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SimpleMapper, SimpleSuspendableMapper, mappers for CRUDRepo

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InsanusMokrassar 2022-06-28 00:56:51 +06:00
parent 7ac12455c8
commit b40c093917
4 changed files with 158 additions and 1 deletions
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4
CHANGELOG.md
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@ -2,9 +2,11 @@
## 0.11.7
* `Common`:
* New abstractions `SimpleMapper` and `SimpleSuspendableMapper`
* `Repos`:
* `Common`:
* Add mappers for `ReadCRUDRepo`
* Add mappers for `CRUDRepo`
## 0.11.6

53
common/src/commonMain/kotlin/dev/inmo/micro_utils/common/Mapper.kt Normal file
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@ -0,0 +1,53 @@
package dev.inmo.micro_utils.common
interface SimpleMapper<T1, T2> {
fun t1(from: T2): T1
fun t2(from: T1): T2
operator fun T2.invoke(): T1 = t1(this)
operator fun T1.invoke(): T2 = t2(this)
fun T2.convert(): T1 = t1(this)
fun T1.convert(): T2 = t2(this)
}
class SimpleMapperImpl<T1, T2>(
private val t1: (T2) -> T1,
private val t2: (T1) -> T2,
) : SimpleMapper<T1, T2> {
override fun t1(from: T2): T1 = t1.invoke(from)
override fun t2(from: T1): T2 = t2.invoke(from)
}
@Suppress("NOTHING_TO_INLINE")
inline fun <T1, T2> simpleMapper(
noinline t1: (T2) -> T1,
noinline t2: (T1) -> T2,
) = SimpleMapperImpl(t1, t2)
interface SimpleSuspendableMapper<T1, T2> {
suspend fun t1(from: T2): T1
suspend fun t2(from: T1): T2
suspend operator fun T2.invoke(): T1 = t1(this)
suspend operator fun T1.invoke(): T2 = t2(this)
suspend fun T2.convert(): T1 = t1(this)
suspend fun T1.convert(): T2 = t2(this)
}
class SimpleSuspendableMapperImpl<T1, T2>(
private val t1: suspend (T2) -> T1,
private val t2: suspend (T1) -> T2,
) : SimpleSuspendableMapper<T1, T2> {
override suspend fun t1(from: T2): T1 = t1.invoke(from)
override suspend fun t2(from: T1): T2 = t2.invoke(from)
}
@Suppress("NOTHING_TO_INLINE")
inline fun <T1, T2> simpleSuspendableMapper(
noinline t1: suspend (T2) -> T1,
noinline t2: suspend (T1) -> T2,
) = SimpleSuspendableMapperImpl(t1, t2)

13
repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapperRepo.kt
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@ -1,7 +1,20 @@
package dev.inmo.micro_utils.repos
import dev.inmo.micro_utils.common.*
@Suppress("UNCHECKED_CAST")
interface MapperRepo<FromKey, FromValue, ToKey, ToValue> {
val keyMapper: SimpleSuspendableMapper<FromKey, ToKey>
get() = simpleSuspendableMapper(
{ it.toInnerKey() },
{ it.toOutKey() }
)
val valueMapper: SimpleSuspendableMapper<FromValue, ToValue>
get() = simpleSuspendableMapper(
{ it.toInnerValue() },
{ it.toOutValue() }
)
suspend fun FromKey.toOutKey() = this as ToKey
suspend fun FromValue.toOutValue() = this as ToValue

