HHH-15598 Remove InstrumentedClassLoader, demote ByteCodeHelper to test helper

This commit is contained in:
Sanne Grinovero 2022-10-11 20:42:49 +01:00 committed by Sanne Grinovero
parent 6b6cd51edf
commit 6fbb9633aa
2 changed files with 0 additions and 64 deletions

View File

@ -1,64 +0,0 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.bytecode.spi;
import java.io.InputStream;
/**
* A specialized ClassLoader which performs bytecode enhancement on class definitions as they are loaded
* into the ClassLoader scope.
*
* @author Emmanuel Bernard
* @author Steve Ebersole
*/
public class InstrumentedClassLoader extends ClassLoader {
private final ClassTransformer classTransformer;
/**
* Constructs an InstrumentedClassLoader.
*
* @param parent The parent ClassLoader
* @param classTransformer The transformer to use for applying enhancement
*/
public InstrumentedClassLoader(ClassLoader parent, ClassTransformer classTransformer) {
super( parent );
this.classTransformer = classTransformer;
}
@Override
public Class loadClass(String name) throws ClassNotFoundException {
if ( name.startsWith( "java." ) || classTransformer == null ) {
return getParent().loadClass( name );
}
final Class c = findLoadedClass( name );
if ( c != null ) {
return c;
}
final InputStream is = this.getResourceAsStream( name.replace( '.', '/' ) + ".class" );
if ( is == null ) {
throw new ClassNotFoundException( name + " not found" );
}
try {
final byte[] originalBytecode = ByteCodeHelper.readByteCode( is );
final byte[] transformedBytecode = classTransformer.transform( getParent(), name, null, null, originalBytecode );
if ( transformedBytecode == null ) {
// no transformations took place, so handle it as we would a
// non-instrumented class
return getParent().loadClass( name );
}
else {
return defineClass( name, transformedBytecode, 0, transformedBytecode.length );
}
}
catch ( Throwable t ) {
throw new ClassNotFoundException( name + " not found", t );
}
}
}