| 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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