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The open-source Java obfuscation tool working with Ant and Gradle by yWorks - the diagramming experts
There is a newer version: 2.10.0
/**
 * YGuard -- an obfuscation library for Java(TM) classfiles.
 *
 * Original Copyright (c) 1999 Mark Welsh ([email protected])
 * Modifications Copyright (c) 2002 yWorks GmbH ([email protected])
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * The author may be contacted at [email protected] 
 *
 * Java and all Java-based marks are trademarks or registered 
 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
 */
package com.yworks.yguard.obf;

import java.io.*;
import java.lang.reflect.*;
import java.util.*;
import com.yworks.yguard.obf.classfile.*;

/**
 * Base to method and field tree items.
 *
 * @author      Mark Welsh
 */
abstract public class MdFd extends TreeItem
{
    // Constants -------------------------------------------------------------


    // Fields ----------------------------------------------------------------
    private String descriptor = null;
    private ObfuscationConfig obfuscationConfig;


    // Class Methods ---------------------------------------------------------


    // Instance Methods ------------------------------------------------------
    /** Ctor. */
    public MdFd(TreeItem parent, boolean isSynthetic, String name, String descriptor, int access, ObfuscationConfig obfuscationConfig)
    {
        super(parent, name);
        this.descriptor = descriptor;
      this.obfuscationConfig = obfuscationConfig;
      this.access = access;

        this.isSynthetic = isSynthetic;
        if (name.equals("") || descriptor.equals("") || !(parent instanceof Cl))
        {
            System.err.println("Internal error: method/field must have name and descriptor, and have Class or Interface as parent");
        }

        // Disallow obfuscation of 'Synthetic' and native methods and fields
        if (isSynthetic || Modifier.isNative(access))
        {
            setOutName(getInName());
        }
    }

  public ObfuscationConfig getObfuscationConfig() {
    return obfuscationConfig;
  }

  /** Return the method or field descriptor String. */
    public String getDescriptor() {return descriptor;}

    /** Return the display name for field. */
    public String toString()
    {
        StringBuffer sb = new StringBuffer();
        int modifiers = getModifiers();
        if (Modifier.isAbstract(modifiers))
        {
            sb.append("abstract ");
        }
        if (Modifier.isSynchronized(modifiers))
        {
            sb.append("synchronized ");
        }
        if (Modifier.isTransient(modifiers))
        {
            sb.append("transient ");
        }
        if (Modifier.isVolatile(modifiers))
        {
            sb.append("volatile ");
        }
        if (Modifier.isNative(modifiers))
        {
            sb.append("native ");
        }
        if (Modifier.isPublic(modifiers))
        {
            sb.append("public ");
        }
        if (Modifier.isProtected(modifiers))
        {
            sb.append("protected ");
        }
        if (Modifier.isPrivate(modifiers))
        {
            sb.append("private ");
        }
        if (Modifier.isStatic(modifiers))
        {
            sb.append("static ");
        }
        if (Modifier.isFinal(modifiers))
        {
            sb.append("final ");
        }
        sb.append(getReturnTypeName());
        sb.append(getInName());
        sb.append(getDescriptorName());
        return sb.toString();
    }

    /** Return the display name of the return type. */
    protected String getReturnTypeName()
    {
        String[] types = parseTypes();
        return (types.length > 0 ? types[types.length - 1] : "") + " ";
    }

    /** Return the display name of the descriptor types. */
    abstract protected String getDescriptorName();

    /** Return the parsed descriptor types array. */
    private String[] parsedTypes = null;
    protected String[] parseTypes()
    {
        if (parsedTypes == null)
        {
            try
            {
                parsedTypes = ClassFile.parseDescriptor(getDescriptor(), true);
            }
            catch (Exception e)
            {
                parsedTypes = null;
            }
        }
        return parsedTypes;
    }
}