Package net.sf.rej.obfuscation

Source Code of net.sf.rej.obfuscation.LocalVarStripper

/* Copyright (C) 2004-2007 Sami Koivu
*
* 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
package net.sf.rej.obfuscation;

import net.sf.rej.gui.IterationContext;
import net.sf.rej.gui.IteratorAgentAdapter;
import net.sf.rej.gui.SystemFacade;
import net.sf.rej.gui.Undoable;
import net.sf.rej.gui.action.RemoveAttributeAction;
import net.sf.rej.java.attribute.Attribute;
import net.sf.rej.java.attribute.Attributes;
import net.sf.rej.java.attribute.LocalVariableTableAttribute;

/**
* This class removes local variable information from classfiles.
*
* @author Sami Koivu
*/
public abstract class LocalVarStripper extends IteratorAgentAdapter {
 
  private boolean batchMode = false;
 
  public LocalVarStripper(boolean batchMode) {
    this.batchMode = batchMode;
  }

  @Override
  public void processAttribute(IterationContext ic, Attribute attr) {
    if (attr instanceof LocalVariableTableAttribute) {
      LocalVariableTableAttribute lvAttr = (LocalVariableTableAttribute) attr;
      Attributes attrs = ic.getCodeAttribute().getAttributes();
      Undoable u = new RemoveAttributeAction(attrs, lvAttr);
      if (this.batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());
      }
    }
  }

  public String getName() {
    return "Local variable stripper";
  }

}
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