Example usage for java.nio.file Path getFileName

Introduction

In this page you can find the example usage for java.nio.file Path getFileName.

Prototype

Path getFileName();

Source Link

Document

Returns the name of the file or directory denoted by this path as a Path object.

Usage

From source file:edu.usc.goffish.gofs.tools.GoFSFormat.java

public static void main(String[] args) throws IOException {
    if (args.length < REQUIRED_ARGS) {
        PrintUsageAndQuit(null);//from   www  . j  a v a  2 s  .  c  om
    }

    if (args.length == 1 && args[0].equals("-help")) {
        PrintUsageAndQuit(null);
    }

    Path executableDirectory;
    try {
        executableDirectory = Paths
                .get(GoFSFormat.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();
    } catch (URISyntaxException e) {
        throw new RuntimeException("Unexpected error retrieving executable location", e);
    }
    Path configPath = executableDirectory.resolve(DEFAULT_CONFIG).normalize();

    boolean copyBinaries = false;

    // parse optional arguments
    int i = 0;
    OptArgLoop: for (i = 0; i < args.length - REQUIRED_ARGS; i++) {
        switch (args[i]) {
        case "-config":
            i++;

            try {
                configPath = Paths.get(args[i]);
            } catch (InvalidPathException e) {
                PrintUsageAndQuit("Config file - " + e.getMessage());
            }

            break;
        case "-copyBinaries":
            copyBinaries = true;
            break;
        default:
            break OptArgLoop;
        }
    }

    if (args.length - i < REQUIRED_ARGS) {
        PrintUsageAndQuit(null);
    }

    // finished parsing args
    if (i < args.length) {
        PrintUsageAndQuit("Unrecognized argument \"" + args[i] + "\"");
    }

    // parse config

    System.out.println("Parsing config...");

    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setDelimiterParsingDisabled(true);
    try {
        config.load(Files.newInputStream(configPath));
    } catch (ConfigurationException e) {
        throw new IOException(e);
    }

    // retrieve data nodes
    ArrayList<URI> dataNodes;
    {
        String[] dataNodesArray = config.getStringArray(GOFS_DATANODES_KEY);
        if (dataNodesArray.length == 0) {
            throw new ConversionException("Config must contain key " + GOFS_DATANODES_KEY);
        }

        dataNodes = new ArrayList<>(dataNodesArray.length);

        if (dataNodesArray.length == 0) {
            throw new ConversionException("Config key " + GOFS_DATANODES_KEY
                    + " has invalid format - must define at least one data node");
        }

        try {
            for (String node : dataNodesArray) {
                URI dataNodeURI = new URI(node);

                if (!"file".equalsIgnoreCase(dataNodeURI.getScheme())) {
                    throw new ConversionException("config key " + GOFS_DATANODES_KEY + " value \"" + dataNodeURI
                            + "\" has invalid format - data node urls must have 'file' scheme");
                } else if (dataNodeURI.getPath() == null || dataNodeURI.getPath().isEmpty()) {
                    throw new ConversionException("config key " + GOFS_DATANODES_KEY + " value \"" + dataNodeURI
                            + "\" has invalid format - data node urls must have an absolute path specified");
                }

                // ensure uri ends with a slash, so we know it is a directory
                if (!dataNodeURI.getPath().endsWith("/")) {
                    dataNodeURI = dataNodeURI.resolve(dataNodeURI.getPath() + "/");
                }

                dataNodes.add(dataNodeURI);
            }
        } catch (URISyntaxException e) {
            throw new ConversionException(
                    "Config key " + GOFS_DATANODES_KEY + " has invalid format - " + e.getMessage());
        }
    }

    // validate serializer type
    Class<? extends ISliceSerializer> serializerType;
    {
        String serializerTypeName = config.getString(GOFS_SERIALIZER_KEY);
        if (serializerTypeName == null) {
            throw new ConversionException("Config must contain key " + GOFS_SERIALIZER_KEY);
        }

        try {
            serializerType = SliceSerializerProvider.loadSliceSerializerType(serializerTypeName);
        } catch (ReflectiveOperationException e) {
            throw new ConversionException(
                    "Config key " + GOFS_SERIALIZER_KEY + " has invalid format - " + e.getMessage());
        }
    }

