content: package com.japisoft.editix.action.file.imp;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.dom.DOMSource;
  import javax.xml.transform.stream.StreamResult;
  
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program 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.
  
  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class JDBCDriverModel {
  
  	private List<JDBCDriver> data = null;
  	
  	public void addDriver( JDBCDriver driver ) {
  		if ( data == null )
  			data = new ArrayList<JDBCDriver>();
  		data.add( driver );
  		fireModelUpdated();
  	}
  	
  	public void removeDriver( JDBCDriver driver ) {
  		if ( data != null )
  			data.remove( driver );
  		fireModelUpdated();
  	}
  
  	private JDBCDriverModelListener listener = null;
  	
  	public void setListener( JDBCDriverModelListener listener ) {
  		this.listener = listener;
  	}
  
  	private void fireModelUpdated() {
  		if ( listener != null ) {
  			listener.modelUpdated();
  		}
  	}
  
  	public int size() {
  		if ( data == null ) {
  			return 0;
  		}
  		return data.size();
  	}
  
  	public JDBCDriver getDriver( int index ) {
  		if ( data == null )
  			return null;
  		return data.get( index );
  	}
  
  	public void write( File output ) throws Exception {
  		if ( data != null ) {
  			if ( data.size() > 0 ) {
  				Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
  				Element root = doc.createElement( "jdbcdrivers" );
  				doc.appendChild( root );
  				for ( int i = 0; i < size(); i++ ) {
  					root.appendChild( getDriver( i ).toXML( doc ) );
  				}
  				Transformer t = TransformerFactory.newInstance().newTransformer();
  				t.transform( 
  					new DOMSource( doc ), 
  					new StreamResult( output ) 
  				);
  			}
  		}
  	}
  
  	public void read( File input ) throws Exception {
  		DocumentBuilder db = 
  			DocumentBuilderFactory.newInstance().newDocumentBuilder();
  		Document doc = db.parse( input );
  		Element root = doc.getDocumentElement();
  		data = null;
  		NodeList nl = root.getChildNodes();
  		for ( int i = 0; i < nl.getLength(); i++ ) {
  			Node n = nl.item( i );
  			if ( n instanceof Element ) {
  				addDriver( 
  					new JDBCDriver( 
  						( Element )n ) 
  				);
  			}
  		}
  	}
  
  }
  