| 1 | /* | 
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| 2 | * errorLogger.cpp | 
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| 3 | * | 
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| 4 | *  Created on: Oct 19, 2009 | 
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| 5 | *      Author: metzler | 
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| 6 | */ | 
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| 7 |  | 
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| 8 | #include <fstream> | 
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| 9 | #include "errorlogger.hpp" | 
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| 10 | #include "verbose.hpp" | 
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| 11 |  | 
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| 12 | ofstream null("/dev/null"); | 
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| 13 |  | 
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| 14 | errorLogger* errorLogger::instance = NULL; | 
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| 15 | int errorLogger::verbosity = 2; | 
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| 16 | ostream* errorLogger::nix = &null; | 
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| 17 |  | 
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| 18 | /** | 
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| 19 | * Constructor. Do not use this function. Use getInstance() instead. | 
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| 20 | * | 
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| 21 | * \return errorLogger instance | 
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| 22 | */ | 
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| 23 | errorLogger::errorLogger() | 
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| 24 | { | 
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| 25 | instance = NULL; | 
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| 26 | verbosity = 2; | 
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| 27 | }; | 
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| 28 |  | 
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| 29 | /** | 
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| 30 | * Destructor. Better use purgeInstance(). | 
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| 31 | */ | 
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| 32 | errorLogger::~errorLogger() { | 
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| 33 | verbosity = 2; | 
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| 34 | } | 
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| 35 |  | 
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| 36 | /** | 
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| 37 | * Returns the singleton errorLogger instance. | 
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| 38 | * | 
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| 39 | * \return errorLogger instance | 
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| 40 | */ | 
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| 41 | errorLogger* errorLogger::getInstance() { | 
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| 42 | if (instance == NULL) { | 
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| 43 | instance = new errorLogger(); | 
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| 44 | } | 
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| 45 |  | 
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| 46 | return instance; | 
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| 47 | } | 
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| 48 |  | 
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| 49 |  | 
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| 50 | /** | 
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| 51 | * Purges the current errorLogger instance. | 
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| 52 | */ | 
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| 53 | void errorLogger::purgeInstance() { | 
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| 54 | if (instance != NULL) { | 
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| 55 | delete instance; | 
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| 56 | } | 
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| 57 |  | 
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| 58 | instance = NULL; | 
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| 59 | } | 
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| 60 |  | 
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| 61 | /** | 
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| 62 | * Sets the verbosity. | 
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| 63 | * | 
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| 64 | * \param verbosityLevel verbosity | 
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| 65 | */ | 
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| 66 | void errorLogger::setVerbosity(int verbosityLevel) { | 
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| 67 | verbosity = verbosityLevel; | 
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| 68 | } | 
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| 69 |  | 
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| 70 | /** | 
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| 71 | * Operator for the Binary(arg) call. | 
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| 72 | * Constructs temporary a Verbose class object, wherein the Binary is stored. | 
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| 73 | * Then << is called, which calls Binary's print which adds the tabs and logs | 
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| 74 | * the stream. | 
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| 75 | * \param &ost stream to extend | 
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| 76 | * \param &m pointer to created Binary object | 
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| 77 | * \return &ost | 
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| 78 | */ | 
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| 79 | ostream& operator<<(class errorLogger& l, const Verbose& v) | 
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| 80 | { | 
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| 81 | int verbosityLevel = l.verbosity; | 
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| 82 | l.nix->clear(); | 
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| 83 | if (v.DoOutput(verbosityLevel)) { | 
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| 84 | switch(v.Verbosity) { | 
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| 85 | case 0: | 
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| 86 | cerr << "CRITICAL: "; | 
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| 87 | break; | 
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| 88 | case 1: | 
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| 89 | cerr << "ERROR: "; | 
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| 90 | break; | 
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| 91 | case 2: | 
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| 92 | cerr << "WARNING: "; | 
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| 93 | break; | 
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| 94 | default: | 
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| 95 | break; | 
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| 96 | } | 
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| 97 | v.print(cerr); | 
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| 98 | return cerr; | 
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| 99 | } else | 
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| 100 | return *l.nix; | 
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| 101 | }; | 
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| 102 | ostream& operator<<(class errorLogger* l, const Verbose& v) | 
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| 103 | { | 
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| 104 | int verbosityLevel = l->verbosity; | 
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| 105 | l->nix->clear(); | 
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| 106 | if (v.DoOutput(verbosityLevel)) { | 
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| 107 | switch(v.Verbosity) { | 
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| 108 | case 0: | 
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| 109 | cerr << "CRITICAL: "; | 
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| 110 | break; | 
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| 111 | case 1: | 
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| 112 | cerr << "ERROR: "; | 
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| 113 | break; | 
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| 114 | case 2: | 
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| 115 | cerr << "WARNING: "; | 
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| 116 | break; | 
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| 117 | default: | 
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| 118 | break; | 
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| 119 | } | 
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| 120 | v.print(cerr); | 
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| 121 | return cerr; | 
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| 122 | } else | 
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| 123 | return *l->nix; | 
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| 124 | }; | 
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| 125 |  | 
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| 126 |  | 
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