Initial commit

src/main/java/util/DateUtils.java

@@ -0,0 +1,44 @@
+package util;
+
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+
+public class DateUtils {
+	public static final String TIMEZONE = "Europe/Amsterdam";
+	protected static TimeZone timeZone;
+	protected static Calendar calendar;
+
+	public static void setTimeZone(String timeZone) {
+		DateUtils.timeZone = TimeZone.getTimeZone(timeZone);
+		calendar = new GregorianCalendar(DateUtils.timeZone);
+	}
+
+	public static long makeTimestamp(int year, int month, int day, int hour, int minute,  int second, int millisecond) {
+		checkCalendar();
+		calendar.set(Calendar.YEAR, year);
+	    calendar.set(Calendar.MONTH, month - 1);
+	    calendar.set(Calendar.DATE, day);
+	    calendar.set(Calendar.HOUR_OF_DAY, hour);
+	    calendar.set(Calendar.MINUTE, minute);
+	    calendar.set(Calendar.SECOND, second);
+	    calendar.set(Calendar.MILLISECOND, millisecond);
+	    return calendar.getTimeInMillis();
+	}
+
+	public static TimeZone getTimeZone() {
+		checkCalendar();
+		return timeZone;
+	}
+
+	public static Calendar getCalendar() {
+		checkCalendar();
+		return calendar;
+	}
+
+	protected static void checkCalendar() {
+		if (calendar == null ) {
+			setTimeZone(TIMEZONE);
+		}
+	}
+}