upd: rename package name and all references to it

[gigi.git] / src / club / wpia / gigi / util / CalendarUtil.java

diff --git a/src/club/wpia/gigi/util/CalendarUtil.java b/src/club/wpia/gigi/util/CalendarUtil.java
new file mode 100644 (file)
index 0000000..6ff7bb2
--- /dev/null
+++ b/src/club/wpia/gigi/util/CalendarUtil.java
@@ -0,0 +1,45 @@
+package club.wpia.gigi.util;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+
+public class CalendarUtil {
+
+    public static boolean isDateValid(int year, int month, int day) {
+
+        Calendar c = GregorianCalendar.getInstance();
+        c.set(year, month - 1, day);
+        return c.get(Calendar.YEAR) == year && c.get(Calendar.MONTH) == month - 1 && c.get(Calendar.DATE) == day;
+
+    }
+
+    public static boolean isOfAge(DayDate dob, int age) {
+        Calendar c = Calendar.getInstance();
+        c.setTimeInMillis(dob.getTime());
+        int year = c.get(Calendar.YEAR);
+        int month = c.get(Calendar.MONTH);
+        int day = c.get(Calendar.DAY_OF_MONTH);
+        c.set(year, month, day);
+        c.add(Calendar.YEAR, age);
+
+        return System.currentTimeMillis() >= c.getTime().getTime();
+    }
+
+    public static DayDate getDateFromComponents(int year, int month, int day) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTimeZone(TimeZone.getTimeZone("UTC"));
+        cal.setTimeInMillis(0);
+        cal.set(year, month - 1, day, 0, 0, 0);
+        Date dob = cal.getTime();
+        return new DayDate(dob.getTime());
+    }
+
+    public static Date timeDifferenceDays(int days) {
+        Calendar c = Calendar.getInstance();
+        c.setTimeInMillis(System.currentTimeMillis());
+        c.add(Calendar.DAY_OF_MONTH, days);
+        return c.getTime();
+    }
+}