QMessage.cc

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/* Diana Reconstruction program
 *
 * Author: MP 11/11/05
 * $Id: QMessage.cc 76 2006-05-18 15:54:00Z pallas $
 *
 * Class QMessage
 *
*/
 
#include <stdexcept>
#include <iostream>
#include <sstream>
#include <unistd.h> 
 
#include "QMessage.hh"
#include "QStringHandler.hh"
 
using namespace QStringHandler;
 
Q_BEGIN_NAMESPACE
 
QMessageHandler *QMessageHandler::me = 0 ;
 
QMessageHandler *QMessageHandler::Get() {
        if (!me) {
                me = new QMessageHandler();
        }
        return me;
}
 
void QMessageHandler::Send(MsgLevel l, const std::string& sender, const std::string& msg ) {
 
        std::string s = sender;
        s += ":";
        if (s.size() < 31 ) {
                int i = 31 - s.size();
                while(i--) s += " ";
        }
        
        if ( l >= print_level ) {
                SetColor(l);
        std::istringstream msgStream(msg);
        std::string line;
        while(std::getline(msgStream,line)) {
            std::cout  << s << line << std::endl;
        }
        SetColor(NoMsg);
    }
 
    if ( l >= log_level ) {
        std::string stringLevel;
        switch(l) {
            case DebugMsg: 
                stringLevel = "(DD) ";
                break;
            case InfoMsg: 
                stringLevel = "(II) ";
                break;
            case WarnMsg: 
                stringLevel = "(WW) ";
                break;
            case ErrorMsg: 
                stringLevel = "(EE) ";
                break;
            case PanicMsg: 
                stringLevel = "(PP) ";
                break;
            case NoMsg:
            default: 
                stringLevel = "(NN) ";
                break;
        }
        std::istringstream msgStream(msg);
        std::string line;
        while(std::getline(msgStream,line)) {
            logfile << stringLevel << s << line << std::endl;
        }
 
        }
        
        if ( l == PanicMsg )
                throw std::runtime_error("Diana Panic!");
}
 
void QMessageHandler::Init(MsgLevel plevel, MsgLevel llevel,  const std::string& lfile)
{
        print_level = plevel;
        log_level = llevel;
    std::string logfilename = lfile;
        logfile.open(logfilename.c_str());
    unlink("diana_last.log");
    symlink(logfilename.c_str(), "diana_last.log");
    if(logfile.fail()) { 
        std::string msg = "cannot open logfile: " + logfilename + std::string(" for writing");
        Send(ErrorMsg,"QMessageHandler",msg);
    } else {
        std::string msg = "logfile is: " + logfilename;
        Send(InfoMsg,"QMessageHandler",msg);
    }
 
    time_t now = ::time(0);
    char time_s[100];
    ::strftime(time_s,50,"Diana Run Started at %H:%M:%S on %d-%m-%Y", ::localtime(&now) );
        Send(NoFilterMsg,"QMessageHandler",time_s);
    
 
}
QMessageHandler::QMessageHandler() {
    print_level =  InfoMsg;
    log_level = DebugMsg;
}
 
// colors: 00 default white, 31 red, 32 green, 33 yellow, 35 magenta  
// 37 bright white 36 cyan
void QMessageHandler::SetColor(MsgLevel l) {
  switch (l) {
    case NoMsg:
        case DebugMsg:
      std::cout << "\033[01;00m";
      break;                    // reset (white on black) 
    case InfoMsg:
      std::cout << "\033[01;00m";
      break;                    // green on black
    case WarnMsg:
      std::cout << "\033[01;32m";
      break;                    // yellow on black
    case ErrorMsg:
      std::cout << "\033[01;31m";
      break;                    // red on black
    case PanicMsg:
      std::cout << "\033[01;35m";
      break;                    // magenta on black
        default:
      std::cout << "\033[01;00m";
      break;                    // default (white on black) 
    }
}
 
Q_END_NAMESPACE