org.hibernate.testing.bytecode.enhancement.BytecodeEnhancerRunner Maven / Gradle / Ivy
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Support for testing Hibernate ORM Jakarta functionality
/*
* 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 .
*/
package org.hibernate.testing.bytecode.enhancement;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Consumer;
import org.hibernate.bytecode.enhance.spi.EnhancementContext;
import org.hibernate.bytecode.enhance.spi.Enhancer;
import org.hibernate.bytecode.enhance.spi.UnloadedClass;
import org.hibernate.bytecode.enhance.spi.UnloadedField;
import org.hibernate.cfg.Environment;
import org.hibernate.testing.junit4.CustomRunner;
import org.junit.runner.Runner;
import org.junit.runner.notification.RunNotifier;
import org.junit.runners.ParentRunner;
import org.junit.runners.Suite;
import org.junit.runners.model.InitializationError;
import org.junit.runners.model.RunnerBuilder;
/**
* @author Luis Barreiro
*/
public class BytecodeEnhancerRunner extends Suite {
private static final RunnerBuilder CUSTOM_RUNNER_BUILDER = new RunnerBuilder() {
@Override
public Runner runnerForClass(Class testClass) throws Throwable {
return new CustomRunner( testClass );
}
};
public BytecodeEnhancerRunner(Class klass) throws ClassNotFoundException, InitializationError {
super( CUSTOM_RUNNER_BUILDER, klass, enhanceTestClass( klass ) );
}
private static Class[] enhanceTestClass(Class klass) throws ClassNotFoundException {
String packageName = klass.getPackage().getName();
List> classList = new ArrayList<>();
try {
if ( klass.isAnnotationPresent( EnhancementOptions.class )
|| klass.isAnnotationPresent( ClassEnhancementSelector.class )
|| klass.isAnnotationPresent( ClassEnhancementSelectors.class )
|| klass.isAnnotationPresent( PackageEnhancementSelector.class )
|| klass.isAnnotationPresent( PackageEnhancementSelectors.class )
|| klass.isAnnotationPresent( ImplEnhancementSelector.class )
|| klass.isAnnotationPresent( ImplEnhancementSelectors.class ) ) {
classList.add( buildEnhancerClassLoader( klass ).loadClass( klass.getName() ) );
}
else if ( klass.isAnnotationPresent( CustomEnhancementContext.class ) ) {
for ( Class contextClass : klass.getAnnotation( CustomEnhancementContext.class ).value() ) {
EnhancementContext enhancementContextInstance = contextClass.getConstructor().newInstance();
classList.add( getEnhancerClassLoader( enhancementContextInstance, packageName ).loadClass( klass.getName() ) );
}
}
else {
classList.add( getEnhancerClassLoader( new EnhancerTestContext(), packageName ).loadClass( klass.getName() ) );
}
}
catch ( IllegalAccessException | InstantiationException | NoSuchMethodException | InvocationTargetException e ) {
// This is unlikely, but if happens throw runtime exception to fail the test
throw new RuntimeException( e );
}
return classList.toArray( new Class[]{} );
}
// --- //
private static ClassLoader buildEnhancerClassLoader(Class klass) {
final EnhancementOptions options = klass.getAnnotation( EnhancementOptions.class );
final EnhancementContext enhancerContext;
if ( options == null ) {
enhancerContext = new EnhancerTestContext();
}
else {
enhancerContext = new EnhancerTestContext() {
@Override
public boolean doBiDirectionalAssociationManagement(UnloadedField field) {
return options.biDirectionalAssociationManagement() && super.doBiDirectionalAssociationManagement( field );
}
@Override
public boolean doDirtyCheckingInline(UnloadedClass classDescriptor) {
return options.inlineDirtyChecking() && super.doDirtyCheckingInline( classDescriptor );
}
@Override
public boolean doExtendedEnhancement(UnloadedClass classDescriptor) {
return options.extendedEnhancement() && super.doExtendedEnhancement( classDescriptor );
}
@Override
public boolean hasLazyLoadableAttributes(UnloadedClass classDescriptor) {
return options.lazyLoading() && super.hasLazyLoadableAttributes( classDescriptor );
}
@Override
public boolean isLazyLoadable(UnloadedField field) {
return options.lazyLoading() && super.isLazyLoadable( field );
}
};
}
final List selectors = new ArrayList<>();
