package com.menzus.gcj._2012.qualification.c;

import com.menzus.gcj.common.InputBlockParser;
import com.menzus.gcj.common.OutputProducer;
import com.menzus.gcj.common.impl.AbstractProcessorFactory;

public class CProcessorFactory extends AbstractProcessorFactory<CInput, COutputEntry> {
    public CProcessorFactory(String inputFileName) {
	super(inputFileName);
    }

    @Override
    protected InputBlockParser<CInput> createInputBlockParser() {
	return new CInputBlockParser();
    }

    @Override
    protected OutputProducer<CInput, COutputEntry> createOutputProducer() {
	return new COutputProducer();
    }
}

package codezam.util;

import java.io.File;
import java.io.FileReader;
import java.io.LineNumberReader;

public class InputFile {

	private File file;
	FileReader freader;
	LineNumberReader lnreader;
	
	public void setFile(String filename) {
		
		try {
			file = new File(filename);
			freader = new FileReader(file);
			lnreader = new LineNumberReader(freader);
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public String readLine() {
		String line = null;
		
		try {
			line = lnreader.readLine();
			//System.out.println("Line:  " + lnreader.getLineNumber() + ": " + line);

			if (line==null) {
				close();
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return line;
	}

	private void close() {
		try {
			freader.close();
			lnreader.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
}
