Moving files around

2026-05-22 00:00:03 -04:00 · 2009-11-06 21:26:32 +01:00
parent ba5f0a2f5f
commit 9b615de8ed
86 changed files with 0 additions and 0 deletions
@@ -0,0 +1,210 @@
+/*
+ * Copyright (c) 2008, Harald Kuhr
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name "TwelveMonkeys" nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.twelvemonkeys.lang;
+
+import java.util.Date;
+import java.util.TimeZone;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.text.ParseException;
+
+/**
+ * A utility class with useful date manipulation methods and constants.
+ * <p/>
+ *
+ * @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
+ * @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/lang/DateUtil.java#1 $
+ */
+public final class DateUtil {
+
+    /** One second: 1000 milliseconds. */
+    public static final long SECOND = 1000l;
+
+    /** One minute: 60 seconds (60 000 milliseconds). */
+    public static final long MINUTE = 60l * SECOND;
+
+    /**
+     * One hour: 60 minutes (3 600 000 milliseconds).
+     * 60 minutes = 3 600 seconds = 3 600 000 milliseconds
+     */
+    public static final long HOUR = 60l * MINUTE;
+
+    /**
+     * One day: 24 hours (86 400 000 milliseconds).
+     * 24 hours = 1 440 minutes = 86 400 seconds = 86 400 000 milliseconds.
+     */
+    public static final long DAY = 24l * HOUR;
+
+    /**
+     * One calendar year: 365.2425 days (31556952000 milliseconds).
+     * 365.2425 days = 8765.82 hours = 525949.2 minutes = 31556952 seconds
+     * = 31556952000 milliseconds.
+     */
+    public static final long CALENDAR_YEAR = 3652425l * 24l * 60l * 6l;
+
+    private DateUtil() {
+    }
+
+    /**
+     * Returns the time between the given start time and now (as defined by
+     * {@link System#currentTimeMillis()}).
+     *
+     * @param pStart the start time
+     *
+     * @return the time between the given start time and now.
+     */
+    public static long delta(long pStart) {
+        return System.currentTimeMillis() - pStart;
+    }
+
+    /**
+     * Returns the time between the given start time and now (as defined by
+     * {@link System#currentTimeMillis()}).
+     *
+     * @param pStart the start time
+     *
+     * @return the time between the given start time and now.
+     */
+    public static long delta(Date pStart) {
+        return System.currentTimeMillis() - pStart.getTime();
+    }
+
+    /**
+     * Gets the current time, rounded down to the closest second.
+     * Equivalent to invoking
+     * {@code roundToSecond(System.currentTimeMillis())}.
+     *
+     * @return the current time, rounded to the closest second.
+     */
+    public static long currentTimeSecond() {
+        return roundToSecond(System.currentTimeMillis());
+    }
+
+    /**
+     * Gets the current time, rounded down to the closest minute.
+     * Equivalent to invoking
+     * {@code roundToMinute(System.currentTimeMillis())}.
+     *
+     * @return the current time, rounded to the closest minute.
+     */
+    public static long currentTimeMinute() {
+        return roundToMinute(System.currentTimeMillis());
+    }
+
+    /**
+     * Gets the current time, rounded down to the closest hour.
+     * Equivalent to invoking
+     * {@code roundToHour(System.currentTimeMillis())}.
+     *
+     * @return the current time, rounded to the closest hour.
+     */
+    public static long currentTimeHour() {
+        return roundToHour(System.currentTimeMillis());
+    }
+
+    /**
+     * Gets the current time, rounded down to the closest day.
+     * Equivalent to invoking
+     * {@code roundToDay(System.currentTimeMillis())}.
+     *
+     * @return the current time, rounded to the closest day.
+     */
+    public static long currentTimeDay() {
+        return roundToDay(System.currentTimeMillis());
+    }
+
+    /**
+     * Rounds the given time down to the closest second.
+     *
+     * @param pTime time
+     * @return the time rounded to the closest second.
+     */
+    public static long roundToSecond(long pTime) {
+        return (pTime / SECOND) * SECOND;
+    }
+
+    /**
+     * Rounds the given time down to the closest minute.
+     *
+     * @param pTime time
+     * @return the time rounded to the closest minute.
+     */
+    public static long roundToMinute(long pTime) {
+        return (pTime / MINUTE) * MINUTE;
+    }
+
+    /**
+     * Rounds the given time down to the closest hour, using the default timezone.
+     *
+     * @param pTime time
+     * @return the time rounded to the closest hour.
+     */
+    public static long roundToHour(long pTime) {
+        // TODO: What if timezone offset is sub hour? Are there any? I think so...
+        return ((pTime / HOUR) * HOUR);
+    }
+
+    /**
+     * Rounds the given time down to the closest day, using the default timezone.
+     *
+     * @param pTime time
+     * @return the time rounded to the closest day.
+     */
+    public static long roundToDay(long pTime) {
+        return roundToDay(pTime, TimeZone.getDefault());
+    }
+
+    /**
+     * Rounds the given time down to the closest day, using the given timezone.
+     *
+     * @param pTime time
+     * @param pTimeZone the timezone to use when rounding
+     * @return the time rounded to the closest day.
+     */
+    public static long roundToDay(long pTime, TimeZone pTimeZone) {
+        int offset = pTimeZone.getOffset(pTime);
+        return (((pTime  + offset) / DAY) * DAY) - offset;
+    }
+
+    public static void main(String[] pArgs) throws ParseException {
+        DateFormat format = new SimpleDateFormat("yyyy.MM.dd HH.mm.ss S");
+
+        long time = pArgs.length > 0 ? format.parse(pArgs[0]).getTime() : System.currentTimeMillis();
+
+        System.out.println(time + ": " + format.format(new Date(time)));
+        time = roundToSecond(time);
+        System.out.println(time + ": " + format.format(new Date(time)));
+        time = roundToMinute(time);
+        System.out.println(time + ": " + format.format(new Date(time)));
+        time = roundToHour(time);
+        System.out.println(time + ": " + format.format(new Date(time)));
+        time = roundToDay(time);
+        System.out.println(time + ": " + format.format(new Date(time)));
+    }
+}