Develop Reference

Java The process cannot access the file because it is being used by another process

I want to read out a file on a seperate thread and after that I want to move the file to a new directory but the compiler keeps telling me that I can't move the file because it is used by another process. I have checked it multiple times and my readers are closed and I used the join() function to wait until the readThread has finished what could this be?
public class CallLogReader extends Thread {
private Path path;
private LinkedList<CallLog> callLogs;
public CallLogReader(Path path){
setPath(path);
callLogs = new LinkedList<>();
}
public Path getPath() {
return path;
}
public void setPath(Path path) {
this.path = path;
}
public LinkedList<CallLog> getCallLogs() {
return callLogs;
}
#Override
public void run(){
FileReader reader = null;
BufferedReader buffReader = null;
try{
reader = new FileReader(path.toFile());
buffReader = new BufferedReader(reader);
String currentLine = buffReader.readLine();
while(currentLine != null){
String[] dataBlocks = currentLine.split(";");
if(!dataBlocks[7].equals("IGNORE")){
callLogs.add(new CallLog(Integer.parseInt(dataBlocks[0]) ,dataBlocks[1], ConvertStringToDate(dataBlocks[2], dataBlocks[3]), dataBlocks[4], dataBlocks[5], Integer.parseInt(dataBlocks[6]), dataBlocks[7]));
}
currentLine = buffReader.readLine();
}
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
finally{
try{
if(buffReader != null){
buffReader.close();
}
if(reader != null){
reader.close();
}
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
}
}
private LocalDateTime ConvertStringToDate(String dateString,String timeString){
String dateTimeString = dateString + " " + timeString;
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss");
return LocalDateTime.parse(dateTimeString,formatter);
}
public void moveFile(){
Path newPath = Paths.get(path.getParent().getParent().toString() + "\\processed\\" + path.getFileName());
try{
Files.move(path,newPath,StandardCopyOption.REPLACE_EXISTING);
}
catch(IOException ex){
System.out.println(ex.getMessage());
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Path path_1 = Paths.get("C:\\Users\\11601037\\Desktop\\resources\\in\\testdata1.csv");
CallLogReader reader_1 = new CallLogReader(path_1);
reader_1.run();
try{
reader_1.join();
}
catch(InterruptedException ex){
System.out.println(ex.getMessage());;
}
reader_1.moveFile();
System.out.println(path_1.getParent().getParent().toString());
}
}

String[] cannot be converted to State[]

Just wondering what I have done wrong here I'm getting an error in the method setLine() which is:
error: incompatible types: String[] cannot be converted to State[]
Im not too sure on what to do to fix it since I need the line to be split and stored in that state array so I can determine whether if it is a state or location when reading from a csv file.
public static void readFile(String inFilename)
{
FileInputStream fileStrm = null;
InputStreamReader rdr;
BufferedReader bufRdr;
int stateCount = 0, locationCount = 0;
String line;
try
{
fileStrm = new FileInputStream(inFilename);
rdr = new InputStreamReader(fileStrm);
bufRdr = new BufferedReader(rdr);
line = bufRdr.readLine();
while (line != null)
{
if (line.startsWith("STATE"))
{
stateCount++;
}
else if (line.startsWith("LOCATION"))
{
locationCount++;
}
line = bufRdr.readLine();
}
fileStrm.close();
State[] state = new State[stateCount];
Location[] location = new Location[locationCount];
}
catch (IOException e)
{
if (fileStrm != null)
{
try { fileStrm.close(); } catch (IOException ex2) { }
}
System.out.println("Error in file processing: " + e.getMessage());
}
}
public static void processLine(String csvRow)
{
String thisToken = null;
StringTokenizer strTok;
strTok = new StringTokenizer(csvRow, ":");
while (strTok.hasMoreTokens())
{
thisToken = strTok.nextToken();
System.out.print(thisToken + " ");
}
System.out.println("");
}
public static void setLine(State[] state, Location[] location, int stateCount, int locationCount, String line)
{
int i;
state = new State[stateCount];
state = line.split("="); <--- ERROR
for( i = 0; i < stateCount; i++)
{
}
}
public static void writeOneRow(String inFilename)
{
FileOutputStream fileStrm = null;
PrintWriter pw;
try
{
fileStrm = new FileOutputStream(inFilename);
pw = new PrintWriter(fileStrm);
pw.println();
pw.close();
}
catch (IOException e)
{
if (fileStrm != null)
{
try
{
fileStrm.close();
}
catch (IOException ex2)
{}
}
System.out.println("Error in writing to file: " + e.getMessage());
}
}

