Example usage for java.nio.file FileSystems getDefault

List of usage examples for java.nio.file FileSystems getDefault

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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: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);
    UserPrincipal userPrincipal = view.getOwner();

    UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService();
    userPrincipal = lookupService.lookupPrincipalByName("users");
    view.setOwner(userPrincipal);//from ww w . ja v a  2s .c om
    System.out.println("UserPrincipal set: " + userPrincipal.getName());

}

From source file:Main.java

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

    Path path = Paths.get("C:\\Java_Dev\\test1.txt");

    FileOwnerAttributeView foav = Files.getFileAttributeView(path, FileOwnerAttributeView.class);

    UserPrincipal owner = foav.getOwner();
    System.out.format("Original owner  of  %s  is %s%n", path, owner.getName());

    FileSystem fs = FileSystems.getDefault();
    UserPrincipalLookupService upls = fs.getUserPrincipalLookupService();

    UserPrincipal newOwner = upls.lookupPrincipalByName("brice");
    foav.setOwner(newOwner);//from w ww .j a v a  2 s  .  c  o m

    UserPrincipal changedOwner = foav.getOwner();
    System.out.format("New owner  of  %s  is %s%n", path, changedOwner.getName());

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Path path = Paths.get("C:\\Java_Dev\\test1.txt");

    AclFileAttributeView aclView = Files.getFileAttributeView(path, AclFileAttributeView.class);
    if (aclView == null) {
        System.out.format("ACL view  is not  supported.%n");
        return;/*from  w  ww . j a  va2s .  c  o m*/
    }
    UserPrincipal bRiceUser = FileSystems.getDefault().getUserPrincipalLookupService()
            .lookupPrincipalByName("brice");

    Set<AclEntryPermission> permissions = EnumSet.of(AclEntryPermission.READ_DATA,
            AclEntryPermission.WRITE_DATA);

    AclEntry.Builder builder = AclEntry.newBuilder();
    builder.setPrincipal(bRiceUser);
    builder.setType(AclEntryType.ALLOW);
    builder.setPermissions(permissions);
    AclEntry newEntry = builder.build();

    List<AclEntry> aclEntries = aclView.getAcl();

    aclEntries.add(newEntry);

    aclView.setAcl(aclEntries);
}

From source file:net.sourceforge.pmd.docs.GenerateRuleDocsCmd.java

public static void main(String[] args) throws RuleSetNotFoundException {
    long start = System.currentTimeMillis();
    Path output = FileSystems.getDefault().getPath(args[0]).resolve("..").toAbsolutePath().normalize();
    System.out.println("Generating docs into " + output);

    RuleSetFactory ruleSetFactory = new RuleSetFactory();
    Iterator<RuleSet> registeredRuleSets = ruleSetFactory.getRegisteredRuleSets();
    List<String> additionalRulesets = findAdditionalRulesets(output);

    RuleDocGenerator generator = new RuleDocGenerator(new DefaultFileWriter(), output);
    generator.generate(registeredRuleSets, additionalRulesets);

    System.out.println("Generated docs in " + (System.currentTimeMillis() - start) + " ms");
}

From source file:csv.sorting.PrepareWeatherData.java

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

    // Path to read the CSV data from:
    final Path csvStationDataFilePath = FileSystems.getDefault()
            .getPath("C:\\Users\\philipp\\Downloads\\csv\\201503station.txt");
    final Path csvLocalWeatherDataUnsortedFilePath = FileSystems.getDefault()
            .getPath("C:\\Users\\philipp\\Downloads\\csv\\201503hourly.txt");
    final Path csvLocalWeatherDataSortedFilePath = FileSystems.getDefault()
            .getPath("C:\\Users\\philipp\\Downloads\\csv\\201503hourly_sorted.txt");

    // A map between the WBAN and Station for faster Lookups:
    final Map<String, Station> stationMap = getStationMap(csvStationDataFilePath);

    // Holds the List of Sorted DateTimes (including ZoneOffset):
    List<Integer> indices = new ArrayList<>();

    // Comparator for sorting the File:
    Comparator<OffsetDateTime> byMeasurementTime = (e1, e2) -> e1.compareTo(e2);

