Example usage for java.nio.file Files newDirectoryStream

Introduction

In this page you can find the example usage for java.nio.file Files newDirectoryStream.

Prototype

public static DirectoryStream<Path> newDirectoryStream(Path dir) throws IOException 

Source Link

Document

Opens a directory, returning a DirectoryStream to iterate over all entries in the directory.

Usage

From source file:Main.java

public static void main(String[] args) {
    Path directory = Paths.get("c:/");
    try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(directory)) {
        for (Path file : directoryStream) {
            System.out.println(file.getFileName());
        }//from   w  w  w. ja  va2s.c  o  m
    } catch (IOException | DirectoryIteratorException ex) {
        ex.printStackTrace();
    }
}

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From source file:Test.java

public static void main(String[] args) {
    Path directory = Paths.get("/home");
    try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(directory)) {
        for (Path file : directoryStream) {
            System.out.println(file.getFileName());
        }/*from w ww  .j a v a 2 s .c o  m*/
    } catch (IOException | DirectoryIteratorException ex) {
        ex.printStackTrace();
    }
}

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From source file:Main.java

public static void main(String[] args) {

    Path path = Paths.get("C:/tutorial/Java/JavaFX");

    //no filter applyied
    try (DirectoryStream<Path> ds = Files.newDirectoryStream(path)) {
        for (Path file : ds) {
            System.out.println(file.getFileName());
        }/*from w w  w . j a  v  a2  s. c  o m*/
    } catch (IOException e) {
        System.err.println(e);
    }

}

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From source file:Test.java

public static void main(String args[]) throws IOException {
    Path path = Paths.get("home/docs");
    SecureDirectoryStream<Path> sds = (SecureDirectoryStream) Files.newDirectoryStream(path);
    PosixFileAttributeView view = sds.getFileAttributeView(PosixFileAttributeView.class);
    PosixFileAttributes attributes = view.readAttributes();
    Set<PosixFilePermission> permissions = attributes.permissions();

    for (PosixFilePermission permission : permissions) {
        System.out.print(permission.toString() + ' ');
    }//from www .ja v a2 s  .  c  o  m
}

---

From source file:Test.java

public static void main(String[] args) throws Exception {
    Map<String, String> attributes = new HashMap<>();
    attributes.put("create", "true");
    URI zipFile = URI.create("jar:file:/home.zip");
    try (FileSystem zipFileSys = FileSystems.newFileSystem(zipFile, attributes);) {
        Path path = zipFileSys.getPath("docs");
        Files.createDirectory(path);
        try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(zipFileSys.getPath("/"));) {
            for (Path file : directoryStream) {
                System.out.println(file.getFileName());
            }//from   ww  w.j  av a2 s .co m
        }
    }
}

---

From source file:training.w2d34e2.java

public static void main(String[] args) {

    final String srcDirPath = "/Users/venkataraghav/Work/training/Sample/Week2/source";
    final String desDirPath = "/Users/venkataraghav/Work/training/Sample/Week2/destination";

    DirectoryStream<Path> directoryStream = null;

    try {/*w w w .  j ava 2 s  .  c o m*/

        directoryStream = Files.newDirectoryStream(Paths.get(srcDirPath));

        File f = null;

        for (Path filePath : directoryStream) {

            String fName = filePath.getFileName().toString();

            f = new File(desDirPath + "/" + fName);

            int i = 0;

            while (f.exists()) {

                i++;

                String name = fName.substring(0, fName.indexOf('.'));

                String extension = fName.substring(fName.indexOf('.'));

                f = new File(desDirPath + "/" + name + "-" + i + extension);

            }

            FileUtils.copyFile(filePath.toFile(), f);
        }

        directoryStream.close();

    }

    catch (IOException ioe) {

        ioe.printStackTrace();
    }

}

---

From source file:GIST.IzbirkomExtractor.IzbirkomExtractor.java

/**
 * @param args/* w  w w.  ja  v  a 2s  .  com*/
 */
public static void main(String[] args) {

