Example usage for java.nio.file Files walk

List of usage examples for java.nio.file Files walk

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Introduction

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

Prototype

public static Stream<Path> walk(Path start, FileVisitOption... options) throws IOException

Source Link

Document

Return a Stream that is lazily populated with Path by walking the file tree rooted at a given starting file.

Usage

From source file:squash.deployment.lambdas.utils.FileUtils.java

/**
 * Adds revving suffix to all filenames beneath a folder.
 * //ww  w  . j  a  v  a2 s .com
 * <p>Adds revving suffix to all filenames beneath a folder, recursing into subfolders.
 *    Only js and css files are revved.
 * 
 *    @param suffix the suffix to add to all filenames.
 *    @param startFolder the folder at root of tree within which to suffix files
 *    @param logger a CloudwatchLogs logger.
 * @throws IOException
 */
public static void appendRevvingSuffix(String suffix, Path startFolder, LambdaLogger logger)
        throws IOException {
    Files.walk(startFolder, FileVisitOption.FOLLOW_LINKS).filter(Files::isRegularFile).forEach(path -> {
        File file = path.toFile();
        if (file.isDirectory()) {
            return;
        }
        String absolutePath = file.getAbsolutePath();
        String fileExtension = FilenameUtils.getExtension(absolutePath);
        if (!fileExtension.equals("js") && !fileExtension.equals("css")) {
            // We rev only js and css
            return;
        }
        String suffixedName = FilenameUtils.getBaseName(absolutePath) + "_" + suffix + "." + fileExtension;
        File suffixedFile = new File(file.getParentFile(), suffixedName);
        file.renameTo(suffixedFile);
        logger.log("Appended suffix to file: " + absolutePath + ", giving: " + suffixedFile.getAbsolutePath());
    });
}

From source file:org.apache.gobblin.config.store.zip.ZipFileConfigStore.java

/**
 * Retrieves all the children of the given {@link ConfigKeyPath} using {@link Files#walk} to list files
 *///from www . ja  v a 2s.  c  om
@Override
public Collection<ConfigKeyPath> getChildren(ConfigKeyPath configKey, String version)
        throws VersionDoesNotExistException {
    Preconditions.checkNotNull(configKey, "configKey cannot be null!");
    Preconditions.checkArgument(version.equals(getCurrentVersion()));

    List<ConfigKeyPath> children = new ArrayList<>();
    Path datasetDir = getDatasetDirForKey(configKey);

    try {

        if (!Files.exists(this.fs.getPath(datasetDir.toString()))) {
            return children;
        }

        Stream<Path> files = Files.walk(datasetDir, 1);

        for (Iterator<Path> it = files.iterator(); it.hasNext();) {
            Path path = it.next();

            if (Files.isDirectory(path) && !path.equals(datasetDir)) {
                children.add(configKey
                        .createChild(StringUtils.removeEnd(path.getName(path.getNameCount() - 1).toString(),
                                SingleLinkedListConfigKeyPath.PATH_DELIMETER)));
            }

        }
        return children;
    } catch (IOException e) {
        throw new RuntimeException(
                String.format("Error while getting children for configKey: \"%s\"", configKey), e);
    }
}

From source file:org.ballerinalang.composer.service.workspace.local.LocalFSWorkspace.java

@Override
public void delete(String path, String type) throws IOException {
    Path ioPath = Paths.get(path);
    if (FOLDER_TYPE.equals(type)) {
        Files.walk(ioPath, FileVisitOption.FOLLOW_LINKS).sorted(Comparator.reverseOrder()).map(Path::toFile)
                .forEach(File::delete);
    } else {//  www .  ja  v  a2  s . co  m
        Files.delete(ioPath);
    }
}

From source file:com.ejie.uda.jsonI18nEditor.Editor.java

public void importResources(Path dir) {

    Stream<Path> filter;

    try {/*  w  w w . j  a  va  2  s. c  o  m*/
        if (!closeCurrentSession()) {
            return;
        }
        if (Files.isDirectory(dir, LinkOption.NOFOLLOW_LINKS)) {
            reset();
            resourcesDir = dir;
            filter = Files.walk(resourcesDir, 1).filter(path -> Resources.isResource(path));

