*
* Calendar cal = new Calendar(hun,sec,min,hrs,day,month,year);
*
*
*
* @author Peter Verkaik (peterverkaik@boselectro.nl)
* @version 1.5 September 30, 2003
*/
public class Calendar {
//Calendar fields //decimal contents
public int hundredth; //0-99
public int seconds; //0-59
public int minutes; //0-59
public int hours; //0-23
public int day; //0-30
public int month; //0-11
public int year; //0-32767
public int weekday; //0-6
/*
Note: these fields are public for easy reading of the fields.
Use the set() method to set the fields.
*/
//weekday names and month names
public static String[] dayName = new String[]{"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};
public static String[] monthName = new String[]{"January","February","March","April","May","June","July","August","September","October","November","December"};
//time and date conversion buffers
private static char[] outbuf = new char[37];
private static char[] inbuf = new char[10];
private static Calendar cld = new Calendar();
private static int[] val = new int[1];
/**
* Create calendar object.
( Initializes to January 1, 2003 00:00:00.00
*/
public Calendar() {
set(0, 0, 0, 0, 0, 0, 2003); //January 1, 2003, 00:00:00.00
}
/**
* Create calendar object.
(
* @param hundredth hundredths of a second (0-99)
* @param seconds seconds (0-59)
* @param minutes minutes (0-59)
* @param hours hours (0-23)
* @param day day of the month (0-30)
* @param month month (0-11)
* @param year year (1900-32767)
*/
public Calendar(int hundredth, int seconds, int minutes, int hours,
int day, int month, int year) {
set(hundredth, seconds, minutes, hours, day, month, year);
}
/**
* Set calendar record.
* Although the fields are public, use this method to set a calendar
* record as this method will set the weekday field correctly.
*
* @param hundredth hundredths of a second (0-99)
* @param seconds seconds (0-59)
* @param minutes minutes (0-59)
* @param hours hours (0-23)
* @param day day of the month (0-30)
* @param month month (0-11)
* @param year year (0-32767)
*/
public void set(int hundredth, int seconds, int minutes, int hours,
int day, int month, int year) {
this.hundredth = hundredth;
this.seconds = seconds;
this.minutes = minutes;
this.hours = hours;
this.day = day;
this.month = month;
this.year = year;
weekDay();
}
/**
* Convert bcd data to decimal data.
* Valid bcd data range 0x0000 to 0x9999.
*
* @param bcdData bcd data to be converted.
* @return decimal representation (0 to 9999) of bcd data.
*/
public int bcd2dec(int bcdData) {
int result;
result = ((bcdData>>12)&0x0F)*1000;
result = result + (((bcdData>>8)&0x0F)*100);
result = result + (((bcdData>>4)&0x0F)*10);
return result + (bcdData&0x0F);
}
/**
* Convert decimal data to bcd data.
* Valid decimal data range 0 to 9999.
*
* @param decData decimal data to be converted.
* @return bcd representation (0x0000 to 0x9999) of decimal data.
*/
public int dec2bcd(int decData) {
int result;
result = ((decData/1000)<<12);
decData = decData % 1000;
result = result | ((decData/100)<<8);
decData = decData % 100;
result = result | ((decData/10)<<4);
return result | (decData % 10);
}
/**
* Compare two strings s1 and s2 for equal start characters.
*
* @param s1 String that must equal s2 for all its characters
* @param s2 String may have more characters than s1
* @return True if s2 begins with s1.
*/
private boolean strcmp(char[] s1, char[] s2) {
int j; boolean test=false;
j=0;
while (s1[j]!=0 && s2[j]!=0) {
test = (s1[j] == s2[j]);
j++;
if (!test) break;
}
return test;
}
/**
* Calculate weekday 0-6 (sunday = 0) and update weekday field
* The fields day, month and year must be valid
*/
public void weekDay() {
int dy, mn, yr;
dy = day+1; //adjust to 1-31
mn = month+1; //adjust to 1-12
yr = year;
if (mn < 3) { //Jan & Feb = 13 & 14 preceding year
mn += 12;
yr--;
}
weekday = (dy + 2*mn + 3*(mn+1)/5 + yr + yr/4 - yr/100 + yr/400 + 1) % 7;
}
/**
* Create HH:MM:SS.nn asciiz string
*
* @param hh True to include HH in output string
* @param mm True to include MM in output string
* @param ss True to include SS in output string
* @param nn True to include NN in output string
* @return Address of static buffer holding asciiz output string.
