| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.router.webapp | Router WebApp package. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AbstractRESTRequestInterceptorExtends the RequestInterceptor class and provides common functionality which
 can be used and/or extended by other concrete intercepter classes. | 
| class  | DefaultRequestInterceptorRESTExtends the AbstractRequestInterceptorClient class and provides an
 implementation that simply forwards the client requests to the resource
 manager. | 
| class  | FederationInterceptorRESTExtends the  AbstractRESTRequestInterceptorclass and provides an
 implementation for federation of YARN RM and scaling an application across
 multiple YARN SubClusters. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected RESTRequestInterceptor | RouterWebServices. createRequestInterceptorChain()This method creates and returns reference of the first intercepter in the
 chain of request intercepter instances. | 
| RESTRequestInterceptor | RESTRequestInterceptor. getNextInterceptor()Returns the next intercepter in the chain. | 
| RESTRequestInterceptor | AbstractRESTRequestInterceptor. getNextInterceptor()Gets the next  RESTRequestInterceptorin the chain. | 
| RESTRequestInterceptor | RouterWebServices.RequestInterceptorChainWrapper. getRootInterceptor()Gets the root request intercepter. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | RouterWebServices.RequestInterceptorChainWrapper. init(RESTRequestInterceptor interceptor)Initializes the wrapper with the specified parameters. | 
| void | RESTRequestInterceptor. setNextInterceptor(RESTRequestInterceptor nextInterceptor)Sets the next intercepter in the pipeline. | 
| void | AbstractRESTRequestInterceptor. setNextInterceptor(RESTRequestInterceptor nextInterceptor)Sets the  RESTRequestInterceptorin the chain. | 
| void | FederationInterceptorREST. setNextInterceptor(RESTRequestInterceptor next) | 
| void | DefaultRequestInterceptorREST. setNextInterceptor(RESTRequestInterceptor next) | 
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