File I/O java

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

import java.util.ArrayList;

public class FileIO{

public static int flag = 0;

public static ArrayList arrFilelist = new ArrayList();

public static void saveToFile(ArrayList arrFilelist) throws IOException {

// TODO code application logic here

FileWriter writer = new FileWriter("D:\\BaseController.csv");

writer.append("Number"+","+"PATH"+","+"Inheretence\n");

try {

for (int i = 0; i < arrFilelist.size(); i++) {

writer.append((i+1)+(String)arrFilelist.get(i));

writer.append('\n');

System.out.println("파일쓰기 완료 : " + (i+1));

}

writer.flush();

} catch (IOException e) {

e.printStackTrace();

} finally{

writer.close();

}

}

public static int checkMatching(String location, String filename)

throws IOException {

// Open BufferReader with given filename

// BufferedReader reader = new BufferedReader(new FileReader(location + "" + filename));

BufferedReader reader = new BufferedReader(new FileReader(location + "\\" + filename));

String line = null;

int count = 0;

try {

flag = 0;

// Loop per every line

while ((line = reader.readLine()) != null) {

// Search the string ex)

// line.matches(".*extends BaseController.*")

if (line.matches(".*extends BaseController.*")) {

count++;

System.out.println(count);

flag = 1;

} else {

}

}

} catch (Exception e) {

e.printStackTrace();

} finally {

// Close BufferReader

reader.close();

}

return count;

}

public static void FileList(String location) throws IOException {

File file = new File(location);

System.out.println("Location:>" + location + "<");

// Get list of files

File[] fileList = file.listFiles();

// Filelist is null, it will stop.

if (file.listFiles() == null) {

System.out.println("Stop searching : filelist is null");

return;

}

try {

// Loop file list

System.out.println("\tFilelist Loop starting...");

for (int i = 0; i < fileList.length; i++) {

String filename = fileList[i].getName();

System.out.println("\t\tchecking file : [" + filename + "]");

if (fileList[i].isFile()) {

// Save file list into Array(ArrayList, HashMap, .... List )

System.out.println("\t\tFound a file :  [" + location + "\\"+ filename + "]");

if(filename.matches(".*Controller.*")){

int count = FileIO.checkMatching(location + "\\", filename);

if(count>=0){

arrFilelist.add("," + location + "\\" + filename + "," + count);

System.out.println(arrFilelist);

}

}

} else if (fileList[i].isDirectory()) {

System.out.println("\t\tFound a directory : [" + filename + "]");

if (!filename.equals(".svn")) {

FileList(location + "\\" + filename);

}

}

}

} catch (Exception e) {

e.printStackTrace();

} finally {

// Close File I/O

}

FileIO.saveToFile(arrFilelist);

//System.out.println("File override");

}

public static void main(String[] args) throws IOException {

// Open File I/O

String location = "C:\\BitOss\\Workspace\\OSS_PNA_WFM\\src\\main\\java\\com\\kt\\oss";

// Get list of file in certain(given) directory, Get filename

FileIO.FileList(location);

ExceptionChecking chk = new ExceptionChecking();

if (flag == 1) {

System.out.println("BaseController를 포함하는 파일입니다.\n");

}

}

}