        } else {
            reset();
            // Se ha arrastrado un fichero de 18n individual, se debe de obtener los recursos relacionados con el bundle al que pertenece.
            Pattern.matches(BUNDLE_REGEX, dir.getFileName().toString());
            Pattern regex = Pattern.compile(BUNDLE_REGEX);
            resourcesDir = dir.getParent();
            inputFile = dir;
            Matcher regexMatcher = regex.matcher(dir.getFileName().toString());
            if (regexMatcher.find()) {
                this.bundle = regexMatcher.group(1);
                filter = Files.walk(resourcesDir, 1).filter(path -> Resources.isResource(path, this.bundle));
            } else {
                showError(MessageBundle.get("resources.open.error.multiple"));
                return;
            }
            //         Pattern.matches("BUNDLE_REGEX", dir.getFileName().toString());
            //         showError(MessageBundle.get("resources.open.error.multiple"));
            //         return;
        }

        filter.forEach(path -> {
            try {
                Resource resource = Resources.read(path);
                setupResource(resource);
            } catch (Exception e) {
                e.printStackTrace();
                showError(MessageBundle.get("resources.open.error.single", path.toString()));
            }
        });

        List<String> recentDirs = settings.getListProperty("history");
        recentDirs.remove(dir);
        recentDirs.add(dir.toString());
        if (recentDirs.size() > 5) {
            recentDirs.remove(0);
        }
        settings.setProperty("history", recentDirs);
        editorMenu.setRecentItems(Lists.reverse(recentDirs));

        Map<String, String> keys = Maps.newTreeMap();
        resources.forEach(resource -> keys.putAll(resource.getTranslations()));
        //         resources.forEach(resource -> {
        //            
        //            
        //            
        //         });
        List<String> keyList = Lists.newArrayList(keys.keySet());
        translationTree.setModel(new TranslationTreeModel(keyList));

        updateUI();
        //         for (String key : keyList) {
        //            boolean anyEmpty = false;
        //            
        //            for (Resource resource : resources) {
        //               if (StringUtils.isBlank(resource.getTranslation(key))){
        //                  anyEmpty = true;
        //               }
        //            }
        //            
        //            TranslationTreeModel model = (TranslationTreeModel) translationTree.getModel();
        //            TranslationTreeNode node = model.getNodeByKey(key);
        //            
        //            node
        //         }
        //         keyList.stream().filter(key -> {
        //            
        //            resources.stream().filter(resource -> {
        //               return StringUtils.isNotBlank(resource.getTranslation(key));
        //            });
        //            return true;
        //         });
    } catch (IOException e) {
        e.printStackTrace();
        showError(MessageBundle.get("resources.open.error.multiple"));
    }
}

From source file:org.ballerinalang.composer.service.fs.LocalFileSystem.java

@Override
public void delete(String path) throws IOException {
    Path ioPath = Paths.get(path);
    if (ioPath.toFile().isDirectory()) {
        Files.walk(ioPath, FileVisitOption.FOLLOW_LINKS).sorted(Comparator.reverseOrder()).map(Path::toFile)
                .forEach(File::delete);
    } else {//from w  w w. ja v a  2  s. c o m
        Files.delete(ioPath);
    }
}

From source file:com.willwinder.universalgcodesender.utils.FirmwareUtils.java

/**
 * Copy any missing files from the the jar's resources/firmware_config/ dir
 * into the settings/firmware_config dir.
 *//*  w ww  .ja  v a  2s.com*/
public synchronized static void initialize() {
    System.out.println("Initializing firmware... ...");
    File firmwareConfig = new File(SettingsFactory.getSettingsDirectory(), FIRMWARE_CONFIG_DIRNAME);

    // Create directory if it's missing.
    if (!firmwareConfig.exists()) {
        firmwareConfig.mkdirs();
    }

    FileSystem fileSystem = null;

    // Copy firmware config files.
    try {
        final String dir = "/resources/firmware_config/";

        URI location = FirmwareUtils.class.getResource(dir).toURI();

        Path myPath;
        if (location.getScheme().equals("jar")) {
            try {
                // In case the filesystem already exists.
                fileSystem = FileSystems.getFileSystem(location);
            } catch (FileSystemNotFoundException e) {
                // Otherwise create the new filesystem.
                fileSystem = FileSystems.newFileSystem(location, Collections.<String, String>emptyMap());
            }

            myPath = fileSystem.getPath(dir);
        } else {
            myPath = Paths.get(location);
        }

