slfan1989 commented on code in PR #4594:
URL: https://github.com/apache/hadoop/pull/4594#discussion_r930730069
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/RouterWebServices.java:
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@@ -206,50 +179,20 @@ protected Map<String, RequestInterceptorChainWrapper>
getPipelines() {
*/
@VisibleForTesting
protected RESTRequestInterceptor createRequestInterceptorChain() {
-
- List<String> interceptorClassNames = getInterceptorClassNames(conf);
-
- RESTRequestInterceptor pipeline = null;
- RESTRequestInterceptor current = null;
- for (String interceptorClassName : interceptorClassNames) {
- try {
- Class<?> interceptorClass = conf.getClassByName(interceptorClassName);
- if (RESTRequestInterceptor.class.isAssignableFrom(interceptorClass)) {
- RESTRequestInterceptor interceptorInstance =
- (RESTRequestInterceptor) ReflectionUtils
- .newInstance(interceptorClass, conf);
- if (pipeline == null) {
- pipeline = interceptorInstance;
- current = interceptorInstance;
- continue;
- } else {
- current.setNextInterceptor(interceptorInstance);
- current = interceptorInstance;
- }
- } else {
- throw new YarnRuntimeException(
- "Class: " + interceptorClassName + " not instance of "
- + RESTRequestInterceptor.class.getCanonicalName());
- }
- } catch (ClassNotFoundException e) {
- throw new YarnRuntimeException(
- "Could not instantiate RESTRequestInterceptor: "
- + interceptorClassName,
- e);
- }
- }
-
- if (pipeline == null) {
- throw new YarnRuntimeException(
- "RequestInterceptor pipeline is not configured in the system");
+ try {
+ return RouterServerUtil.createRequestInterceptorChain(conf,
+ YarnConfiguration.ROUTER_WEBAPP_INTERCEPTOR_CLASS_PIPELINE,
+ YarnConfiguration.DEFAULT_ROUTER_WEBAPP_INTERCEPTOR_CLASS,
+ RESTRequestInterceptor.class);
+ } catch (YarnRuntimeException ex) {
+ throw new YarnRuntimeException("Create RequestInterceptor Chain error.",
ex);
Review Comment:
I will modify the code to remove the try catch.
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