FileLineCount broken up into blocks

FileLineCount2.java

import sun.reflect.generics.reflectiveObjects.NotImplementedException;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Iterator;
import java.util.concurrent.atomic.AtomicInteger;


/**
 * Reads a file from the command line parameter and counts the number of lines in it
 * @author Sriram
 */
public class FileLineCount2
{
    private static class FileConnector implements Iterator, AutoCloseable
    {
        private final BufferedReader br;
        private String nextLine;


        public FileConnector( String fileName ) throws IOException
        {
            br = new BufferedReader( new FileReader( fileName ) );
            nextLine = br.readLine();
        }


        @Override public boolean hasNext()
        {
            return nextLine != null;
        }


        @Override public String next()
        {
            String lineToReturn = nextLine;
            try {
                nextLine = br.readLine();
            } catch ( IOException e ) {
                nextLine = null;
            }
            return lineToReturn;
        }


        @Override public void remove()
        {
            throw new NotImplementedException();
        }


        @Override public void close() throws IOException
        {
            br.close();
        }
    }


    private static class Transformers
    {
        public int transform1( String input )
        {
            return 1;
        }


        public int transform2( AtomicInteger count, int increment )
        {
            return count.addAndGet( increment );
        }
    }


    public static void main( String[] args ) throws Exception
    {
        AtomicInteger dataSink = new AtomicInteger( 0 );
        Transformers tr = new Transformers();

        try ( FileConnector fc = new FileConnector( args[0] ) ) {
            while ( fc.hasNext() ) {
                int resultOfTransform1 = tr.transform1( fc.next() );
                tr.transform2( dataSink, resultOfTransform1 );
            }
        }
        System.out.println( "Lines found: " + dataSink.get() );
    }
}