Example usage for java.nio.file Files newInputStream

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

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Introduction

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

Prototype

public static InputStream newInputStream(Path path, OpenOption... options) throws IOException

Source Link

Document

Opens a file, returning an input stream to read from the file.

Usage

From source file:de.elomagic.carafile.client.CaraFileUtils.java

/**
 * Creates a meta file from the given file.
 *
 * @param path Path of the file//  w ww .ja  v a2s  .  c om
 * @param filename Real name of the file because it can differ from path parameter
 * @return
 * @throws IOException
 * @throws GeneralSecurityException
 */
public static final MetaData createMetaData(final Path path, final String filename)
        throws IOException, GeneralSecurityException {
    if (Files.notExists(path)) {
        throw new FileNotFoundException("File " + path.toString() + " not found!");
    }

    if (Files.isDirectory(path)) {
        throw new IllegalArgumentException("Not a file: " + path.toString());
    }

    MetaData md = new MetaData();
    md.setSize(Files.size(path));
    md.setFilename(filename);
    md.setCreationDate(new Date());
    md.setChunkSize(DEFAULT_PIECE_SIZE);

    try (InputStream in = Files.newInputStream(path, StandardOpenOption.READ);
            BufferedInputStream bin = new BufferedInputStream(in)) {
        MessageDigest mdComplete = MessageDigest.getInstance(MessageDigestAlgorithms.SHA_1);

        byte[] buffer = new byte[DEFAULT_PIECE_SIZE];
        int bytesRead;

        while ((bytesRead = bin.read(buffer)) > 0) {
            mdComplete.update(buffer, 0, bytesRead);

            ChunkData chunk = new ChunkData(
                    DigestUtils.sha1Hex(new ByteArrayInputStream(buffer, 0, bytesRead)));
            md.addChunk(chunk);
        }

        String sha1 = Hex.encodeHexString(mdComplete.digest());
        md.setId(sha1);
    }

    return md;
}

From source file:org.cryptomator.ui.settings.Settings.java

public static synchronized Settings load() {
    if (INSTANCE == null) {
        try {/*  ww  w  . jav a 2  s.  com*/
            Files.createDirectories(SETTINGS_DIR);
            final Path settingsFile = SETTINGS_DIR.resolve(SETTINGS_FILE);
            final InputStream in = Files.newInputStream(settingsFile, StandardOpenOption.READ);
            INSTANCE = JSON_OM.readValue(in, Settings.class);
            return INSTANCE;
        } catch (IOException e) {
            LOG.warn("Failed to load settings, creating new one.");
            INSTANCE = Settings.defaultSettings();
        }
    }
    return INSTANCE;
}

From source file:de.dentrassi.pm.rpm.internal.RpmExtractor.java

@Override
public void extractMetaData(final Context context, final Map<String, String> metadata) throws Exception {
    final Path path = context.getPath();

    try (RpmInputStream in = new RpmInputStream(
            new BufferedInputStream(Files.newInputStream(path, StandardOpenOption.READ)))) {
        final RpmInformation info = makeInformation(in);
        if (info == null) {
            return;
        }//from   w w  w.j a  v  a 2 s  .  c  om

        metadata.put("artifactLabel", "RPM Package");

        metadata.put("name", asString(in.getPayloadHeader().getTag(RpmTag.NAME)));
        metadata.put("version", asString(in.getPayloadHeader().getTag(RpmTag.VERSION)));
        metadata.put("os", asString(in.getPayloadHeader().getTag(RpmTag.OS)));
        metadata.put("arch", asString(in.getPayloadHeader().getTag(RpmTag.ARCH)));

