[84] | 1 | package com.framsticks.util.dispatching; |
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| 2 | |
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| 3 | import org.apache.log4j.Logger; |
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| 4 | |
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| 5 | import java.util.LinkedList; |
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| 6 | import java.util.ListIterator; |
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[85] | 7 | import com.framsticks.util.dispatching.RunAt; |
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[84] | 8 | |
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| 9 | /** |
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| 10 | * @author Piotr Sniegowski |
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| 11 | */ |
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[85] | 12 | public class Thread<C> implements Dispatcher<C> { |
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[84] | 13 | |
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| 14 | private static final Logger log = Logger.getLogger(Thread.class.getName()); |
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| 15 | |
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| 16 | protected final java.lang.Thread thread; |
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| 17 | |
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[85] | 18 | private final LinkedList<Task<? extends C>> queue = new LinkedList<>(); |
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[84] | 19 | |
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| 20 | public Thread() { |
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[85] | 21 | thread = new java.lang.Thread(new java.lang.Runnable() { |
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[84] | 22 | @Override |
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| 23 | public void run() { |
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| 24 | Thread.this.routine(); |
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| 25 | } |
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| 26 | }); |
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| 27 | } |
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[85] | 28 | |
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[84] | 29 | public Thread(String s) { |
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| 30 | this(); |
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| 31 | thread.setName(s); |
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[85] | 32 | // thread.start(); |
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[84] | 33 | } |
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| 34 | |
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| 35 | public Thread(String s, java.lang.Thread thread) { |
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| 36 | this.thread = thread; |
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| 37 | thread.setName(s); |
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| 38 | } |
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| 39 | |
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[85] | 40 | public Thread<C> start() { |
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| 41 | thread.start(); |
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| 42 | return this; |
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| 43 | } |
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| 44 | |
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[84] | 45 | @Override |
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| 46 | public final boolean isActive() { |
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| 47 | return thread.equals(java.lang.Thread.currentThread()); |
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| 48 | } |
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| 49 | |
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| 50 | protected void routine() { |
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| 51 | while (!java.lang.Thread.interrupted()) { |
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[85] | 52 | Task<? extends C> task; |
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[84] | 53 | synchronized (queue) { |
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| 54 | if (queue.isEmpty()) { |
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| 55 | try { |
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| 56 | queue.wait(); |
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| 57 | } catch (InterruptedException ignored) { |
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| 58 | break; |
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| 59 | } |
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| 60 | continue; |
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| 61 | } |
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| 62 | task = queue.peekFirst(); |
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| 63 | assert task != null; |
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| 64 | if (task.moment > System.currentTimeMillis()) { |
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| 65 | try { |
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| 66 | queue.wait(task.moment - System.currentTimeMillis()); |
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| 67 | } catch (InterruptedException ignored) { |
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| 68 | continue; |
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| 69 | } |
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| 70 | continue; |
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| 71 | } |
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| 72 | queue.pollFirst(); |
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| 73 | } |
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| 74 | try { |
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| 75 | task.run(); |
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| 76 | } catch (Exception e) { |
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| 77 | log.error("error in thread: " + e); |
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| 78 | e.printStackTrace(); |
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| 79 | } |
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| 80 | } |
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| 81 | } |
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| 82 | |
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[85] | 83 | protected void enqueueTask(Task<? extends C> task) { |
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[84] | 84 | synchronized (queue) { |
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[85] | 85 | ListIterator<Task<? extends C>> i = queue.listIterator(); |
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[84] | 86 | while (i.hasNext()) { |
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[85] | 87 | Task<? extends C> t = i.next(); |
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[84] | 88 | if (t.getMoment() > task.getMoment()) { |
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| 89 | i.previous(); |
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| 90 | i.add(task); |
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| 91 | task = null; |
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| 92 | break; |
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| 93 | } |
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| 94 | } |
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| 95 | if (task != null) { |
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| 96 | queue.add(task); |
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| 97 | } |
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| 98 | |
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| 99 | /* |
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| 100 | Iterator<Task> j = queue.iterator(); |
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| 101 | Task prev = null; |
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| 102 | while (j.hasNext()) { |
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| 103 | Task next = j.next(); |
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| 104 | assert (prev == null) || prev.getMoment() <= next.getMoment(); |
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| 105 | prev = next; |
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| 106 | } |
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| 107 | */ |
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| 108 | queue.notify(); |
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| 109 | } |
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| 110 | } |
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| 111 | |
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| 112 | @Override |
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[85] | 113 | public void invokeLater(final RunAt<? extends C> runnable) { |
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[84] | 114 | if (!(runnable instanceof Task)) { |
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[85] | 115 | enqueueTask(new Task<C>() { |
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[84] | 116 | @Override |
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| 117 | public void run() { |
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| 118 | runnable.run(); |
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| 119 | } |
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| 120 | }); |
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| 121 | return; |
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| 122 | } |
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[85] | 123 | enqueueTask((Task<? extends C>) runnable); |
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[84] | 124 | } |
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| 125 | |
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| 126 | public void interrupt() { |
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| 127 | thread.interrupt(); |
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| 128 | } |
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| 129 | |
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| 130 | public void join() throws InterruptedException { |
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| 131 | thread.join(); |
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| 132 | } |
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| 133 | |
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| 134 | public void setName(String name) { |
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| 135 | thread.setName(name); |
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| 136 | |
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| 137 | } |
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[85] | 138 | |
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| 139 | public static boolean interrupted() { |
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| 140 | return java.lang.Thread.interrupted(); |
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| 141 | } |
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[84] | 142 | } |
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