log line
     */
-    void put(string logline);
+    void fatal(string logline);
 
     /**
      * Destruktor, close log files

src/log.cpp

@@ -1,7 +1,8 @@
 #include "../lib/log.hpp"
 
-marcelb::log::log(string _dir, bool _isKeepOpen, bool _printInConsole) {
+marcelb::log::log(string _dir, Level _loglevel, bool _isKeepOpen, bool _printInConsole) {
    dir = _dir;
+   loglevel = _loglevel;
    isKeepOpen = _isKeepOpen;
    printInConsole = _printInConsole;
 
@@ -42,14 +43,17 @@ void marcelb::log::setMoment() {
    moment = localtime (&rawtime);
 }
 
-void marcelb::log::put(string logline) {
+void marcelb::log::put(string logline, Level _level) {
+   if (_level < loglevel)  {
+      return;
+   }
    io.lock();
    if (printInConsole) {
       cout << logline << endl;
    }
 
    setMoment();
-   setPrefix(logline);
+   setPrefix(logline, _level);
 
    if (day != moment->tm_mday) {
       if (isKeepOpen && logfile.is_open()) {
@@ -90,16 +94,58 @@ void marcelb::log::setPath() {
    path = dir + to_string(moment->tm_year+1900) + '-' + mon.str() + '-' + _day.str() + ".log";
 }
 
-void marcelb::log::setPrefix(string &logline) {
+void marcelb::log::setPrefix(string &logline, Level &_level) {
    stringstream hour, min, sec;
    hour << setw(2) << setfill('0') << moment->tm_hour;
    min << setw(2) << setfill('0') << moment->tm_min;
    sec << setw(2) << setfill('0') << moment->tm_sec;
 
-   string _logline = hour.str() + ':' + min.str() + ':' + sec.str() + ' ' + logline;
-   logline = _logline;
+   string _logline = hour.str() + ':' + min.str() + ':' + sec.str();// + logline;
+   switch (_level) {
+      case DEBUG:
+         _logline += " [DEBUG]   ";
+         break;
+      case INFO:
+         _logline += " [INFO]    ";
+         break;
+      case WARNING:
+         _logline += " [WARNING] ";
+         break;
+      case ERROR:
+         _logline += " [ERROR]   ";
+         break;
+      case FATAL:
+         _logline += " [FATAL]   ";
+         break;
+      default:
+         _logline += " [UNAKOWN] ";
+         break;
+
+   }
+   logline = _logline + logline;
+}
+
+void marcelb::log::debug(string logline) {
+   put(logline, DEBUG);
+}
+
+void marcelb::log::info(string logline) {
+   put(logline, INFO);
 }
 
+void marcelb::log::warning(string logline) {
+   put(logline, WARNING);
+}
+
+void marcelb::log::error(string logline) {
+   put(logline, ERROR);
+}
+
+void marcelb::log::fatal(string logline) {
+   put(logline, FATAL);
+}
+
+
 marcelb::log::~log() {
    loose();
 }

test/test.cpp

@@ -5,13 +5,14 @@
 using namespace std;
 using namespace marcelb;
 
-log mylog("../example", false);
+log mylog("../example", Level::FATAL, false);
 
 int main() {
-
-//     log mylog("../example", false);
-
-    mylog.put("[EVENT] Start loging");
+    mylog.debug("Start debug loging");
+    mylog.info("Start info loging");
+    mylog.warning("Start warning loging");
+    mylog.error("Start error loging");
+    mylog.fatal("Start fatal loging");
 
     return 0;
 }