content: //  Copyright 2006, Clark N. Hobbie
  //
  //  This file is part of the util library.
  //
  //  The util library is free software; you can redistribute it and/or modify it
  //  under the terms of the Lesser GNU General Public License as published by
  //  the Free Software Foundation; either version 2.1 of the License, or (at
  //  your option) any later version.
  //
  //  The util 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 Lesser GNU General Public
  //  License for more details.
  //
  //  You should have received a copy of the Lesser GNU General Public License
  //  along with the util library; if not, write to the Free Software Foundation,
  //  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  //
  /*
   * Created on Jan 4, 2004
   *
   * To change the template for this generated file go to
   * Window - Preferences - Java - Code Generation - Code and Comments
   */
  package com.lts.xml;
  
  import java.io.InputStream;
  
  import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  
  import org.w3c.dom.Document;
  
  import com.lts.LTSException;
  
  /**
   * @author cnh
   *
   * To change the template for this generated type comment go to
   * Window - Preferences - Java - Code Generation - Code and Comments
   */
  public class Xerces 
  {
  	protected DocumentBuilder myBuilder;
  	
  	public DocumentBuilder getBuilder()
  		throws LTSException
  	{
  		if (null == myBuilder)
  			myBuilder = createDocumentBuilder();
  		
  		return myBuilder;
  	}
  	
  	
  	public DocumentBuilder createDocumentBuilder()
  		throws LTSException
  	{
  		try 
  		{
  			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
  			DocumentBuilder builder = factory.newDocumentBuilder();
  			return builder;
  		}
  		catch (RuntimeException e)
  		{
  			throw e;
  		}
  		catch (Exception e)
  		{
  			throw new LTSException (
  				"Error trying to get Xerces document builder.",
  				e
  			);
  		}
  	}
  	
  	
  	public Document parse (String fname)
  		throws LTSException
  	{
  		try 
  		{
  			Document document = getBuilder().parse(fname);
  			return document;
  		}
  		catch (RuntimeException e)
  		{
  			throw e;
  		}
  		catch (LTSException e)
  		{
  			throw e;
  		}
  		catch (Exception e)
  		{
  			throw new LTSException ("Error parsing file: " + fname, e);
  		}
  	}
  	
  	
  	public Document parse (InputStream istream)
  		throws LTSException
  	{
  		try
  		{
  			return getBuilder().parse(istream);
  		}
  		catch (RuntimeException e)
  		{
  			throw e;
  		}
  		catch (LTSException e)
  		{
  			throw e;
  		}
  		catch (Exception e)
  		{
  			throw new LTSException (
  				"Error trying to parse input stream.",
  				e
  			);
  		}
  	}
  }
  