Package org.apache.helix.model

Examples of org.apache.helix.model.ConstraintItem

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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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    // 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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        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = new PropertyKey.Builder(clusterName);
    constraints =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()));
    Assert.assertNotNull(constraints, "message-constraint should exist");
    ConstraintItem item = constraints.getConstraintItem("constraint1");
    Assert.assertNotNull(item, "message-constraint for constraint1 should exist");
    Assert.assertEquals(item.getConstraintValue(), "1");
    Assert.assertEquals(item.getAttributeValue(ConstraintAttribute.RESOURCE), "MyDB");

    // test admin.getMessageConstraints()
    constraints = tool.getConstraints(clusterName, ConstraintType.MESSAGE_CONSTRAINT);
    Assert.assertNotNull(constraints, "message-constraint should exist");
    item = constraints.getConstraintItem("constraint1");
    Assert.assertNotNull(item, "message-constraint for constraint1 should exist");
    Assert.assertEquals(item.getConstraintValue(), "1");
    Assert.assertEquals(item.getAttributeValue(ConstraintAttribute.RESOURCE), "MyDB");

    // remove a exist message-constraint
    tool.removeConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1");
    constraints =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()));
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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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      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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    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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    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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Related Classes of org.apache.helix.model.ConstraintItem

  • 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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