blob: 3293dd12d675ba9a7409bbdd871317b6aa68509d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
package cbt
import java.io._
import java.net._
import java.nio.file._
import scala.util.Try
import scala.collection.immutable.Seq
object ClassLoaderCache{
private val cache = NailgunLauncher.classLoaderCache
def classLoader( classpath: ClassPath, parent: ClassLoader )(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, parent )
cache.put( key, cl )
cl
}
}
def remove( classpath: ClassPath ) = {
val key = classpath.strings.sorted.mkString(":")
cache.remove( key )
}
}
/*
class MultiClassLoader(parents: Seq[ClassLoader]) extends ClassLoader {
override def loadClass(name: String) = {
//System.err.println("LOADING CLASS "++name);
val c = parents.toStream.map{
parent =>
Try{
parent.loadClass(name)
}.map(Option[Class[_]](_)).recover{
case _:ClassNotFoundException => None
}.get
}.find(_.isDefined).flatten
c.getOrElse( ClassLoader.getSystemClassLoader.loadClass(name) )
}
override def toString = "MultiClassLoader(" ++ parents.mkString(",") ++ ")"
}
*/
case class URLClassLoader(classPath: ClassPath, parent: ClassLoader)
extends java.net.URLClassLoader(
classPath.strings.map(
path => new URL("file:"++path)
).toArray,
parent
){
override def toString = (
scala.Console.BLUE ++ "cbt.URLClassLoader" ++ scala.Console.RESET
++ "(\n " ++ getURLs.map(_.toString).sorted.mkString(",\n ")
++ (
if(getParent() != ClassLoader.getSystemClassLoader())
",\n" ++ getParent().toString.split("\n").map(" "++_).mkString("\n")
else ""
)
++ "\n)"
)
}
|