        Stream<Path> files = Files.walk(myPath, 1);
        for (Path path : (Iterable<Path>) () -> files.iterator()) {
            System.out.println(path);
            final String name = path.getFileName().toString();
            File fwConfig = new File(firmwareConfig, name);
            if (name.endsWith(".json")) {
                boolean copyFile = !fwConfig.exists();
                ControllerSettings jarSetting = getSettingsForStream(Files.newInputStream(path));

                // If the file is outdated... ask the user (once).
                if (fwConfig.exists()) {
                    ControllerSettings current = getSettingsForStream(new FileInputStream(fwConfig));
                    boolean outOfDate = current.getVersion() < jarSetting.getVersion();
                    if (outOfDate && !userNotified && !overwriteOldFiles) {
                        int result = NarrowOptionPane.showNarrowConfirmDialog(200,
                                Localization.getString("settings.file.outOfDate.message"),
                                Localization.getString("settings.file.outOfDate.title"),
                                JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                        overwriteOldFiles = result == JOptionPane.OK_OPTION;
                        userNotified = true;
                    }

                    if (overwriteOldFiles) {
                        copyFile = true;
                        jarSetting.getProcessorConfigs().Custom = current.getProcessorConfigs().Custom;
                    }
                }

                // Copy file from jar to firmware_config directory.
                if (copyFile) {
                    try {
                        save(fwConfig, jarSetting);
                    } catch (IOException ex) {
                        logger.log(Level.SEVERE, null, ex);
                    }
                }
            }
        }
    } catch (Exception ex) {
        String errorMessage = String.format("%s %s", Localization.getString("settings.file.generalError"),
                ex.getLocalizedMessage());
        GUIHelpers.displayErrorDialog(errorMessage);
        logger.log(Level.SEVERE, errorMessage, ex);
    } finally {
        if (fileSystem != null) {
            try {
                fileSystem.close();
            } catch (IOException ex) {
                logger.log(Level.SEVERE, "Problem closing filesystem.", ex);
            }
        }
    }

    configFiles.clear();
    for (File f : firmwareConfig.listFiles()) {
        try {
            ControllerSettings config = new Gson().fromJson(new FileReader(f), ControllerSettings.class);
            //ConfigLoader config = new ConfigLoader(f);
            configFiles.put(config.getName(), new ConfigTuple(config, f));
        } catch (FileNotFoundException | JsonSyntaxException | JsonIOException ex) {
            GUIHelpers.displayErrorDialog("Unable to load configuration files: " + f.getAbsolutePath());
        }
    }
}

From source file:org.eclipse.jdt.ls.core.internal.managers.InvisibleProjectImporter.java

private static File findNearbyNonEmptyFile(File nioFile) throws IOException {
    java.nio.file.Path directory = nioFile.getParentFile().toPath();
    try (Stream<java.nio.file.Path> walk = Files.walk(directory, 1)) {
        Optional<java.nio.file.Path> found = walk.filter(Files::isRegularFile).filter(file -> {
            try {
                return file.toString().endsWith(".java")
                        && !Objects.equals(nioFile.getName(), file.toFile().getName()) && Files.size(file) > 0;
            } catch (IOException e) {
                return false;
            }/*from  w  w  w .j  a  v  a  2s  . co  m*/
        }).findFirst();

        if (found.isPresent()) {
            return found.get().toFile();
        }
    } catch (IOException e) {
    }

    return null;
}

From source file:com.massabot.codesender.utils.FirmwareUtils.java

public synchronized static void initialize() {
    System.out.println("Initializing firmware... ...");
    File firmwareConfig = new File(SettingsFactory.getSettingsDirectory(), FIRMWARE_CONFIG_DIRNAME);

    // Create directory if it's missing.
    if (!firmwareConfig.exists()) {
        firmwareConfig.mkdirs();/*  ww w  . j  av  a2 s  . c  om*/
    }

    FileSystem fileSystem = null;

    // Copy firmware config files.
    try {
        final String dir = "/resources/firmware_config/";

        URI location = FirmwareUtils.class.getResource(dir).toURI();

