Example usage for java.nio.file Files list

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

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Introduction

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

Prototype

public static Stream<Path> list(Path dir) throws IOException

Source Link

Document

Return a lazily populated Stream , the elements of which are the entries in the directory.

Usage

From source file:org.opennms.netmgt.dao.support.FilesystemResourceStorageDao.java

private boolean exists(Path root, int depth) {
    if (!root.toFile().isDirectory()) {
        return false;
    }/*  w w  w  .j  a va2s. c om*/

    try (Stream<Path> stream = Files.list(root)) {
        if (depth == 0) {
            return stream.anyMatch(isRrdFile);
        } else {
            return stream.anyMatch(p -> exists(p, depth - 1));
        }
    } catch (IOException e) {
        LOG.error("Failed to list {}. Marking path as non-existent.", root, e);
        return false;
    }
}

From source file:io.pravega.segmentstore.storage.impl.extendeds3.S3FileSystemImpl.java

@Override
public ListObjectsResult listObjects(String bucketName, String prefix) {
    ListObjectsResult result = new ListObjectsResult();
    ArrayList<S3Object> list = new ArrayList<>();
    Path path = Paths.get(this.baseDir, bucketName, prefix);
    try {//w w w  .j a va2  s. com
        if (Files.exists(path)) {
            if (Files.isDirectory(path)) {
                Files.list(path).forEach((file) -> {
                    addFileAsObjectToList(file, list, bucketName);
                });
            } else {
                addFileAsObjectToList(path, list, bucketName);
            }
        }
    } catch (IOException e) {
        throw new S3Exception("NoSuchKey", HttpStatus.SC_NOT_FOUND, "NoSuchKey", "");
    }
    result.setObjects(list);
    return result;
}

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

private JsonObject getJsonObjForFile(Path root, boolean checkChildren) {
    JsonObject rootObj = new JsonObject();
    if (null != root.getFileName()) {
        Path fileName = root.getFileName();
        if (null != fileName) {
            rootObj.addProperty("text", fileName.toString());
        }/*  w  w  w .  j  av  a  2s  .  c o  m*/
    } else {
        rootObj.addProperty("text", root.toString());
    }
    rootObj.addProperty("id", root.toAbsolutePath().toString());
    if (Files.isDirectory(root) && checkChildren) {
        rootObj.addProperty("type", "folder");
        try {
            if (Files.list(root).count() > 0) {
                rootObj.addProperty("children", Boolean.TRUE);
            } else {
                rootObj.addProperty("children", Boolean.FALSE);
            }
        } catch (IOException e) {
            logger.debug("Error while fetching children of " + root.toString(), e);
            rootObj.addProperty("error", e.toString());
        }
    } else if (Files.isRegularFile(root) && checkChildren) {
        rootObj.addProperty("type", "file");
        rootObj.addProperty("children", Boolean.FALSE);
    }
    return rootObj;
}

From source file:org.opennms.netmgt.dao.support.FilesystemResourceStorageDao.java

private boolean existsWithin(Path root, int depth) {
    if (depth < 0 || !root.toFile().isDirectory()) {
        return false;
    }//from  w w w .j  a va  2 s .  co m

    try (Stream<Path> stream = Files.list(root)) {
        return stream.anyMatch(p -> (isRrdFile.test(p) || existsWithin(p, depth - 1)));
    } catch (IOException e) {
        LOG.error("Failed to list {}. Marking path as non-existent.", root, e);
        return false;
    }
}

From source file:com.qwazr.server.configuration.ServerConfiguration.java

/**
 * List the configuration files// w  ww .  ja  v  a 2 s. c o  m
 *
 * @return a list with the found configuration files
 * @throws IOException if any I/O error occurs
 */
public Collection<Path> getEtcFiles() throws IOException {
    if (etcDirectories == null)
        return Collections.emptyList();
    final Set<Path> etcPaths = new LinkedHashSet<>();
    for (final Path etcDirectory : etcDirectories) {
        if (Files.exists(etcDirectory) && Files.isDirectory(etcDirectory)) {
            try (final Stream<Path> stream = Files.list(etcDirectory)) {
                stream.filter(etcFileFilter).forEach(etcPaths::add);
            }
        }
    }
    return etcPaths;
}

