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Intercepting Filter

Difficulty-Intermediate Java Behavioral

Intent

Provide pluggable filters to conduct necessary pre-processing and post-processing to requests from a client to a target

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Applicability

Use the Intercepting Filter pattern when

  • a system uses pre-processing or post-processing requests
  • a system should do the authentication/ authorization/ logging or tracking of request and then pass the requests to corresponding handlers
  • you want a modular approach to configuring pre-processing and post-processing schemes

Real world examples

Credits