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Intercepting Filter

intercepting-filter

/patterns/intercepting-filter/

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Behavioral

Java	Difficulty-Intermediate

Intent

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

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