Examples of propagation.StateItem

propagation.StateItem
The StateItem interface represents an electrical switch to supervise, e.g., a sensor's component like power supply, sensor unit, network IF, etc. A StateItem is distinguished by item id in the associated parent Node. The state field represents device's state (either it's ok or failure). It has 4 digits.
The first digit represents if the state item is summary (overall status) or not. A summary state item represents the overall status of that node, e.g., if any part of the items are malfucntioning, the summary item may (or may not) show failure (depending on the rule). 1 means physical item and 2 means summary item.
If it is physical item, then the fourth digit signifies whether it is failure or not. 0 means ok, and 1 means failure. The second and third digits represent the state's severity, repsectively. The larger number means the more serious the failure.
If it's summary item, then third and fourth digits represent the state's severity. The severity of 0 means there is no failure overall, e.g., the overall Node is functioning.
```
 1041 : physical failure, severity is 4 1031 : physical failure, severity is 3 2000 : summary state, not failure 2004 : summary is failure, severity is 4 
```
@author y-komori @@org.jboss.cache.aop.InstanceOfAopMarker


      String itemPrefix = prefix + " | ";
      List items = node.getStateItems();
      int size = items.size();
      for (int idx = 0; idx < size; idx++) {
         StateItem item = (StateItem) items.get(idx);
         printStateItem(item, itemPrefix);
      }


      String childPrefix = prefix + " + ";
      List children = node.getChildren();

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   public List getStateItems() {
      return this.stateItems_;
   }


   public StateItem findStateItem(long itemId) {
      StateItem retItem = null;
      int size = stateItems_.size();
      for (int idx = 0; idx < size; idx++) {
         StateItem stateItem = (StateItem) stateItems_.get(idx);
         if (stateItem.getItemId() == itemId) {
            retItem = stateItem;
            break;
         }
      }

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      long maxSeverity = 0;


      List stateItems = node.getStateItems();
      int size = stateItems.size();
      for (int idx = 0; idx < size; idx++) {
         StateItem stateItem = (StateItem) stateItems.get(idx);


         maxSeverity = updateMaxSeverity(maxSeverity, stateItem);
      }


      List childNodes = node.getChildren();
      size = childNodes.size();
      for (int idx = 0; idx < size; idx++) {
         Node child = (Node) childNodes.get(idx);
         StateItem childSummary = child.getSummaryStateItem();


         maxSeverity = updateMaxSeverity(maxSeverity, childSummary);
      }


      long summaryState = STATE_CLEAR + maxSeverity;
      StateItem summaryItem = node.getSummaryStateItem();
      boolean isSummaryChanged = summaryItem.setState(summaryState);


      if (StateItem.STATE_CHANGED == isSummaryChanged) {
         upperPropagate(node);
      }
   }

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import java.util.List;


public abstract class AbstractPropagtionRule implements PropagationRule {
   public void changeState(Node node, long itemId, long state) {
      StateItem target = node.findStateItem(itemId);
      if (target == null) {
         System.out.println("[Error] StateItem not found. : " + node + ":"
                 + itemId);
         return;
      }


      if (StateItem.STATE_CHANGED == target.setState(state)) {
         summaryUpperPropagate(node);
      }
   }

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      Node newNode = new NodeImpl();
      newNode.setNodeFDN(fdn);
      newNode.setNodeRDN(rdn);
      newNode.setPropagationRule(orRule_);


      StateItem summary = new StateItemImpl(0);
      summary.setState(PropagationRule.STATE_CLEAR);
      newNode.setSummaryStateItem(summary);


      registMap(newNode);


      return newNode;

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   }


   public void addStateItem(String parentFdn, long itemId, String name, long defaultState) {
      Node node = findNode(parentFdn);
      if (node != null) {
         StateItem item = new StateItemImpl(itemId);
         item.setState(defaultState);
         item.setName(name);


         node.addStateItem(item);


         PropagationRule rule = node.getPropagationRule();
         rule.summaryUpperPropagate(node);

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Related Classes of propagation.StateItem

propagation.impl.AbstractPropagtionRule

propagation.impl.NodeImpl

propagation.impl.ORSummaryRule

propagation.impl.PropagationManagerImpl

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