Package org.apache.helix.model

Examples of org.apache.helix.model.ClusterConstraints

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    String path = keyBuilder.constraint(constraintType.toString()).getPath();

    baseAccessor.update(path, new DataUpdater<ZNRecord>() {
      @Override
      public ZNRecord update(ZNRecord currentData) {
        ClusterConstraints constraints =
            currentData == null ? new ClusterConstraints(constraintType) : new ClusterConstraints(
                currentData);

        constraints.addConstraintItem(constraintId, constraintItem);
        return constraints.getRecord();
      }
    }, AccessOption.PERSISTENT);
  }
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    baseAccessor.update(path, new DataUpdater<ZNRecord>() {
      @Override
      public ZNRecord update(ZNRecord currentData) {
        if (currentData != null) {
          ClusterConstraints constraints = new ClusterConstraints(currentData);

          constraints.removeConstraintItem(constraintId);
          return constraints.getRecord();
        }
        return null;
      }
    }, AccessOption.PERSISTENT);
  }
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      throw new IllegalArgumentException(
          "fail to get constraint. missing clusterName|constraintType");
    }

    ConstraintType type = ConstraintType.valueOf(constraintType);
    ClusterConstraints constraints = _admin.getConstraints(clusterName, type);
    ZNRecordSerializer serializer = new ZNRecordSerializer();
    return new String(serializer.serialize(constraints.getRecord()));
  }
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    String path = keyBuilder.constraint(constraintType.toString()).getPath();

    baseAccessor.update(path, new DataUpdater<ZNRecord>() {
      @Override
      public ZNRecord update(ZNRecord currentData) {
        ClusterConstraints constraints =
            currentData == null ? new ClusterConstraints(constraintType) : new ClusterConstraints(
                currentData);

        constraints.addConstraintItem(ConstraintId.from(constraintId), constraintItem);
        return constraints.getRecord();
      }
    }, AccessOption.PERSISTENT);
  }
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    baseAccessor.update(path, new DataUpdater<ZNRecord>() {
      @Override
      public ZNRecord update(ZNRecord currentData) {
        if (currentData != null) {
          ClusterConstraints constraints = new ClusterConstraints(currentData);

          constraints.removeConstraintItem(ConstraintId.from(constraintId));
          return constraints.getRecord();
        }
        return null;
      }
    }, AccessOption.PERSISTENT);
  }
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      throw new IllegalArgumentException(
          "fail to get constraint. missing clusterName|constraintType");
    }

    ConstraintType type = ConstraintType.valueOf(constraintType);
    ClusterConstraints constraints = _admin.getConstraints(clusterName, type);
    ZNRecordSerializer serializer = new ZNRecordSerializer();
    return new String(serializer.serialize(constraints.getRecord()));
  }
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      _cache.setResourceConfigs(resourceConfigs);
      eventName = "resourceConfigChange";
    } else if (path.contains(ConfigScopeProperty.CONSTRAINT.toString())) {
      List<ClusterConstraints> constraints = Lists.newArrayList();
      for (HelixProperty property : configs) {
        constraints.add(new ClusterConstraints(property.getRecord()));
      }
      _cache.setConstraints(constraints);
      eventName = "constraintChange";
    } else {
      logger.warn("Controller received event for unsupported path: " + path);
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    HelixAdmin tool = new ZKHelixAdmin(_zkclient);
    tool.addCluster(clusterName, true);
    Assert.assertTrue(ZKUtil.isClusterSetup(clusterName, _zkclient), "Cluster should be setup");

    // test admin.getMessageConstraints()
    ClusterConstraints constraints =
        tool.getConstraints(clusterName, ConstraintType.MESSAGE_CONSTRAINT);
    Assert.assertNull(constraints, "message-constraint should NOT exist for cluster: " + className);

    // remove non-exist constraint
    try {
      tool.removeConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1");
      // will leave a null message-constraint znode on zk
    } catch (Exception e) {
      Assert.fail("Should not throw exception when remove a non-exist constraint.");
    }

    // add a message constraint
    ConstraintItemBuilder builder = new ConstraintItemBuilder();
    builder.addConstraintAttribute(ConstraintAttribute.RESOURCE.toString(), "MyDB")
        .addConstraintAttribute(ConstraintAttribute.CONSTRAINT_VALUE.toString(), "1");
    tool.setConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1",
        builder.build());

    HelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkclient));
    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(ConstraintId.from("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(ConstraintId.from("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()));
    Assert.assertNotNull(constraints, "message-constraint should exist");
    item = constraints.getConstraintItem(ConstraintId.from("constraint1"));
    Assert.assertNull(item, "message-constraint for constraint1 should NOT exist");

    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
  }
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    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));

    // ClusterConstraints constraint =
    // accessor.getProperty(ClusterConstraints.class,
    // PropertyType.CONFIGS,
    // ConfigScopeProperty.CONSTRAINT.toString(),
    // ConstraintType.MESSAGE_CONSTRAINT.toString());
    ClusterConstraints constraint =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()));

    MessageThrottleStage throttleStage = new MessageThrottleStage();

    // test constraintSelection
    // message1: hit contraintSelection rule1 and rule2
    Message msg1 =
        HelixTestUtil.newMessage(MessageType.STATE_TRANSITION, MessageId.from("msgId-001"),
            "OFFLINE", "SLAVE", "TestDB", "localhost_0");

    Map<ConstraintAttribute, String> msgAttr = ClusterConstraints.toConstraintAttributes(msg1);
    Set<ConstraintItem> matches = constraint.match(msgAttr);
    System.out.println(msg1 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 5);
    Assert.assertTrue(containsConstraint(matches, constraint0));
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint2));
    Assert.assertTrue(containsConstraint(matches, constraint4));
    Assert.assertTrue(containsConstraint(matches, constraint5));

    matches = throttleStage.selectConstraints(matches, msgAttr);
    System.out.println(msg1 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 2);
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint5));

    // message2: hit contraintSelection rule1, rule2, and rule3
    Message msg2 =
        HelixTestUtil.newMessage(MessageType.STATE_TRANSITION, MessageId.from("msgId-002"),
            "OFFLINE", "SLAVE", "TestDB", "localhost_1");

    msgAttr = ClusterConstraints.toConstraintAttributes(msg2);
    matches = constraint.match(msgAttr);
    System.out.println(msg2 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 5);
    Assert.assertTrue(containsConstraint(matches, constraint0));
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint2));
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    }

    MessageOutput output = new MessageOutput();

    // TODO fix it
    ClusterConstraints constraint = cluster.getConstraint(ConstraintType.MESSAGE_CONSTRAINT);
    Map<String, Integer> throttleCounterMap = new HashMap<String, Integer>();

    if (constraint != null) {
      // go through all pending messages, they should be counted but not throttled
      for (ParticipantId participantId : cluster.getLiveParticipantMap().keySet()) {
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Related Classes of org.apache.helix.model.ClusterConstraints

  • org.apache.helix.api.accessor.ClusterAccessor
  • org.apache.helix.api.config.ClusterConfig
  • org.apache.helix.api.config.ClusterConfig$Builder
  • org.apache.helix.api.config.ClusterConfig$Delta
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.stages.MessageThrottleStage
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.manager.zk.TestZkHelixAdmin
  • org.apache.helix.manager.zk.ZKHelixAdmin
  • org.apache.helix.model.builder.ClusterConstraintsBuilder
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