AutoScalerPolicy (Brooklyn)

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brooklyn.policy.autoscaling
[Java] Class AutoScalerPolicy

java.lang.Object
  brooklyn.policy.basic.AbstractEntityAdjunct
      brooklyn.policy.basic.AbstractPolicy
          brooklyn.policy.autoscaling.AutoScalerPolicy

@SuppressWarnings({"rawtypes", "unchecked"})
public class AutoScalerPolicy
extends AbstractPolicy

Policy that is attached to a Resizable entity and dynamically adjusts its size in response to emitted POOL_COLD and POOL_HOT events. (This policy does not itself determine whether the pool is hot or cold, but instead relies on these events being emitted by the monitored entity itself, or by another policy that is attached to it; see, for example, LoadBalancingPolicy.)

Nested Class Summary
`static class`	`AutoScalerPolicy.Builder`

Field Summary
`static ConfigKey`	`CURRENT_SIZE_OPERATOR`
`static BasicNotificationSensor`	`DEFAULT_MAX_SIZE_REACHED_SENSOR` A convenience for policies that want to register a `builder.maxSizeReachedSensor(sensor)`.
`static BasicNotificationSensor`	`DEFAULT_POOL_COLD_SENSOR`
`static BasicNotificationSensor`	`DEFAULT_POOL_HOT_SENSOR`
`static BasicNotificationSensor`	`DEFAULT_POOL_OK_SENSOR`
`static ConfigKey`	`ENTITY_WITH_METRIC`
`static ConfigKey`	`MAX_POOL_SIZE`
`static ConfigKey`	`MAX_REACHED_NOTIFICATION_DELAY`
`static ConfigKey`	`MAX_SIZE_REACHED_SENSOR`
`static ConfigKey`	`METRIC`
`static ConfigKey`	`METRIC_LOWER_BOUND`
`static ConfigKey`	`METRIC_UPPER_BOUND`
`static ConfigKey`	`MIN_PERIOD_BETWEEN_EXECS`
`static ConfigKey`	`MIN_POOL_SIZE`
`static ConfigKey`	`POOL_COLD_SENSOR`
`static java.lang.String`	`POOL_CURRENT_SIZE_KEY`
`static java.lang.String`	`POOL_CURRENT_WORKRATE_KEY`
`static java.lang.String`	`POOL_HIGH_THRESHOLD_KEY`
`static ConfigKey`	`POOL_HOT_SENSOR`
`static java.lang.String`	`POOL_LOW_THRESHOLD_KEY`
`static ConfigKey`	`POOL_OK_SENSOR`
`static ConfigKey`	`RESIZE_DOWN_STABILIZATION_DELAY`
`static ConfigKey`	`RESIZE_OPERATOR`
`static ConfigKey`	`RESIZE_UP_STABILIZATION_DELAY`

Fields inherited from class AbstractPolicy
configsInternal, execution, leftoverProperties, policyStatus, suspended

Fields inherited from class AbstractEntityAdjunct
_subscriptionTracker, entity, id, name

Method Summary
`java.lang.Object`	`AutoScalerPolicy()`
`java.lang.Object`	`AutoScalerPolicy(java.util.Map props)`
`static AutoScalerPolicy.Builder`	`builder()`
`protected void`	`doReconfigureConfig(ConfigKey key, java.lang.Object val)`
`void`	`resume()`
`void`	`setEntity(EntityLocal entity)`
`void`	`setMaxPoolSize(int val)`
`void`	`setMetricLowerBound(java.lang.Number val)`
`void`	`setMetricUpperBound(java.lang.Number val)`
`void`	`setMinPeriodBetweenExecs(long val)`
`void`	`setMinPoolSize(int val)`
`void`	`setResizeDownStabilizationDelay(long val)`
`void`	`setResizeUpStabilizationDelay(long val)`
`void`	`suspend()`
`java.lang.String`	`toString()`

Methods inherited from class AbstractPolicy
configure, configure, destroy, doReconfigureConfig, getAllConfig, getConfig, getConfigMap, getPolicyType, getRebindSupport, isRunning, isSuspended, resume, setConfig, suspend, toString