    // retrieve name node
    IInternalNameNode nameNode;
    try {
        nameNode = NameNodeProvider.loadNameNodeFromConfig(config, GOFS_NAMENODE_TYPE_KEY,
                GOFS_NAMENODE_LOCATION_KEY);
    } catch (ReflectiveOperationException e) {
        throw new RuntimeException("Unable to load name node", e);
    }

    System.out.println("Contacting name node...");

    // validate name node
    if (!nameNode.isAvailable()) {
        throw new IOException("Name node at " + nameNode.getURI() + " is not available");
    }

    System.out.println("Contacting data nodes...");

    // validate data nodes
    for (URI dataNode : dataNodes) {
        // only attempt ssh if host exists
        if (dataNode.getHost() != null) {
            try {
                SSHHelper.SSH(dataNode, "true");
            } catch (IOException e) {
                throw new IOException("Data node at " + dataNode + " is not available", e);
            }
        }
    }

    // create temporary directory
    Path workingDir = Files.createTempDirectory("gofs_format");
    try {
        // create deploy directory
        Path deployDirectory = Files.createDirectory(workingDir.resolve(DATANODE_DIR_NAME));

        // create empty slice directory
        Files.createDirectory(deployDirectory.resolve(DataNode.DATANODE_SLICE_DIR));

        // copy binaries
        if (copyBinaries) {
            System.out.println("Copying binaries...");
            FileUtils.copyDirectory(executableDirectory.toFile(),
                    deployDirectory.resolve(executableDirectory.getFileName()).toFile());
        }

        // write config file
        Path dataNodeConfigFile = deployDirectory.resolve(DataNode.DATANODE_CONFIG);
        try {
            // create config for every data node and scp deploy folder into place
            for (URI dataNodeParent : dataNodes) {
                URI dataNode = dataNodeParent.resolve(DATANODE_DIR_NAME);

                PropertiesConfiguration datanode_config = new PropertiesConfiguration();
                datanode_config.setDelimiterParsingDisabled(true);
                datanode_config.setProperty(DataNode.DATANODE_INSTALLED_KEY, true);
                datanode_config.setProperty(DataNode.DATANODE_NAMENODE_TYPE_KEY,
                        config.getString(GOFS_NAMENODE_TYPE_KEY));
                datanode_config.setProperty(DataNode.DATANODE_NAMENODE_LOCATION_KEY,
                        config.getString(GOFS_NAMENODE_LOCATION_KEY));
                datanode_config.setProperty(DataNode.DATANODE_LOCALHOSTURI_KEY, dataNode.toString());

                try {
                    datanode_config.save(Files.newOutputStream(dataNodeConfigFile));
                } catch (ConfigurationException e) {
                    throw new IOException(e);
                }

                System.out.println("Formatting data node " + dataNode.toString() + "...");

                // scp everything into place on the data node
                SCPHelper.SCP(deployDirectory, dataNodeParent);

                // update name node
                nameNode.addDataNode(dataNode);
            }

            // update name node
            nameNode.setSerializer(serializerType);
        } catch (Exception e) {
            System.out.println(
                    "ERROR: data node formatting interrupted - name node and data nodes are in an inconsistent state and require clean up");
            throw e;
        }

        System.out.println("GoFS format complete");

    } finally {
        FileUtils.deleteQuietly(workingDir.toFile());
    }
}

---

From source file:Test.java

private static void listPermissions(Path path) throws Exception {
    System.out.println("Permission for " + path.getFileName());
    PosixFileAttributeView view = Files.getFileAttributeView(path, PosixFileAttributeView.class);

    PosixFileAttributes attributes = view.readAttributes();

    System.out.println("Group: " + attributes.group().getName());
    System.out.println("Owner: " + attributes.owner().getName());

    Set<PosixFilePermission> permissions = attributes.permissions();

    System.out.print("Permissions: ");
    for (PosixFilePermission permission : permissions) {
        System.out.print(permission.name() + " ");
    }/*from  ww  w  .  j a  v  a 2 s  .  co  m*/
}

