liubao68 commented on a change in pull request #1017: [SCB-1056] put provider
flow control logic in front
URL:
https://github.com/apache/servicecomb-java-chassis/pull/1017#discussion_r238062026
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File path:
common/common-rest/src/main/java/org/apache/servicecomb/common/rest/AbstractRestInvocation.java
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@@ -150,6 +167,39 @@ protected void scheduleInvocation() {
});
}
+ private Holder<Boolean> checkQpsFlowControl(OperationMeta operationMeta) {
+ Holder<Boolean> qpsFlowControlReject = new Holder<>(false);
+ Handler providerQpsFlowControlHandler =
findQpsFlowControlHandler(operationMeta);
+ if (null != providerQpsFlowControlHandler) {
+ try {
+ providerQpsFlowControlHandler.handle(invocation, response -> {
+ qpsFlowControlReject.value = true;
+ produceProcessor = ProduceProcessorManager.JSON_PROCESSOR;
+ sendResponse(response);
+ });
+ } catch (Exception e) {
+ LOGGER.error("failed to execute ProviderQpsFlowControlHandler", e);
+ qpsFlowControlReject.value = true;
+ sendFailResponse(e);
+ }
+ }
+ return qpsFlowControlReject;
Review comment:
I mean "qpsFlowControlReject.value = true;" may executed after this method
return because "handle" is executed async. Although your code works as you
expected in this situation. It's not good code.
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