FileUtils.java

package heufybot.utils;

import heufybot.core.Logger;

import java.io.*;
import java.nio.charset.Charset;

public class FileUtils
{
    public static String readFile(String filePath)
    {
        try
        {
            FileInputStream fstream = new FileInputStream(filePath);
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String result = "";
            String read = "";
            while ((read = br.readLine()) != null)
            {
                result += read += "\n";
            }
            in.close();
            return result;
        }
        catch (FileNotFoundException e)
        {
            Logger.error("FileUtils", "The file " + filePath + " does not exist.");
            return null;
        }
        catch (IOException e)
        {
            Logger.error("FileUtils", "The file " + filePath + " could not be read.");
            return null;
        }
    }

    public static boolean writeFile(String filePath, String text)
    {
        File file = new File(filePath);
        if (file.exists())
        {
            file.delete();
        }
        try
        {
            FileOutputStream fos = new FileOutputStream(filePath, false);
            OutputStreamWriter writer = new OutputStreamWriter(fos, Charset.forName("UTF-8"));
            BufferedWriter bw = new BufferedWriter(writer);
            bw.write(text);
            bw.flush();
            bw.close();
            return true;
        }
        catch (IOException e)
        {
            Logger.error("FileUtils", "The file " + filePath + " could not be written.");
            return false;
        }
    }

    public static boolean writeFileAppend(String filePath, String text)
    {
        try
        {
            FileOutputStream fos = new FileOutputStream(filePath, true);
            OutputStreamWriter writer = new OutputStreamWriter(fos, Charset.forName("UTF-8"));
            BufferedWriter bw = new BufferedWriter(writer);
            bw.write(text);
            bw.flush();
            bw.close();
            return true;
        }
        catch (IOException e)
        {
            Logger.error("FileUtils", "The file " + filePath + " could not be written.");
            return false;
        }
    }

    public static boolean touchFile(String filePath)
    {
        File file = new File(filePath);
        try
        {
            return file.createNewFile();
        }
        catch (IOException e)
        {
            Logger.error("FileUtils", "The file " + filePath + " could not be written.");
            return false;
        }
    }

    public static void touchDir(String filePath)
    {
        File file = new File(filePath);
        if (!file.exists())
        {
            file.mkdirs();
        }
    }

    public static boolean deleteFile(String filePath)
    {
        File file = new File(filePath);
        return file.delete();
    }

    public static boolean fileExists(String filePath)
    {
        File file = new File(filePath);
        return file.exists();
    }
}