        metadata.put(Constants.KEY_INFO.getKey(), info.toJson());
    }
}

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

public Set<Path> findAllLibraryDirectories() throws IOException, RecognitionException {
    Path steamApps = findSteamApps();
    Set<Path> libraryDirectories = new LinkedHashSet<>();
    libraryDirectories.add(steamApps);// w w w. j a v  a  2  s.c  o  m
    Path directoryDescriptor = steamApps.resolve("libraryfolders.vdf");
    if (Files.exists(directoryDescriptor)) {
        InputStream vdfStream = Files.newInputStream(directoryDescriptor, StandardOpenOption.READ);
        VdfRoot vdfRoot = VdfParser.parse(vdfStream);
        IOUtils.closeQuietly(vdfStream);
        final VdfNode nodeLibrary = Iterables.getFirst(vdfRoot.getChildren(), null);
        if (null != nodeLibrary) {
            for (VdfAttribute va : nodeLibrary.getAttributes()) {
                //System.err.println(va);
                try {
                    Integer.parseInt(va.getName());
                    Path libraryDirectory = Paths.get(va.getValue());
                    libraryDirectories.add(resolveAppsDirectory(libraryDirectory));
                } catch (NumberFormatException nfe) {
                } catch (IllegalStateException ise) {
                    System.err.println(ise);
                }
            }
        }
    }

    return libraryDirectories;
}

From source file:org.eclipse.packagedrone.repo.adapter.rpm.internal.RpmExtractor.java

@Override
public void extractMetaData(final Context context, final Map<String, String> metadata) {
    final Path path = context.getPath();

    try (RpmInputStream in = new RpmInputStream(
            new BufferedInputStream(Files.newInputStream(path, StandardOpenOption.READ)))) {
        final RpmInformation info = makeInformation(in);
        if (info == null) {
            return;
        }//from   ww  w.  ja  va 2s. c  o m

        metadata.put("artifactLabel", "RPM Package");

        metadata.put("name", asString(in.getPayloadHeader().getTag(RpmTag.NAME)));
        metadata.put("version", asString(in.getPayloadHeader().getTag(RpmTag.VERSION)));
        metadata.put("os", asString(in.getPayloadHeader().getTag(RpmTag.OS)));
        metadata.put("arch", asString(in.getPayloadHeader().getTag(RpmTag.ARCH)));

        metadata.put(Constants.KEY_INFO.getKey(), info.toJson());
    } catch (final Exception e) {
        // ignore ... not an RPM file
    }
}

From source file:onl.area51.httpd.util.PathEntity.java

@Override
public InputStream getContent() throws IOException {
    return Files.newInputStream(file, StandardOpenOption.READ);
}

From source file:com.arvato.thoroughly.util.security.impl.DefaultEncryptionKeyRetrievalStrategy.java

private SecretKeySpec getKeySpecFromPath(final Path path) throws IOException, Exception {
    final InputStream stream = Files.newInputStream(path, new OpenOption[0]);
    try {/*from w w w  .  j  av  a2s .com*/
        final SecretKeySpec localSecretKeySpec = convertStreamToKey(stream);
        return localSecretKeySpec;
    } catch (final Throwable localThrowable4) {
        LOGGER.error(localThrowable4.getMessage());
    } finally {
        if (stream != null) {
            try {
                stream.close();
            } catch (final IOException e) {
                LOGGER.error(e.getMessage(), e);
            }
        }
    }
    return null;
}

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

public synchronized VdfRoot getRootNode() throws IOException, RecognitionException {
    if (null == rootNode) {
        InputStream inputStream = Files.newInputStream(path, StandardOpenOption.READ);
        try {/*from   w  w w.  j  a  va 2 s .  co  m*/
            rootNode = VdfParser.parse(inputStream);
        } finally {
            IOUtils.closeQuietly(inputStream);
        }
    }
    return rootNode;
}

From source file:org.cloudfoundry.dependency.resource.InAction.java

private String getSha256(Path artifact) throws IOException {
    try (InputStream in = Files.newInputStream(artifact, StandardOpenOption.READ)) {
        return DigestUtils.sha256Hex(in);
    }//from w  w  w  .j  a v  a 2 s  . c o m
}

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

@Override
public InputStream inputStream() throws UncheckedIOException {
    try {//from  w w  w  .j  a va  2s  . com
        return Files.newInputStream(file, READ);

    } catch (IOException ex) {
        throw new UncheckedIOException(ex);
    }
}