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/*
* Copyright (c) 2020 Simer JS Plaha ([email protected] - @simerplaha)
*
* This file is a part of SwayDB.
*
* SwayDB is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* SwayDB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with SwayDB. If not, see .
*
* Additional permission under the GNU Affero GPL version 3 section 7:
* If you modify this Program or any covered work, only by linking or
* combining it with separate works, the licensors of this Program grant
* you additional permission to convey the resulting work.
*/
package swaydb.java.memory
import swaydb.core.util.Eithers
import swaydb.data.accelerate.{Accelerator, LevelZeroMeter}
import swaydb.data.compaction.{LevelMeter, Throttle}
import swaydb.data.config.{FileCache, ThreadStateCache}
import swaydb.data.order.KeyOrder
import swaydb.data.slice.Slice
import swaydb.data.util.Java.JavaFunction
import swaydb.data.util.StorageUnits._
import swaydb.java._
import swaydb.java.data.slice.ByteSlice
import swaydb.java.serializers.{SerializerConverter, Serializer => JavaSerializer}
import swaydb.memory.DefaultConfigs
import swaydb.serializers.Serializer
import swaydb.{Apply, Bag}
import scala.compat.java8.FunctionConverters._
import scala.concurrent.duration._
import scala.reflect.ClassTag
object SetConfig {
final class Config[A, F](private var mapSize: Int = 4.mb,
private var minSegmentSize: Int = 2.mb,
private var maxKeyValuesPerSegment: Int = Int.MaxValue,
private var deleteSegmentsEventually: Boolean = true,
private var fileCache: FileCache.Enable = DefaultConfigs.fileCache(),
private var acceleration: JavaFunction[LevelZeroMeter, Accelerator] = (Accelerator.noBrakes() _).asJava,
private var levelZeroThrottle: JavaFunction[LevelZeroMeter, FiniteDuration] = (DefaultConfigs.levelZeroThrottle _).asJava,
private var lastLevelThrottle: JavaFunction[LevelMeter, Throttle] = (DefaultConfigs.lastLevelThrottle _).asJava,
private var threadStateCache: ThreadStateCache = ThreadStateCache.Limit(hashMapMaxSize = 100, maxProbe = 10),
private var byteComparator: KeyComparator[ByteSlice] = null,
private var typedComparator: KeyComparator[A] = null,
serializer: Serializer[A],
functionClassTag: ClassTag[_]) {
def setMapSize(mapSize: Int) = {
this.mapSize = mapSize
this
}
def setMinSegmentSize(minSegmentSize: Int) = {
this.minSegmentSize = minSegmentSize
this
}
def setMaxKeyValuesPerSegment(maxKeyValuesPerSegment: Int) = {
this.maxKeyValuesPerSegment = maxKeyValuesPerSegment
this
}
def setDeleteSegmentsEventually(deleteSegmentsEventually: Boolean) = {
this.deleteSegmentsEventually = deleteSegmentsEventually
this
}
def setFileCache(fileCache: FileCache.Enable) = {
this.fileCache = fileCache
this
}
def setAcceleration(acceleration: JavaFunction[LevelZeroMeter, Accelerator]) = {
this.acceleration = acceleration
this
}
def setLevelZeroThrottle(levelZeroThrottle: JavaFunction[LevelZeroMeter, FiniteDuration]) = {
this.levelZeroThrottle = levelZeroThrottle
this
}
def setLastLevelThrottle(lastLevelThrottle: JavaFunction[LevelMeter, Throttle]) = {
this.lastLevelThrottle = lastLevelThrottle
this
}
def setThreadStateCache(threadStateCache: ThreadStateCache) = {
this.threadStateCache = threadStateCache
this
}
def setByteComparator(byteComparator: KeyComparator[ByteSlice]) = {
this.byteComparator = byteComparator
this
}
def setTypedComparator(typedComparator: KeyComparator[A]) = {
this.typedComparator = typedComparator
this
}
private val functions = swaydb.Set.Functions[A, swaydb.PureFunction.OnKey[A, Nothing, Apply.Set[Nothing]]]()(serializer)
def registerFunctions(functions: F*): Config[A, F] = {
functions.foreach(registerFunction(_))
this
}
def registerFunction(function: F): Config[A, F] = {
val scalaFunction = PureFunction.asScala(function.asInstanceOf[swaydb.java.PureFunction.OnKey[A, Void, Return.Set[Void]]])
functions.register(scalaFunction)
this
}
def removeFunction(function: F): Config[A, F] = {
val scalaFunction = function.asInstanceOf[swaydb.java.PureFunction.OnKey[A, Void, Return.Set[Void]]].id.asInstanceOf[Slice[Byte]]
functions.core.remove(scalaFunction)
this
}
def get(): swaydb.java.Set[A, F] = {
val comparator: Either[KeyComparator[ByteSlice], KeyComparator[A]] =
Eithers.nullCheck(
left = byteComparator,
right = typedComparator,
default = KeyComparator.lexicographic
)
val scalaKeyOrder: KeyOrder[Slice[Byte]] = KeyOrderConverter.toScalaKeyOrder(comparator, serializer)
val scalaMap =
swaydb.memory.Set[A, swaydb.PureFunction.OnKey[A, Void, Apply.Set[Void]], Bag.Less](
mapSize = mapSize,
minSegmentSize = minSegmentSize,
maxKeyValuesPerSegment = maxKeyValuesPerSegment,
fileCache = fileCache,
deleteSegmentsEventually = deleteSegmentsEventually,
acceleration = acceleration.asScala,
levelZeroThrottle = levelZeroThrottle.asScala,
lastLevelThrottle = lastLevelThrottle.asScala,
threadStateCache = threadStateCache
)(serializer = serializer,
functionClassTag = functionClassTag.asInstanceOf[ClassTag[swaydb.PureFunction.OnKey[A, Void, Apply.Set[Void]]]],
bag = Bag.less,
functions = functions.asInstanceOf[swaydb.Set.Functions[A, swaydb.PureFunction.OnKey[A, Void, Apply.Set[Void]]]],
byteKeyOrder = scalaKeyOrder
)
swaydb.java.Set[A, F](scalaMap)
}
}
def functionsOn[A](serializer: JavaSerializer[A]): Config[A, swaydb.java.PureFunction.OnKey[A, Void, Return.Set[Void]]] =
new Config(
serializer = SerializerConverter.toScala(serializer),
functionClassTag = ClassTag(classOf[swaydb.PureFunction.OnKey[A, Void, Apply.Set[Void]]])
)
def functionsOff[A](serializer: JavaSerializer[A]): Config[A, Void] =
new Config[A, Void](
serializer = SerializerConverter.toScala(serializer),
functionClassTag = ClassTag.Nothing
)
}
