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1 package alice.topology.manager.keeparive;
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2
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3 import alice.codesegment.CodeSegment;
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4 import alice.datasegment.CommandType;
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5 import alice.datasegment.Receiver;
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6
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7 public class RemoveTask extends CodeSegment {
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8 private Receiver info1 = ids.create(CommandType.TAKE); // list
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9 private Receiver info2 = ids.create(CommandType.TAKE); // remove task
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10
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11 public RemoveTask(){
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12 info1.setKey("_WAITINGLIST");
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13 info2.setKey("_REMOVETASK");
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14 }
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15
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16 @Override
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17 public void run() {
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18 ListManager list = info1.asClass(ListManager.class); // explicit cast
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19 TaskInfo task = info2.asClass(TaskInfo.class);
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20 TaskExecuter exec = TaskExecuter.getInstance();
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21 if (exec.compareNowTask(task)){
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22 // case: remove task is state countdown.
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23 exec.skip();
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24 } else {
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25 // case: remove task is still in the waiting queue.
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26 boolean removeFlag = list.deleteTask(task);
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27 if (!removeFlag){
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28 ods.put("_REMOVETASK", task);
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29 }
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30 }
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31 ods.update("_WAITINGLIST", list);
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32 }
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33 }
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