org.apache.pulsar.broker.loadbalance.impl

Class BrokerVersionFilter

java.lang.Object

org.apache.pulsar.broker.loadbalance.impl.BrokerVersionFilter

All Implemented Interfaces:

BrokerFilter

public class BrokerVersionFilter
extends Object
implements BrokerFilter

Constructor Summary

Constructors

Constructor and Description
BrokerVersionFilter()

Method Summary

Modifier and Type	Method and Description
void	filter(Set<String> brokers, BundleData bundleToAssign, LoadData loadData, ServiceConfiguration conf) From the given set of available broker candidates, filter those using the version numbers.
com.github.zafarkhaja.semver.Version	getLatestVersionNumber(Set<String> brokers, LoadData loadData) Get the most recent broker version number from the load reports of all the running brokers.

Methods inherited from class java.lang.Object

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

Constructor Detail

BrokerVersionFilter

public BrokerVersionFilter()

Method Detail

getLatestVersionNumber

public com.github.zafarkhaja.semver.Version getLatestVersionNumber(Set<String> brokers,
                                                                   LoadData loadData)
                                                            throws BrokerFilterBadVersionException

Get the most recent broker version number from the load reports of all the running brokers. The version number is from the build artifact in the pom and got added to the package when it was built by Maven

Parameters:

brokers - The brokers to choose the latest version string from.

loadData - The load data from the leader broker (contains the load reports which in turn contain the version string).

Returns:

The most recent broker version

Throws:

BrokerFilterBadVersionException - If the most recent version is undefined (e.g., a bad broker version was encountered or a broker does not have a version string in its load report.

filter

public void filter(Set<String> brokers,
                   BundleData bundleToAssign,
                   LoadData loadData,
                   ServiceConfiguration conf)
            throws BrokerFilterBadVersionException

From the given set of available broker candidates, filter those using the version numbers.

Specified by:

filter in interface BrokerFilter

Parameters:

brokers - The currently available brokers that have not already been filtered.

bundleToAssign - The data for the bundle to assign.

loadData - The load data from the leader broker.

conf - The service configuration.

Throws:

BrokerFilterBadVersionException