Class ValidatingInterceptor

java.lang.Object
io.fluxzero.sdk.tracking.handling.validation.ValidatingInterceptor
All Implemented Interfaces:
HandlerDecorator, HandlerInterceptor
public class ValidatingInterceptor extends Object implements HandlerInterceptor
A HandlerInterceptor that validates the payload of messages before they are handled.

  • Constructor Details

    • ValidatingInterceptor

      public ValidatingInterceptor()
      Creates an interceptor backed by the default validator.

    • ValidatingInterceptor

      public ValidatingInterceptor(Validator validator)
      Creates an interceptor backed by the supplied validator.
      Parameters:
      validator - the validator to use for payload and return value validation

    • ValidatingInterceptor

      public ValidatingInterceptor(Validator validator, boolean validatePayload)
      Creates an interceptor backed by the supplied validator.
      Parameters:
      validator - the validator to use for validation
      validatePayload - whether incoming message payloads should be validated before handler invocation

  • Method Details

    • interceptHandling

      public Function<DeserializingMessage, Object> interceptHandling(Function<DeserializingMessage, Object> function, io.fluxzero.common.handling.HandlerInvoker invoker)
      Wraps handler invocation with payload validation before invocation. Non-passive request handlers with a method annotation also get return value validation when the handler method declares return constraints.
      Specified by:
      interceptHandling in interface HandlerInterceptor
      Parameters:
      function - handler invocation function
      invoker - handler metadata and invocation context
      Returns:
      a validating handler invocation function