This error occurs, as it just says 'String[] cannot be converted to State[]'. That is like you wanted to store an Integer into a String, it's the same, because the types don't have a relation to each other (parent -> child).
So if you want to solve your problem you need a method which converts the String[] into a State[]. Something like this:
private State[] toStateArray(String[] strings){
final State[] states = new State[strings.length];
for(int i = strings.length-1; i >= 0; i--){
states[i] = new State(strings[i]); // here you have to decide how to convert String to State
}
return states;
}

JAVA Replacing line or strings in textfile not working

So i have made two methods that creates the file (createFile(); and one to fill the textfile with empty highscores if none are set.
public class HighscoreList {
static String highscore = null;
static PuzzleModel theModel;
static File file = null;
public static int nom;
public static int tu;
public static int nor;
public static String search = " ";
static String replace = "2";
static String numberOfRows = null;
static String timeUsed = " ";
static String numberOfMoves = " ";
public static void main(String[] args) {
createFile();
isEmptySetEmptyHighscore();
// checkScore(0);
getHighscore(0);
}
public static void createFile() {
file = new File("C:\\Users\\Thomas\\Eclipse Workspace\\15Puzzle\\15Puzzle\\src\\FifteenPuzzle\\ScoreBoard.txt");
System.out.println("Created file " + file.getName());
if (!file.exists()) {
System.out.println("File didn't exist creating new file");
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void isEmptySetEmptyHighscore() {
try {
BufferedReader br = new BufferedReader(new FileReader(
"C:\\Users\\Thomas\\Eclipse Workspace\\15Puzzle\\15Puzzle\\src\\FifteenPuzzle\\ScoreBoard.txt"));
if (br.readLine() == null) {
setEmptyHighscoreFile();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void setEmptyHighscoreFile() {
try {
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
System.out.println("File is empty, fills with empty fields");
for (int i = 3; i < 101; i++) {
bw.write(i + ":" + numberOfMoves + ":" + timeUsed+"\n");
}
bw.close();
System.out.println("Done");
} catch (IOException e) {
e.printStackTrace();
}
}
I have a getHighscore() that reads the two empty " " fields with moves and timeUsed. It is currently able to read this, but i cant write to those empty spaces in the textfile and replace them with actual numbers that i want.
EDIT: With the replace command it just adds it to the bottom of the file.
Is there something wrong with my code that re erases the text that i try to replace or how do i do it?
I tried something like this:
public static void writeToFile(int rows) {
try {
FileWriter fw = new FileWriter(file.getAbsoluteFile(),true);
BufferedWriter bw = new BufferedWriter(fw);
BufferedReader br = new BufferedReader(new FileReader(
"C:\\Users\\Thomas\\Eclipse Workspace\\15Puzzle\\15Puzzle\\src\\FifteenPuzzle\\ScoreBoard.txt"));
if(br.readLine().split(":")[0].equals(Integer.toString(rows+1))){
bw.write(br.readLine().replaceFirst(rows+2+": : ", "yes"));
System.out.println(" lel");
}
bw.close();
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}

have you try this ?
String line = br.readLine();
if(line.split(":")[0].equals(Integer.toString(rows+1))){
bw.write(line.replaceFirst(rows+2+": : ", "yes"));
System.out.println(" lel");
}

Mapping name from .txt to a folder in java

I have a folder called attachment which contains 5 .gif images and i have a att.txt which contains name for this .gif images, Now i need to rename these images with the name present in att.txt.
Below is the code i tried.Please help
public static void main(String[] args) throws java.lang.Exception {
java.io.BufferedReader br = new java.io.BufferedReader(new FileReader("D:\\template_export\\template\\attachments"));
String sCurrentLine="";
while ((sCurrentLine = br.readLine()) != null) {
sCurrentLine= sCurrentLine.replaceAll("txt", "gif");
String[] s = sCurrentLine.split(",");
for(int i=0;i<s.length;i++){
new File("D:\\template_export\\template\\attachment_new"+s[i]).mkdirs();
System.out.println("Folder Created");
}
}
}

