From 254ee6f47eebfc00462c10756a92066e82cc1a96 Mon Sep 17 00:00:00 2001
From: Andrew Branson <andrew@andrewbranson.net>
Date: Tue, 21 Jun 2011 15:46:02 +0200
Subject: Initial commit

---
 source/com/c2kernel/utils/DateUtility.java | 118 +++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100755 source/com/c2kernel/utils/DateUtility.java

(limited to 'source/com/c2kernel/utils/DateUtility.java')

diff --git a/source/com/c2kernel/utils/DateUtility.java b/source/com/c2kernel/utils/DateUtility.java
new file mode 100755
index 0000000..6e3b569
--- /dev/null
+++ b/source/com/c2kernel/utils/DateUtility.java
@@ -0,0 +1,118 @@
+package com.c2kernel.utils;
+import com.c2kernel.common.GTimeStamp;
+/**
+ * @version $Revision: 1.8 $ $Date: 2005/05/10 15:14:55 $
+ * @author $Author: abranson $
+ */
+public class DateUtility
+{
+	public static GTimeStamp setToNow(GTimeStamp date)
+	{
+		java.util.Calendar now = java.util.Calendar.getInstance();
+		date.mYear = now.get(java.util.Calendar.YEAR);
+		date.mMonth = now.get(java.util.Calendar.MONTH) + 1;
+		date.mDay = now.get(java.util.Calendar.DAY_OF_MONTH);
+		date.mHour = now.get(java.util.Calendar.HOUR_OF_DAY);
+		date.mMinute = now.get(java.util.Calendar.MINUTE);
+		date.mSecond = now.get(java.util.Calendar.SECOND);
+		date.mTimeOffset = now.get(java.util.Calendar.ZONE_OFFSET);
+		return date;
+	}
+
+	public static String getSQLFormat(GTimeStamp timeStamp)
+	{
+		StringBuffer time = new StringBuffer().append(timeStamp.mYear).append("-");
+		if (timeStamp.mMonth < 10)
+			time.append("0");
+		time.append(timeStamp.mMonth).append("-");
+		if (timeStamp.mDay < 10)
+			time.append("0");
+		time.append(timeStamp.mDay).append(" ");
+		if (timeStamp.mHour < 10)
+			time.append("0");
+		time.append(timeStamp.mHour).append(":");
+		if (timeStamp.mMinute < 10)
+			time.append("0");
+		time.append(timeStamp.mMinute).append(":");
+		if (timeStamp.mSecond < 10)
+			time.append("0");
+		time.append(timeStamp.mSecond);
+		return time.toString();
+	}
+    
+    public static int getNbDayInYear(GTimeStamp date)
+    {
+        int centuary = date.mYear / 100;
+        int cdivby4 = centuary / 4;
+        int ydivby4 = date.mYear / 4;
+        if (centuary * 100 - date.mYear == 0)
+        {
+            if (centuary == cdivby4 * 4)
+                return 366;
+            else
+                return 365;
+        }
+        else if (date.mYear == ydivby4 * 4)
+            return 366;
+        else
+            return 365;
+    }
+    public static int getNbDayInMonth(GTimeStamp date)
+    {
+        switch (date.mMonth)
+        {
+            case 2 :
+                if (getNbDayInYear(date) == 365)
+                    return 28;
+                else
+                    return 29;
+            case 4 :
+                return 30;
+            case 6 :
+                return 30;
+            case 9 :
+                return 30;
+            case 11 :
+                return 30;
+            default :
+                return 31;
+        }
+    }
+    
+    public static long diff(GTimeStamp date1, GTimeStamp date2)
+    {
+        GTimeStamp tmp = new GTimeStamp(date1.mYear, date1.mMonth, date1.mDay, date1.mHour, date1.mMinute, date1.mSecond, date1.mTimeOffset);
+        while (tmp.mYear - date2.mYear < 0)
+        {
+            while (tmp.mMonth < 13)
+            {
+                tmp.mDay = tmp.mDay - getNbDayInMonth(tmp);
+                tmp.mMonth++;
+            }
+            tmp.mMonth = 1;
+            tmp.mYear++;
+        }
+        while (tmp.mYear - date2.mYear > 0)
+        {
+            while (tmp.mMonth > 1)
+            {
+                tmp.mMonth--;
+                tmp.mDay = tmp.mDay + getNbDayInMonth(tmp);
+            }
+            tmp.mMonth = 12;
+            tmp.mDay = tmp.mDay + getNbDayInMonth(tmp);
+            tmp.mYear--;
+        }
+        while (tmp.mMonth - date2.mMonth < 0)
+        {
+            tmp.mDay = tmp.mDay - getNbDayInMonth(tmp);
+            tmp.mMonth++;
+        }
+        while (tmp.mMonth - date2.mMonth > 0)
+        {
+            tmp.mMonth--;
+            tmp.mDay = tmp.mDay + getNbDayInMonth(tmp);
+        }
+        return (((tmp.mDay - date2.mDay) * 24 + tmp.mHour - date2.mHour) * 60 + tmp.mMinute - date2.mMinute) * 60 + tmp.mSecond - date2.mSecond;
+    }    
+}
-- 
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