---

From source file:Test.java

private static void removePermission(Path path, PosixFilePermission permission) throws Exception {
    System.out.println("\nRemoving permission for " + path.getFileName());
    PosixFileAttributeView view = Files.getFileAttributeView(path, PosixFileAttributeView.class);

    PosixFileAttributes attributes = view.readAttributes();

    Set<PosixFilePermission> permissions = attributes.permissions();
    permissions.remove(permission);// ww  w.  ja va  2  s .  c o  m

    view.setPermissions(permissions);
    System.out.println();
}

---

From source file:com.teradata.tempto.internal.convention.SqlTestsFileUtils.java

public static String getFilenameWithoutExtension(Path path) {
    return removeExtension(path.getFileName().toString());
}

---

From source file:Test.java

private static void setGroupPrincipal(Path path, String userName, String groupName) throws Exception {
    System.out.println("Setting owner for " + path.getFileName());
    PosixFileAttributeView view = Files.getFileAttributeView(path, PosixFileAttributeView.class);

    PosixFileAttributes attributes = view.readAttributes();
    System.out.println("Old Group: " + attributes.group().getName());
    System.out.println("Old Owner: " + attributes.owner().getName());

    UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService();
    UserPrincipal userPrincipal = lookupService.lookupPrincipalByName(userName);
    GroupPrincipal groupPrincipal = lookupService.lookupPrincipalByGroupName(groupName);
    view.setGroup(groupPrincipal);// ww w. j  a v  a2  s .c o  m
    view.setOwner(userPrincipal);

    attributes = view.readAttributes();
    System.out.println("New Group: " + attributes.group().getName());
    System.out.println("New Owner: " + attributes.owner().getName());
}

---

From source file:hrytsenko.gscripts.App.java

private static void executeCustomScript(GroovyShell shell, Path script) {
    Path scriptFilename = script.getFileName();
    LOGGER.info("Execute: {}.", scriptFilename);

    try (BufferedReader reader = Files.newBufferedReader(script, StandardCharsets.UTF_8)) {
        shell.evaluate(reader);/* w ww. jav a2 s. c  om*/
    } catch (IOException exception) {
        throw new AppException(String.format("Cannot execute script %s.", scriptFilename), exception);
    }
}

---

From source file:Main.java

private static Path unzip(Path tmpDir, Path zipPath, String name) throws IOException {
    Path outPath = tmpDir.resolve(zipPath.getFileName());
    try (ZipFile zipFile = new ZipFile(zipPath.toFile())) {
        Files.copy(zipFile.getInputStream(zipFile.getEntry(name)), outPath,
                StandardCopyOption.REPLACE_EXISTING);
        return outPath;
    }/*  w w w  . ja  v  a2s.c om*/
}

---

From source file:com.teradata.tempto.internal.convention.SqlTestsFileUtils.java

public static String getExtension(Path path) {
    return FilenameUtils.getExtension(path.getFileName().toString());
}

---

From source file:fi.hsl.parkandride.ExportQTypes.java

private static void deleteOldQTypes(Path packageDir) throws IOException {
    Files.walkFileTree(packageDir, new SimpleFileVisitor<Path>() {
        @Override//from   w ww  .  ja  va  2s .c  om
        public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
            if (path.getFileName().toString().startsWith(NAME_PREFIX)) {
                Files.delete(path);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}

---

From source file:com.ignorelist.kassandra.steam.scraper.LibraryScanner.java

public static Set<Long> findGames(Path path) throws IOException {
    Set<Long> gameIds = new HashSet<>();
    DirectoryStream<Path> directoryStream = null;
    try {/*ww w. jav a2 s. c  om*/
        directoryStream = Files.newDirectoryStream(path, new DirectoryStream.Filter<Path>() {

            @Override
            public boolean accept(Path entry) throws IOException {
                return Files.isRegularFile(entry);
            }
        });
        for (Path f : directoryStream) {
            final String fileName = f.getFileName().toString();
            Matcher matcher = PATTERN.matcher(fileName);
            if (matcher.matches()) {
                gameIds.add(Long.parseLong(matcher.group(1)));
            }
        }
        return gameIds;
    } finally {
        IOUtils.closeQuietly(directoryStream);
    }
}

---

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