    // process command-line options
    Options options = new Options();
    options.addOption("n", "noaddr", false, "do not do any address matching (for testing)");
    options.addOption("i", "info", false, "create and populate address information table");
    options.addOption("h", "help", false, "this message");

    // database connection
    options.addOption("s", "server", true, "database server to connect to");
    options.addOption("d", "database", true, "OSM database name");
    options.addOption("u", "user", true, "OSM database user name");
    options.addOption("p", "pass", true, "OSM database password");

    // logging options
    options.addOption("l", "logdir", true, "log file directory (default './logs')");
    options.addOption("e", "loglevel", true, "log level (default 'FINEST')");

    // automatically generate the help statement
    HelpFormatter help_formatter = new HelpFormatter();

    // database URI for connection
    String dburi = null;

    // Information message for help screen
    String info_msg = "IzbirkomExtractor [options] <html_directory>";

    try {
        CommandLineParser parser = new GnuParser();
        CommandLine cmd = parser.parse(options, args);

        if (cmd.hasOption('h') || cmd.getArgs().length != 1) {
            help_formatter.printHelp(info_msg, options);
            System.exit(1);
        }

        /* prohibit n and i together */
        if (cmd.hasOption('n') && cmd.hasOption('i')) {
            System.err.println("Options 'n' and 'i' cannot be used together.");
            System.exit(1);
        }

        /* require database arguments without -n */
        if (cmd.hasOption('n')
                && (cmd.hasOption('s') || cmd.hasOption('d') || cmd.hasOption('u') || cmd.hasOption('p'))) {
            System.err.println("Options 'n' and does not need any databse parameters.");
            System.exit(1);
        }

        /* require all 4 database options to be used together */
        if (!cmd.hasOption('n')
                && !(cmd.hasOption('s') && cmd.hasOption('d') && cmd.hasOption('u') && cmd.hasOption('p'))) {
            System.err.println(
                    "For database access all of the following arguments have to be specified: server, database, user, pass");
            System.exit(1);
        }

        /* useful variables */
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'kk:mm");
        String dateString = formatter.format(new Date());

        /* setup logging */
        File logdir = new File(cmd.hasOption('l') ? cmd.getOptionValue('l') : "logs");
        FileUtils.forceMkdir(logdir);
        File log_file_name = new File(
                logdir + "/" + IzbirkomExtractor.class.getName() + "-" + formatter.format(new Date()) + ".log");
        FileHandler log_file = new FileHandler(log_file_name.getPath());

        /* create "latest" link to currently created log file */
        Path latest_log_link = Paths.get(logdir + "/latest");
        Files.deleteIfExists(latest_log_link);
        Files.createSymbolicLink(latest_log_link, Paths.get(log_file_name.getName()));

        log_file.setFormatter(new SimpleFormatter());
        LogManager.getLogManager().reset(); // prevents logging to console
        logger.addHandler(log_file);
        logger.setLevel(cmd.hasOption('e') ? Level.parse(cmd.getOptionValue('e')) : Level.FINEST);

        // open directory with HTML files and create file list
        File dir = new File(cmd.getArgs()[0]);
        if (!dir.isDirectory()) {
            System.err.println("Unable to find directory '" + cmd.getArgs()[0] + "', exiting");
            System.exit(1);
        }
        PathMatcher pmatcher = FileSystems.getDefault()
                .getPathMatcher("glob:?  * ?*.html");
        ArrayList<File> html_files = new ArrayList<>();
        for (Path file : Files.newDirectoryStream(dir.toPath()))
            if (pmatcher.matches(file.getFileName()))
                html_files.add(file.toFile());
        if (html_files.size() == 0) {
            System.err.println("No matching HTML files found in '" + dir.getAbsolutePath() + "', exiting");
            System.exit(1);
        }

        // create csvResultSink
        FileOutputStream csvout_file = new FileOutputStream("parsed_addresses-" + dateString + ".csv");
        OutputStreamWriter csvout = new OutputStreamWriter(csvout_file, "UTF-8");
        ResultSink csvResultSink = new CSVResultSink(csvout, new CSVStrategy('|', '"', '#'));

