com.alibaba.csp.sentinel.slots.block.flow

Class FlowRuleUtil

java.lang.Object

com.alibaba.csp.sentinel.slots.block.flow.FlowRuleUtil

public final class FlowRuleUtil
extends Object

Since:

1.4.0

Author:

Eric Zhao

Method Summary

Modifier and Type	Method and Description
static Map<String,List<FlowRule>>	buildFlowRuleMap(List<FlowRule> list) Build the flow rule map from raw list of flow rules, grouping by resource name.
static <K> Map<K,List<FlowRule>>	buildFlowRuleMap(List<FlowRule> list, Function<FlowRule,K> groupFunction, Predicate<FlowRule> filter, boolean shouldSort) Build the flow rule map from raw list of flow rules, grouping by provided group function.
static Map<String,List<FlowRule>>	buildFlowRuleMap(List<FlowRule> list, Predicate<FlowRule> filter) Build the flow rule map from raw list of flow rules, grouping by resource name.
static Map<String,List<FlowRule>>	buildFlowRuleMap(List<FlowRule> list, Predicate<FlowRule> filter, boolean shouldSort) Build the flow rule map from raw list of flow rules, grouping by resource name.
static boolean	checkClusterConcurrentField(FlowRule rule)
static boolean	isValidRule(FlowRule rule) Check whether provided flow rule is valid.
static boolean	isWindowConfigValid(int sampleCount, int windowIntervalMs)
static boolean	validClusterRuleId(Long id) Check whether provided ID can be a valid cluster flow ID.

Methods inherited from class java.lang.Object

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

Method Detail

buildFlowRuleMap

public static Map<String,List<FlowRule>> buildFlowRuleMap(List<FlowRule> list)

Build the flow rule map from raw list of flow rules, grouping by resource name.

Parameters:

list - raw list of flow rules

Returns:

constructed new flow rule map; empty map if list is null or empty, or no valid rules

buildFlowRuleMap

public static Map<String,List<FlowRule>> buildFlowRuleMap(List<FlowRule> list,
                                                          Predicate<FlowRule> filter)

Build the flow rule map from raw list of flow rules, grouping by resource name.

Parameters:

list - raw list of flow rules

filter - rule filter

Returns:

constructed new flow rule map; empty map if list is null or empty, or no wanted rules

buildFlowRuleMap

public static Map<String,List<FlowRule>> buildFlowRuleMap(List<FlowRule> list,
                                                          Predicate<FlowRule> filter,
                                                          boolean shouldSort)

Build the flow rule map from raw list of flow rules, grouping by resource name.

Parameters:

list - raw list of flow rules

filter - rule filter

shouldSort - whether the rules should be sorted

Returns:

constructed new flow rule map; empty map if list is null or empty, or no wanted rules

buildFlowRuleMap

public static <K> Map<K,List<FlowRule>> buildFlowRuleMap(List<FlowRule> list,
                                                         Function<FlowRule,K> groupFunction,
                                                         Predicate<FlowRule> filter,
                                                         boolean shouldSort)

Build the flow rule map from raw list of flow rules, grouping by provided group function.

Type Parameters:

K - type of key

Parameters:

list - raw list of flow rules

groupFunction - grouping function of the map (by key)

filter - rule filter

shouldSort - whether the rules should be sorted

Returns:

constructed new flow rule map; empty map if list is null or empty, or no wanted rules

validClusterRuleId

public static boolean validClusterRuleId(Long id)

Check whether provided ID can be a valid cluster flow ID.

Parameters:

id - flow ID to check

Returns:

true if valid, otherwise false

isValidRule

public static boolean isValidRule(FlowRule rule)

Check whether provided flow rule is valid.

Parameters:

rule - flow rule to check

Returns:

true if valid, otherwise false

checkClusterConcurrentField

public static boolean checkClusterConcurrentField(FlowRule rule)

isWindowConfigValid

public static boolean isWindowConfigValid(int sampleCount,
                                          int windowIntervalMs)