overflowdb.formats.package.scala Maven / Gradle / Ivy
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package overflowdb
import java.nio.charset.Charset
import java.nio.file.{Files, Path}
import scala.collection.immutable.ArraySeq
import scala.jdk.CollectionConverters.{IterableHasAsScala, MapHasAsScala}
package object formats {
object Format extends Enumeration {
val Neo4jCsv, GraphML, GraphSON, Dot = Value
lazy val byNameLowercase: Map[String, Format.Value] =
values.map(format => (format.toString.toLowerCase, format)).toMap
lazy val valuesAsStringLowercase: Seq[String] =
byNameLowercase.values.toSeq.map(_.toString.toLowerCase).sorted
}
/** @return
* true if the given class is either array or a (subclass of) Java Iterable or Scala IterableOnce
*/
def isList(clazz: Class[_]): Boolean = {
clazz.isArray ||
classOf[java.lang.Iterable[_]].isAssignableFrom(clazz) ||
classOf[IterableOnce[_]].isAssignableFrom(clazz)
}
val iterableForList: PartialFunction[Any, Iterable[_]] = {
case it: Iterable[_] => it
case it: IterableOnce[_] => it.iterator.toSeq
case it: java.lang.Iterable[_] => it.asScala
case arr: Array[_] => ArraySeq.unsafeWrapArray(arr)
}
/** If given outputFile is a directory: export into a new file in that directory Otherwise: use the given outputFile
* as is, and create all parent directories (if not there already)
*/
def resolveOutputFileSingle(outputFile: Path, defaultName: String): Path = {
if (Files.exists(outputFile) && Files.isDirectory(outputFile)) {
outputFile.resolve(defaultName)
} else {
Files.createDirectories(outputFile.getParent)
outputFile
}
}
def writeFile(file: Path, content: String): Unit =
Files.write(file, content.getBytes(Charset.forName("UTF-8")))
}