com.alibaba.csp.sentinel.slots.block.degrade

Class DegradeRuleManager

java.lang.Object

com.alibaba.csp.sentinel.slots.block.degrade.DegradeRuleManager

public final class DegradeRuleManager
extends Object

The rule manager for circuit breaking rules (DegradeRule).

Author:

youji.zj, jialiang.linjl, Eric Zhao

Constructor Summary

Constructors

Constructor and Description
DegradeRuleManager()

Method Summary

Modifier and Type	Method and Description
static List<DegradeRule>	getRules() Get existing circuit breaking rules.
static Set<DegradeRule>	getRulesOfResource(String resource)
static boolean	hasConfig(String resource)
static boolean	isValidRule(DegradeRule rule)
static void	loadRules(List<DegradeRule> rules) Load DegradeRules, former rules will be replaced.
static void	register2Property(SentinelProperty<List<DegradeRule>> property) Listen to the SentinelProperty for DegradeRules.
static boolean	setRulesForResource(String resourceName, Set<DegradeRule> rules) Set degrade rules for provided resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

DegradeRuleManager

public DegradeRuleManager()

Method Detail

register2Property

public static void register2Property(SentinelProperty<List<DegradeRule>> property)

Listen to the SentinelProperty for DegradeRules. The property is the source of DegradeRules. Degrade rules can also be set by loadRules(List) directly.

Parameters:

property - the property to listen.

hasConfig

public static boolean hasConfig(String resource)

getRules

public static List<DegradeRule> getRules()

Get existing circuit breaking rules.

Note: DO NOT modify the rules from the returned list directly. The behavior is undefined.

Returns:

list of existing circuit breaking rules, or empty list if no rules were loaded

getRulesOfResource

public static Set<DegradeRule> getRulesOfResource(String resource)

loadRules

public static void loadRules(List<DegradeRule> rules)

Load DegradeRules, former rules will be replaced.

Parameters:

rules - new rules to load.

setRulesForResource

public static boolean setRulesForResource(String resourceName,
                                          Set<DegradeRule> rules)

Set degrade rules for provided resource. Former rules of the resource will be replaced.

Parameters:

resourceName - valid resource name

rules - new rule set to load

Returns:

whether the rules has actually been updated

Since:

1.5.0

isValidRule

public static boolean isValidRule(DegradeRule rule)