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-rw-r--r--jni-library/src/main/scala/ch/jodersky/jni/NativeLoader.scala78
1 files changed, 0 insertions, 78 deletions
diff --git a/jni-library/src/main/scala/ch/jodersky/jni/NativeLoader.scala b/jni-library/src/main/scala/ch/jodersky/jni/NativeLoader.scala
deleted file mode 100644
index c806464..0000000
--- a/jni-library/src/main/scala/ch/jodersky/jni/NativeLoader.scala
+++ /dev/null
@@ -1,78 +0,0 @@
-package ch.jodersky.jni
-
-import java.io.{File, FileOutputStream, InputStream, OutputStream}
-
-/**
- * Provides enhanced native library loading functionality.
- */
-object NativeLoader {
-
- /** Name of the shared library file that is contained in a jar. */
- final val LibraryName = "library"
-
- final val BufferSize = 4096
-
- /** Extracts a resource from this class loader to a temporary file. */
- private def extract(path: String): Option[File] = {
- var in: Option[InputStream] = None
- var out: Option[OutputStream] = None
-
- try {
- in = Option(NativeLoader.getClass.getResourceAsStream(path))
- if (in.isEmpty) return None
-
- val file = File.createTempFile(path, "")
- out = Some(new FileOutputStream(file))
-
- val buffer = new Array[Byte](BufferSize)
- var length = -1;
- do {
- length = in.get.read(buffer)
- if (length != -1) out.get.write(buffer, 0, length)
- } while (length != -1)
-
- Some(file)
- } finally {
- in.foreach(_.close)
- out.foreach(_.close)
- }
- }
-
- private def loadError(msg: String): Nothing = throw new UnsatisfiedLinkError(
- "Error during native library extraction " +
- "(this can happen if your platform is not supported): " +
- msg
- )
-
- /**
- * Gets the absolute, full path of a native library on the classpath, given a libraryPath
- * and platform.
- */
- def fullLibraryPath(libraryPath: String, platform: Platform) = {
- libraryPath + "/" + platform.id + "/" + LibraryName
- }
-
- private def loadFromJar(libraryPath: String): Unit = {
- val platform = Platform.current.getOrElse {
- loadError("Cannot determine current platform.")
- }
-
- val resource = fullLibraryPath(libraryPath, platform)
-
- val file = extract(resource) getOrElse loadError(
- s"Shared library $resource not found."
- )
- System.load(file.getAbsolutePath())
- }
-
- /**
- * Loads a native library from the available library path or falls back
- * to extracting and loading a native library from available resources.
- */
- def load(libraryPath: String, library: String): Unit = try {
- System.loadLibrary(library)
- } catch {
- case ex: UnsatisfiedLinkError => loadFromJar(libraryPath)
- }
-
-}