Example usage for java.nio.file Files list

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.wso2.carbon.uuf.internal.io.ArtifactComponentReference.java

@Override
public Stream<FragmentReference> getFragments(Set<String> supportedExtensions) {
    Path fragments = componentDirectory.resolve(DIR_NAME_FRAGMENTS);
    if (!Files.exists(fragments)) {
        return Stream.<FragmentReference>empty();
    }/*  w ww  .  j a  va 2  s.  c om*/
    try {
        return Files.list(fragments).filter(Files::isDirectory)
                .map(path -> new ArtifactFragmentReference(path, this, supportedExtensions));
    } catch (IOException e) {
        throw new FileOperationException("An error occurred while listing fragments in '" + fragments + "'.",
                e);
    }
}

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From source file:org.apache.storm.localizer.LocalizedResource.java

static Collection<String> getLocalizedUsers(Path localBaseDir) throws IOException {
    Path userCacheDir = getUserCacheDir(localBaseDir);
    if (!Files.exists(userCacheDir)) {
        return Collections.emptyList();
    }/*from  w w  w.ja  v a 2  s.  com*/
    return Files.list(userCacheDir).map((p) -> p.getFileName().toString()).collect(Collectors.toList());
}

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From source file:org.trellisldp.file.FileUtils.java

/**
 * Fetch a stream of files in the provided directory path.
 * @param path the directory path// w w  w . j a  va2 s  . c  o  m
 * @return a stream of filenames
 */
public static Stream<Path> uncheckedList(final Path path) {
    try {
        return Files.list(path);
    } catch (final IOException ex) {
        throw new UncheckedIOException("Error fetching file list", ex);
    }
}

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From source file:org.zanata.sync.jobs.cache.RepoCache.java

default Optional<Path> getCachedRepo(Path rootCacheDir, String url) {
    Path expected = cacheDirForRepo(rootCacheDir, url);
    boolean exists = Files.exists(expected);
    if (exists && Files.isDirectory(expected)) {
        try (Stream<Path> subPaths = Files.list(expected)) {
            if (subPaths.count() > 0) {
                return Optional.of(expected);
            }//  w  w  w . ja v a 2s .com
        } catch (IOException e) {
            log.warn("error reading cached repo folder: " + expected, e);
            return Optional.empty();
        }
    }
    return Optional.empty();
}

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From source file:org.talend.dataprep.folder.store.file.FileSystemFolderRepository.java

@Override
public Iterable<Folder> children(String parentId) {
    final FolderPath parentDpPath = fromId(parentId);
    try {// w  w w  . j a  va  2s  . c o m
        Path folderPath;
        if (parentDpPath != null) {
            folderPath = pathsConverter.toPath(parentDpPath);
        } else {
            folderPath = pathsConverter.getRootFolder();
        }
        List<Folder> children;
        if (Files.notExists(folderPath)) {
            children = emptyList();
        } else {
            try (Stream<Path> childrenStream = Files.list(folderPath)) {
                children = childrenStream //
                        .map(p -> toFolderIfDirectory(p, security.getUserId())) //
                        .filter(Objects::nonNull) //
                        .collect(toList());
            }
        }
        return children;
    } catch (IOException e) {
        throw new TDPException(UNABLE_TO_LIST_FOLDER_CHILDREN, e,
                build().put("path", parentDpPath == null ? null : parentDpPath.serializeAsString()));
    }
}

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From source file:it.greenvulcano.configuration.BaseConfigurationManager.java

@Override
public Set<File> getHistory() throws IOException {
    Path history = getHistoryPath();
    if (Files.exists(history)) {

        Path currentConfigArchive = getConfigurationPath(getCurrentConfigurationName());
        Predicate<Path> currentConfig = p -> {
            try {
                return Files.isSameFile(p, currentConfigArchive);
            } catch (IOException e) {
                return false;
            }/*from  www  . ja va 2s  .  c  o  m*/
        };

        return Files.list(history).filter(currentConfig.negate()).map(Path::toFile).collect(Collectors.toSet());
    }

    return new LinkedHashSet<>();
}

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From source file:edu.umd.umiacs.clip.tools.io.AllFiles.java

public static Stream<File> list(Path dir) {
    try {//  w w  w .  jav  a2s  .  co m
        return Files.list(dir).map(Path::toFile);
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

