How to use

FileUtils$FileLock

in

com.lody.virtual.helper.utils

FileChannel fileChannel = fileLockCount.fChannel;
try {
  if (RefCntDec(lockFile.getAbsolutePath()) <= 0) {
    if (fileLock != null && fileLock.isValid()) {
      fileLock.release();

public boolean LockExclusive(File targetFile) {
  if (targetFile == null) {
    return false;
  }
  try {
    File lockFile = new File(targetFile.getParentFile().getAbsolutePath().concat("/lock"));
    if (!lockFile.exists()) {
      lockFile.createNewFile();
    }
    RandomAccessFile randomAccessFile = new RandomAccessFile(lockFile.getAbsolutePath(), "rw");
    FileChannel channel = randomAccessFile.getChannel();
    java.nio.channels.FileLock lock = channel.lock();
    if (!lock.isValid()) {
      return false;
    }
    RefCntInc(lockFile.getAbsolutePath(), lock, randomAccessFile, channel);
    return true;
  } catch (Exception e) {
    return false;
  }
}

FileChannel fileChannel = fileLockCount.fChannel;
try {
  if (RefCntDec(lockFile.getAbsolutePath()) <= 0) {
    if (fileLock != null && fileLock.isValid()) {
      fileLock.release();

FileChannel fileChannel = fileLockCount.fChannel;
try {
  if (RefCntDec(lockFile.getAbsolutePath()) <= 0) {
    if (fileLock != null && fileLock.isValid()) {
      fileLock.release();

public boolean LockExclusive(File targetFile) {
  if (targetFile == null) {
    return false;
  }
  try {
    File lockFile = new File(targetFile.getParentFile().getAbsolutePath().concat("/lock"));
    if (!lockFile.exists()) {
      lockFile.createNewFile();
    }
    RandomAccessFile randomAccessFile = new RandomAccessFile(lockFile.getAbsolutePath(), "rw");
    FileChannel channel = randomAccessFile.getChannel();
    java.nio.channels.FileLock lock = channel.lock();
    if (!lock.isValid()) {
      return false;
    }
    RefCntInc(lockFile.getAbsolutePath(), lock, randomAccessFile, channel);
    return true;
  } catch (Exception e) {
    return false;
  }
}

public boolean LockExclusive(File targetFile) {
  if (targetFile == null) {
    return false;
  }
  try {
    File lockFile = new File(targetFile.getParentFile().getAbsolutePath().concat("/lock"));
    if (!lockFile.exists()) {
      lockFile.createNewFile();
    }
    RandomAccessFile randomAccessFile = new RandomAccessFile(lockFile.getAbsolutePath(), "rw");
    FileChannel channel = randomAccessFile.getChannel();
    java.nio.channels.FileLock lock = channel.lock();
    if (!lock.isValid()) {
      return false;
    }
    RefCntInc(lockFile.getAbsolutePath(), lock, randomAccessFile, channel);
    return true;
  } catch (Exception e) {
    return false;
  }
}

public static FileLock getInstance() {
  if (singleton == null) {
    singleton = new FileLock();
  }
  return singleton;
}

public static FileLock getInstance() {
  if (singleton == null) {
    singleton = new FileLock();
  }
  return singleton;
}

public static FileLock getInstance() {
  if (singleton == null) {
    singleton = new FileLock();
  }
  return singleton;
}