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package fuookami.ospf.kotlin.utils.meta_programming
/**
* implementation for name transfer
*
* @property frontend frontend naming system
* @property backend backend naming system
* @property cache cache of transferring results
*/
private class NameTransferImpl(
val frontend: NamingSystem,
val backend: NamingSystem
) {
@get:Synchronized
val cache: HashMap = HashMap()
/**
* transform a name from the frontend naming system to the backend naming system
*
* @param name given name
* @param abbreviations abbreviation set
* @return the name corresponding the backend naming system
*/
operator fun invoke(name: String, abbreviations: Set): String {
return cache.getOrPut(name) {
val il = frontend.frontend(name, abbreviations)
backend.backend(il)
}
}
/**
* transform a name from the backend naming system to the frontend naming system
*
* @param name given name
* @param abbreviations abbreviation set
* @return the name corresponding the frontend naming system
*/
fun reverse(name: String, abbreviations: Set = emptySet()): String {
return transfers[Pair(backend, frontend)]!!(name, abbreviations)
}
}
/**
* build a name transfer with given frontend and backend naming system
*
* @param frontend frontend naming system
* @param backend backend naming system
* @return name transfer for given frontend and backend naming system
*/
private fun nameTransferOf(
frontend: NamingSystem,
backend: NamingSystem
): Pair, NameTransferImpl> {
return Pair(Pair(frontend, backend), NameTransferImpl(frontend, backend))
}
/**
* name transfers set
*/
private val transfers = mapOf(
nameTransferOf(NamingSystem.SnakeCase, NamingSystem.UpperSnakeCase),
nameTransferOf(NamingSystem.SnakeCase, NamingSystem.KebabCase),
nameTransferOf(NamingSystem.SnakeCase, NamingSystem.CamelCase),
nameTransferOf(NamingSystem.SnakeCase, NamingSystem.PascalCase),
nameTransferOf(NamingSystem.UpperSnakeCase, NamingSystem.SnakeCase),
nameTransferOf(NamingSystem.UpperSnakeCase, NamingSystem.KebabCase),
nameTransferOf(NamingSystem.UpperSnakeCase, NamingSystem.CamelCase),
nameTransferOf(NamingSystem.UpperSnakeCase, NamingSystem.PascalCase),
nameTransferOf(NamingSystem.KebabCase, NamingSystem.SnakeCase),
nameTransferOf(NamingSystem.KebabCase, NamingSystem.UpperSnakeCase),
nameTransferOf(NamingSystem.KebabCase, NamingSystem.CamelCase),
nameTransferOf(NamingSystem.KebabCase, NamingSystem.PascalCase),
nameTransferOf(NamingSystem.CamelCase, NamingSystem.SnakeCase),
nameTransferOf(NamingSystem.CamelCase, NamingSystem.UpperSnakeCase),
nameTransferOf(NamingSystem.CamelCase, NamingSystem.KebabCase),
nameTransferOf(NamingSystem.CamelCase, NamingSystem.PascalCase),
nameTransferOf(NamingSystem.PascalCase, NamingSystem.SnakeCase),
nameTransferOf(NamingSystem.PascalCase, NamingSystem.UpperSnakeCase),
nameTransferOf(NamingSystem.PascalCase, NamingSystem.KebabCase),
nameTransferOf(NamingSystem.PascalCase, NamingSystem.CamelCase),
)
/**
* name transfer
*
* @property frontend frontend naming system
* @property backend backend naming system
* @property abbreviations abbreviation set
* @property impl implementation
*/
class NameTransfer(
val frontend: NamingSystem,
val backend: NamingSystem,
val abbreviations: Set = emptySet()
) {
private val impl: NameTransferImpl? = transfers[Pair(frontend, backend)]
/**
* transform a name from the frontend naming system to the backend naming system
*
* @param name given name
* @return the name corresponding the backend naming system
*/
operator fun invoke(name: String): String {
return impl?.invoke(name, abbreviations) ?: name
}
/**
* transform a name from the backend naming system to the frontend naming system
*
* @param name given name
* @return the name corresponding the frontend naming system
*/
fun reverse(name: String): String {
return impl?.reverse(name) ?: name
}
}
