swaydb.data.config.builder.MemoryCacheAllBuilder.scala Maven / Gradle / Ivy

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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.data.config.builder

import java.util.Optional

import swaydb.data.config.{ActorConfig, MemoryCache}
import swaydb.data.util.Java._

class MemoryCacheAllBuilder {
  private var minIOSeekSize: Int = _
  private var skipBlockCacheSeekSize: Int = _
  private var cacheCapacity: Int = _
  private var maxCachedKeyValueCountPerSegment: Option[Int] = _
  private var sweepCachedKeyValues: Boolean = _
}

object MemoryCacheAllBuilder {

  class Step0(builder: MemoryCacheAllBuilder) {
    def minIOSeekSize(minIOSeekSize: Int) = {
      builder.minIOSeekSize = minIOSeekSize
      new Step1(builder)
    }
  }

  class Step1(builder: MemoryCacheAllBuilder) {
    def skipBlockCacheSeekSize(skipBlockCacheSeekSize: Int) = {
      builder.skipBlockCacheSeekSize = skipBlockCacheSeekSize
      new Step2(builder)
    }
  }

  class Step2(builder: MemoryCacheAllBuilder) {
    def cacheCapacity(cacheCapacity: Int) = {
      builder.cacheCapacity = cacheCapacity
      new Step3(builder)
    }
  }

  class Step3(builder: MemoryCacheAllBuilder) {
    def maxCachedKeyValueCountPerSegment(maxCachedKeyValueCountPerSegment: Optional[Integer]) = {
      builder.maxCachedKeyValueCountPerSegment = maxCachedKeyValueCountPerSegment.asScala.asInstanceOf[Option[Int]]
      new Step4(builder)
    }
  }

  class Step4(builder: MemoryCacheAllBuilder) {
    def sweepCachedKeyValues(sweepCachedKeyValues: Boolean) = {
      builder.sweepCachedKeyValues = sweepCachedKeyValues
      new Step5(builder)
    }
  }

  class Step5(builder: MemoryCacheAllBuilder) {
    def actorConfig(actorConfig: ActorConfig) =
      MemoryCache.All(
        minIOSeekSize = builder.minIOSeekSize,
        skipBlockCacheSeekSize = builder.skipBlockCacheSeekSize,
        cacheCapacity = builder.cacheCapacity,
        maxCachedKeyValueCountPerSegment = builder.maxCachedKeyValueCountPerSegment,
        sweepCachedKeyValues = builder.sweepCachedKeyValues,
        actorConfig = actorConfig
      )
  }

  def builder() = new Step0(new MemoryCacheAllBuilder())
}