Java Utililty Methods Path File Check nio

List of utility methods to do Path File Check nio

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Description

The list of methods to do Path File Check nio are organized into topic(s).

Method

booleanisFile(final String path)
Determines whether the given path refers to a valid file 
return path != null && Files.isRegularFile(Paths.get(path));
booleanisFile(Path file)
We are using java.io because sonar has suggested as a performance update https://sonarqube.com/coding_rules#rule_key=squid%3AS3725 
return file != null && file.toFile().isFile();
booleanisFileHidden(Path file)
is File Hidden 
List<String> illegal = new ArrayList<String>();
illegal.add("$");
illegal.add(".");
illegal.add("~");
return illegal.stream().anyMatch(pattern -> file.getFileName().toString().startsWith(pattern));
booleanisFileSymLink(File path)
returns true if the path specified is actually a symbolic link. 
Path nioPath = path.toPath();
return Files.isSymbolicLink(nioPath);
booleanisFileWritable(final Path file)
Checks if an output file can be written. 
if (file == null) {
    return false;
if (isDirectory(file)) {
    return false;
final Path parentPath = file.getParent();
if (parentPath == null || !exists(parentPath) || !isDirectory(parentPath) || !isWritable(parentPath)) {
...
booleanisFolder(Path path)
Tests whether a file is a directory. 
return Files.isDirectory(path);
booleanisHidden(final Path path)
Due to the way that windows handles hidden files vs. 
if (System.getProperty("os.name").contains("Windows")) {
    return Files.readAttributes(path, DosFileAttributes.class).isHidden();
return Files.isHidden(path);
booleanisHidden(Path path)
is Hidden 
try {
    return Files.exists(path) && (Files.isHidden(path) || path.getFileName().toString().startsWith("."));
} catch (Exception e) {
return false;
booleanisHidden(Path path)
Check whether the file denoted by the given path is hidden. 
Path fileName = path.getFileName();
if (fileName == null) {
    return false;
return fileName.toString().startsWith(".");
booleanisHidden(Path value)
is Hidden 
return Files.isHidden(value);