code: /******************************************************************************
   *
   *	Copyright (c) 2017-2022, INTO-CPS Association,
   *	c/o Professor Peter Gorm Larsen, Department of Engineering
   *	Finlandsgade 22, 8200 Aarhus N.
   *
   *	This file is part of the INTO-CPS toolchain.
   *
   *	xsd2vdm is free software: you can redistribute it and/or modify
   *	it under the terms of the GNU General Public License as published by
   *	the Free Software Foundation, either version 3 of the License, or
   *	(at your option) any later version.
   *
   *	xsd2vdm 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 General Public License for more details.
   *
   *	You should have received a copy of the GNU General Public License
   *	along with xsd2vdm. If not, see <http://www.gnu.org/licenses/>.
   *	SPDX-License-Identifier: GPL-3.0-or-later
   *
   ******************************************************************************/
  
  package values;
  
  import java.io.File;
  import java.net.URI;
  
  import org.xml.sax.Locator;
  
  import types.Type;
  
  abstract public class VDMValue
  {
  	protected final String file;
  	protected final int line;
  	protected final Type type;
  	
  	protected VDMValue(Type type, Locator locator)
  	{
  		this.type = type;
  		
  		if (locator != null)
  		{
  			this.file = getFile(locator);
  			this.line = locator.getLineNumber();
  		}
  		else
  		{
  			this.file = "?";
  			this.line = 0;
  		}
  	}
  
  	private String getFile(Locator locator)
  	{
  		try
  		{
  			String uri = locator.getSystemId();
  			return new File(new URI(uri)).getName();
  		}
  		catch (Exception e)
  		{
  			return "?";
  		}
  	}
  
  	abstract public String toVDM(String indent);
  
  	public Type getType()
  	{
  		return type;
  	}
  
  	public boolean hasAny()
  	{
  		return false;
  	}
  }
  