* Add `@Spi` annotation as the general annotation for SPI definition.
* Add isDefault in @Spi, add loadDefaultInstance and improve loadFirstInstanceOrDefault method, improve test cases
* Add SpiLoaderException class for thrown when something goes wrong while loading Provider
* Rearrange packages of base SPI mechanism
NOTE: this PR contains breaking changes regarding API.
* Make slots loaded by SPI, mark all slots with @SpiOrder from -10000 to -1000, improve comment
* Reserve gateway and param slot chain builder (just extends DefaultSlotChainBuilder) and mark them as @Deprecated
- Update the `GatewayParamParser` to support matching the request item.
- Update the internal logic of converting gateway rules to parameter flow rules. The unified mismatched parameters (`SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM`) will be configured as an exception item with a large threshold (indicating always pass).
- Add a `GatewayRegexCache` to cache the compiled regex for performance.
- Constant rename: separate URL matching strategy from parameter matching strategy
Signed-off-by: Eric Zhao <sczyh16@gmail.com>
- Add `getCookieValue` method in RequestItemParser interface and update GatewayParamParser
- Add cookie parsing logic for Spring Cloud Gateway and Zuul
Signed-off-by: Eric Zhao <sczyh16@gmail.com>
- Separate converted parameter rules from ParamFlowManager. Now the converted rules will be kept in GatewayRuleManager directly.
- Add a GatewayFlowSlot to do separate flow checking for generated rules.
- Refactor rule converting mechanism: now gateway rules in normal mode (without parameter) will also be converted to a parameter flow rule. The index will be the last (the last position). In GatewayParamParser we put a constant value to the last position.
Signed-off-by: Eric Zhao <sczyh16@gmail.com>