From source file:org.darkware.wpman.config.ReloadableWordpressConfig.java

/**
 * Load all available plugin configuration profile fragments under the given directory. No recursion is done.
 * All profile fragments must end in {@code .yml}.
 *
 * @param plugins The {@link PluginListConfig} to override with the loaded fragments.
 * @param dir The {@link Path} of the directory to scan.
 * @throws IOException If there is an error while listing the directory contents
 *///from ww  w.  j  a  v a  2s . c  o m
protected void loadPlugins(final PluginListConfig plugins, final Path dir) throws IOException {
    if (!Files.exists(dir))
        return;
    if (!Files.isDirectory(dir)) {
        WPManager.log.warn("Cannot load plugin overrides: {} is not a directory.", dir);
        return;
    }
    if (!Files.isReadable(dir)) {
        WPManager.log.warn("Cannot load plugin overrides: {} is not readable.", dir);
        return;
    }

    Files.list(dir).filter(f -> Files.isRegularFile(f)).filter(f -> f.toString().endsWith(".yml"))
            .forEach(f -> this.loadPlugin(plugins, f));
}

From source file:org.eclipse.cdt.arduino.core.internal.board.ArduinoManager.java

public void convertLibrariesDir() throws CoreException {
    Path librariesDir = ArduinoPreferences.getArduinoHome().resolve("libraries"); //$NON-NLS-1$
    if (!Files.isDirectory(librariesDir)) {
        return;/* w  ww .  j  a  v  a 2  s.  c om*/
    }

    try {
        Path tmpDir = Files.createTempDirectory("alib"); //$NON-NLS-1$
        Path tmpLibDir = tmpDir.resolve("libraries"); //$NON-NLS-1$
        Files.move(librariesDir, tmpLibDir);
        Files.list(tmpLibDir).forEach(path -> {
            try {
                Optional<Path> latest = Files.list(path)
                        .reduce((path1, path2) -> compareVersions(path1.getFileName().toString(),
                                path2.getFileName().toString()) > 0 ? path1 : path2);
                if (latest.isPresent()) {
                    Files.move(latest.get(), librariesDir.resolve(path.getFileName()));
                }
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        });
        recursiveDelete(tmpDir);
    } catch (RuntimeException | IOException e) {
        throw Activator.coreException(e);
    }

}

From source file:com.twosigma.beakerx.kernel.magic.command.MavenJarResolver.java

private Map<String, Path> jarsFromRepo() {
    try {//www  . j  av a2 s. c  o  m
        List<Path> collect = Files.list(Paths.get(pathToMavenRepo)).collect(Collectors.toList());
        return collect.stream().collect(Collectors.toMap(x -> x.getFileName().toString(), x -> x));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:api.wiki.WikiGenerator.java

private List<String> versionsWithDocumentation() throws IOException {
    return Files.list(docsDirectory()).map(Path::toFile).filter(File::isDirectory).map(File::getName)
            .filter(name -> !name.startsWith("_")).collect(Collectors.toList());
}

From source file:org.cirdles.webServices.calamari.PrawnFileHandlerService.java

public Path generateReportsZip(String myFileName, InputStream prawnFile, boolean useSBM, boolean userLinFits,
        String firstLetterRM) throws IOException, JAXBException, SAXException {

    String fileName = myFileName;
    if (myFileName == null) {
        fileName = DEFAULT_PRAWNFILE_NAME;
    }//from   ww  w. j  ava 2 s.c o  m

    Path uploadDirectory = Files.createTempDirectory("upload");
    Path prawnFilePathZip = uploadDirectory.resolve("prawn-file.zip");

    Files.copy(prawnFile, prawnFilePathZip);

    //file path string to extracted xml
    String extract = extract(prawnFilePathZip.toFile(), uploadDirectory.toFile());

    Path calamarirReportsFolderAlias = Files.createTempDirectory("reports-destination");
    File reportsDestinationFile = calamarirReportsFolderAlias.toFile();

    reportsEngine.setFolderToWriteCalamariReports(reportsDestinationFile);
    fileName = FilenameUtils.removeExtension(fileName);

    // this gives reportengine the name of the Prawnfile for use in report names
    prawnFileHandler.initReportsEngineWithCurrentPrawnFileName(fileName);
    prawnFileHandler.writeReportsFromPrawnFile(extract, useSBM, userLinFits, firstLetterRM);

    Files.delete(prawnFilePathZip);

    Path reportsFolder = Paths.get(reportsEngine.getFolderToWriteCalamariReportsPath()).getParent()
            .toAbsolutePath();

    Path reports = Files.list(reportsFolder).findFirst().orElseThrow(() -> new IllegalStateException());

    Path reportsZip = zip(reports);
    recursiveDelete(reports);

    return reportsZip;
}