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package xyz.driver.core.file
import akka.NotUsed
import akka.stream.scaladsl.{FileIO, Source}
import akka.util.ByteString
import java.io.File
import java.nio.file.{Files, Path, Paths}
import xyz.driver.core.{Name, Revision}
import xyz.driver.core.time.Time
import scala.concurrent.{ExecutionContext, Future}
import scalaz.{ListT, OptionT}
@deprecated("Consider using xyz.driver.core.storage.FileSystemBlobStorage instead", "driver-core 1.8.14")
class FileSystemStorage(executionContext: ExecutionContext) extends FileStorage {
implicit private val execution = executionContext
override def upload(localSource: File, destination: Path): Future[Unit] = Future {
checkSafeFileName(destination) {
val destinationFile = destination.toFile
if (destinationFile.getParentFile.exists() || destinationFile.getParentFile.mkdirs()) {
if (localSource.renameTo(destinationFile)) ()
else {
throw new Exception(
s"Failed to move file from `${localSource.getCanonicalPath}` to `${destinationFile.getCanonicalPath}`")
}
} else {
throw new Exception(s"Failed to create parent directories for file `${destinationFile.getCanonicalPath}`")
}
}
}
override def download(filePath: Path): OptionT[Future, File] =
OptionT.optionT(Future {
Option(new File(filePath.toString)).filter(file => file.exists() && file.isFile)
})
override def stream(filePath: Path): OptionT[Future, Source[ByteString, NotUsed]] =
OptionT.optionT(Future {
if (Files.exists(filePath)) {
Some(FileIO.fromPath(filePath).mapMaterializedValue(_ => NotUsed))
} else {
None
}
})
override def delete(filePath: Path): Future[Unit] = Future {
val file = new File(filePath.toString)
if (file.delete()) ()
else {
throw new Exception(s"Failed to delete file $file" + (if (!file.exists()) ", file does not exist." else "."))
}
}
override def list(path: Path): ListT[Future, FileLink] =
ListT.listT(Future {
val file = new File(path.toString)
if (file.isDirectory) {
file.listFiles().toList.filter(_.isFile).map { file =>
FileLink(
Name[File](file.getName),
Paths.get(file.getPath),
Revision[File](file.hashCode.toString),
Time(file.lastModified()),
file.length())
}
} else List.empty[FileLink]
})
override def exists(path: Path): Future[Boolean] = Future {
Files.exists(path)
}
}
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