Pipes and Filters

Presentation about the pipes and filters architectural style

Transcript

1. Pipes & Filters Arquitectura de Sistemas de Software 2014/2015 Duarte Duarte João Sá Luís Cleto Miguel Marques
2. Components • Filters Connectors • Pipes
3. Data communication Output from one filter is conduit through a pipe and is the input of another filter.
7. Specialization • Pipelines: linear sequence of filters • Bounded pipes:limited amount of data on a pipe • Typed pipes: the data between two filters should have a well-defined type
8. Pros • Simple composition • Reuse (any two filters can be hooked together) • Easily maintained and enhanced • No interactivity • No incremental display updates • Increased complexity • Requires idempotency Cons
9. Example: Function Composition In Haskell: can be turned into effectively creating a filter ‘fn’ from a collection of filters and pipes