Make the slot as the SPI interface and add a @Order annotation for define slot order#411

Merged

sczyh30 merged 8 commits intoalibaba:masterfrom cdfive:enhancement/slot-order

Mar 26, 2020

+342-85

Commits on Apr 23, 2019

Merge from master and use @SpiOrder and SpiLoader.loadInstanceListSorted(Class<T> clazz) method.
cdfive
committed

Commits on Jun 9, 2019

Merge from master and fix conflicts
cdfive
committed

Commits on Jan 31, 2020

Commits on Mar 13, 2020

Make GatewayFlowSlot loaded by SPI, mark all slots with @SpiOrder from -10000 to -1000, improve comment
cdfive
committed
Fix SpiLoaderTest test cases
cdfive
committed

Commits on Mar 18, 2020

Reserved gateway and hot param slot chain builder and mark them as @deprecated
cdfive
committed

Commits on Mar 26, 2020

Keep GatewaySlotChainBuilder,HotParamSlotChainBuilder class empty and just extends from DefaultSlotChainBuilder,improve comment
cdfive
committed