/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejam.common;

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author Lance Chen
 */
public class CodeHelper {

    private static String FILE_ROOT = "D:/workspace/googlecodejam/meta";

    public static List<List<String>> loadInputsExcludes(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        int index = 0;
        for (String line : lines) {
            if (index == 0) {
                index++;
                continue;
            }
            if (index % 2 == 1) {
                index++;
                continue;
            }
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
            index++;
        }
        return result;
    }

    public static List<List<String>> loadInputs(String fileName) {
        List<List<String>> result = new ArrayList<List<String>>();
        List<String> lines = FileUtil.readLines(FILE_ROOT + fileName);
        for (String line : lines) {
            List<String> dataList = new ArrayList<String>();
            String[] dataArray = line.split("\\s+");
            for (String data : dataArray) {
                if (data.trim().length() > 0) {
                    dataList.add(data);
                }
            }
            result.add(dataList);
        }
        return result;
    }

    public static List<String> loadInputLines(String fileName) {
        return FileUtil.readLines(FILE_ROOT + fileName);
    }

    public static void writeOutputs(String fileName, List<String> lines) {
        FileUtil.writeLines(FILE_ROOT + fileName, lines);
    }
}

package hk.polyu.cslhu.codejam.lib;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

public class FileStream {
	public static Logger logger = Logger.getLogger(FileStream.class);
	
	/**
	 * Read the content of file with the given file path
	 * 
	 * @param filePath String The location of file
	 * @return The content of file as an instance of list
	 */
	public static List<String> read(String filePath) {
		List<String> content = new ArrayList<String>();
		
		try {
			BufferedReader br = new BufferedReader(new FileReader(filePath));
			String line;
			
			while ((line = br.readLine()) != null) {
				content.add(line);
			}
			
			br.close();
			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			logger.error("File is not found with the path \"" + filePath + "\"");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			logger.error(e.getMessage());
		}
		
		return content;
	}
	
	/**
	 * Save the content to a file
	 * 
	 * @param filePath String The location of file to be saved
	 * @param content String The content to be saved
	 */
	public static void save(String filePath, String content) {
		try {
			BufferedWriter bw = new BufferedWriter(new FileWriter(filePath));
			bw.write(content);
			bw.flush();
			bw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			logger.error(e.getMessage());
		}
	}
}
