net.anotheria.util.Date Maven / Gradle / Ivy
package net.anotheria.util;
import java.io.Serializable;
import java.util.GregorianCalendar;
/**
* This class provide a simple date object.
*
* @author another
* @version $Id: $Id
*/
public class Date implements Serializable{
private static final long serialVersionUID = -8683008562899070994L;
/** The day of week. Initial value {@code null} */
public String wDay = null;
/** The day of month. Initial value is -1.*/
public int day = -1;
/** The month. Initial value is -1.*/
public int month = -1;
/** The yaer. Initial value is -1.*/
public int year = -1;
/** The hour of day. Initial value is -1.*/
public int hour = -1;
/**
* The minutes of hour. Initial value is -1.
*/
public int min = -1;
public int sec = 0;
private int dayOfWeek;
/** String array of month used for printing via {@code toString()} method*/
public static final String[] MONTH = {null,"Jan","Feb","Mar","Apr","Mai","Jun",
"Jul","Aug","Sep","Oct","Nov","Dec"};
/** Maximum nubers of days in month in a not leapyear*/
public static final int[] DAY_OF_MONTH= {-1,31,28,31,30,31,30,31,31,30,31,30,31};
/** The array of day names in a week*/
public static final String[] DAY = {"Sun.","Mon.","Tue.","Wed.","Thu.","Fri.","Sat."};
/**
* Default constructor. Create a date
* without hour an minutes notification. The minuts and hours have
* a value of -1 The day name will be
* calculated automaticly ba the {@code calcDay()} function.
*
* @param aDay the day
* @param aMonth the month
* @param aYear the year
*/
public Date(int aDay, int aMonth, int aYear) {
this(aDay, aMonth, aYear, -1,-1);
}
/**
* Default constructor. Create a date object. The day name will be
* calculated automaticly ba the {@code calcDay()} function.
*
* @param aDay the day
* @param aMonth the month
* @param aYear the year
* @param aHour a int.
* @param aMin a int.
*/
public Date(int aDay, int aMonth, int aYear, int aHour, int aMin){
this.month = aMonth;
this.day = aDay;
this.year = aYear;
this.hour = aHour;
this.min = aMin;
this.wDay = calcDay(aDay,aMonth,aYear);
}
/**
* Creates a new date object which correspongs to the given time in millis since 01.01.1970.
*
* @param aMillis a long.
*/
public Date(long aMillis){
GregorianCalendar cal = new GregorianCalendar();
cal.setGregorianChange(new java.util.Date(Long.MIN_VALUE));
java.util.Date d = new java.util.Date(aMillis);
cal.setTime(d);
this.month = cal.get(GregorianCalendar.MONTH)+1;
this.day = cal.get(GregorianCalendar.DATE);
this.year = cal.get(GregorianCalendar.YEAR);
this.hour = cal.get(GregorianCalendar.HOUR_OF_DAY);
this.min = cal.get(GregorianCalendar.MINUTE);
this.sec = cal.get(GregorianCalendar.SECOND);
this.wDay = calcDay(day, month, year);
}
/**
* Create a Date object for this moment
*
* @return a {@link net.anotheria.util.Date} object.
*/
public static Date currentDate(){
return new Date(System.currentTimeMillis());
}
/** Calculate the day of week.
* @param aDay the day
* @param aMonth the month
* @param aYear the year
* @return the day of week for given date
**/
private String calcDay(int aDay, int aMonth, int aYear){
//System.out.println("Month="+month);
GregorianCalendar cal = new GregorianCalendar(aYear/*-1900*/, (aMonth-1), aDay);
int dow = cal.get(GregorianCalendar.DAY_OF_WEEK);
//dow = (dow+4)%7;
// if(dow == 0)
// dow = 6;
dayOfWeek = dow-1;
return DAY[dayOfWeek];
}
/**
* Check date
*
* @param aD1 the date object to check it
* @return true if and only if the given data object is valid
*/
public static boolean isValid(Date aD1){
if(aD1.month < 1 || aD1.month > 12)
return false;
if(aD1.day < 1)
return false;
GregorianCalendar cal = new GregorianCalendar();
if(aD1.month == 2 && cal.isLeapYear(aD1.year) && aD1.day > 29)
return false;
if(aD1.month == 2 && !cal.isLeapYear(aD1.year) && aD1.day > 28)
return false;
if(aD1.month !=2 && aD1.day > DAY_OF_MONTH[aD1.month])
return false;
if(aD1.hour < -1 || aD1.hour > 23)
return false;
if(aD1.min <-1 || aD1.min > 59)
return false;
String pWDay = aD1.calcDay(aD1.day,aD1.month,aD1.year);
return pWDay.equals(aD1.wDay);
}
/**
* Returns true if this date is a valid date. For example 30 Februar is not a valid date.
*
* @return a boolean.
*/
public boolean isValid(){
return isValid(this);
}
/**
* {@inheritDoc}
*
* Returns the string representation of this date.
*/
@Override public String toString(){
String ret = wDay;
ret+= ' ' +NumberUtils.itoa(day, 2) + '.';
ret+= NumberUtils.itoa(month,2)+ '.' +year;
if(min != -1){
ret = ret + ", ";
ret += NumberUtils.itoa(hour, 2)+ ':';
ret += NumberUtils.itoa(min, 2);
}
return ret;
}
/**
* Parse date out from string
*
* @param aDateStrg Source string to parse it
* @return a {@link net.anotheria.util.Date} object.
