Extract Interface

It's a test task for the Fall 2021 Practice in JetBrains of the team Full Line Code Completion.

The main purpose of this project is to extract methods from a class with specific information, like a name or an access modifier. What is supported now will be described below.

Supported languages

Now there are two languages: Kotlin and Java. However, you cannot construct an interface in Kotlin, but you can extract methods from it. Also, it's possible to extract methods from Kotlin and construct an interface in Java.

Supported options

You can pass some options for extracting methods in the command line:

-inputPath: a path to an input class. You MUST pass this option.
-outputPath: a path to an output interface. By default, it's path/to/input/directory/$interfaceName.extension.
-inputLanguage: a language for an input class. By default, it's Java. Ignores case.
-outputLanguage: a language for an output interface. By default, it's Java. Ignores case.
-className: a name for an input class. By default, it's a name of an input file (without extension).
-interfaceName: a name for an output interface. By default, it's classnameInterface.
-whitelist: if a method name is in this list, it is extracted. By default, all methods are in the list. You can check out the list format after this options enumeration.
-blacklist: if a method name is in this list, it isn't extracted. By default, all methods aren't in the list.
-accessModifier: only methods with this access modifier are extracted. By default, it's public. Ignores case.

It's the list format: [first, second, third, fourth]. There are no restrictions for spaces number. Important: pass a list in "".

You must pass options as pairs of a flag and its value.

Example of a configuration

It's an example of program arguments in IntelliJ-IDEA for the Main:

-inputPath test/Repository.kt -accessModifier private -inputLanguage kotlin -outputLanguage java -whitelist "[get, remove]"

Notes!

The library chosen for the Kotlin language does NOT support where-expression (with type bounds), so in this project multiple type bounds are not supported for Kotlin.

TODO