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path: root/src/cuchaz/enigma/analysis/EntryRenamer.java
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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.analysis;

import java.util.AbstractMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.Sets;

import cuchaz.enigma.mapping.ArgumentEntry;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.ConstructorEntry;
import cuchaz.enigma.mapping.Entry;
import cuchaz.enigma.mapping.FieldEntry;
import cuchaz.enigma.mapping.MethodEntry;

public class EntryRenamer
{
	public static <T> void renameClassesInSet( Map<String,String> renames, Set<T> set )
	{
		List<T> entries = Lists.newArrayList();
		for( T val : set )
		{
			entries.add( renameClassesInThing( renames, val ) );
		}
		set.clear();
		set.addAll( entries );
	}
	
	public static <Key,Val> void renameClassesInMap( Map<String,String> renames, Map<Key,Val> map )
	{
		// for each key/value pair...
		Set<Map.Entry<Key,Val>> entriesToAdd = Sets.newHashSet();
		for( Map.Entry<Key,Val> entry : map.entrySet() )
		{
			entriesToAdd.add( new AbstractMap.SimpleEntry<Key,Val>(
				renameClassesInThing( renames, entry.getKey() ),
				renameClassesInThing( renames, entry.getValue() )
			) );
		}
		map.clear();
		for( Map.Entry<Key,Val> entry : entriesToAdd )
		{
			map.put( entry.getKey(), entry.getValue() );
		}
	}
	
	public static <Key,Val> void renameClassesInMultimap( Map<String,String> renames, Multimap<Key,Val> map )
	{
		// for each key/value pair...
		Set<Map.Entry<Key,Val>> entriesToAdd = Sets.newHashSet();
		for( Map.Entry<Key,Val> entry : map.entries() )
		{
			entriesToAdd.add( new AbstractMap.SimpleEntry<Key,Val>(
				renameClassesInThing( renames, entry.getKey() ),
				renameClassesInThing( renames, entry.getValue() )
			) );
		}
		map.clear();
		for( Map.Entry<Key,Val> entry : entriesToAdd )
		{
			map.put( entry.getKey(), entry.getValue() );
		}
	}
	
	public static <Key,Val> void renameMethodsInMultimap( Map<MethodEntry,MethodEntry> renames, Multimap<Key,Val> map )
	{
		// for each key/value pair...
		Set<Map.Entry<Key,Val>> entriesToAdd = Sets.newHashSet();
		for( Map.Entry<Key,Val> entry : map.entries() )
		{
			entriesToAdd.add( new AbstractMap.SimpleEntry<Key,Val>(
				renameMethodsInThing( renames, entry.getKey() ),
				renameMethodsInThing( renames, entry.getValue() )
			) );
		}
		map.clear();
		for( Map.Entry<Key,Val> entry : entriesToAdd )
		{
			map.put( entry.getKey(), entry.getValue() );
		}
	}
	
	public static <Key,Val> void renameMethodsInMap( Map<MethodEntry,MethodEntry> renames, Map<Key,Val> map )
	{
		// for each key/value pair...
		Set<Map.Entry<Key,Val>> entriesToAdd = Sets.newHashSet();
		for( Map.Entry<Key,Val> entry : map.entrySet() )
		{
			entriesToAdd.add( new AbstractMap.SimpleEntry<Key,Val>(
				renameMethodsInThing( renames, entry.getKey() ),
				renameMethodsInThing( renames, entry.getValue() )
			) );
		}
		map.clear();
		for( Map.Entry<Key,Val> entry : entriesToAdd )
		{
			map.put( entry.getKey(), entry.getValue() );
		}
	}
	
	@SuppressWarnings( "unchecked" )
	public static <T> T renameMethodsInThing( Map<MethodEntry,MethodEntry> renames, T thing )
	{
		if( thing instanceof MethodEntry )
		{
			MethodEntry methodEntry = (MethodEntry)thing;
			MethodEntry newMethodEntry = renames.get( methodEntry );
			if( newMethodEntry != null )
			{
				return (T)new MethodEntry(
					methodEntry.getClassEntry(),
					newMethodEntry.getName(),
					methodEntry.getSignature()
				);
			}
			return thing;
		}
		else if( thing instanceof ArgumentEntry )
		{
			ArgumentEntry argumentEntry = (ArgumentEntry)thing;
			return (T)new ArgumentEntry(
				renameMethodsInThing( renames, argumentEntry.getBehaviorEntry() ),
				argumentEntry.getIndex(),
				argumentEntry.getName()
			);
		}
		else if( thing instanceof EntryReference )
		{
			EntryReference<Entry,Entry> reference = (EntryReference<Entry,Entry>)thing;
			reference.entry = renameMethodsInThing( renames, reference.entry );
			reference.context = renameMethodsInThing( renames, reference.context );
			return thing;
		}
		return thing;
	}

	@SuppressWarnings( "unchecked" )
	public static <T> T renameClassesInThing( Map<String,String> renames, T thing )
	{
		if( thing instanceof String )
		{
			String stringEntry = (String)thing;
			if( renames.containsKey( stringEntry ) )
			{
				return (T)renames.get( stringEntry );
			}
		}
		else if( thing instanceof ClassEntry )
		{
			ClassEntry classEntry = (ClassEntry)thing;
			return (T)new ClassEntry( renameClassesInThing( renames, classEntry.getClassName() ) );
		}
		else if( thing instanceof FieldEntry )
		{
			FieldEntry fieldEntry = (FieldEntry)thing;
			return (T)new FieldEntry(
				renameClassesInThing( renames, fieldEntry.getClassEntry() ),
				fieldEntry.getName()
			);
		}
		else if( thing instanceof ConstructorEntry )
		{
			ConstructorEntry constructorEntry = (ConstructorEntry)thing;
			return (T)new ConstructorEntry(
				renameClassesInThing( renames, constructorEntry.getClassEntry() ),
				constructorEntry.getSignature()
			);
		}
		else if( thing instanceof MethodEntry )
		{
			MethodEntry methodEntry = (MethodEntry)thing;
			return (T)new MethodEntry(
				renameClassesInThing( renames, methodEntry.getClassEntry() ),
				methodEntry.getName(),
				methodEntry.getSignature()
			);
		}
		else if( thing instanceof ArgumentEntry )
		{
			ArgumentEntry argumentEntry = (ArgumentEntry)thing;
			return (T)new ArgumentEntry(
				renameClassesInThing( renames, argumentEntry.getBehaviorEntry() ),
				argumentEntry.getIndex(),
				argumentEntry.getName()
			);
		}
		else if( thing instanceof EntryReference )
		{
			EntryReference<Entry,Entry> reference = (EntryReference<Entry,Entry>)thing;
			reference.entry = renameClassesInThing( renames, reference.entry );
			reference.context = renameClassesInThing( renames, reference.context );
			return thing;
		}
		
		return thing;
	}
}