    // Get the sorted indices from the stream of LocalWeatherData Elements:
    try (Stream<CsvMappingResult<csv.model.LocalWeatherData>> stream = getLocalWeatherData(
            csvLocalWeatherDataUnsortedFilePath)) {

        // Holds the current line index, when processing the input Stream:
        AtomicInteger currentIndex = new AtomicInteger(1);

        // We want to get a list of indices, which sorts the CSV file by measurement time:
        indices = stream/* w w w  .  j ava 2s.co m*/
                // Skip the CSV Header:
                .skip(1)
                // Start by enumerating ALL mapping results:
                .map(x -> new ImmutablePair<>(currentIndex.getAndAdd(1), x))
                // Then only take those lines, that are actually valid:
                .filter(x -> x.getRight().isValid())
                // Now take the parsed entity from the CsvMappingResult:
                .map(x -> new ImmutablePair<>(x.getLeft(), x.getRight().getResult()))
                // Take only those measurements, that are also available in the list of stations:
                .filter(x -> stationMap.containsKey(x.getRight().getWban()))
                // Get the OffsetDateTime from the LocalWeatherData, which includes the ZoneOffset of the Station:
                .map(x -> {
                    // Get the matching station:
                    csv.model.Station station = stationMap.get(x.getRight().getWban());
                    // Calculate the OffsetDateTime from the given measurement:
                    OffsetDateTime measurementTime = OffsetDateTime.of(x.getRight().getDate(),
                            x.getRight().getTime(), ZoneOffset.ofHours(0));
                    // Build the Immutable pair with the Index again:
                    return new ImmutablePair<>(x.getLeft(), measurementTime);
                })
                // Now sort the Measurements by their Timestamp:
                .sorted((x, y) -> byMeasurementTime.compare(x.getRight(), y.getRight()))
                // Take only the Index:
                .map(x -> x.getLeft())
                // And turn it into a List:
                .collect(Collectors.toList());
    }

    // Now sorts the File by Line Number:
    writeSortedFileByIndices(csvLocalWeatherDataUnsortedFilePath, indices, csvLocalWeatherDataSortedFilePath);
}

From source file:io.druid.query.aggregation.datasketches.quantiles.GenerateTestData.java

public static void main(String[] args) throws Exception {
    Path buildPath = FileSystems.getDefault().getPath("doubles_build_data.tsv");
    Path sketchPath = FileSystems.getDefault().getPath("doubles_sketch_data.tsv");
    BufferedWriter buildData = Files.newBufferedWriter(buildPath, StandardCharsets.UTF_8);
    BufferedWriter sketchData = Files.newBufferedWriter(sketchPath, StandardCharsets.UTF_8);
    Random rand = new Random();
    int sequenceNumber = 0;
    for (int i = 0; i < 20; i++) {
        int product = rand.nextInt(10);
        UpdateDoublesSketch sketch = UpdateDoublesSketch.builder().build();
        for (int j = 0; j < 20; j++) {
            double value = rand.nextDouble();
            buildData.write("2016010101");
            buildData.write('\t');
            buildData.write(Integer.toString(sequenceNumber)); // dimension with unique numbers for ingesting raw data
            buildData.write('\t');
            buildData.write(Integer.toString(product)); // product dimension
            buildData.write('\t');
            buildData.write(Double.toString(value));
            buildData.newLine();/*from w  ww .j  a v  a2 s  .  co m*/
            sketch.update(value);
            sequenceNumber++;
        }
        sketchData.write("2016010101");
        sketchData.write('\t');
        sketchData.write(Integer.toString(product)); // product dimension
        sketchData.write('\t');
        sketchData.write(Base64.encodeBase64String(sketch.toByteArray(true)));
        sketchData.newLine();
    }
    buildData.close();
    sketchData.close();
}

