InputHandler.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.LineNumberReader;
import java.util.ArrayList;


public class InputHandler
{
	public String object;
	static File in;

	//create streams
	public InputHandler(){
		InputHandler.in = new File("input.txt");
	}

	private static int lineCounter() throws IOException{
		LineNumberReader  lnr = new LineNumberReader(new FileReader(in));
		lnr.skip(Long.MAX_VALUE);
		int lineCount = lnr.getLineNumber();
		lnr.close();
		return lineCount+1;
	}

	//grabs object and query for program run loads into arrays for each and checks to ensure that there are an equal number
	public ArrayList<String>[] getObjectsandQueries() throws IOException{
		int lineCount = lineCounter();
		System.out.println(lineCount);
		if((lineCount % 2) == 0){
			@SuppressWarnings("unchecked")
			ArrayList<String>[] out = new  ArrayList[2];
			out[0] = new ArrayList<String>();
			out[1] = new ArrayList<String>();
			BufferedReader reader = new BufferedReader(new FileReader(in));
			String line = "";
			boolean flag = true;
			while((line=reader.readLine()) != null){
				if(flag){
					out[0].add(line);
					flag = false;
				}
				else{
					out[1].add(checkQuery(line));
					flag = true;
				}
			}
			reader.close();
			return out;
		}
		else
			throw new IllegalArgumentException("Malformed input.txt");

	}

	public static String checkQuery(String query){
		query = query.trim();
		if(query.contains("Id"))
			return query;
		else{
			String select = query.substring(0,6);
			select += " Id, ";
			select += query.substring(6);
			return select;
		}
	}

}