How to use

stat

method

in

libcore.io.Os

/**
 * Returns the time when this file was last modified, measured in
 * milliseconds since January 1st, 1970, midnight.
 * Returns 0 if the file does not exist.
 *
 * @return the time when this file was last modified.
 */
public long lastModified() {
  try {
    return Libcore.os.stat(path).st_mtime * 1000L;
  } catch (ErrnoException errnoException) {
    // The RI returns 0 on error. (Even for errors like EACCES or ELOOP.)
    return 0;
  }
}

/**
 * Returns the length of this file in bytes.
 * Returns 0 if the file does not exist.
 * The result for a directory is not defined.
 *
 * @return the number of bytes in this file.
 */
public long length() {
  try {
    return Libcore.os.stat(path).st_size;
  } catch (ErrnoException errnoException) {
    // The RI returns 0 on error. (Even for errors like EACCES or ELOOP.)
    return 0;
  }
}

public StructStat stat(String path) throws ErrnoException { return os.stat(path); }
public StructStatVfs statvfs(String path) throws ErrnoException { return os.statvfs(path); }

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

/**
 * Indicates if this file represents a <em>file</em> on the underlying
 * file system.
 *
 * @return {@code true} if this file is a file, {@code false} otherwise.
 */
public boolean isFile() {
  try {
    return S_ISREG(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}

/**
 * Indicates if this file represents a <em>directory</em> on the
 * underlying file system.
 *
 * @return {@code true} if this file is a directory, {@code false}
 *         otherwise.
 */
public boolean isDirectory() {
  try {
    return S_ISDIR(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}

/**
 * Returns the time when this file was last modified, measured in
 * milliseconds since January 1st, 1970, midnight.
 * Returns 0 if the file does not exist.
 *
 * @return the time when this file was last modified.
 */
public long lastModified() {
  try {
    return Libcore.os.stat(path).st_mtime * 1000L;
  } catch (ErrnoException errnoException) {
    // The RI returns 0 on error. (Even for errors like EACCES or ELOOP.)
    return 0;
  }
}

public StructStat stat(String path) throws ErrnoException { return os.stat(path); }
public StructStatVfs statvfs(String path) throws ErrnoException { return os.statvfs(path); }

/**
 * Returns the length of this file in bytes.
 * Returns 0 if the file does not exist.
 * The result for a directory is not defined.
 *
 * @return the number of bytes in this file.
 */
public long length() {
  try {
    return Libcore.os.stat(path).st_size;
  } catch (ErrnoException errnoException) {
    // The RI returns 0 on error. (Even for errors like EACCES or ELOOP.)
    return 0;
  }
}

public StructStat stat(String path) throws ErrnoException { return os.stat(path); }
public StructStatVfs statvfs(String path) throws ErrnoException { return os.statvfs(path); }

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

private boolean doChmod(int mask, boolean set) {
  try {
    StructStat sb = Libcore.os.stat(path);
    int newMode = set ? (sb.st_mode | mask) : (sb.st_mode & ~mask);
    Libcore.os.chmod(path, newMode);
    return true;
  } catch (ErrnoException errnoException) {
    return false;
  }
}

/**
 * Indicates if this file represents a <em>file</em> on the underlying
 * file system.
 *
 * @return {@code true} if this file is a file, {@code false} otherwise.
 */
public boolean isFile() {
  try {
    return S_ISREG(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}

/**
 * Indicates if this file represents a <em>file</em> on the underlying
 * file system.
 *
 * @return {@code true} if this file is a file, {@code false} otherwise.
 */
public boolean isFile() {
  try {
    return S_ISREG(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}

/**
 * Indicates if this file represents a <em>directory</em> on the
 * underlying file system.
 *
 * @return {@code true} if this file is a directory, {@code false}
 *         otherwise.
 */
public boolean isDirectory() {
  try {
    return S_ISDIR(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}

/**
 * Indicates if this file represents a <em>file</em> on the underlying
 * file system.
 *
 * @return {@code true} if this file is a file, {@code false} otherwise.
 */
public boolean isFile() {
  try {
    return S_ISREG(Libcore.os.stat(path).st_mode);
  } catch (ErrnoException errnoException) {
    // The RI returns false on error. (Even for errors like EACCES or ELOOP.)
    return false;
  }
}