Try this:
public class Tst {
public static void main(String[] args) {
File orgDirectory = new File("attachements");// replace this filename
// with the path to the folder
// that contains the original images
String fileContent = "";
try (BufferedReader br = new BufferedReader(new FileReader(new File(orgDirectory, "attachements.txt")))) {
for (String line; (line = br.readLine()) != null;) {
fileContent += line;
}
} catch (Exception e) {
e.printStackTrace();
}
String[] newLocations = fileContent.split(" ");
File[] orgFiles = orgDirectory.listFiles(new FileFilter() {
#Override
public boolean accept(File pathname) {
return pathname.getPath().endsWith(".gif");
}
});
File destinationFolder = new File("processed");
int max = Math.min(orgFiles.length, newLocations.length);
for (int i = 0; i < max; i++) {
String newLocation = newLocations[i];
int lastIndex = newLocation.lastIndexOf("/");
if (lastIndex == -1) {
continue;
}
String newDirName = newLocation.substring(0, lastIndex);
String newName = newLocation.substring(lastIndex);
File newDir = new File(destinationFolder, newDirName);
if (!newDir.exists()) {
newDir.mkdir();
}
try {
Files.move(orgFiles[i].toPath(), new File(newDir, newName).toPath(), StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
It probably won't work since your description isn't that clear but I hope you get the idea and you understand how this task can be done. The important parts are:
File[] orgFiles = orgDirectory.listFiles(new FileFilter() {
#Override
public boolean accept(File pathname) {
return pathname.getPath().endsWith(".gif");
}
});
Which creates a File array which contains all the "gif" files in the source directory.
And:
Files.move(orgFiles[i].toPath(), new File(newDir, newName).toPath(), StandardCopyOption.REPLACE_EXISTING);
Which mover the original image to the new directory and sets its name to the one retrieved from the "attachements.txt" file.

read and write text and changing at only one column

my text
is like that
SEHiR;iL;iLCE;Tip;22356
S SI n;ISTA;ANK;A:S;22356
K K n;IS:TA;BB;B:S;22356
A A b;IS.TA;CC;DK;22356
G S b;ISTA;DD;O:P;22356
I want to change TIP column. I want to put "." instead of ":" for only Tıp column which include A:S,B:S etc.. And I want to write line before changing and after changing to csv. How can I do that? I write something but it has problem at
if(eD.tip.contains(":")) part because it dont continue to hS.Add(eD)
endeks.put("", hS); ı don’t want use “” string.
I do not have to use HasMap I could not write output what I want..
ı expected this output
S SI n;ISTA;ANK;A:S;22356
S SI n;ISTA;ANK;A.S;22356
K K n;IS:TA;BB;B:S;22356
K K n;IS:TA;BB;B.S;22356
G S b;ISTA;DD;O:P;22356
G S b;ISTA;DD;O.P;22356
public class MaliyeVknmDegil {
static class EndeksDegeri {
String sirket ;
String sehir;
String ilce;
String tip;
int numara;
}
static HashMap<String,HashSet<EndeksDegeri>> endeks = new HashMap<String, HashSet<EndeksDegeri>>();
static PrintWriter pW;
static EndeksDegeri eD = new EndeksDegeri();
static String satır;
private static PrintWriter pW2;
public static void main(String[] args) {
FileInputStream fIS;
FileOutputStream fOS;
try {
fIS = new FileInputStream("C:\\deneme\\DENEME.csv");
Reader r = new InputStreamReader(fIS, "UTF-8");
BufferedReader bR = new BufferedReader(r);
fOS = new FileOutputStream("c:\\yazdirilan\\deneme.csv");
Writer w = new OutputStreamWriter(fOS, "UTF-8");
pW2 = (new PrintWriter(w));
String satır;
String[] eleman;
while ((satır = bR.readLine()) != null) {
eleman = satır.split(";");
if(satır.contains(":")){
pW2.write(satır);
}
HashSet<EndeksDegeri> hS = new HashSet<EndeksDegeri>();
for (int i = 0; i < eleman.length; i++) {
// alteleman=eleman[i].split(" ");
EndeksDegeri eD = new EndeksDegeri();
eD.sirket = eleman[0];
eD.sehir = eleman[1];
eD.ilce = eleman[2];
if(eD.tip.contains(":")){
eD.tip.replaceAll(":", ".");
eD.tip = eleman[3];
}
eD.numara = Integer.parseInt(eleman[4]);
hS.add(eD);
}
endeks.put("", hS);
}
bR.close();
// yazdir
HashSet<EndeksDegeri> hS;
for (String s : endeks.keySet()) {
hS = endeks.get(s);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
}// main end
}// clas end

