Examples of org.apache.helix.model.ConstraintItem

org.apache.helix.model.ConstraintItem
A single constraint and its associated attributes

    return _constraintValue;
  }


  public ConstraintItem build() {
    // TODO: check if constraint-item is valid
    return new ConstraintItem(_attributes, _constraintValue);
  }

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    ConstraintType type = ConstraintType.valueOf(constraintType);
    ConstraintItemBuilder builder = new ConstraintItemBuilder();
    Map<String, String> constraintAttributes =
        HelixUtil.parseCsvFormatedKeyValuePairs(constraintAttributesMap);
    ConstraintItem constraintItem = builder.addConstraintAttributes(constraintAttributes).build();
    _admin.setConstraint(clusterName, type, constraintId, constraintItem);
  }

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        }
        // add new constraints
        if (deltaConfig.getConstraintMap().containsKey(type)) {
          ClusterConstraints deltaConstraints = deltaConfig.getConstraintMap().get(type);
          for (ConstraintId constraintId : deltaConstraints.getConstraintItems().keySet()) {
            ConstraintItem constraintItem = deltaConstraints.getConstraintItem(constraintId);
            constraints.addConstraintItem(constraintId, constraintItem);
          }
        }
        // remove constraints
        for (ConstraintId constraintId : _removedConstraints.get(type)) {

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        break;
      default:
        LOG.error("Unsupported scope for adding a transition constraint: " + scope);
        return this;
      }
      ConstraintItem item = new ConstraintItemBuilder().addConstraintAttributes(attributes).build();
      ClusterConstraints constraints = getConstraintsInstance(ConstraintType.MESSAGE_CONSTRAINT);
      constraints.addConstraintItem(ConstraintId.from(scope, stateModelDefId, transition), item);
      return this;
    }

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        break;
      default:
        LOG.error("Unsupported scope for adding a state constraint: " + scope);
        return this;
      }
      ConstraintItem item = new ConstraintItemBuilder().addConstraintAttributes(attributes).build();
      ClusterConstraints constraints = getConstraintsInstance(ConstraintType.STATE_CONSTRAINT);
      constraints.addConstraintItem(ConstraintId.from(scope, stateModelDefId, state), item);
      return this;
    }

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    }
    ClusterId clusterId = ClusterId.from(clusterName);
    ClusterAccessor accessor = clusterAccessor(clusterName);
    Map<String, String> constraintAttributes =
        HelixUtil.parseCsvFormatedKeyValuePairs(constraintAttributesMap);
    ConstraintItem item = new ConstraintItem(constraintAttributes);
    ClusterConfig.Delta delta =
        new ClusterConfig.Delta(clusterId).addConstraintItem(
            ConstraintType.valueOf(constraintType), ConstraintId.from(constraintId), item);
    accessor.updateCluster(delta);
  }

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      String key = item.filter(attributes).toString();
      if (!selectedItems.containsKey(key)) {
        selectedItems.put(key, item);
      } else {
        ConstraintItem existingItem = selectedItems.get(key);
        if (existingItem.match(item.getAttributes())) {
          // item is more specific than existingItem
          selectedItems.put(key, item);
        } else if (!item.match(existingItem.getAttributes())) {
          // existingItem and item are of incomparable specificity
          int value = valueOf(item.getConstraintValue());
          int existingValue = valueOf(existingItem.getConstraintValue());
          if (value < existingValue) {
            // item's constraint value is less than that of existingItem
            selectedItems.put(key, item);
          } else if (value == existingValue) {
            if (item.toString().compareTo(existingItem.toString()) < 0) {
              // item is ahead of existingItem in alphabetic order
              selectedItems.put(key, item);
            }
          }
        }

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    // constraint0:
    // "MESSAGE_TYPE=STATE_TRANSITION,CONSTRAINT_VALUE=ANY"
    record.setMapField("constraint0", new TreeMap<String, String>());
    record.getMapField("constraint0").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint0").put("CONSTRAINT_VALUE", "ANY");
    ConstraintItem constraint0 = new ConstraintItem(record.getMapField("constraint0"));


    // constraint1:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,CONSTRAINT_VALUE=ANY"
    record.setMapField("constraint1", new TreeMap<String, String>());
    record.getMapField("constraint1").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint1").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint1").put("CONSTRAINT_VALUE", "50");
    ConstraintItem constraint1 = new ConstraintItem(record.getMapField("constraint1"));


