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   package edu.psu.geovista.data.geog;
   
   /* -------------------------------------------------------------------
    GeoVISTA Center (Penn State, Dept. of Geography)
    Java source file for the class ShapeFileDataReader
    Copyright (c), 2002, GeoVISTA Center
    All Rights Reserved.
    Original Author: Xiping Dai
    $Author: hardisty $
   $Id: CSVFileDataReader.java,v 1.1 2003/04/25 17:44:57 hardisty Exp $
   $Date: 2003/04/25 17:44:57 $
   Reference:		Document no:
   ___				___
   -------------------------------------------------------------------  *
   */
  
  import java.awt.event.*;
  import java.io.*;
  
  import javax.swing.event.*;
  
  import edu.psu.geovista.io.csv.*;
  
  /***
   * Takes a file name and returns an Object[] with:
   * Object[0] = names of variables
   * 0bject[1] = data (double[], int[], or String[])
   * 0bject[1] = data (double[], int[], or String[])
   * ...
   * Object[n-1] = the shapefile data
   *
   * also see DBaseFile, ShapeFile
   *
   */
  
  import edu.psu.geovista.ui.event.*;
  
  public class CSVFileDataReader {
  
  	public static final String COMMAND_DATA_SET_MADE = "dataMade";
  
  	private DataSetForApps dataForApps;
  	private String fileName;
  	private EventListenerList listenerList;
  
      public CSVFileDataReader() {
  		listenerList = new EventListenerList();
      }
  
  
  	private DataSetForApps makeDataSetForApps(String fileName){
  
  		Class cl = this.getClass();
  		String csvFileName = fileName + ".csv";
  		//InputStream isCSV = cl.getResourceAsStream("resources/states48.csv");
  		Object[] csvData = null;
  
  		try {
  
  			GeogCSVReader csv = new GeogCSVReader();
  			FileInputStream inStream = new FileInputStream(csvFileName);
  			csvData = csv.readFile(inStream);
  			//shpData = new Object[dbData.length + 1];
  			//for (int i = 0; i < dbData.length; i++) {
  			//  shpData[i] = dbData[i];
  			//}
  			//shpData[dbData.length] = new ShapeFile(fileName + ".shp");
  		} catch (Exception ex) {
  			ex.printStackTrace();
  		}
  
  		//this.fireActionPerformed(COMMAND_DATA_SET_MADE);
  		this.dataForApps = new DataSetForApps();
  		dataForApps.setDataObject(csvData);
  		return dataForApps;
  	}
  
  	private Object[] makeDataSet(String fileName){
  		this.makeDataSetForApps(fileName);
  		return dataForApps.getDataObjectOriginal();
  	}
  
  	private String removeExtension(String fileName){
  	  String removed = fileName;
  	  int index = fileName.lastIndexOf(".");
  	  if (index > -1) { //if it was found
  		int len = fileName.length();
  		removed = fileName.substring(0,index);
  	  }
  	  return removed;
  	}
  
  	  public void setDataForApps (DataSetForApps dataForApps) {
  		this.dataForApps = dataForApps;
  	  }
  	  public DataSetForApps getDataForApps() {
  		return this.dataForApps;
  	  }
  
 	  public Object[] getDataSet() {
 		  //System.out.print("get data set...");
 		return this.dataForApps.getDataObjectOriginal();
 	  }
 
 	  public void setFileName (String fileName) {
 		this.fileName = fileName;
 		this.fileName = this.removeExtension(fileName);
 		//System.out.println(fileName);
 		this.dataForApps = this.makeDataSetForApps(this.fileName);
 		this.fireActionPerformed(COMMAND_DATA_SET_MADE);
 		this.fireDataSetChanged(this.dataForApps.getDataObjectOriginal());
 		 //for (int i = 0; i < dataSet.length; i++) {
 		 //   System.out.println(dataSet[i]);
 		  //}
 	  }
 	  public String getFileName () {
 		return this.fileName;
 	  }
 
 	private void writeObject(ObjectOutputStream oos) throws IOException {
 	  oos.defaultWriteObject();
 	}
 	private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
 	  ois.defaultReadObject();
 	}
 	/***
 	 * implements ActionListener
 	 */
 	public void addActionListener(ActionListener l) {
 	  listenerList.add(ActionListener.class, l);
 	}
 
 	/***
 	 * removes an ActionListener from the button
 	 */
 	public void removeActionListener(ActionListener l) {
 	  listenerList.remove(ActionListener.class, l);
 	}
 
 	/***
 	 * Notify all listeners that have registered interest for
 	 * notification on this event type. The event instance
 	 * is lazily created using the parameters passed into
 	 * the fire method.
 	 * @see EventListenerList
 	 */
 	protected void fireActionPerformed(String command) {
 	 // Guaranteed to return a non-null array
 	 Object[] listeners = listenerList.getListenerList();
 	 ActionEvent e = null;
 	 // Process the listeners last to first, notifying
 	 // those that are interested in this event
 	 for (int i = listeners.length - 2; i >= 0; i -= 2) {
 	   if (listeners[i] == ActionListener.class) {
 		 // Lazily create the event:
 		 if (e == null) {
 		   e = new ActionEvent(this,
 					  ActionEvent.ACTION_PERFORMED,
 					  command);
 		 }
 		 ((ActionListener)listeners[i + 1]).actionPerformed(e);
 		}
 	  }
   }
 
   /***
    * implements DataSetListener
    */
   public void addDataSetListener(DataSetListener l) {
 	listenerList.add(DataSetListener.class, l);
   }
 
   /***
    * removes an DataSetListener from the button
    */
   public void removeDataSetListener(DataSetListener l) {
 	listenerList.remove(DataSetListener.class, l);
   }
 
   /***
    * Notify all listeners that have registered interest for
    * notification on this event type. The event instance
    * is lazily created using the parameters passed into
    * the fire method.
    * @see EventListenerList
    */
   protected void fireDataSetChanged(Object[] dataSet) {
 	  //System.out.println("ShpToShp.fireDataSetChanged, Hi!!");
    // Guaranteed to return a non-null array
    Object[] listeners = listenerList.getListenerList();
    DataSetEvent e = null;
    // Process the listeners last to first, notifying
    // those that are interested in this event
    for (int i = listeners.length - 2; i >= 0; i -= 2) {
 	 if (listeners[i] == DataSetListener.class) {
 	   // Lazily create the event:
 	   if (e == null) {
 		 e = new DataSetEvent(this,dataSet);
 
 	   }
 	   ((DataSetListener)listeners[i + 1]).dataSetChanged(e);
 	  }
 	}
   }
 
 }