source/core/tracing/TraceLevelChecker.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 #include <anna/core/tracing/TraceWriter.hpp>
  10 #include <anna/core/functions.hpp>
  11
  12 // Local
  13 #include <anna/core/tracing/TraceLevelChecker.hpp>
  14 #include <anna/core/tracing/Configuration.hpp>
  15
  16 // STL
  17 #include <map>
  18 #include <string>
  19
  20
  21 using namespace anna::tracing;
  22 using namespace anna;
  23
  24
  25
  26 //------------------------------------------------------------------------------
  27 //------------------------------------ TraceLevelChecker::changeLevelCondition()
  28 //------------------------------------------------------------------------------
  29 bool TraceLevelChecker::changeLevelCondition(const std::string & contextData, anna::Logger::Level & targetLevel) const {
  30   Configuration & conf = Configuration::instantiate();
  31   Configuration::trace_trigger_map_t::const_iterator it;
  32   Configuration::trace_trigger_map_t & traceTriggers = (Configuration::trace_trigger_map_t &)conf.getTraceTriggers();
  33
  34   if(traceTriggers.size() != 0) {
  35     if(conf.readRegexpForTraceTriggers()) {
  36       for(it = traceTriggers.begin(); it != traceTriggers.end(); ++it) {
  37         //std::string triggerReference = (*it).first;
  38         anna::RegularExpression & triggerReference = (anna::RegularExpression &)(*it).first;
  39
  40         // /*contain*/ if (contextData.find(triggerReference) != std::string::npos /*-1*/) {
  41         //if (anna::functions::isLike(triggerReference.c_str(), contextData)) {
  42         if(triggerReference.isLike(contextData)) {
  43           targetLevel = (*it).second;
  44           return true;
  45         }
  46       }
  47     } else {
  48       Configuration::trace_trigger_map_t::const_iterator it = traceTriggers.find(contextData);
  49
  50       if(it != traceTriggers.end()) {  // found (strict match)
  51         targetLevel = (*it).second;
  52         return true;
  53       }
  54     }
  55   }
  56
  57   return (false);
  58 }
  59
  60
  61 //------------------------------------------------------------------------------
  62 //---------------------------------------------------- TraceLevelChecker::load()
  63 //------------------------------------------------------------------------------
  64 bool TraceLevelChecker::load(const char * contextData) {
  65   a_previousLevel = Logger::getLevel();
  66
  67   if(contextData) a_contextData = contextData;  // update with valid string provided
  68
  69   anna::Logger::Level targetLevel;
  70
  71   if(changeLevelCondition(a_contextData, targetLevel)) {
  72     Logger::setLevel(targetLevel);
  73     LOGDEBUG
  74     (
  75       std::string msg = "TraceLevelChecker::changeLevelCondition() is true for selective tracing: context data = '";
  76       msg += a_contextData;
  77       msg += "', trigger reference set = '";
  78       msg += (Configuration::instantiate()).asString();
  79       msg += "'";
  80       Logger::debug(msg, ANNA_FILE_LOCATION);
  81     );
  82     LOGNOTICE(Logger::notice(anna::functions::asString("Dynamic trace level changed (%s -> %s): context matchs condition for selective tracing", Logger::asString(a_previousLevel), Logger::asString(targetLevel)), ANNA_FILE_LOCATION));
  83     return (true);
  84   }
  85
  86   return (false);
  87 }
  88
  89
  90 //------------------------------------------------------------------------------
  91 //------------------------------------------------- TraceLevelChecker::restore()
  92 //------------------------------------------------------------------------------
  93 bool TraceLevelChecker::restore() {
  94   anna::Logger::Level currentLevel = Logger::getLevel();
  95
  96   if(currentLevel != a_previousLevel /* level at constructor begining */) {
  97     LOGNOTICE(Logger::notice(anna::functions::asString("Dynamic trace level restored (%s -> %s)", Logger::asString(currentLevel), Logger::asString(a_previousLevel)), ANNA_FILE_LOCATION));
  98     Logger::setLevel(a_previousLevel);
  99     return (true);
 100   }
 101
 102   return (false);
 103 }
 104