selectors.add( new PackageSelector( klass.getPackage().getName() ) );
applySelectors(
klass,
ClassEnhancementSelector.class,
ClassEnhancementSelectors.class,
selectorAnnotation -> selectors.add( new ClassSelector( selectorAnnotation.value().getName() ) )
);
applySelectors(
klass,
PackageEnhancementSelector.class,
PackageEnhancementSelectors.class,
selectorAnnotation -> selectors.add( new PackageSelector( selectorAnnotation.value() ) )
);
applySelectors(
klass,
ImplEnhancementSelector.class,
ImplEnhancementSelectors.class,
selectorAnnotation -> {
try {
selectors.add( selectorAnnotation.impl().newInstance() );
}
catch ( RuntimeException re ) {
throw re;
}
catch ( Exception e ) {
throw new RuntimeException( e );
}
}
);
return buildEnhancerClassLoader( enhancerContext, selectors );
}
private static void applySelectors(
Class klass,
Class selectorAnnotationType,
Class selectorsAnnotationType,
Consumer action) {
final A selectorAnnotation = klass.getAnnotation( selectorAnnotationType );
final Annotation selectorsAnnotation = klass.getAnnotation( selectorsAnnotationType );
if ( selectorAnnotation != null ) {
action.accept( selectorAnnotation );
}
else if ( selectorsAnnotation != null ) {
try {
final Method valuesMethod = selectorsAnnotationType.getDeclaredMethods()[0];
//noinspection unchecked
final A[] selectorAnnotations = (A[]) valuesMethod.invoke( selectorsAnnotation );
for ( A groupedSelectorAnnotation : selectorAnnotations ) {
action.accept( groupedSelectorAnnotation );
}
}
catch (Exception e) {
throw new RuntimeException( e );
}
}
}
private static ClassLoader buildEnhancerClassLoader(
EnhancementContext enhancerContext,
List selectors) {
return new EnhancingClassLoader(
Environment.getBytecodeProvider().getEnhancer( enhancerContext ),
selectors
);
}
private static class EnhancingClassLoader extends ClassLoader {
private static final String debugOutputDir = System.getProperty( "java.io.tmpdir" );
private final Enhancer enhancer;
private final List selectors;
public EnhancingClassLoader(Enhancer enhancer, List selectors) {
this.enhancer = enhancer;
this.selectors = selectors;
}
public Class loadClass(String name) throws ClassNotFoundException {
for ( EnhancementSelector selector : selectors ) {
if ( selector.select( name ) ) {
final Class c = findLoadedClass( name );
if ( c != null ) {
return c;
}
try ( InputStream is = getResourceAsStream( name.replace( '.', '/' ) + ".class" ) ) {
if ( is == null ) {
throw new ClassNotFoundException( name + " not found" );
}
byte[] original = new byte[is.available()];
try ( BufferedInputStream bis = new BufferedInputStream( is ) ) {
bis.read( original );
}
byte[] enhanced = enhancer.enhance( name, original );
if ( enhanced == null ) {
return defineClass( name, original, 0, original.length );
}
File f = new File( debugOutputDir + File.separator + name.replace( ".", File.separator ) + ".class" );
f.getParentFile().mkdirs();
f.createNewFile();
try ( FileOutputStream out = new FileOutputStream( f ) ) {
out.write( enhanced );
}
return defineClass( name, enhanced, 0, enhanced.length );
}
catch ( Throwable t ) {
throw new ClassNotFoundException( name + " not found", t );
}
}
}
return getParent().loadClass( name );
}
}
private static ClassLoader getEnhancerClassLoader(EnhancementContext context, String packageName) {
return buildEnhancerClassLoader( context, Collections.singletonList( new PackageSelector( packageName ) ) );
}
@Override
protected void runChild(Runner runner, RunNotifier notifier) {
// This is ugly but, for now, ORM class loading is inconsistent.
// It sometimes use ClassLoaderService which takes into account AvailableSettings.CLASSLOADERS, and sometimes
// ReflectHelper#classForName() which uses the TCCL.
// See https://hibernate.atlassian.net/browse/HHH-13136 for more information.
ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(
( (ParentRunner) runner ).getTestClass().getJavaClass().getClassLoader() );
super.runChild( runner, notifier );
}
finally {
Thread.currentThread().setContextClassLoader( originalClassLoader );
}
}
}