Methods inherited from class AbstractEntityAdjunct
check, destroy, getAllSubscriptions, getId, getManagementContext, getName, getSubscriptionTracker, isDestroyed, isRunning, setEntity, setId, setName, subscribe, subscribeToChildren, subscribeToMembers, unsubscribe, unsubscribe

Field Detail

CURRENT_SIZE_OPERATOR

@SetFromFlag("currentSizeOperator")
public static final ConfigKey CURRENT_SIZE_OPERATOR

DEFAULT_MAX_SIZE_REACHED_SENSOR

public static BasicNotificationSensor DEFAULT_MAX_SIZE_REACHED_SENSOR

A convenience for policies that want to register a builder.maxSizeReachedSensor(sensor). Note that this "default" is not set automatically; the default is for no sensor to be used (so no events emitted).

DEFAULT_POOL_COLD_SENSOR

public static BasicNotificationSensor DEFAULT_POOL_COLD_SENSOR

DEFAULT_POOL_HOT_SENSOR

public static BasicNotificationSensor DEFAULT_POOL_HOT_SENSOR

DEFAULT_POOL_OK_SENSOR

public static BasicNotificationSensor DEFAULT_POOL_OK_SENSOR

ENTITY_WITH_METRIC

@SetFromFlag("entityWithMetric")
public static final ConfigKey ENTITY_WITH_METRIC

MAX_POOL_SIZE

@SetFromFlag("maxPoolSize")
public static final ConfigKey MAX_POOL_SIZE

MAX_REACHED_NOTIFICATION_DELAY

@SetFromFlag("maxReachedNotificationDelay")
public static final ConfigKey MAX_REACHED_NOTIFICATION_DELAY

MAX_SIZE_REACHED_SENSOR

@SetFromFlag("maxSizeReachedSensor")
public static final ConfigKey MAX_SIZE_REACHED_SENSOR

METRIC

@SetFromFlag("metric")
public static final ConfigKey METRIC

METRIC_LOWER_BOUND

@SetFromFlag("metricLowerBound")
public static final ConfigKey METRIC_LOWER_BOUND

METRIC_UPPER_BOUND

@SetFromFlag("metricUpperBound")
public static final ConfigKey METRIC_UPPER_BOUND

MIN_PERIOD_BETWEEN_EXECS

@SetFromFlag("minPeriodBetweenExecs")
public static final ConfigKey MIN_PERIOD_BETWEEN_EXECS

MIN_POOL_SIZE

@SetFromFlag("minPoolSize")
public static final ConfigKey MIN_POOL_SIZE

POOL_COLD_SENSOR

@SetFromFlag("poolColdSensor")
public static final ConfigKey POOL_COLD_SENSOR

POOL_CURRENT_SIZE_KEY

public static final java.lang.String POOL_CURRENT_SIZE_KEY

POOL_CURRENT_WORKRATE_KEY

public static final java.lang.String POOL_CURRENT_WORKRATE_KEY

POOL_HIGH_THRESHOLD_KEY

public static final java.lang.String POOL_HIGH_THRESHOLD_KEY

POOL_HOT_SENSOR

@SetFromFlag("poolHotSensor")
public static final ConfigKey POOL_HOT_SENSOR

POOL_LOW_THRESHOLD_KEY

public static final java.lang.String POOL_LOW_THRESHOLD_KEY

POOL_OK_SENSOR

@SetFromFlag("poolOkSensor")
public static final ConfigKey POOL_OK_SENSOR

RESIZE_DOWN_STABILIZATION_DELAY

@SetFromFlag("resizeDownStabilizationDelay")
public static final ConfigKey RESIZE_DOWN_STABILIZATION_DELAY

RESIZE_OPERATOR

@SetFromFlag("resizeOperator")
public static final ConfigKey RESIZE_OPERATOR

RESIZE_UP_STABILIZATION_DELAY

@SetFromFlag("resizeUpStabilizationDelay")
public static final ConfigKey RESIZE_UP_STABILIZATION_DELAY

Method Detail