1 files changed, 25 insertions, 0 deletions
diff --git a/stage1/ClassLoaderCache.scala b/stage1/ClassLoaderCache.scala
new file mode 100644
index 0000000..ec343f4
--- /dev/null
+++ b/stage1/ClassLoaderCache.scala
@@ -0,0 +1,25 @@
+package cbt
+
+import java.net._
+
+object ClassLoaderCache{
+  private val cache = NailgunLauncher.classLoaderCache
+  def get( classpath: ClassPath )(implicit logger: Logger): ClassLoader
+    = cache.synchronized{
+    val lib = new Stage1Lib(logger)
+    val key = classpath.strings.sorted.mkString(":")
+    if( cache.containsKey(key) ){
+      logger.resolver("CACHE HIT: "++key)
+      cache.get(key)
+    } else {
+      logger.resolver("CACHE MISS: "++key)
+      val cl = new cbt.URLClassLoader( classpath, ClassLoader.getSystemClassLoader )
+      cache.put( key, cl )
+      cl
+    }
+  }
+  def remove( classpath: ClassPath ) = {
+    val key = classpath.strings.sorted.mkString(":")
+    cache.remove( key )
+  }
+}