        Path myPath;
        if (location.getScheme().equals("jar")) {
            try {
                // In case the filesystem already exists.
                fileSystem = FileSystems.getFileSystem(location);
            } catch (FileSystemNotFoundException e) {
                // Otherwise create the new filesystem.
                fileSystem = FileSystems.newFileSystem(location, Collections.<String, String>emptyMap());
            }

            myPath = fileSystem.getPath(dir);
        } else {
            myPath = Paths.get(location);
        }

        Stream<Path> files = Files.walk(myPath, 1);
        for (Path path : (Iterable<Path>) () -> files.iterator()) {
            System.out.println(path);
            final String name = path.getFileName().toString();
            File fwConfig = new File(firmwareConfig, name);
            if (name.endsWith(".json")) {
                boolean copyFile = !fwConfig.exists();
                ControllerSettings jarSetting = getSettingsForStream(Files.newInputStream(path));

                // If the file is outdated... ask the user (once).
                if (fwConfig.exists()) {
                    ControllerSettings current = getSettingsForStream(new FileInputStream(fwConfig));
                    boolean outOfDate = current.getVersion() < jarSetting.getVersion();
                    if (outOfDate && !userNotified && !overwriteOldFiles) {
                        int result = NarrowOptionPane.showNarrowConfirmDialog(200,
                                Localization.getString("settings.file.outOfDate.message"),
                                Localization.getString("settings.file.outOfDate.title"),
                                JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                        overwriteOldFiles = result == JOptionPane.OK_OPTION;
                        userNotified = true;
                    }

                    if (overwriteOldFiles) {
                        copyFile = true;
                        jarSetting.getProcessorConfigs().Custom = current.getProcessorConfigs().Custom;
                    }
                }

                // Copy file from jar to firmware_config directory.
                if (copyFile) {
                    try {
                        save(fwConfig, jarSetting);
                    } catch (IOException ex) {
                        logger.log(Level.SEVERE, null, ex);
                    }
                }
            }
        }
    } catch (Exception ex) {
        String errorMessage = String.format("%s %s", Localization.getString("settings.file.generalError"),
                ex.getLocalizedMessage());
        GUIHelpers.displayErrorDialog(errorMessage);
        logger.log(Level.SEVERE, errorMessage, ex);
    } finally {
        if (fileSystem != null) {
            try {
                fileSystem.close();
            } catch (IOException ex) {
                logger.log(Level.SEVERE, "Problem closing filesystem.", ex);
            }
        }
    }

    configFiles.clear();
    for (File f : firmwareConfig.listFiles()) {
        try {
            ControllerSettings config = new Gson().fromJson(new FileReader(f), ControllerSettings.class);
            // ConfigLoader config = new ConfigLoader(f);
            configFiles.put(config.getName(), new ConfigTuple(config, f));
        } catch (FileNotFoundException | JsonSyntaxException | JsonIOException ex) {
            GUIHelpers.displayErrorDialog("Unable to load configuration files: " + f.getAbsolutePath());
        }
    }
}

From source file:org.hyperledger.fabric.sdk.helper.SDKUtil.java

/**
 * Delete a file or directory//from   w w w .j ava  2 s. co m
 * @param file {@link File} representing file or directory
 * @throws IOException
 */
public static void deleteFileOrDirectory(File file) throws IOException {
    if (file.exists()) {
        if (file.isDirectory()) {
            Path rootPath = Paths.get(file.getAbsolutePath());

            Files.walk(rootPath, FileVisitOption.FOLLOW_LINKS).sorted(Comparator.reverseOrder())
                    .map(Path::toFile).forEach(File::delete);
        } else {
            file.delete();
        }
    } else {
        throw new RuntimeException("File or directory does not exist");
    }
}

From source file:com.mesosphere.dcos.cassandra.executor.tasks.RestoreSnapshot.java

@Override
public void run() {
    try {//from   w  w  w . ja  v a  2 s  . c  o  m
        // Send TASK_RUNNING
        sendStatus(driver, Protos.TaskState.TASK_RUNNING, "Started restoring snapshot");

        if (Objects.equals(context.getRestoreType(), new String("new"))) {
            final String keyspaceDirectory = context.getLocalLocation() + File.separator + context.getName()
                    + File.separator + context.getNodeId();

            final String ssTableLoaderBinary = CassandraPaths.create(version).bin().resolve("sstableloader")
                    .toString();
            final String cassandraYaml = CassandraPaths.create(version).cassandraConfig().toString();

            final File keyspacesDirectory = new File(keyspaceDirectory);
            LOGGER.info("Keyspace Directory {} exists: {}", keyspaceDirectory, keyspacesDirectory.exists());

            final File[] keyspaces = keyspacesDirectory.listFiles();

