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How to Create Two Similar Methods in the Business Layer of a Structured Architecture with Minimal Redundancy?

The structure of my application is layered. The GUI is handled by Controllers, the Controllers each have a Service (which is responsible for business logic). For context, when a button is pressed, there is a method in the Controller that calls the respective method from the Service, in addition to other GUI-related stuff.

My question is, if I need to have the methods "Create copy of excel and open it" and "Only create copy of excel" in Service, how can I minimize the redundancy of the 2 methods?

Also, if I choose to write these 2 methods separately in Service, in the Controller there will also need to exist 2 methods with similar names to those in Service, each of them containing a single line of code that calls the respective method from Service. How can I write this code as clean as possible?

Solution

  • Create two methods:

    CreateCopyOfExcel(/*...*/)

OpenExcel(/*...*/)

    If you want to create a copy of Excel and open it, call both in sequence:

    CreateCopyOfExcel(/*...*/);
OpenExcel(/*...*/);

    If you you only want to create the copy, call only that method:

    CreateCopyOfExcel(/*...*/);