import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

/**
 * 
 * @author gtowell
 * File: TokenFinder.java
 * Desc: Class to to wrap a method that searches for a token in a file that is 
 * split by a given character
 */
public class TokenFinder
{
	/**
	 * The filename to search in
	 */
    private String filename;
    
    /**
     * The thing on which to split.
     */
    private String splitter;
    
    /**
     * The token to look for
     */
    private String target;
    
    /**
     * Constructor.  Just takes and stores the parameters
     * @param fName the file to be searched
     * @param split the thing on which to split lines.  Usually a single character, but can be any string
     * @param targt the thing to look for after splitting lines
     */
    public TokenFinder(String fName, String split, String targt)
    {
        this.filename=fName;
        this.splitter=split;
        this.target=targt;
    }
    
    /**
     * Actually do the work. 
     * @return an integer of the form 10000*lineNumber + token Number
     */
    public int doWork()
    {
    	if (this.filename==null || this.splitter==null || this.splitter==null)
    	{
    		return 0;
    	}
        int lineNumber=0;
        Scanner fileScanner=null;
        try
        {
            fileScanner = new Scanner(new File(this.filename));
            while(fileScanner.hasNextLine())
            {
                String line = fileScanner.nextLine();
                lineNumber++;
                Scanner lineScanner = new Scanner(line);
                lineScanner.useDelimiter(this.splitter);
                int tokenNumber=0;
                while (lineScanner.hasNext())
                {
                    String linePart=lineScanner.next();
                    tokenNumber++;
                    System.out.println(lineNumber + " " + tokenNumber + " " + linePart);
                    if (linePart.equals(this.target))
                    {
                    	lineScanner.close();
                        return lineNumber*10000+tokenNumber;
                    }
                }
                lineScanner.close();
            }
        } 
        catch (FileNotFoundException e)
        {
            e.printStackTrace();
        }
        finally
        {
            if (fileScanner!=null)
                fileScanner.close();
        }
        return 0;
    }
}