            String libProcessAddress = System.getenv("LIBPROCESS_IP");
            libProcessAddress = StringUtils.isBlank(libProcessAddress)
                    ? InetAddress.getLocalHost().getHostAddress()
                    : libProcessAddress;

            for (File keyspace : keyspaces) {
                final File[] columnFamilies = keyspace.listFiles();

                final String keyspaceName = keyspace.getName();
                if (keyspaceName.equals(StorageUtil.SCHEMA_FILE))
                    continue;
                LOGGER.info("Going to bulk load keyspace: {}", keyspaceName);

                for (File columnFamily : columnFamilies) {
                    final String columnFamilyName = columnFamily.getName();
                    if (columnFamilyName.equals(StorageUtil.SCHEMA_FILE))
                        continue;
                    LOGGER.info("Bulk loading... keyspace: {} column family: {}", keyspaceName,
                            columnFamilyName);

                    final String columnFamilyPath = columnFamily.getAbsolutePath();
                    final List<String> command = Arrays.asList(ssTableLoaderBinary, "-d", libProcessAddress,
                            "-u", context.getUsername(), "-pw", context.getPassword(), "-f", cassandraYaml,
                            columnFamilyPath);
                    LOGGER.info("Executing command: {}", command);

                    final ProcessBuilder processBuilder = new ProcessBuilder(command);
                    processBuilder.redirectErrorStream(true);
                    Process process = processBuilder.start();

                    BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
                    String line;
                    while ((line = reader.readLine()) != null) {
                        LOGGER.info(line);
                    }

                    int exitCode = process.waitFor();
                    LOGGER.info("Command exit code: {}", exitCode);

                    // Send TASK_ERROR
                    if (exitCode != 0) {
                        final String errMessage = String.format("Error restoring snapshot. Exit code: %s",
                                (exitCode + ""));
                        LOGGER.error(errMessage);
                        sendStatus(driver, Protos.TaskState.TASK_ERROR, errMessage);
                    }

                    LOGGER.info("Done bulk loading! keyspace: {} column family: {}", keyspaceName,
                            columnFamilyName);
                }
                LOGGER.info("Successfully bulk loaded keyspace: {}", keyspaceName);
            }
            // cleanup downloaded snapshot directory recursively.
            Path rootPath = Paths.get(context.getLocalLocation() + File.separator + context.getName());
            if (rootPath.toFile().exists()) {
                Files.walk(rootPath, FileVisitOption.FOLLOW_LINKS).sorted(Comparator.reverseOrder())
                        .map(Path::toFile).forEach(File::delete);
            }
        } else {
            // run nodetool refresh rather than SSTableLoader, as on performance test
            // I/O stream was pretty slow between mesos container processes
            final String localLocation = context.getLocalLocation();
            final List<String> keyspaces = cassandra.getNonSystemKeySpaces();
            for (String keyspace : keyspaces) {
                final String keySpaceDirPath = localLocation + "/" + keyspace;
                File keySpaceDir = new File(keySpaceDirPath);
                File[] cfNames = keySpaceDir
                        .listFiles((current, name) -> new File(current, name).isDirectory());
                for (File cfName : cfNames) {
                    String columnFamily = cfName.getName().substring(0, cfName.getName().indexOf("-"));
                    cassandra.getProbe().loadNewSSTables(keyspace, columnFamily);
                    LOGGER.info("Completed nodetool refresh for keyspace {} & columnfamily {}", keyspace,
                            columnFamily);
                }
            }
        }

        final String message = "Finished restoring snapshot";
        LOGGER.info(message);
        sendStatus(driver, Protos.TaskState.TASK_FINISHED, message);
    } catch (Throwable t) {
        // Send TASK_FAILED
        final String errorMessage = "Failed restoring snapshot. Reason: " + t;
        LOGGER.error(errorMessage, t);
        sendStatus(driver, Protos.TaskState.TASK_FAILED, errorMessage);
    }
}