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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.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javassist.bytecode.Descriptor;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
public class Ancestries implements Serializable
{
private static final long serialVersionUID = 738687982126844179L;
private Map<String,String> m_superclasses;
public Ancestries( )
{
m_superclasses = Maps.newHashMap();
}
public void addSuperclass( String className, String superclassName )
{
className = Descriptor.toJvmName( className );
superclassName = Descriptor.toJvmName( superclassName );
if( className.equals( superclassName ) )
{
throw new IllegalArgumentException( "Class cannot be its own superclass! " + className );
}
if( !isJre( className ) && !isJre( superclassName ) )
{
m_superclasses.put( className, superclassName );
}
}
public String getSuperclassName( String className )
{
return m_superclasses.get( className );
}
public List<String> getAncestry( String className )
{
List<String> ancestors = new ArrayList<String>();
while( className != null )
{
className = getSuperclassName( className );
if( className != null )
{
ancestors.add( className );
}
}
return ancestors;
}
public List<String> getSubclasses( String className )
{
// linear search is fast enough for now
List<String> subclasses = Lists.newArrayList();
for( Map.Entry<String,String> entry : m_superclasses.entrySet() )
{
String subclass = entry.getKey();
String superclass = entry.getValue();
if( className.equals( superclass ) )
{
subclasses.add( subclass );
}
}
return subclasses;
}
private boolean isJre( String className )
{
return className.startsWith( "java/" )
|| className.startsWith( "javax/" );
}
}
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