        // Connect to DB and osmAddressMatcher
        AddressMatcher osmAddressMatcher;
        DBSink dbSink = null;
        DBInfoSink dbInfoSink = null;
        if (cmd.hasOption('n')) {
            osmAddressMatcher = new DummyAddressMatcher();
        } else {
            dburi = "jdbc:postgresql://" + cmd.getOptionValue('s') + "/" + cmd.getOptionValue('d');
            Connection con = DriverManager.getConnection(dburi, cmd.getOptionValue('u'),
                    cmd.getOptionValue('p'));
            osmAddressMatcher = new OsmAddressMatcher(con);
            dbSink = new DBSink(con);
            if (cmd.hasOption('i'))
                dbInfoSink = new DBInfoSink(con);
        }

        /* create resultsinks */
        SinkMultiplexor sm = SinkMultiplexor.newSinkMultiplexor();
        sm.addResultSink(csvResultSink);
        if (dbSink != null) {
            sm.addResultSink(dbSink);
            if (dbInfoSink != null)
                sm.addResultSink(dbInfoSink);
        }

        // create tableExtractor
        TableExtractor te = new TableExtractor(osmAddressMatcher, sm);

        // TODO: printout summary of options: processing date/time, host, directory of HTML files, jdbc uri, command line with parameters

        // iterate through files
        logger.info("Start processing " + html_files.size() + " files in " + dir);
        for (int i = 0; i < html_files.size(); i++) {
            System.err.println("Parsing #" + i + ": " + html_files.get(i));
            te.processHTMLfile(html_files.get(i));
        }

        System.err.println("Processed " + html_files.size() + " HTML files");
        logger.info("Finished processing " + html_files.size() + " files in " + dir);

    } catch (ParseException e1) {
        System.err.println("Failed to parse CLI: " + e1.getMessage());
        help_formatter.printHelp(info_msg, options);
        System.exit(1);
    } catch (IOException e) {
        System.err.println("I/O Exception: " + e.getMessage());
        e.printStackTrace();
        System.exit(1);
    } catch (SQLException e) {
        System.err.println("Database '" + dburi + "': " + e.getMessage());
        System.exit(1);
    } catch (ResultSinkException e) {
        System.err.println("Failed to initialize ResultSink: " + e.getMessage());
        System.exit(1);
    } catch (TableExtractorException e) {
        System.err.println("Failed to initialize Table Extractor: " + e.getMessage());
        System.exit(1);
    } catch (CloneNotSupportedException | IllegalAccessException | InstantiationException e) {
        System.err.println("Something really odd happened: " + e.getMessage());
        e.printStackTrace();
        System.exit(1);
    }
}

---

From source file:edu.harvard.hul.ois.drs.pdfaconvert.PdfaConvert.java

public static void main(String[] args) throws IOException {
    if (logger == null) {
        System.out.println("About to initialize Log4j");
        logger = LogManager.getLogger();
        System.out.println("Finished initializing Log4j");
    }/* ww w  .j  a  v a  2s . c  o  m*/

    logger.debug("Entering main()");

    // WIP: the following command line code was pulled from FITS
    Options options = new Options();
    Option inputFileOption = new Option(PARAM_I, true, "input file");
    options.addOption(inputFileOption);
    options.addOption(PARAM_V, false, "print version information");
    options.addOption(PARAM_H, false, "help information");
    options.addOption(PARAM_O, true, "output sub-directory");

    CommandLineParser parser = new DefaultParser();
    CommandLine cmd = null;
    try {
        cmd = parser.parse(options, args, true);
    } catch (ParseException e) {
        System.err.println(e.getMessage());
        System.exit(1);
    }

    // print version info
    if (cmd.hasOption(PARAM_V)) {
        if (StringUtils.isEmpty(applicationVersion)) {
            applicationVersion = "<not set>";
            System.exit(1);
        }
        System.out.println("Version: " + applicationVersion);
        System.exit(0);
    }