package stackoverflow;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Writer;
public class TipChange {
private static String inputPath = "input.csv";
private static String outputPath = "output.csv";
private static BufferedReader bufferedReader;
private static PrintWriter printWriter;
public static void main(String[] args) {
try {
FileInputStream inputStream = new FileInputStream(inputPath);
Reader reader = new InputStreamReader(inputStream, "UTF-8");
bufferedReader = new BufferedReader(reader);
FileOutputStream outputStream = new FileOutputStream(outputPath);
Writer writer = new OutputStreamWriter(outputStream, "UTF-8");
printWriter = new PrintWriter(writer);
String line;
while ((line = bufferedReader.readLine()) != null) {
EndeksDegeri eD = lineToClass(line);
if (shouldOutput(eD)) {
printWriter.append(classToLine(eD, true));
printWriter.append(classToLine(eD, false));
}
}
} catch (IOException e) {
e.printStackTrace();
}
finally {
try {
bufferedReader.close();
printWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private static boolean shouldOutput(EndeksDegeri eD) {
if (!eD.tip.contains(":")) {
return false;
}
return true;
}
private static String classToLine(EndeksDegeri eD, boolean original) {
if (!original) {
eD.tip = eD.tip.replace(":", ".");
}
return eD.sirket.concat(";")
.concat(eD.sehir).concat(";")
.concat(eD.ilce).concat(";")
.concat(eD.tip).concat(";")
.concat(String.valueOf(eD.numara)
.concat("\r\n"));
}
private static EndeksDegeri lineToClass(String line) {
String[] element = line.split(";");
EndeksDegeri endeksDegeri = new EndeksDegeri();
endeksDegeri.sirket = element[0];
endeksDegeri.sehir = element[1];
endeksDegeri.ilce = element[2];
endeksDegeri.tip = element[3];
endeksDegeri.numara = Integer.valueOf(element[4]);
return endeksDegeri;
}
private static class EndeksDegeri {
String sirket ;
String sehir;
String ilce;
String tip;
int numara;
}
}
Sample input:
SSI;ISTA;ANK;A:S;22356
KK;IS:TA;BB;B:S;22356
AA;IS.TA;CC;DK;22356
GS;ISTA;DD;O:P;22356
Generated Output:
SSI;ISTA;ANK;A:S;22356
SSI;ISTA;ANK;A.S;22356
KK;IS:TA;BB;B:S;22356
KK;IS:TA;BB;B.S;22356
GS;ISTA;DD;O:P;22356
GS;ISTA;DD;O.P;22356

Your code will produce a NullPointerException in the line: if(eD.tip.contains(":")){
That is because when a new EndeksDegeri instance is created all its fields are null you cannot call contains() on a null string.
Check the example code below (It writes to the console but it should get you going)
static class EndeksDegeri {
String sirket;
String sehir;
String ilce;
String tip;
int numara;
// I have added this method for convenience to write to the output
public String toString() {
return sirket + ":" + sehir + ":" + ilce + ":" + tip + ":" + numara;
}
}
while ((satir = bR.readLine()) != null) {
eleman = satir.split(";");
boolean found = false;
EndeksDegeri eD = new EndeksDegeri();
// first set all fields to not get exception
eD.sirket = eleman[0];
eD.sehir = eleman[1];
eD.ilce = eleman[2];
eD.tip = eleman[3];
eD.numara = Integer.parseInt(eleman[4]);
// check if the line contains ":"
if (eD.tip.contains(":")) {
// If yes, write the original line first
System.out.println(eD.toString());
// Change the record
eD.tip = eD.tip.replaceAll(":", ".");
found = true;
}
if (found) {
// write the corrected line now
System.out.println(eD.toString());
}
}
// Will print only the lines with ":" and its correct version
SSI:ISTA:ANK:A:S:22356
SSI:ISTA:ANK:A.S:22356
KK:IS:TA:BB:B:S:22356
KK:IS:TA:BB:B.S:22356
GS:ISTA:DD:O:P:22356
GS:ISTA:DD:O.P:22356