Example usage for java.nio.file FileSystems getDefault

Introduction

In this page you can find the example usage for java.nio.file FileSystems getDefault.

Prototype

public static FileSystem getDefault()

Source Link

Document

Returns the default FileSystem .

Usage

From source file:Main.java

public static void main(String[] args) {

    Path newdir_1 = FileSystems.getDefault().getPath("C:/tutorial/Java/2010/");

    try {/*from   w w  w.ja v  a  2  s  . c  om*/
        Files.createDirectory(newdir_1);
    } catch (IOException e) {
        System.err.println(e);
    }
}

From source file:Test.java

public static void main(String[] args) throws Exception {
    FileSystem fileSystem = FileSystems.getDefault();
    Path directory = fileSystem.getPath("./newDirectoryWPermissions");
    Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x---");
    FileAttribute<Set<PosixFilePermission>> attr = PosixFilePermissions.asFileAttribute(perms);
    Files.createDirectory(directory, attr);
}

From source file:Main.java

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

    FileSystem fileSystem = FileSystems.getDefault();
    WatchService watchService = fileSystem.newWatchService();
    Path directory = Paths.get("c:/");
    WatchEvent.Kind<?>[] events = { StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE,
            StandardWatchEventKinds.ENTRY_MODIFY };
    directory.register(watchService, events);
    while (true) {
        System.out.println("Waiting for a watch event");
        WatchKey watchKey = watchService.take();

        System.out.println("Path being watched: " + watchKey.watchable());
        System.out.println();/*from  w  ww. jav  a  2s .c  o m*/

        if (watchKey.isValid()) {
            for (WatchEvent<?> event : watchKey.pollEvents()) {
                System.out.println("Kind: " + event.kind());
                System.out.println("Context: " + event.context());
                System.out.println("Count: " + event.count());
                System.out.println();
            }

            boolean valid = watchKey.reset();
            if (!valid) {
                // The watchKey is not longer registered
            }
        }
    }

}

From source file:Main.java

public static void main(String[] args) {
    try (WatchService ws = FileSystems.getDefault().newWatchService()) {
        Path dirToWatch = Paths.get("C:\\myName");
        dirToWatch.register(ws, StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_MODIFY,
                StandardWatchEventKinds.ENTRY_DELETE);
        while (true) {
            WatchKey key = ws.take();
            for (WatchEvent<?> event : key.pollEvents()) {
                Kind<?> eventKind = event.kind();
                if (eventKind == StandardWatchEventKinds.OVERFLOW) {
                    System.out.println("Event  overflow occurred");
                    continue;
                }//from w w  w  . jav  a 2s .  c om
                WatchEvent<Path> currEvent = (WatchEvent<Path>) event;
                Path dirEntry = currEvent.context();
                System.out.println(eventKind + "  occurred on  " + dirEntry);
            }
            boolean isKeyValid = key.reset();
            if (!isKeyValid) {
                System.out.println("No  longer  watching " + dirToWatch);
                break;
            }
        }
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
    }
}

From source file:Test.java

public static void main(String[] args) throws Exception {
    FileSystem fileSystem = FileSystems.getDefault();
    WatchService watchService = fileSystem.newWatchService();
    Path directory = Paths.get("/home/docs");
    WatchEvent.Kind<?>[] events = { StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE,
            StandardWatchEventKinds.ENTRY_MODIFY };
    directory.register(watchService, events);
    while (true) {
        System.out.println("Waiting for a watch event");
        WatchKey watchKey = watchService.take();
        System.out.println("Path being watched: " + watchKey.watchable());
        if (watchKey.isValid() == false) {
            return;
        }//  w  w  w .j a  v  a  2s .c  o m
        for (WatchEvent<?> event : watchKey.pollEvents()) {
            System.out.println("Kind: " + event.kind());
            System.out.println("Context: " + event.context());
            System.out.println("Count: " + event.count());
            System.out.println();
        }
        boolean valid = watchKey.reset();
        System.out.println(valid);

    }
}

From source file:Main.java

public static void main(String[] args) {

    Path newfile_2 = FileSystems.getDefault().getPath("/home/tutorial/Java/2010/demo.txt");

    //create a file with a set of specified attributes
    Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rw-------");
    FileAttribute<Set<PosixFilePermission>> attr = PosixFilePermissions.asFileAttribute(perms);
    try {//from  www .  ja  v a 2  s. c o m
        Files.createFile(newfile_2, attr);
    } catch (IOException e) {
        System.err.println(e);
    }

}

From source file:Test.java

public static void main(String[] args) {
    Path directory = Paths.get("C:/Program Files/Java/jdk1.7.0/bin");
    PathMatcher pathMatcher = FileSystems.getDefault().getPathMatcher("glob:java?.exe");
    try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(directory, "java*.exe")) {
        for (Path file : directoryStream) {
            if (pathMatcher.matches(file.getFileName())) {
                System.out.println(file.getFileName());
            }/*  w ww. j  a va  2  s  . co  m*/
        }
    } catch (IOException | DirectoryIteratorException ex) {
        ex.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileSystem fileSystem = FileSystems.getDefault();
    WatchService watchService = fileSystem.newWatchService();
    Path directory = Paths.get("c:/");
    WatchEvent.Kind<?>[] events = { StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE,
            StandardWatchEventKinds.ENTRY_MODIFY };
    directory.register(watchService, events);
    while (true) {
        System.out.println("Waiting for a watch event");
        WatchKey watchKey = watchService.take();

        System.out.println("Path being watched: " + watchKey.watchable());
        System.out.println();/*from  w  w  w.ja va2  s .  c  o  m*/

        if (watchKey.isValid()) {
            for (WatchEvent<?> event : watchKey.pollEvents()) {
                System.out.println("Kind: " + event.kind());
                System.out.println("Context: " + event.context());
                System.out.println("Count: " + event.count());
                System.out.println();
            }

            boolean valid = watchKey.reset();
            if (!valid) {
                // The watchKey is not longer registered
            }
        }
    }

}

From source file:Test.java

public static void main(String[] args) throws Exception {
    Path path = Paths.get("C:/home/docs/users.txt");
    FileOwnerAttributeView view = Files.getFileAttributeView(path, FileOwnerAttributeView.class);
    UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService();
    UserPrincipal userPrincipal = lookupService.lookupPrincipalByName("mary");

    view.setOwner(userPrincipal);//w  w  w  .j a va  2  s.  co  m
    System.out.println("Owner: " + view.getOwner().getName());
}

From source file:Test.java

public static void main(String[] args) throws Exception {
    Path path = Paths.get("C:/home/docs/users.txt");
    FileOwnerAttributeView view = Files.getFileAttributeView(path, FileOwnerAttributeView.class);
    UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService();
    UserPrincipal userPrincipal = lookupService.lookupPrincipalByName("mary");

    Files.setOwner(path, userPrincipal);
    System.out.println("Owner: " + view.getOwner().getName());

}