org.hibernate.testing.bytecode.enhancement.DecompileUtils Maven / Gradle / Ivy
/*
* 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.File;
import javax.tools.JavaFileObject;
import org.hibernate.internal.CoreLogging;
import org.hibernate.internal.CoreMessageLogger;
//
//import com.sun.tools.classfile.ConstantPoolException;
//import com.sun.tools.javap.JavapTask;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
/**
* utility class to use in bytecode enhancement tests
*
* @author Luis Barreiro
*/
public abstract class DecompileUtils {
private static final CoreMessageLogger log = CoreLogging.messageLogger( DecompileUtils.class );
// Had to gut this because Java does not make JAVAP available via ToolProvider
// instead on has to rely on tools.jar classes directly :(
public static void decompileDumpedClass(String workingDir, String className) {
// try {
// JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
// StandardJavaFileManager fileManager = compiler.getStandardFileManager( null, null, null );
// fileManager.setLocation(
// StandardLocation.CLASS_OUTPUT,
// Collections.singletonList( new File( workingDir ) )
// );
//
// JavapTask javapTask = new JavapTask();
// String filename = workingDir + File.separator + getFilenameForClassName( className );
// for ( JavaFileObject jfo : fileManager.getJavaFileObjects( filename ) ) {
// try {
// Set interfaceNames = new HashSet();
// Set fieldNames = new HashSet();
// Set methodNames = new HashSet();
//
// JavapTask.ClassFileInfo info = javapTask.read( jfo );
//
// log.infof( "decompiled class [%s]", info.cf.getName() );
//
// for ( int i : info.cf.interfaces ) {
// interfaceNames.add( info.cf.constant_pool.getClassInfo( i ).getName() );
// log.debugf( "declared iFace = ", info.cf.constant_pool.getClassInfo( i ).getName() );
// }
// for ( com.sun.tools.classfile.Field f : info.cf.fields ) {
// fieldNames.add( f.getName( info.cf.constant_pool ) );
// log.debugf( "declared field = ", f.getName( info.cf.constant_pool ) );
// }
// for ( com.sun.tools.classfile.Method m : info.cf.methods ) {
// methodNames.add( m.getName( info.cf.constant_pool ) );
// log.debugf( "declared method = ", m.getName( info.cf.constant_pool ) );
// }
//
// // checks signature against known interfaces
// if ( interfaceNames.contains( PersistentAttributeInterceptor.class.getName() ) ) {
// assertTrue( fieldNames.contains( EnhancerConstants.INTERCEPTOR_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.INTERCEPTOR_GETTER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.INTERCEPTOR_SETTER_NAME ) );
// }
// if ( interfaceNames.contains( ManagedEntity.class.getName() ) ) {
// assertTrue( methodNames.contains( EnhancerConstants.ENTITY_INSTANCE_GETTER_NAME ) );
//
// assertTrue( fieldNames.contains( EnhancerConstants.ENTITY_ENTRY_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.ENTITY_ENTRY_GETTER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.ENTITY_ENTRY_SETTER_NAME ) );
//
// assertTrue( fieldNames.contains( EnhancerConstants.PREVIOUS_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.PREVIOUS_GETTER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.PREVIOUS_SETTER_NAME ) );
//
// assertTrue( fieldNames.contains( EnhancerConstants.NEXT_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.NEXT_GETTER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.NEXT_SETTER_NAME ) );
// }
// if ( interfaceNames.contains( SelfDirtinessTracker.class.getName() ) ) {
// assertTrue( fieldNames.contains( EnhancerConstants.TRACKER_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_CHANGER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_GET_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_CLEAR_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_HAS_CHANGED_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_SUSPEND_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_COLLECTION_GET_NAME ) );
// }
// if ( interfaceNames.contains( CompositeTracker.class.getName() ) ) {
// assertTrue( fieldNames.contains( EnhancerConstants.TRACKER_COMPOSITE_FIELD_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_COMPOSITE_SET_OWNER ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_COMPOSITE_SET_OWNER ) );
// }
// if ( interfaceNames.contains( CompositeOwner.class.getName() ) ) {
// assertTrue( fieldNames.contains( EnhancerConstants.TRACKER_CHANGER_NAME ) );
// assertTrue( methodNames.contains( EnhancerConstants.TRACKER_CHANGER_NAME ) );
// }
// }
// catch (ConstantPoolException e) {
// e.printStackTrace();
// }
// }
// }
// catch (IOException ioe) {
// assertNull( "Failed to open class file", ioe );
// }
// catch (RuntimeException re) {
// log.warnf( re, "WARNING: UNABLE DECOMPILE DUE TO %s", re.getMessage() );
// }
}
private static String getFilenameForClassName(String className) {
return className.replace( '.', File.separatorChar ) + JavaFileObject.Kind.CLASS.extension;
}
}