src/Date.cc

   1 /*
   2  * Date.cc
   3  *
   4  *  Created on: Dec 7, 2010
   5  *      Author: lamikr
   6  */
   7
   8 #include <iostream>
   9
  10 #include <stdio.h>
  11 #include <time.h>
  12 #include <malloc.h>
  13
  14 #include <plp/log.h>
  15
  16 #include "Date.hh"
  17
  18 using namespace std;
  19 using namespace plp;
  20
  21 static const int CONST__DAYS_PER_MONTH[]        = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
  22
  23 Date::Date() {
  24         time_t          wtime;
  25         struct tm       *ltime;
  26
  27         time(&wtime);
  28         ltime   = localtime(&wtime);
  29         year    = 1900 + ltime->tm_year;
  30         month   = ltime->tm_mon + 1;    // ltime-month: values 0 - 11...
  31         day     = ltime->tm_mday;
  32         hour    = ltime->tm_hour;
  33         min     = ltime->tm_min;
  34         sec     = ltime->tm_sec;
  35 }
  36
  37 Date::Date(int year_param,
  38         int month_param,
  39         int day_param,
  40         int hour_param,
  41         int min_param,
  42         int sec_param) {
  43         year    = year_param;
  44         month   = month_param;
  45         day     = day_param;
  46         hour    = hour_param;
  47         min     = min_param;
  48         sec     = sec_param;
  49 }
  50
  51 Date::~Date() {
  52         // TODO Auto-generated destructor stub
  53 }
  54
  55 bool Date::is_leap_year() {
  56         bool    ret_val;
  57
  58         ret_val = false;
  59         if ((year % 4 == 0) &&
  60             ((year % 400 == 0) || (year % 100 != 0))) {
  61                 ret_val = true;
  62         }
  63         return ret_val;
  64 }
  65
  66 void Date::printout() {
  67         log_debug("%d-%02d-%02d %02d:%02d:%02d\n", year, month, day, hour, min, sec);
  68 }
  69
  70 Date *Date::clone() {
  71         Date    *ret_val;
  72
  73         ret_val = new Date(year,
  74                         month,
  75                         day,
  76                         hour,
  77                         min,
  78                         sec);
  79         return ret_val;
  80 }
  81
  82 void Date::copy(Date *date) {
  83         year    = date->year;
  84         month   = date->month;
  85         day     = date->day;
  86         hour    = date->hour;
  87         min     = date->min;
  88         sec     = date->sec;
  89 }
  90
  91 bool Date::before(Date *date2) {
  92         bool    ret_val;
  93         string  s1;
  94         string  s2;
  95
  96         ret_val = false;
  97         if (date2 != NULL) {
  98                 s1      = this->to_sortable_string();
  99                 s2      = date2->to_sortable_string();
 100                 if (s1.compare(s2) < 0) {
 101                         ret_val = true;
 102                 }
 103         }
 104         return ret_val;
 105 }
 106
 107 bool Date::equals(Date *date2) {
 108         bool ret_val;
 109
 110         ret_val = false;
 111         if (date2 != NULL) {
 112                 if ((this->sec == date2->sec) &&
 113                     (this->min == date2->min) &&
 114                     (this->hour == date2->hour) &&
 115                     (this->day == date2->day) &&
 116                     (this->month == date2->month) &&
 117                     (this->year == date2->year)) {
 118                         ret_val = true;
 119                 }
 120         }
 121         return ret_val;
 122 }
 123
 124 void Date::tomorrow() {
 125         if ((month > 0) &&
 126             (month <= 12)) {
 127                 day++;
 128                 if (day > CONST__DAYS_PER_MONTH[month - 1]) {
 129                         if ((month == 2) &&
 130                             (is_leap_year() == true) &&
 131                             (day == 29)) {
 132                                 // ok
 133                         }
 134                         else {
 135                                 day     = 1;
 136                                 month++;
 137                                 if (month == 12) {
 138                                         year++;
 139                                         month   = 1;
 140                                 }
 141                         }
 142                 }
 143         }
 144 }
 145
 146 void Date::next_hour() {
 147         if ((hour >= 0) &&
 148             (hour <= 24)) {
 149                 hour++;
 150                 if (hour > 24) {
 151                         hour    = 0;
 152                         tomorrow();
 153                 }
 154         }
 155 }
 156
 157 void Date::inc_minutes(int minutes) {
 158         int     day_c;
 159         int     hour_c;
 160         int     ii;
 161
 162         day_c   = minutes / 1440;
 163         minutes = minutes - day_c * 1440;
 164         hour_c  = minutes / 60;
 165         minutes = minutes - hour_c * 60;
 166         for (ii = 0; ii < day_c; ii++) {
 167                 tomorrow();
 168         }
 169         for (ii = 0; ii < hour_c; ii++) {
 170                 hour++;
 171                 if (hour > 24) {
 172                         hour    = 0;
 173                         tomorrow();
 174                 }
 175         }
 176         min     = min + minutes;
 177         if (min >= 60) {
 178                 min     = min % 60;
 179                 hour++;
 180                 if (hour > 24) {
 181                         hour    = 0;
 182                         tomorrow();
 183                 }
 184         }
 185 }
 186
 187 void Date::inc_seconds(int seconds) {
 188         int     min_c;
 189
 190         min_c   = seconds / 60;
 191         seconds = seconds - min_c * 60;
 192         inc_minutes(min_c);
 193         sec     = sec + seconds;
 194         if (sec >= 60) {
 195                 sec     = sec % 60;
 196                 inc_minutes(1);
 197         }
 198 }
 199
 200 string Date::to_sortable_string() {
 201         char    buffer[30];
 202         string  ret_val;
 203
 204         sprintf(buffer, "%016d%02d%02d%02d%02d%02d", year, month, day, hour, min, sec);
 205         ret_val = buffer;
 206         return ret_val;
 207 }
 208
 209 string Date::to_string() {
 210         char    buffer[30];
 211         string  ret_val;
 212
 213         sprintf(buffer, "%04d-%02d-%02d %02d:%02d:%02d", year, month, day, hour, min, sec);
 214         ret_val = buffer;
 215         return ret_val;
 216 }