From source file:org.apache.druid.query.aggregation.datasketches.quantiles.GenerateTestData.java

public static void main(String[] args) throws Exception {
    Path buildPath = FileSystems.getDefault().getPath("doubles_build_data.tsv");
    Path sketchPath = FileSystems.getDefault().getPath("doubles_sketch_data.tsv");
    BufferedWriter buildData = Files.newBufferedWriter(buildPath, StandardCharsets.UTF_8);
    BufferedWriter sketchData = Files.newBufferedWriter(sketchPath, StandardCharsets.UTF_8);
    Random rand = ThreadLocalRandom.current();
    int sequenceNumber = 0;
    for (int i = 0; i < 20; i++) {
        int product = rand.nextInt(10);
        UpdateDoublesSketch sketch = UpdateDoublesSketch.builder().build();
        for (int j = 0; j < 20; j++) {
            double value = rand.nextDouble();
            buildData.write("2016010101");
            buildData.write('\t');
            buildData.write(Integer.toString(sequenceNumber)); // dimension with unique numbers for ingesting raw data
            buildData.write('\t');
            buildData.write(Integer.toString(product)); // product dimension
            buildData.write('\t');
            buildData.write(Double.toString(value));
            buildData.newLine();/*w w w  .  ja  va 2  s .  co  m*/
            sketch.update(value);
            sequenceNumber++;
        }
        sketchData.write("2016010101");
        sketchData.write('\t');
        sketchData.write(Integer.toString(product)); // product dimension
        sketchData.write('\t');
        sketchData.write(Base64.encodeBase64String(sketch.toByteArray(true)));
        sketchData.newLine();
    }
    buildData.close();
    sketchData.close();
}

From source file:Search.java

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

    Path searchFile = Paths.get("Demo.jpg");
    Search walk = new Search(searchFile);
    EnumSet<FileVisitOption> opts = EnumSet.of(FileVisitOption.FOLLOW_LINKS);

    Iterable<Path> dirs = FileSystems.getDefault().getRootDirectories();
    for (Path root : dirs) {
        if (!walk.found) {
            Files.walkFileTree(root, opts, Integer.MAX_VALUE, walk);
        }//ww  w. j av  a 2  s .  co  m
    }

    if (!walk.found) {
        System.out.println("The file " + searchFile + " was not found!");
    }
}

From source file:com.octo.mbo.CopyNotes.java

public static void main(String[] args) throws JAXBException, IOException {
    try {/*  w  w w.jav  a2 s  . com*/
        CommandLine cli = parseCommandLine(args);

        final String srcFilePath = cli.getOptionValue("s");
        final String targetFilePath = cli.getOptionValue("t");

        //Dependency injection
        com.octo.mbo.io.Util util = new Util();
        Loader loader = new Loader(new XmlPackageFactory(), new Pptx4jPackageFactory(), util);
        Processor processor = new Processor(new Merger(), loader, new SlideUpdator(), new XmlPackageFactory(),
                util);
        Orchestrator orchestrator = new Orchestrator(loader, processor);
        orchestrator.run(srcFilePath, targetFilePath, FileSystems.getDefault());

    } catch (CommandLineException clex) {
        log.debug("Error parsing the command line. Please use CopyComment --help", clex);
        //Error messages are already printed by the parseCommandeLine() method
        log.error(clex.getMessage());
        System.exit(-1);
    } catch (CopyNotesException ccex) {
        log.error("Internal error processing the document. Exiting", ccex);
        System.exit(-1);
    }
}

From source file:com.nexmo.client.examples.TestVoiceCall.java

public static void main(String[] argv) throws Exception {
    Options options = new Options().addOption("v", "Verbosity")
            .addOption("f", "from", true, "Phone number to call from")
            .addOption("t", "to", true, "Phone number to call")
            .addOption("h", "webhook", true, "URL to call for instructions");
    CommandLineParser parser = new DefaultParser();

    CommandLine cli;/* ww  w  .  j  a  va2  s .  c o  m*/
    try {
        cli = parser.parse(options, argv);
    } catch (ParseException exc) {
        System.err.println("Parsing failed: " + exc.getMessage());
        System.exit(128);
        return;
    }

    Queue<String> args = new LinkedList<String>(cli.getArgList());
    String from = cli.getOptionValue("f");
    String to = cli.getOptionValue("t");
    System.out.println("From: " + from);
    System.out.println("To: " + to);

    NexmoClient client = new NexmoClient(new JWTAuthMethod("951614e0-eec4-4087-a6b1-3f4c2f169cb0",
            FileSystems.getDefault().getPath("valid_application_key.pem")));
    client.getVoiceClient().createCall(
            new Call(to, from, "https://nexmo-community.github.io/ncco-examples/first_call_talk.json"));
}