Mercurial > jdk8-mips64-public > hotspot / file revision

 import java.io.ByteArrayInputStream;

 import java.io.FileInputStream;

 public class Loader2 extends ClassLoader {

   int _recur;

   public void print( String msg ) {

     for( int i=0; i<_recur; i++ )

       System.out.print("  ");

     System.out.println(">>Loader2>> "+msg);

   }

   protected Class findClass2(String name) throws ClassNotFoundException {

     print("Fetching the implementation of "+name);

     int old = _recur;

     try {

       FileInputStream fi = new FileInputStream(name+".impl2");

       byte result[] = new byte[fi.available()];

       fi.read(result);

       print("DefineClass1 on "+name);

       _recur++;

       Class clazz = defineClass(name, result, 0, result.length);

       _recur = old;

       print("Returning newly loaded class.");

       return clazz;

     } catch (Exception e) {

       _recur = old;

       print("Not found on disk.");

       // If we caught an exception, either the class was not found or

       // it was unreadable by our process.

       return null;

       //throw new ClassNotFoundException(e.toString());

     }

   }

   protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException  {

     // Attempt a disk load first

     Class c = findClass2(name);

     if( c == null ) {

       // check if the class has already been loaded

       print("Checking for prior loaded class "+name);

       c = findLoadedClass(name);

       print("Letting super-loader load "+name);

       int old = _recur;

       _recur++;

       c = super.loadClass(name, false);

       _recur=old;

     }

     if (resolve) { print("Resolving class "+name); resolveClass(c); }

     print("Returning clazz "+c.getClassLoader()+":"+name);

     return c;

   }

 }