*/
public static Date parse(String aDateStrg){
if(aDateStrg.indexOf('.')!=-1&& aDateStrg.indexOf(':')==-1)
return parseShort(aDateStrg,'.');
if(aDateStrg.indexOf('.')!=-1&& aDateStrg.indexOf(':')!=-1)
return parseLong(aDateStrg,'.');
if(aDateStrg.indexOf('-')!=-1&& aDateStrg.indexOf(':')==-1)
return parseShort(aDateStrg,'-');
if(aDateStrg.indexOf('-')!=-1&& aDateStrg.indexOf(':')!=-1)
return parseLong(aDateStrg,'-');
if(aDateStrg.indexOf(' ')!=-1&& aDateStrg.indexOf(':')==-1)
return parseShort(aDateStrg,' ');
if(aDateStrg.indexOf(' ')!=-1&& aDateStrg.indexOf(':')!=-1)
return parseLong(aDateStrg,' ');
if(aDateStrg.indexOf('.')!=-1&& aDateStrg.indexOf(':')==-1)
return parseShort(aDateStrg,'.');
if(aDateStrg.indexOf('.')!=-1&& aDateStrg.indexOf(':')!=-1)
return parseLong(aDateStrg,'.');
return null;
}
/**
* Parse date with hors and minutes out from string
*
* @param aDateStrg Source string to parse it
* @param aCh a char.
* @return a {@link net.anotheria.util.Date} object.
*/
public static Date parseLong(String aDateStrg, char aCh){
int pFirst = aDateStrg.indexOf(aCh,0);
//first_--;
String dayStrg = aDateStrg.substring(0,pFirst);
pFirst++;
int pSecond = aDateStrg.indexOf(aCh,pFirst);
//second_--;
String monthStrg = aDateStrg.substring(pFirst,pSecond);
int yearB = pSecond+1;
int yearE = pSecond+5;
String yearStrg = aDateStrg.substring(yearB,yearE);
pSecond=pSecond+6;
int dbp = aDateStrg.indexOf(':');
String hrStrg = aDateStrg.substring(pSecond,dbp);
String minStrg = aDateStrg.substring((dbp+1), aDateStrg.length());
try{
int day = Integer.parseInt(dayStrg);
int month = Integer.parseInt(monthStrg);
int year = Integer.parseInt(yearStrg);
int hour = Integer.parseInt(hrStrg);
int min = Integer.parseInt(minStrg);
return new Date(day,month,year,hour,min);
} catch(NumberFormatException nfe){return null;}
}
/**
* Parse date without hors and minutes out from string
*
* @param aDateStrg source string to parse it
* @param aCh a char.
* @return a {@link net.anotheria.util.Date} object.
*/
public static Date parseShort(String aDateStrg, char aCh){
int pFirst = aDateStrg.indexOf(aCh,0);
if(pFirst < 0)
throw new IllegalArgumentException("Date string wrong format: " + aDateStrg + ". Expected: dd" + aCh + "mm" + aCh + "yyyy");
//first_--;
String dayStrg = aDateStrg.substring(0,pFirst);
pFirst++;
int pSecond = aDateStrg.indexOf(aCh,pFirst);
if(pSecond < 0)
throw new IllegalArgumentException("Date string wrong format: " + aDateStrg + ". Expected: dd" + aCh + "mm" + aCh + "yyyy");
//second_--;
String monthStrg = aDateStrg.substring(pFirst,pSecond);
pSecond++;
String yearStrg = aDateStrg.substring(pSecond,aDateStrg.length());
try{
int day = Integer.parseInt(dayStrg);
int month = Integer.parseInt(monthStrg);
int year = Integer.parseInt(yearStrg);
return new Date(day,month,year);
} catch(NumberFormatException nfe){
throw new IllegalArgumentException("Date string wrong format: " + aDateStrg + ". Expected: dd" + aCh + "mm" + aCh + "yyyy", nfe);
}
}
/**
* toMill.
*
* @return a long.
*/
public long toMill(){
GregorianCalendar cal;
if(this.hour !=-1)
cal = new GregorianCalendar(year, (month-1), day, hour, min);
else
cal = new GregorianCalendar(year, (month-1), day,0,0);
// java.util.Date d = cal.getGregorianChange();
java.util.Date d = cal.getTime();
return d.getTime();
}
/** {@inheritDoc} */
@Override public boolean equals(Object o){
return (o instanceof Date) && ((Date) o).toMill() == toMill();
}
/**
* Getter for the field day.
*
* @return a int.
*/
public int getDay() {
return day;
}
/**
* Getter for the field dayOfWeek.
*
* @return a int.
*/
public int getDayOfWeek() {
return dayOfWeek;
}
/**
* Getter for the field hour.
*
* @return a int.
*/
public int getHour() {
return hour;
}
/**
* Getter for the field min.
*
* @return a int.
*/
public int getMin() {
return min;
}
/**
* Getter for the field month.
*
* @return a int.
*/
public int getMonth() {
return month;
}
/**
* getW_day.
*
* @return a {@link java.lang.String} object.
*/
public String getW_day() {
return wDay;
}
/**
* Getter for the field year.
*
* @return a int.
*/
public int getYear() {
return year;
}
/**
* Returns the ISO8601 timestamp of this date.
*
* @return a {@link java.lang.String} object.
*/
public String toISO8601Timestamp(){
return NumberUtils.makeISO8601TimestampString(toMill());
}
/**
* Returns this date as ISO8601 format.
*
* @return a {@link java.lang.String} object.
*/
public String toISO8601Date(){
return NumberUtils.makeISO8601DateString(toMill());
}
}
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