    // constraint2:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=.*,RESOURCE=TestDB,CONSTRAINT_VALUE=2";
    record.setMapField("constraint2", new TreeMap<String, String>());
    record.getMapField("constraint2").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint2").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint2").put("INSTANCE", ".*");
    record.getMapField("constraint2").put("RESOURCE", "TestDB");
    record.getMapField("constraint2").put("CONSTRAINT_VALUE", "2");
    ConstraintItem constraint2 = new ConstraintItem(record.getMapField("constraint2"));


    // constraint3:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=localhost_12918,RESOURCE=.*,CONSTRAINT_VALUE=1";
    record.setMapField("constraint3", new TreeMap<String, String>());
    record.getMapField("constraint3").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint3").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint3").put("INSTANCE", "localhost_1");
    record.getMapField("constraint3").put("RESOURCE", ".*");
    record.getMapField("constraint3").put("CONSTRAINT_VALUE", "1");
    ConstraintItem constraint3 = new ConstraintItem(record.getMapField("constraint3"));


    // constraint4:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=.*,RESOURCE=.*,CONSTRAINT_VALUE=10"
    record.setMapField("constraint4", new TreeMap<String, String>());
    record.getMapField("constraint4").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint4").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint4").put("INSTANCE", ".*");
    record.getMapField("constraint4").put("RESOURCE", ".*");
    record.getMapField("constraint4").put("CONSTRAINT_VALUE", "10");
    ConstraintItem constraint4 = new ConstraintItem(record.getMapField("constraint4"));


    // constraint5:
    // "MESSAGE_TYPE=STATE_TRANSITION,TRANSITION=OFFLINE-SLAVE,INSTANCE=localhost_12918,RESOURCE=TestDB,CONSTRAINT_VALUE=5"
    record.setMapField("constraint5", new TreeMap<String, String>());
    record.getMapField("constraint5").put("MESSAGE_TYPE", "STATE_TRANSITION");
    record.getMapField("constraint5").put("TRANSITION", "OFFLINE-SLAVE");
    record.getMapField("constraint5").put("INSTANCE", "localhost_0");
    record.getMapField("constraint5").put("RESOURCE", "TestDB");
    record.getMapField("constraint5").put("CONSTRAINT_VALUE", "3");
    ConstraintItem constraint5 = new ConstraintItem(record.getMapField("constraint5"));


    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()),
        new ClusterConstraints(record));

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    constraints.put("MESSAGE_TYPE", "STATE_TRANSITION");
    constraints.put("TRANSITION", "OFFLINE-COMPLETED");
    constraints.put("CONSTRAINT_VALUE", "1");
    constraints.put("INSTANCE", ".*");
    manager.getClusterManagmentTool().setConstraint(manager.getClusterName(),
        ConstraintType.MESSAGE_CONSTRAINT, "constraint1", new ConstraintItem(constraints));


    MockAsyncCallback callback = new MockAsyncCallback();
    cr.setInstanceName("localhost_%");
    mapper = new ObjectMapper();
    serializationConfig = mapper.getSerializationConfig();

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    constraints.put("MESSAGE_TYPE", "STATE_TRANSITION");
    constraints.put("TRANSITION", "OFFLINE-COMPLETED");
    constraints.put("CONSTRAINT_VALUE", "1");
    constraints.put("INSTANCE", ".*");
    manager.getClusterManagmentTool().setConstraint(manager.getClusterName(),
        ConstraintType.MESSAGE_CONSTRAINT, "constraint1", new ConstraintItem(constraints));


    // Send scheduler message
    crString = sw.toString();
    schedulerMessage.getRecord().setSimpleField("Criteria", crString);
    manager.getMessagingService().sendAndWait(cr2, schedulerMessage, callback, -1);

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org.apache.helix.api.config.ClusterConfig$Builder

org.apache.helix.api.config.ClusterConfig$Delta

org.apache.helix.controller.stages.MessageThrottleStage

org.apache.helix.controller.stages.TestMessageThrottleStage

org.apache.helix.integration.TestSchedulerMessage

org.apache.helix.manager.zk.TestZkHelixAdmin

org.apache.helix.model.builder.ConstraintItemBuilder

org.apache.helix.tools.ClusterSetup

org.apache.helix.tools.NewClusterSetup

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