* The buffer will be overwritten by other methods.
*/
public char[] ascTime(boolean hh, boolean mm, boolean ss, boolean nn) {
int k=0;
if (hh) k = Format.bprintf(outbuf,k,"%02d",hours);
if (hh && mm) outbuf[k++] = ':';
if (mm) k = Format.bprintf(outbuf,k,"%02d",minutes);
if (mm && ss) outbuf[k++] = ':';
if (ss) k = Format.bprintf(outbuf,k,"%02d",seconds);
if (ss && nn) outbuf[k++] = '.';
if (nn) k = Format.bprintf(outbuf,k,"%02d",hundredth);
outbuf[k]=0;
return outbuf;
}
/**
* Convert HH:MM:SS.nn ascii string
*
* @param str character array holding the ascii string
* @param index Index in str to start from
* @param hh True to include HH in output string
* @param mm True to include MM in output string
* @param ss True to include SS in output string
* @param nn True to include NN in output string
* @return Static calendar record with time fields set.
* The static record will be overwritten by other methods.
*/
public Calendar binTime(char[] str, int index, boolean hh, boolean mm, boolean ss, boolean nn) {
int k=index;
if (hh) {
k = Format.bscanf(str,k," %d",val);
cld.hours = val[0];
}
k++; //seperator
if (mm) {
k = Format.bscanf(str,k,"%d",val);
cld.minutes = val[0];
}
k++; //seperator
if (ss) {
k = Format.bscanf(str,k,"%d",val);
cld.seconds = val[0];
}
k++; //seperator
if (nn) {
k = Format.bscanf(str,k,"%d",val);
cld.hundredth = val[0];
}
return cld;
}
/**
* Create MM%DD%YY or MM%DD%YYYY asciiz string (US style)
* Create DD%MM%YY or DD%MM%YYYY asciiz string (European style)
*
* @param US True for US style, false for european style
* @param Long True for YYYY, false for YY
* @param seperator Char to seperate fields (common are - and /)
* @return Address of static buffer holding asciiz string.
* The buffer will be overwritten by other methods.
*/
public char[] ascDate(boolean US, boolean Long, char seperator) {
int k=0;
if (US) {
k = Format.bprintf(outbuf,k,"%02d",month+1);
outbuf[k++] = seperator;
k = Format.bprintf(outbuf,k,"%02d",day+1);
outbuf[k++] = seperator;
} else {
k = Format.bprintf(outbuf,k,"%02d",day+1);
outbuf[k++] = seperator;
k = Format.bprintf(outbuf,k,"%02d",month+1);
outbuf[k++] = seperator;
}
if (Long) k = Format.bprintf(outbuf,k,"%04d",year);
else k = Format.bprintf(outbuf,k,"%02d",year%100);
outbuf[k]=0;
return outbuf;
}
/**
* Convert MM%DD%YY or MM%DD%YYYY ascii string (US style)
* Convert DD%MM%YY or DD%MM%YYYY ascii string (European style)
*
* @param str character array holding the ascii string
* @param index Index in str to start from
* @param US True for US style, false for european style
* @return Static calendar record with date fields set.
* The static record will be overwritten by other methods.