89
repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt
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@ -1,7 +1,11 @@
package dev.inmo.micro_utils.repos.mappers
import dev.inmo.micro_utils.common.SimpleSuspendableMapper
import dev.inmo.micro_utils.common.simpleSuspendableMapper
import dev.inmo.micro_utils.pagination.*
import dev.inmo.micro_utils.repos.*
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.map
open class MapperReadCRUDRepo<FromId, FromRegistered, ToId, ToRegistered>(
private val to: ReadCRUDRepo<ToRegistered, ToId>,
@ -40,3 +44,88 @@ inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue>
): ReadCRUDRepo<FromValue, FromKey> = withMapper(
mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
)
open class MapperWriteCRUDRepo<FromId, FromRegistered, FromInput, ToId, ToRegistered, ToInput>(
private val to: WriteCRUDRepo<ToRegistered, ToId, ToInput>,
mapper: MapperRepo<FromId, FromRegistered, ToId, ToRegistered>,
inputMapper: SimpleSuspendableMapper<FromInput, ToInput>
) : WriteCRUDRepo<FromRegistered, FromId, FromInput>,
MapperRepo<FromId, FromRegistered, ToId, ToRegistered> by mapper,
SimpleSuspendableMapper<FromInput, ToInput> by inputMapper {
override val newObjectsFlow: Flow<FromRegistered> = to.newObjectsFlow.map { it.toInnerValue() }
override val updatedObjectsFlow: Flow<FromRegistered> = to.updatedObjectsFlow.map { it.toInnerValue() }
override val deletedObjectsIdsFlow: Flow<FromId> = to.deletedObjectsIdsFlow.map { it.toInnerKey() }
override suspend fun deleteById(ids: List<FromId>) = to.deleteById(ids.map { it.toOutKey() })
override suspend fun update(
values: List<UpdatedValuePair<FromId, FromInput>>
): List<FromRegistered> = to.update(
values.map {
it.first.toOutKey() to it.second.convert()
}
).map { it.toInnerValue() }
override suspend fun update(
id: FromId,
value: FromInput
): FromRegistered? = to.update(id.toOutKey(), value.convert()) ?.toInnerValue()
override suspend fun create(values: List<FromInput>): List<FromRegistered> = to.create(
values.map {
it.convert()
}
).map {
it.toInnerValue()
}
}
@Suppress("NOTHING_TO_INLINE")
inline fun <FromKey, FromValue, FromInput, ToKey, ToValue, ToInput> WriteCRUDRepo<ToValue, ToKey, ToInput>.withMapper(
mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>,
simpleSuspendableMapper: SimpleSuspendableMapper<FromInput, ToInput>
): WriteCRUDRepo<FromValue, FromKey, FromInput> = MapperWriteCRUDRepo(this, mapper, simpleSuspendableMapper)
@Suppress("NOTHING_TO_INLINE")
inline fun <reified FromKey, reified FromValue, reified FromInput, reified ToKey, reified ToValue, reified ToInput> WriteCRUDRepo<ToValue, ToKey, ToInput>.withMapper(
crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
crossinline inputFromToTo: suspend FromInput.() -> ToInput = { this as ToInput },
crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
crossinline inputToToFrom: suspend ToInput.() -> FromInput = { this as FromInput },
): WriteCRUDRepo<FromValue, FromKey, FromInput> = withMapper(
mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom),
simpleSuspendableMapper({ inputToToFrom(it) }, { inputFromToTo(it) })
)
@Suppress("DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE")
open class MapperCRUDRepo<FromId, FromRegistered, FromInput, ToId, ToRegistered, ToInput>(
private val to: CRUDRepo<ToRegistered, ToId, ToInput>,
private val mapper: MapperRepo<FromId, FromRegistered, ToId, ToRegistered>,
private val inputMapper: SimpleSuspendableMapper<FromInput, ToInput>
) : CRUDRepo<FromRegistered, FromId, FromInput>,
MapperRepo<FromId, FromRegistered, ToId, ToRegistered> by mapper,
ReadCRUDRepo<FromRegistered, FromId> by MapperReadCRUDRepo(to, mapper),
WriteCRUDRepo<FromRegistered, FromId, FromInput> by MapperWriteCRUDRepo(to, mapper, inputMapper)
@Suppress("NOTHING_TO_INLINE")
inline fun <FromKey, FromValue, FromInput, ToKey, ToValue, ToInput> CRUDRepo<ToValue, ToKey, ToInput>.withMapper(
mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>,
simpleSuspendableMapper: SimpleSuspendableMapper<FromInput, ToInput>
): CRUDRepo<FromValue, FromKey, FromInput> = MapperCRUDRepo(this, mapper, simpleSuspendableMapper)
@Suppress("NOTHING_TO_INLINE")
inline fun <reified FromKey, reified FromValue, reified FromInput, reified ToKey, reified ToValue, reified ToInput> CRUDRepo<ToValue, ToKey, ToInput>.withMapper(
crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
crossinline inputFromToTo: suspend FromInput.() -> ToInput = { this as ToInput },
crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
crossinline inputToToFrom: suspend ToInput.() -> FromInput = { this as FromInput },
): CRUDRepo<FromValue, FromKey, FromInput> = withMapper(
mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom),
simpleSuspendableMapper({ inputToToFrom(it) }, { inputFromToTo(it) })
)