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80
src/main/scala/de/htwg/se/sudoku/model/fileIoComponent/fileIoMongoDBImpl/FileIO.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package de.htwg.se.sudoku.model.fileIoComponent.fileIoMongoDBImpl | ||
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| import com.google.inject.{Guice, Inject} | ||
| import com.google.inject.name.{Named, Names} | ||
| import de.htwg.se.sudoku.SudokuModule | ||
| import de.htwg.se.sudoku.model.fileIoComponent.FileIOInterface | ||
| import de.htwg.se.sudoku.model.gridComponent.GridInterface | ||
| import net.codingwell.scalaguice.InjectorExtensions.ScalaInjector | ||
| import org.mongodb.scala.model.Projections | ||
| import org.mongodb.scala.{Document, MongoClient, MongoDatabase} | ||
| import play.api.libs.json.{JsValue, Json} | ||
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| import scala.concurrent.Await | ||
| import scala.concurrent.duration.Duration | ||
| import scala.util.Try | ||
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| class FileIO @Inject()(@Named("MongoDBHost") host: String, @Named("MongoDBPort") port: Int) extends FileIOInterface { | ||
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| private val mongoClient: MongoClient = MongoClient(s"mongodb://$host:$port") | ||
| private val db: MongoDatabase = mongoClient.getDatabase("sudoku-in-scala") | ||
| private val collection = db.getCollection("sudoku-in-scala-col") | ||
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| override def load: Try[Option[GridInterface]] = { | ||
| val resF = collection.find().projection(Projections.excludeId()).toFuture() | ||
| val res = Await.result(resF, Duration.Inf) | ||
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| var gridOption: Option[GridInterface] = None | ||
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| Try { | ||
| val json: JsValue = Json.parse(res.head.toJson()) | ||
| val size = (json \ "grid" \ "size").get.toString.toInt | ||
| val injector = Guice.createInjector(new SudokuModule) | ||
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| size match { | ||
| case 1 => | ||
| gridOption = | ||
| Some(injector.instance[GridInterface](Names.named("tiny"))) | ||
| case 4 => | ||
| gridOption = | ||
| Some(injector.instance[GridInterface](Names.named("small"))) | ||
| case 9 => | ||
| gridOption = | ||
| Some(injector.instance[GridInterface](Names.named("normal"))) | ||
| case _ => | ||
| } | ||
| gridOption match { | ||
| case Some(grid) => { | ||
| var _grid = grid | ||
| for (index <- 0 until size * size) { | ||
| val row = (json \\ "row") (index).as[Int] | ||
| val col = (json \\ "col") (index).as[Int] | ||
| val cell = (json \\ "cell") (index) | ||
| val value = (cell \ "value").as[Int] | ||
| _grid = _grid.set(row, col, value) | ||
| val given = (cell \ "given").as[Boolean] | ||
| val showCandidates = (cell \ "showCandidates").as[Boolean] | ||
| if (given) _grid = _grid.setGiven(row, col, value) | ||
| if (showCandidates) _grid = _grid.setShowCandidates(row, col) | ||
| } | ||
| gridOption = Some(_grid) | ||
| } | ||
| case None => | ||
| } | ||
| gridOption | ||
| } | ||
| } | ||
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| override def save(grid: GridInterface): Try[Unit] = { | ||
| Try { | ||
| Await.result(collection.drop().toFuture(), Duration.Inf) | ||
| val gameStateDoc = Document.apply(gridToJson(grid).toString()) | ||
| val resF = collection.insertOne(gameStateDoc).toFuture() | ||
| Await.result(resF, Duration.Inf) | ||
| } | ||
| } | ||
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| def gridToJson(grid: GridInterface) = grid.toJson | ||
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| override def unbind(): Unit = {} | ||
| } |