    // print help info
    if (cmd.hasOption(PARAM_H)) {
        displayHelp();
        System.exit(0);
    }

    // input parameter
    if (cmd.hasOption(PARAM_I)) {
        String input = cmd.getOptionValue(PARAM_I);
        boolean hasValue = cmd.hasOption(PARAM_I);
        logger.debug("Has option {} value: [{}]", PARAM_I, hasValue);
        String paramVal = cmd.getOptionValue(PARAM_I);
        logger.debug("value of option: [{}] ****", paramVal);

        File inputFile = new File(input);
        if (!inputFile.exists()) {
            logger.warn("{} does not exist or is not readable.", input);
            System.exit(1);
        }

        String subDir = cmd.getOptionValue(PARAM_O);
        PdfaConvert convert;
        if (!StringUtils.isEmpty(subDir)) {
            convert = new PdfaConvert(subDir);
        } else {
            convert = new PdfaConvert();
        }
        if (inputFile.isDirectory()) {
            if (inputFile.listFiles() == null || inputFile.listFiles().length < 1) {
                logger.warn("Input directory is empty, nothing to process.");
                System.exit(1);
            } else {
                logger.debug("Have directory: [{}] with file count: {}", inputFile.getAbsolutePath(),
                        inputFile.listFiles().length);
                DirectoryStream<Path> dirStream = null;
                dirStream = Files.newDirectoryStream(inputFile.toPath());
                for (Path filePath : dirStream) {
                    logger.debug("Have file name: {}", filePath.toString());
                    // Note: only handling files, not recursively going into sub-directories
                    if (filePath.toFile().isFile()) {
                        // Catch possible exception for each file so can handle other files in directory.
                        try {
                            convert.examine(filePath.toFile());
                        } catch (Exception e) {
                            logger.error("Problem processing file: {} -- Error message: {}",
                                    filePath.getFileName(), e.getMessage());
                        }
                    } else {
                        logger.warn("Not a file so not processing: {}", filePath.toString()); // could be a directory but not recursing
                    }
                }
                dirStream.close();
            }
        } else {
            logger.debug("About to process file: {}", inputFile.getPath());
            try {
                convert.examine(inputFile);
            } catch (Exception e) {
                logger.error("Problem processing file: {} -- Error message: {}", inputFile.getName(),
                        e.getMessage());
                logger.debug("Problem processing file: {} -- Error message: {}", inputFile.getName(),
                        e.getMessage(), e);
            }
        }
    } else {
        System.err.println("Missing required option: " + PARAM_I);
        displayHelp();
        System.exit(-1);
    }

    System.exit(0);
}

---

From source file:com.nwn.NwnFileHandler.java

/**
 * Get files in given directory/*from w ww .j  av a 2  s .co m*/
 * @param dir Path to directory for parsing
 * @return ArrayList of files in directory
 */
public static ArrayList<Path> getFilesInDirectory(Path dir) {
    ArrayList<Path> filesInDir = new ArrayList<Path>();
    try {
        DirectoryStream<Path> dirStream = Files.newDirectoryStream(dir);
        for (Path file : dirStream) {
            filesInDir.add(file);
        }
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    return filesInDir;
}

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From source file:com.basistech.rosette.apimodel.NonNullTest.java

@Parameterized.Parameters(name = "{0}")
public static Collection<Object[]> data() throws URISyntaxException, IOException {
    File dir = new File("src/test/data");
    Collection<Object[]> params = new ArrayList<>();
    try (DirectoryStream<Path> paths = Files.newDirectoryStream(dir.toPath())) {
        for (Path file : paths) {
            if (file.toString().endsWith(".json")) {
                String className = file.getFileName().toString().replace(".json", "");
                params.add(new Object[] { NonNullTest.class.getPackage().getName() + "." + className,
                        file.toFile() });
            }/* w  ww.j av  a 2 s. co  m*/
        }
    }
    return params;
}

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