| /* |
| * 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. |
| */ |
| |
| package org.apache.yoko.orb.OB; |
| |
| import org.omg.CORBA.*; |
| import org.omg.TimeBase.*; |
| |
| // |
| // This is a simpler set of functions to work with TimeBase::UtcT, and |
| // TimeBase::TimeT values. |
| // |
| // The Time Service uses units of 100 nanoseconds and a base time |
| // of 15 October 1582 00:00:00. |
| // |
| public class TimeHelper { |
| // |
| // 100 nanoseconds = 10^-7 seconds and 1 millisecond = 10^-3 seconds, |
| // hence there are 10^4 (10,000) milliseconds per 100 nanoseconds. |
| // |
| private final static long HNanosPerMilli = 10000L; |
| |
| // |
| // 100 ns units from 15 October 1582 00:00:00 to 1 January 1970 00:00:00. |
| // |
| // Time difference in 100 ns units between DCE and POSIX time base. |
| // 141427 days with 86400 seconds each. |
| // |
| private final static long DCEToPosix = 141427L * 86400L * HNanosPerMilli * 1000; |
| |
| // |
| // Max TimeT value |
| // |
| public final static long MaxTimeT = 0xffffffffffffffffL; |
| |
| // |
| // Max InaccuracyT value |
| // |
| public final static long MaxInaccuracyT = 0xffffffffffffL; |
| |
| public static UtcT utcNow(long inaccuracy) { |
| if (Unsigned.gt(inaccuracy, MaxInaccuracyT)) |
| throw new BAD_PARAM(); |
| |
| long time = Unsigned.add(Unsigned.multiply(System.currentTimeMillis(), |
| HNanosPerMilli), DCEToPosix); |
| java.util.Calendar cal = java.util.Calendar.getInstance(); |
| int offset = cal.get(java.util.Calendar.ZONE_OFFSET) |
| + cal.get(java.util.Calendar.DST_OFFSET); |
| |
| return toUtcT(time, inaccuracy, (short) (offset / 60000)); |
| } |
| |
| public static UtcT utcMin() { |
| java.util.Calendar cal = java.util.Calendar.getInstance(); |
| int offset = cal.get(java.util.Calendar.ZONE_OFFSET) |
| + cal.get(java.util.Calendar.DST_OFFSET); |
| |
| return toUtcT(0, 0, (short) (offset / 60000)); |
| } |
| |
| public static UtcT utcMax() { |
| java.util.Calendar cal = java.util.Calendar.getInstance(); |
| int offset = cal.get(java.util.Calendar.ZONE_OFFSET) |
| + cal.get(java.util.Calendar.DST_OFFSET); |
| |
| return toUtcT(MaxTimeT, 0, (short) (offset / 60000)); |
| } |
| |
| public static long toJavaMillis(UtcT utc) { |
| return toJavaMillis(utc.time); |
| } |
| |
| public static long toJavaMillis(long time) { |
| if (Unsigned.lt(time, DCEToPosix)) |
| return 0; |
| |
| return Unsigned.divide(Unsigned.subtract(time, DCEToPosix), |
| HNanosPerMilli); |
| } |
| |
| public static IntervalT toIntervalT(long time, long inaccuracy) { |
| IntervalT inter = new IntervalT(); |
| |
| if (Unsigned.lt(time, inaccuracy)) |
| inter.lower_bound = 0; |
| else |
| inter.lower_bound = Unsigned.subtract(time, inaccuracy); |
| |
| if (Unsigned.lt(Unsigned.subtract(MaxTimeT, time), inaccuracy)) |
| inter.upper_bound = MaxTimeT; |
| else |
| inter.upper_bound = Unsigned.add(time, inaccuracy); |
| |
| return inter; |
| } |
| |
| public static UtcT toUtcT(long time, long inaccuracy, short tdf) { |
| UtcT utc = new UtcT(); |
| |
| utc.time = time; |
| utc.tdf = tdf; |
| utc.inacclo = (int) (inaccuracy & 0xffffffffL); |
| utc.inacchi = (short) ((inaccuracy >> 32L) & 0xffffL); |
