/* | |
* Licensed to the Apache Software Foundation (ASF) under one or more | |
* contributor license agreements. See the NOTICE file distributed with | |
* this work for additional information regarding copyright ownership. | |
* The ASF licenses this file to You under the Apache License, Version 2.0 | |
* (the "License"); you may not use this file except in compliance with | |
* the License. You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
using System; | |
namespace Apache.NMS.Util | |
{ | |
public class DateUtils | |
{ | |
/// <summary> | |
/// The start of the Windows epoch | |
/// </summary> | |
public static readonly DateTime windowsEpoch = new DateTime(1601, 1, 1, 0, 0, 0, 0); | |
/// <summary> | |
/// The start of the Java epoch | |
/// </summary> | |
public static readonly DateTime javaEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0); | |
/// <summary> | |
/// The difference between the Windows epoch and the Java epoch | |
/// in milliseconds. | |
/// </summary> | |
public static readonly long epochDiff; /* = 1164447360000L; */ | |
static DateUtils() | |
{ | |
epochDiff = (javaEpoch.ToFileTimeUtc() - windowsEpoch.ToFileTimeUtc()) | |
/ TimeSpan.TicksPerMillisecond; | |
} | |
public static long ToJavaTime(DateTime dateTime) | |
{ | |
return (dateTime.ToFileTime() / TimeSpan.TicksPerMillisecond) - epochDiff; | |
} | |
public static DateTime ToDateTime(long javaTime) | |
{ | |
return DateTime.FromFileTime((javaTime + epochDiff) * TimeSpan.TicksPerMillisecond); | |
} | |
public static long ToJavaTimeUtc(DateTime dateTime) | |
{ | |
return (dateTime.ToFileTimeUtc() / TimeSpan.TicksPerMillisecond) - epochDiff; | |
} | |
public static DateTime ToDateTimeUtc(long javaTime) | |
{ | |
return DateTime.FromFileTimeUtc((javaTime + epochDiff) * TimeSpan.TicksPerMillisecond); | |
} | |
} | |
} |