*/
public Calendar binDate(char[] str, int index, boolean US) {
int k=0;
if (US) {
k = Format.bscanf(str,k," %d",val);
cld.month = val[0]-1;
k++; //seperator
k = Format.bscanf(str,k,"%d",val);
cld.day = val[0]-1;
k++; //seperator
} else {
k = Format.bscanf(str,k," %d",val);
cld.day = val[0]-1;
k++; //seperator
k = Format.bscanf(str,k,"%d",val);
cld.month = val[0]-1;
k++; //seperator
}
k = Format.bscanf(str,k,"%d",val);
cld.year = val[0];
cld.weekDay();
return cld;
}
/**
* Create Sun Jan 01 12:59:00 1999 asciiz string (short, fixed length)
* Create Sunday January 1 12:59:00 1999 asciiz string (long, variable length)
*
* @param Long True for long, false for short
* @return Address of static buffer holding asciiz string.
* The buffer will be overwritten by other methods.
*/
public char[] ascClock(boolean Long) {
int k=0;
weekDay();
if (Long) {
k = Format.bprintf(outbuf,k,"%6.9s",dayName[weekday]);
k = Format.bprintf(outbuf,k," %3.9s",monthName[month]);
k = Format.bprintf(outbuf,k," %d",day+1);
} else {
k = Format.bprintf(outbuf,k,"%3.3s",dayName[weekday]);
k = Format.bprintf(outbuf,k," %3.3s",monthName[month]);
k = Format.bprintf(outbuf,k," %02d",day+1);
}
k = Format.bprintf(outbuf,k," %02d:",hours);
k = Format.bprintf(outbuf,k,"%02d:",minutes);
k = Format.bprintf(outbuf,k,"%02d",seconds);
k = Format.bprintf(outbuf,k," %04d",year);
outbuf[k]=0;
return outbuf;
}
/**
* Convert Sun Jan 01 12:59:00 1999 ascii string (short, fixed length)
* Convert Sunday January 1 12:59:00 1999 ascii string (long, variable length)
*
* @param str character array holding the ascii string
* @param index Index in str to start from
* @return Static calendar record with all fields set.
* The static record will be overwritten by other methods.
*/
public Calendar binClock(char[] str, int index) {
int k=index; int n;
k = Format.bscanf(str,k,"%s",inbuf);
for (n=0; n<7; n++) {
if (strcmp(inbuf,dayName[n].toCharArray())) break;
}
cld.weekday = n%7;
k = Format.bscanf(str,k,"%s",inbuf);
for (n=0; n<12; n++) {
if (strcmp(inbuf,monthName[n].toCharArray())) break;
}
cld.month = n%12;
k = Format.bscanf(str,k,"%d",val);
cld.day = val[0]-1;
k = Format.bscanf(str,k,"%d",val);
cld.hours = val[0];
k = Format.bscanf(str,k,":%d",val);
cld.minutes = val[0];
k = Format.bscanf(str,k,":%d",val);
cld.seconds = val[0];
k = Format.bscanf(str,k,"%d",val);
cld.year = val[0];
cld.hundredth = 0;
return cld;
}
/**
* Get calendar time into int
*
* @return time coded in int
* b15-b11 = hours (0-23)
* b10- b5 = minutes (0-59)
* b4 - b0 = seconds/2 (0-29)
*/
public int getTimeInt() {
return (hours<<11) | (minutes<<5) | (seconds>>1);
}
/**
* Set calendar time from int
*
* @param value Int holding time
* b15-b11 = hours (0-23)
* b10- b5 = minutes (0-59)
* b4 - b0 = seconds/2 (0-29)
*/
public void setTimeInt(int value) {
hours = (value>>11)&0x1F;
minutes = (value>>5)&0x3F;
seconds = (value&0x1F)<<1;
}
/**
* Get calendar date into int
*
* @return date coded in int
* b15- b9 = year%100 (0-99)
* b8 - b5 = month (0-11)
* b4 - b0 = day (0-30)
*/
public int getDateInt() {
return ((year%100)<<9) | (month<<5) | (day);
}
/**
* Set calendar date from int.
* This will also set the weekday field.
*
* @param value Int holding date
* b15- b9 = year%100 (0-99)
* b8 - b5 = month (0-11)
* b4 - b0 = day (0-30)
*/
public void setDateInt(int value) {
year = ((value>>9)&0x7F) + 2000;
month = (value>>5)&0x0F;
day = (value&0x1F);
weekDay();
}
}