Package edu.vt.rt.hyflow.benchmark.tm.list

Examples of edu.vt.rt.hyflow.benchmark.tm.list.$HY$_Proxy_Node

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  private static final String FRONT = "queue-start";
  private static final String END = "queue-end";
 
  public void createQueue() {
    new _Node(FRONT, -1);  // create the front node
    new _Node(END, -1);    // create the end node
   
    DirectoryManager locator = HyFlow.getLocator();
    _Node front = (_Node)locator.open(FRONT);
    _Node end = (_Node)locator.open(FRONT);
    front.setNext(END);
    end.setNext(FRONT);
  }
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  @Atomic
  public void add(Integer value){
    DirectoryManager locator = HyFlow.getLocator();
    String lastId = null, lastNextId= null;
    _Node end = (_Node)locator.open(END);
    lastId = end.getNext();
    _Node last = (_Node)locator.open(lastId);
    lastNextId = last.getNext();

    String newNodeId =  Network.getInstance().getID() + "-" + Math.random();  // generate random id
    _Node newNode = new _Node(newNodeId, value);
    last.setNext(newNodeId);
    newNode.setNext(lastNextId);
    end.setNext(newNodeId);
  }
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  }

  @Atomic
  public Integer delete(){
    DirectoryManager locator = HyFlow.getLocator();
    _Node front = (_Node)locator.open(FRONT);
    _Node deleteNode;
    String oldNext = front.getNext();
    if(oldNext == END){
      System.out.println("Queue is Empty!!");
      return null;
    }   
    else{
      deleteNode = (_Node)locator.open(oldNext);
      String newNext = deleteNode.getNext();
      front.setNext(newNext);
      String id = (String) deleteNode.getId();
      Integer value  = deleteNode.getValue();
      locator.delete(deleteNode);
      System.out.println("<" + id + "> " + value + "  DELETED....");
      return value;
    }
  }
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  @Atomic
  public boolean find(Integer value){
    DirectoryManager locator = HyFlow.getLocator();
    String next = FRONT;
    do{  // find the last node
      _Node node = (_Node)locator.open(next, "r");
      if(value.equals(node.getValue())){
        System.out.println("Found!");
        return true;
      }
      next = node.getNext();
    }while(next!=END);
    System.out.println("Not Found!");
    return false;
  }
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  public int sum(){
    DirectoryManager locator = HyFlow.getLocator();
    String next = FRONT;
    int sum = 1;  // to avoid -1 value of head sentential node
    do{  // find the last node
      _Node node = (_Node)locator.open(next, "r");
      next = node.getNext();
      sum += node.getValue();
    }while(next!=END);
    return sum;
  }
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