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From source file:ubicrypt.core.S3DownloadIT.java

@Test
public void downloadFiles() throws Exception {
    if (StringUtils.isEmpty(System.getenv("aws.accessKey"))) {
        return;//from   ww  w .j  ava 2  s . c o  m
    }
    CountDownLatch cd = new CountDownLatch(1);
    Subscription sub = appEvents.subscribe(event -> {
        if (event instanceof SynchDoneEvent) {
            cd.countDown();
        }
    });
    assertThat(cd.await(20, TimeUnit.SECONDS)).isTrue();
    sub.unsubscribe();
    assertThat(Files.list(TestUtils.tmp2)).hasSize(nfiles);
    S3Provider provider = (S3Provider) providerLifeCycle.currentlyActiveProviders().get(0).getProvider();
    provider.getClient().listObjects("test-gfrison").getObjectSummaries().stream().forEach(
            s3ObjectSummary -> provider.getClient().deleteObject("test-gfrison", s3ObjectSummary.getKey()));
}

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From source file:org.xlrnet.tibaija.tools.fontgen.FontgenApplication.java

@NotNull
private Font importFont(String source, String fontIdentifier) throws IOException {
    Path sourcePath = Paths.get(source);

    Pattern filePattern = Pattern.compile("[0-9A-F]{2}h_" + fontIdentifier + "[a-zA-Z0-9]*.gif");

    List<Path> fileList = Files.list(sourcePath)
            .filter(p -> filePattern.matcher(p.getFileName().toString()).matches())
            .collect(Collectors.toList());

    Font font = new Font();
    List<Symbol> symbols = new ArrayList<>();

    for (Path path : fileList) {
        try {/* w  ww.j  a v  a2s .c  o  m*/
            Symbol symbol = importFile(path, font, fontIdentifier);

            if (symbol == null)
                continue;

            String filename = path.getFileName().toString();
            String hexValue = StringUtils.substring(filename, 0, 2);
            String internalIdentifier = StringUtils.substringBetween(filename, "_" + fontIdentifier, ".gif");

            symbol.setHexValue(hexValue);
            symbol.setInternalIdentifier(internalIdentifier);

            symbols.add(symbol);
        } catch (ImageReadException e) {
            LOGGER.error("Reading image {} failed", path.toAbsolutePath(), e);
        }
    }

    Collections.sort(symbols);
    font.setSymbols(symbols);

    return font;
}

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From source file:com.github.horrorho.inflatabledonkey.chunk.store.disk.DiskChunkStoreTest.java

@Ignore
@Test//from   www.j a  va2  s . c o  m
@Parameters
public void test(byte[] data) throws IOException {
    Supplier<Digest> digests = SHA1Digest::new;
    DiskChunkStore store = new DiskChunkStore(digests, ChunkDigests::test, CACHE, TEMP);

    byte[] checksum = digest(digests, data);
    Optional<OutputStream> chunkOutputStream = store.outputStream(checksum);
    assertTrue("OutputStream present", chunkOutputStream.isPresent());

    try (OutputStream os = chunkOutputStream.get()) {
        os.write(data);
    }
    Optional<Chunk> chunkData = store.chunk(checksum);
    assertTrue("Chunk present", chunkData.isPresent());

    Chunk chunk = chunkData.get();
    assertArrayEquals("checksum match", checksum, chunk.checksum());

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try (InputStream is = chunk.inputStream().orElseThrow(() -> new IllegalStateException("chunk deleted"))) {
        IOUtils.copy(is, baos);
    }
    assertArrayEquals("data match", data, baos.toByteArray());

    Optional<OutputStream> duplicateOutputStream = store.outputStream(checksum);
    assertFalse("duplicate OutputStream not present", duplicateOutputStream.isPresent());

    boolean isDeleted = store.delete(checksum);
    assertTrue("was deleted", isDeleted);

    Optional<Chunk> deleted = store.chunk(checksum);
    assertFalse(deleted.isPresent());

    assertFalse("temp folder is empty", Files.list(TEMP).findFirst().isPresent());
}

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