Package com.peterphi.std.guice.common.breaker

Class BreakerService

java.lang.Object

com.peterphi.std.guice.common.breaker.BreakerService

public class BreakerService
extends Object

Service that returns Breakers that depend on one or more of a group of underlying named breakers.
Current implementation is designed for manual (and therefore low volume) tripping

Constructor Summary

Constructors

Constructor	Description
BreakerService(com.codahale.metrics.MetricRegistry metrics, BreakerPersistStore persist)

Method Summary

Modifier and Type	Method	Description
List<String>	getAllBreakerNames()
TripRecord	getTripRecord(String name)
Breaker	register(Consumer<Boolean> onChange, List<String> names)	Create a new Breaker which trips if any of the named breakers are tripped
void	set(String name, boolean value, String note)	Change the state of a named breaker

Methods inherited from class java.lang.Object

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

Constructor Details

BreakerService

@Inject
public BreakerService(com.codahale.metrics.MetricRegistry metrics,
 BreakerPersistStore persist)

Method Details

register

public Breaker register(Consumer<Boolean> onChange,
 List<String> names)

Create a new Breaker which trips if any of the named breakers are tripped

Parameters:

onChange - a method to call when trip/reset occurs; this method should return quickly

names - the group names (e.g "all", "SomeDaemon", "NonTransactionalDaemons")

Returns:

an isolator that will break if

getAllBreakerNames

public List<String> getAllBreakerNames()

getTripRecord

public TripRecord getTripRecord(String name)

set

public void set(String name,
 boolean value,
 String note)

Change the state of a named breaker

Parameters:

name - the name of the breaker

value - the new state

note - the optional description of why the state has changed