| 1 | package br.org.agilcoop.cursos.testes.unidade.timer; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.List; |
| 5 | |
| 6 | public class Timer { |
| 7 | public enum TimerState { |
| 8 | RUNNING(1), |
| 9 | STOPPED(2), |
| 10 | FINISHED(3); |
| 11 | |
| 12 | int state; |
| 13 | |
| 14 | private TimerState(int state) { |
| 15 | this.state = state; |
| 16 | } |
| 17 | } |
| 18 | |
| 19 | @SuppressWarnings("unused") |
| 20 | private class SleepingThread extends Thread { |
| 21 | private long startTime; |
| 22 | private long sleepTime; |
| 23 | private long elapsedTime; |
| 24 | |
| 25 | private SleepingThread(long sleepTime) { |
| 26 | this.sleepTime = sleepTime; |
| 27 | } |
| 28 | |
| 29 | public void run() { |
| 30 | startTime = System.currentTimeMillis(); |
| 31 | try { |
| 32 | Thread.sleep(sleepTime); |
| 33 | elapsedTime = sleepTime; |
| 34 | // Parent |
| 35 | finalizou(); |
| 36 | } catch (InterruptedException e) { |
| 37 | elapsedTime = System.currentTimeMillis() - startTime; |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | public long elapsed() { |
| 42 | if(isAlive()) |
| 43 | return System.currentTimeMillis() - startTime; |
| 44 | return elapsedTime; |
| 45 | } |
| 46 | |
| 47 | } |
| 48 | |
| 49 | private long totalInMiliseconds; |
| 50 | private TimerState state = TimerState.STOPPED; |
| 51 | private SleepingThread thread; |
| 52 | private long elapsed; |
| 53 | private final List<Event> events = new ArrayList<Event>(); |
| 54 | |
| 55 | public Timer(int hours, int minutes, int seconds) { |
| 56 | if(hours < 0 || minutes < 0 || seconds < 0) |
| 57 | throw new IllegalArgumentException("must be positive"); |
| 58 | adjust(hours, minutes, seconds); |
| 59 | } |
| 60 | |
| 61 | public Timer() { |
| 62 | this(0, 0, 0); |
| 63 | } |
| 64 | |
| 65 | public void adjust(int hours, int minutes, int seconds) { |
| 66 | long totalInSeconds = metodoDaRefatoracao(hours, minutes, seconds); |
| 67 | totalInMiliseconds = totalInSeconds * 1000; |
| 68 | stop(); |
| 69 | } |
| 70 | |
| 71 | public long metodoDaRefatoracao(int hours, int minutes, int seconds) { |
| 72 | return (hours * 3600) + (minutes * 60) + seconds; |
| 73 | } |
| 74 | |
| 75 | private void finalizou() { |
| 76 | state = TimerState.FINISHED; |
| 77 | elapsed = totalInMiliseconds; |
| 78 | for (final Event event : events) { |
| 79 | final Timer timer = this; |
| 80 | try { |
| 81 | new Thread(new Runnable() { |
| 82 | public void run() { |
| 83 | event.executa(timer); |
| 84 | } |
| 85 | }).start(); |
| 86 | } catch(Exception e) { |
| 87 | e.printStackTrace(); |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | synchronized public void start() { |
| 93 | if(state == TimerState.STOPPED) { |
| 94 | state = TimerState.RUNNING; |
| 95 | thread = new SleepingThread(totalInMiliseconds - elapsed); |
| 96 | thread.start(); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | synchronized public void pause() { |
| 101 | if(state == TimerState.RUNNING) { |
| 102 | state = TimerState.STOPPED; |
| 103 | elapsed += thread.elapsed(); |
| 104 | thread.interrupt(); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | synchronized public void stop() { |
| 109 | if(state == TimerState.RUNNING) thread.interrupt(); |
| 110 | state = TimerState.STOPPED; |
| 111 | elapsed = 0; |
| 112 | } |
| 113 | |
| 114 | public long total() { |
| 115 | return totalInMiliseconds; |
| 116 | } |
| 117 | |
| 118 | public synchronized long elapsed() { |
| 119 | if(state == TimerState.RUNNING) |
| 120 | return elapsed + thread.elapsed(); |
| 121 | else |
| 122 | return elapsed; |
| 123 | } |
| 124 | |
| 125 | public String elapsedFormatted() { |
| 126 | return timerDefaultFormat((int) elapsed() / 1000); |
| 127 | } |
| 128 | |
| 129 | public String totalFormatted() { |
| 130 | return timerDefaultFormat((int) total() / 1000); |
| 131 | } |
| 132 | |
| 133 | public static String timerDefaultFormat(int totalOfSeconds) { |
| 134 | int hours = totalOfSeconds / 3600; |
| 135 | int minutes = (totalOfSeconds % 3600) / 60; |
| 136 | int seconds = (totalOfSeconds % 3600) % 60; |
| 137 | StringBuilder builder = new StringBuilder(); |
| 138 | if(hours < 10) builder.append("0"); |
| 139 | builder.append(hours + ":"); |
| 140 | if(minutes < 10) builder.append("0"); |
| 141 | builder.append(minutes + ":"); |
| 142 | if(seconds < 10) builder.append("0"); |
| 143 | builder.append(seconds); |
| 144 | return builder.toString(); |
| 145 | } |
| 146 | |
| 147 | public TimerState state() { |
| 148 | return state; |
| 149 | } |
| 150 | |
| 151 | public boolean running() { |
| 152 | return state == TimerState.RUNNING; |
| 153 | } |
| 154 | |
| 155 | public boolean stopped() { |
| 156 | return ! running(); |
| 157 | } |
| 158 | |
| 159 | public boolean finished() { |
| 160 | return state == TimerState.FINISHED; |
| 161 | } |
| 162 | |
| 163 | public void addEvent(Event event) { |
| 164 | if(event != null) |
| 165 | events.add(event); |
| 166 | } |
| 167 | |
| 168 | public void removeEvent(Event event) { |
| 169 | if(event != null) |
| 170 | events.remove(event); |
| 171 | } |
| 172 | |
| 173 | } |