| |
| return utc; |
| } |
| |
| public static UtcT toUtcT(long time, long inaccuracy) { |
| return toUtcT(time, inaccuracy, (short) 0); |
| } |
| |
| public static UtcT toUtcT(IntervalT inter) { |
| // |
| // Note that "time = (upper_ + lower_) / 2" may cause overflow. |
| // |
| long inaccuracy = Unsigned.divide(Unsigned.subtract(inter.upper_bound, |
| inter.lower_bound), 2); |
| long time = Unsigned.add(inter.lower_bound, inaccuracy); |
| |
| return toUtcT(time, inaccuracy); |
| } |
| |
| public static String toString(UtcT time) { |
| if (Unsigned.lt(time.time, DCEToPosix)) |
| return "Time less than 1 January 1970 00:00:00"; |
| |
| // |
| // Get local time |
| // |
| long milliTime = Unsigned.add(toJavaMillis(time), time.tdf * 60000); |
| |
| // |
| // Convert to string |
| // |
| java.text.SimpleDateFormat date = new java.text.SimpleDateFormat( |
| "MM/dd/yy HH:mm:ss:SSS"); |
| date.setTimeZone(java.util.TimeZone.getTimeZone("GMT")); |
| return date.format(new java.util.Date(milliTime)); |
| } |
| |
| public static String toTimeString(UtcT time) { |
| if (Unsigned.lt(time.time, DCEToPosix)) |
| return "Time less than 1 January 1970 00:00:00"; |
| |
| // |
| // Get local time |
| // |
| long milliTime = Unsigned.add(toJavaMillis(time), time.tdf * 60000); |
| |
| // |
| // Convert to string |
| // |
| java.text.SimpleDateFormat date = new java.text.SimpleDateFormat( |
| "HH:mm:ss:SSS"); |
| date.setTimeZone(java.util.TimeZone.getTimeZone("GMT")); |
| return date.format(new java.util.Date(milliTime)); |
| } |
| |
| public static String toString(long time) { |
| long milliTime = Unsigned.divide(time, 10000L); |
| |
| long sec = Unsigned.divide(milliTime, 1000); |
| long msec = Unsigned.mod(milliTime, 1000); |
| |
| String ret = Long.toString(sec) + ":"; |
| if (msec < 10) |
| ret = ret + "00"; |
| else if (msec < 100) |
| ret = ret + "0"; |
| ret = ret + Long.toString(msec); |
| |
| return ret; |
| } |
| |
| public static boolean lessThan(UtcT a, UtcT b) { |
| return Unsigned.lt(a.time, b.time); |
| } |
| |
| public static boolean lessThanEqual(UtcT a, UtcT b) { |
| return Unsigned.lteq(a.time, b.time); |
| } |
| |
| public static boolean greaterThan(UtcT a, UtcT b) { |
| return Unsigned.gt(a.time, b.time); |
| } |
| |
| public static boolean greaterThanEqual(UtcT a, UtcT b) { |
| return Unsigned.gteq(a.time, b.time); |
| } |
| |
| public static boolean equal(UtcT a, UtcT b) { |
| return a.time == b.time; |
| } |
| |
| public static boolean notEqual(UtcT a, UtcT b) { |
| return a.time != b.time; |
| } |
| |
| public static UtcT add(UtcT a, long t) { |
| UtcT b = new UtcT(a.time, a.inacclo, a.inacchi, a.tdf); |
| |
| if (Unsigned.lt(Unsigned.subtract(MaxTimeT, b.time), t)) |
| b.time = MaxTimeT; |
| else |
| b.time = Unsigned.add(b.time, t); |
| |
| return b; |
| } |
| |
| public static UtcT add(long t, UtcT a) { |
| return add(a, t); |
| } |
| |
| public static UtcT subtract(UtcT a, long t) { |
| UtcT b = new UtcT(a.time, a.inacclo, a.inacchi, a.tdf); |
| |
| if (Unsigned.lt(b.time, t)) |
| b.time = 0; |
| else |
| b.time = Unsigned.subtract(b.time, t); |
| |
| return b; |
| } |
| } |
