org.apache.pulsar.broker.service.persistent

Class SubscribeRateLimiter

java.lang.Object

org.apache.pulsar.broker.service.persistent.SubscribeRateLimiter

public class SubscribeRateLimiter
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SubscribeRateLimiter.ConsumerIdentifier

Constructor Summary

Constructors

Constructor and Description
SubscribeRateLimiter(PersistentTopic topic)

Method Summary

Modifier and Type	Method and Description
void	close()
long	getAvailableSubscribeRateLimit(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier) returns available subscribes if subscribe-throttling is enabled else it returns -1
org.apache.pulsar.common.policies.data.SubscribeRate	getPoliciesSubscribeRate() Gets configured subscribe-rate from namespace policies.
static org.apache.pulsar.common.policies.data.SubscribeRate	getPoliciesSubscribeRate(BrokerService brokerService, String topicName)
static org.apache.pulsar.common.policies.data.SubscribeRate	getPoliciesSubscribeRate(String cluster, Optional<org.apache.pulsar.common.policies.data.Policies> policies, String topicName)
org.apache.pulsar.common.policies.data.SubscribeRate	getSubscribeRate()
long	getSubscribeRatePerConsumer(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier) Get configured msg subscribe-throttling rate.
static boolean	isDispatchRateNeeded(BrokerService brokerService, Optional<org.apache.pulsar.common.policies.data.Policies> policies, String topicName)
void	onPoliciesUpdate(org.apache.pulsar.common.policies.data.Policies data)
void	onSubscribeRateUpdate(org.apache.pulsar.common.policies.data.SubscribeRate subscribeRate)
boolean	subscribeAvailable(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier) checks if subscribe-rate limit is configured and if it's configured then check if subscribe are available or not.
boolean	tryAcquire(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier) It acquires subscribe from subscribe-limiter and returns if acquired permits succeed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SubscribeRateLimiter

public SubscribeRateLimiter(PersistentTopic topic)

Method Detail

getAvailableSubscribeRateLimit

public long getAvailableSubscribeRateLimit(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier)

returns available subscribes if subscribe-throttling is enabled else it returns -1

Returns:

tryAcquire

public boolean tryAcquire(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier)

It acquires subscribe from subscribe-limiter and returns if acquired permits succeed.

Returns:

subscribeAvailable

public boolean subscribeAvailable(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier)

checks if subscribe-rate limit is configured and if it's configured then check if subscribe are available or not.

Returns:

onPoliciesUpdate

public void onPoliciesUpdate(org.apache.pulsar.common.policies.data.Policies data)

onSubscribeRateUpdate

public void onSubscribeRateUpdate(org.apache.pulsar.common.policies.data.SubscribeRate subscribeRate)

getPoliciesSubscribeRate

public org.apache.pulsar.common.policies.data.SubscribeRate getPoliciesSubscribeRate()

Gets configured subscribe-rate from namespace policies. Returns null if subscribe-rate is not configured

Returns:

isDispatchRateNeeded

public static boolean isDispatchRateNeeded(BrokerService brokerService,
                                           Optional<org.apache.pulsar.common.policies.data.Policies> policies,
                                           String topicName)

getPoliciesSubscribeRate

public static org.apache.pulsar.common.policies.data.SubscribeRate getPoliciesSubscribeRate(BrokerService brokerService,
                                                                                            String topicName)

getPoliciesSubscribeRate

public static org.apache.pulsar.common.policies.data.SubscribeRate getPoliciesSubscribeRate(String cluster,
                                                                                            Optional<org.apache.pulsar.common.policies.data.Policies> policies,
                                                                                            String topicName)

getSubscribeRatePerConsumer

public long getSubscribeRatePerConsumer(SubscribeRateLimiter.ConsumerIdentifier consumerIdentifier)

Get configured msg subscribe-throttling rate. Returns -1 if not configured

Returns:

close

public void close()

getSubscribeRate

public org.apache.pulsar.common.policies.data.SubscribeRate getSubscribeRate()