Package org.apache.dubbo.rpc.cluster.router.condition.matcher

Interface ConditionMatcher

All Known Implementing Classes:

AbstractConditionMatcher, ArgumentConditionMatcher, AttachmentConditionMatcher, UrlParamConditionMatcher

public interface ConditionMatcher

ConditionMatcher represents a specific match condition of a condition rule.

The following condition rule '=barinvalid input: '&arguments'[0]=hello* => region=hangzhou' consists of three ConditionMatchers: 1. UrlParamConditionMatcher represented by 'foo=bar' 2. ArgumentsConditionMatcher represented by 'arguments[0]=hello*' 3. UrlParamConditionMatcher represented by 'region=hangzhou'

It's easy to define your own matcher by extending ConditionMatcherFactory

Method Summary

Modifier and Type	Method	Description
Set<String>	getMatches()	match patterns extracted from when condition
Set<String>	getMismatches()	mismatch patterns extracted from then condition
boolean	isMatch(Map<String,String> sample, org.apache.dubbo.common.URL param, Invocation invocation, boolean isWhenCondition)	Determines if the patterns of this matcher matches with request context.

Method Details

isMatch

boolean isMatch(Map<String,String> sample,
 org.apache.dubbo.common.URL param,
 Invocation invocation,
 boolean isWhenCondition)

Determines if the patterns of this matcher matches with request context.

Parameters:

sample - request context in provider url

param - request context in consumer url

invocation - request context in invocation, typically, service, method, arguments and attachments

isWhenCondition - condition type

Returns:

the matching result

getMatches

Set<String> getMatches()

match patterns extracted from when condition

Returns:

getMismatches

Set<String> getMismatches()

mismatch patterns extracted from then condition

Returns: