| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| Duration |
|
| 2.857142857142857;2.857 |
| 1 | package com.liquidatom.derbyscore.domain; | |
| 2 | ||
| 3 | import java.io.Serializable; | |
| 4 | import java.util.concurrent.TimeUnit; | |
| 5 | import javax.annotation.concurrent.Immutable; | |
| 6 | import javax.annotation.concurrent.ThreadSafe; | |
| 7 | ||
| 8 | /** | |
| 9 | * A basic immutable data structure which holds a scalar and a unit for measuring the duration of time. | |
| 10 | * | |
| 11 | * @author Russell Francis (russ@metro-six.com) | |
| 12 | */ | |
| 13 | 0 | @Immutable |
| 14 | @ThreadSafe | |
| 15 | public class Duration implements Serializable, Comparable<Duration> { | |
| 16 | ||
| 17 | final private long time; | |
| 18 | final private TimeUnit unit; | |
| 19 | ||
| 20 | /** | |
| 21 | * Construct a new Duration instance with the provided length and unit. | |
| 22 | * | |
| 23 | * @param time The number of units of duration this instance will represent. | |
| 24 | * @param unit The unit of time this duration will represent. | |
| 25 | */ | |
| 26 | public Duration(final long time, final TimeUnit unit) { | |
| 27 | 6 | super(); |
| 28 | 6 | if (unit == null) { |
| 29 | 1 | throw new IllegalArgumentException("The parameter unit must be non-null."); |
| 30 | } | |
| 31 | 5 | if (unit.compareTo(TimeUnit.MILLISECONDS) < 0) { |
| 32 | 1 | throw new IllegalArgumentException("The parameter unit must be milliseconds or larger."); |
| 33 | } | |
| 34 | 4 | this.time = time; |
| 35 | 4 | this.unit = unit; |
| 36 | 4 | } |
| 37 | ||
| 38 | /** | |
| 39 | * Get the length represented by this duration. This number will be in the units | |
| 40 | * identified by {@link #getUnit()}. | |
| 41 | * | |
| 42 | * @return The length of this duration. | |
| 43 | */ | |
| 44 | public long getTime() { | |
| 45 | 1 | return time; |
| 46 | } | |
| 47 | ||
| 48 | /** | |
| 49 | * Get the unit that the length of this duration is represented in. | |
| 50 | * | |
| 51 | * @return The unit that the length of this duration is represented in. | |
| 52 | */ | |
| 53 | public TimeUnit getUnit() { | |
| 54 | 74 | return unit; |
| 55 | } | |
| 56 | ||
| 57 | /** | |
| 58 | * Get the length of time represented in milliseconds. | |
| 59 | * | |
| 60 | * @return The length of time represented in milliseconds. | |
| 61 | */ | |
| 62 | public long getTimeInMilliseconds() { | |
| 63 | 19 | long result = time; |
| 64 | ||
| 65 | 19 | if (TimeUnit.DAYS.equals(getUnit())) { |
| 66 | 1 | result *= 24 * 60 * 60 * 1000; |
| 67 | } | |
| 68 | 18 | else if (TimeUnit.HOURS.equals(getUnit())) { |
| 69 | 0 | result *= 60 * 60 * 1000; |
| 70 | } | |
| 71 | 18 | else if (TimeUnit.MINUTES.equals(getUnit())) { |
| 72 | 0 | result *= 60 * 1000; |
| 73 | } | |
| 74 | 18 | else if (TimeUnit.SECONDS.equals(getUnit())) { |
| 75 | 12 | result *= 1000; |
| 76 | } | |
| 77 | 19 | return result; |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * {@inheritDoc} | |
| 82 | */ | |
| 83 | public int compareTo(final Duration o) { | |
| 84 | 9 | long result = getTimeInMilliseconds() - o.getTimeInMilliseconds(); |
| 85 | 9 | return result > 0 ? 1 : result < 0 ? -1 : 0; |
| 86 | } | |
| 87 | ||
| 88 | /** | |
| 89 | * {@inheritDoc} | |
| 90 | */ | |
| 91 | @Override | |
| 92 | public boolean equals(Object o) { | |
| 93 | 0 | if (o != null && o instanceof Duration) { |
| 94 | 0 | Duration that = (Duration)o; |
| 95 | 0 | return getTimeInMilliseconds() == that.getTimeInMilliseconds(); |
| 96 | } | |
| 97 | 0 | return false; |
| 98 | } | |
| 99 | ||
| 100 | /** | |
| 101 | * {@inheritDoc} | |
| 102 | */ | |
| 103 | @Override | |
| 104 | public int hashCode() { | |
| 105 | 0 | long value = getTimeInMilliseconds(); |
| 106 | 0 | return 413 * (int) (value ^ (value >>> 32)); |
| 107 | } | |
| 108 | } |