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/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.convert;
import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.jar.JarFile;
import javassist.CtClass;
import com.beust.jcommander.internal.Lists;
import com.beust.jcommander.internal.Maps;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Multimap;
import cuchaz.enigma.analysis.JarClassIterator;
import cuchaz.enigma.mapping.ClassEntry;
public class ClassMapper
{
private int m_numSourceClasses;
private int m_numDestClasses;
private Multimap<ClassIdentity,ClassIdentity> m_sourceClasses;
private Multimap<ClassIdentity,ClassIdentity> m_destClasses;
private List<ClassIdentity> m_unmatchedSourceClasses;
private List<ClassIdentity> m_unmatchedDestClasses;
private Map<ClassEntry,ClassIdentity> m_sourceKeyIndex;
public static void main( String[] args )
throws IOException
{
// TEMP
JarFile fromJar = new JarFile( new File( "input/1.8-pre1.jar" ) );
JarFile toJar = new JarFile( new File( "input/1.8-pre2.jar" ) );
ClassMapper mapper = new ClassMapper( fromJar, toJar );
System.out.println( String.format( "Mapped %d/%d source classes (%d unmatched) to %d/%d dest classes (%d unmatched)",
mapper.m_sourceClasses.size(), mapper.m_numSourceClasses, mapper.m_unmatchedSourceClasses.size(),
mapper.m_destClasses.size(), mapper.m_numDestClasses, mapper.m_unmatchedDestClasses.size()
) );
}
public ClassMapper( JarFile sourceJar, JarFile destJar )
{
m_numSourceClasses = JarClassIterator.getClassEntries( sourceJar ).size();
m_numDestClasses = JarClassIterator.getClassEntries( destJar ).size();
// compute identities for the source classes
m_sourceClasses = ArrayListMultimap.create();
m_sourceKeyIndex = Maps.newHashMap();
for( CtClass c : JarClassIterator.classes( sourceJar ) )
{
ClassIdentity sourceClass = new ClassIdentity( c );
m_sourceClasses.put( sourceClass, sourceClass );
m_sourceKeyIndex.put( sourceClass.getClassEntry(), sourceClass );
}
// match the dest classes to the source classes
m_destClasses = ArrayListMultimap.create();
m_unmatchedDestClasses = Lists.newArrayList();
for( CtClass c : JarClassIterator.classes( destJar ) )
{
ClassIdentity destClass = new ClassIdentity( c );
Collection<ClassIdentity> matchedSourceClasses = m_sourceClasses.get( destClass );
if( matchedSourceClasses.isEmpty() )
{
// unmatched dest class
m_unmatchedDestClasses.add( destClass );
}
else
{
ClassIdentity sourceClass = matchedSourceClasses.iterator().next();
m_destClasses.put( sourceClass, destClass );
}
}
// get unmatched source classes
m_unmatchedSourceClasses = Lists.newArrayList();
for( ClassIdentity sourceClass : m_sourceClasses.keySet() )
{
Collection<ClassIdentity> matchedSourceClasses = m_sourceClasses.get( sourceClass );
Collection<ClassIdentity> matchedDestClasses = m_destClasses.get( sourceClass );
if( matchedDestClasses.isEmpty() )
{
m_unmatchedSourceClasses.add( sourceClass );
}
else if( matchedDestClasses.size() > 1 )
{
// warn about identity collisions
System.err.println( String.format( "WARNING: identity collision:\n\tSource: %s\n\t Dest: %s",
getClassEntries( matchedSourceClasses ),
getClassEntries( matchedDestClasses )
) );
}
}
}
public Map.Entry<Collection<ClassEntry>,Collection<ClassEntry>> getMapping( ClassEntry sourceEntry )
{
// TODO
return null;
}
private Collection<ClassEntry> getClassEntries( Collection<ClassIdentity> classes )
{
List<ClassEntry> entries = Lists.newArrayList();
for( ClassIdentity c : classes )
{
entries.add( c.getClassEntry() );
}
return entries;
}
}
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