Example usage for java.nio.channels Channels newChannel

List of usage examples for java.nio.channels Channels newChannel

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Introduction

In this page you can find the example usage for java.nio.channels Channels newChannel.

Prototype

public static WritableByteChannel newChannel(OutputStream out)

Source Link

Document

Constructs a channel that writes bytes to the given stream.

Usage

From source file:org.wikidata.wdtk.util.DirectoryManagerImpl.java

@Override
public long createFile(String fileName, InputStream inputStream) throws IOException {
    long fileSize;
    Path filePath = this.directory.resolve(fileName);
    try (ReadableByteChannel readableByteChannel = Channels.newChannel(inputStream);
            FileChannel fc = FileChannel.open(filePath, StandardOpenOption.WRITE,
                    StandardOpenOption.CREATE_NEW)) {
        fileSize = fc.transferFrom(readableByteChannel, 0, Long.MAX_VALUE);
    }/*  w ww. j  a  v a 2s . co  m*/
    return fileSize;
}

From source file:com.atilika.kuromoji.trie.DoubleArrayTrie.java

/**
 * Load Stored data/*  www .  jav  a 2s .com*/
 *
 * @param input  input stream to read the double array trie from
 * @return double array trie, not null
 * @throws IOException if an IO error occured during reading the double array trie
 */
public static DoubleArrayTrie read(InputStream input) throws IOException {
    DoubleArrayTrie trie = new DoubleArrayTrie();
    DataInputStream dis = new DataInputStream(new BufferedInputStream(input));

    trie.compact = dis.readBoolean();
    int baseCheckSize = dis.readInt(); // Read size of baseArr and checkArr
    int tailSize = dis.readInt(); // Read size of tailArr
    ReadableByteChannel channel = Channels.newChannel(dis);

    ByteBuffer tmpBaseBuffer = ByteBuffer.allocate(baseCheckSize * 4);
    channel.read(tmpBaseBuffer);
    tmpBaseBuffer.rewind();
    trie.baseBuffer = tmpBaseBuffer.asIntBuffer();

    ByteBuffer tmpCheckBuffer = ByteBuffer.allocate(baseCheckSize * 4);
    channel.read(tmpCheckBuffer);
    tmpCheckBuffer.rewind();
    trie.checkBuffer = tmpCheckBuffer.asIntBuffer();

    ByteBuffer tmpTailBuffer = ByteBuffer.allocate(tailSize * 2);
    channel.read(tmpTailBuffer);
    tmpTailBuffer.rewind();
    trie.tailBuffer = tmpTailBuffer.asCharBuffer();

    input.close();
    return trie;
}

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

@Synchronized
@Override//from  w  w w  .j  a v a 2 s.  c  o  m
public void putObject(String bucketName, String key, Range range, Object content) {

    Path path = Paths.get(this.baseDir, bucketName, key);
    try (FileChannel channel = FileChannel.open(path, StandardOpenOption.WRITE)) {

        long startOffset = range.getFirst();
        long length = range.getLast() + 1 - range.getFirst();
        do {
            long bytesTransferred = channel.transferFrom(Channels.newChannel((InputStream) content),
                    range.getFirst(), range.getLast() + 1 - range.getFirst());
            length -= bytesTransferred;
            startOffset += bytesTransferred;
        } while (length > 0);

        AclSize aclKey = aclMap.get(key);
        aclMap.put(key, aclKey.withSize(range.getLast() + 1));
    } catch (IOException e) {
        throw new S3Exception("NoObject", 404, "NoSuchKey", key);
    }
}

From source file:pl.allegro.tech.hermes.consumers.consumer.sender.http.ByteBufferEntity.java

@Override
public void writeTo(OutputStream outstream) throws IOException {
    Args.notNull(outstream, "Output stream");
    WritableByteChannel channel = Channels.newChannel(outstream);
    channel.write(buffer);/*  www  .j  av  a 2  s . c  o m*/
    outstream.flush();
}

From source file:org.eclipse.jgit.lfs.server.fs.ObjectDownloadListener.java

/**
 * @param repository/*from ww  w. j  a v a  2s .c  o m*/
 *            the repository storing large objects
 * @param context
 *            the servlet asynchronous context
 * @param response
 *            the servlet response
 * @param id
 *            id of the object to be downloaded
 * @throws IOException
 */
public ObjectDownloadListener(FileLfsRepository repository, AsyncContext context, HttpServletResponse response,
        AnyLongObjectId id) throws IOException {
    this.context = context;
    this.response = response;
    this.in = repository.getReadChannel(id);
    this.out = response.getOutputStream();
    this.outChannel = Channels.newChannel(out);

    response.addHeader(HttpSupport.HDR_CONTENT_LENGTH, String.valueOf(repository.getSize(id)));
    response.setContentType(Constants.HDR_APPLICATION_OCTET_STREAM);
}

From source file:org.cryptomator.frontend.webdav.servlet.DavFolder.java

private void addMemberFile(DavFile memberFile, InputStream inputStream) {
    try (ReadableByteChannel src = Channels.newChannel(inputStream); //
            WritableByteChannel dst = Files.newByteChannel(memberFile.path, StandardOpenOption.CREATE,
                    StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE)) {
        ByteStreams.copy(src, dst);//from   ww  w  .java  2 s.  c  om
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

From source file:net.technicpack.launchercore.mirror.download.Download.java

@Override
@SuppressWarnings("unused")
public void run() {
    ReadableByteChannel rbc = null;
    FileOutputStream fos = null;//  w w  w. j a  v  a  2 s .c o m
    try {
        HttpURLConnection conn = Utils.openHttpConnection(url);
        int response = conn.getResponseCode();
        int responseFamily = response / 100;

        if (responseFamily == 3) {
            String redirUrlText = conn.getHeaderField("Location");
            if (redirUrlText != null && !redirUrlText.isEmpty()) {
                URL redirectUrl = null;
                try {
                    redirectUrl = new URL(redirUrlText);
                } catch (MalformedURLException ex) {
                    throw new DownloadException("Invalid Redirect URL: " + url, ex);
                }

                conn = Utils.openHttpConnection(redirectUrl);
                response = conn.getResponseCode();
                responseFamily = response / 100;
            }
        }

        if (responseFamily != 2) {
            throw new DownloadException("The server issued a " + response + " response code.");
        }

        InputStream in = getConnectionInputStream(conn);

        size = conn.getContentLength();
        outFile = new File(outPath);
        outFile.delete();

        rbc = Channels.newChannel(in);
        fos = new FileOutputStream(outFile);

        stateChanged();

        Thread progress = new MonitorThread(Thread.currentThread(), rbc);
        progress.start();

        fos.getChannel().transferFrom(rbc, 0, size > 0 ? size : Integer.MAX_VALUE);
        in.close();
        rbc.close();
        progress.interrupt();

        synchronized (timeoutLock) {
            if (isTimedOut) {
                return;
            }
        }

        if (size > 0) {
            if (size == outFile.length()) {
                result = Result.SUCCESS;
            }
        } else {
            result = Result.SUCCESS;
        }
    } catch (ClosedByInterruptException ex) {
        result = Result.FAILURE;
        return;
    } catch (PermissionDeniedException e) {
        exception = e;
        result = Result.PERMISSION_DENIED;
    } catch (DownloadException e) {
        exception = e;
        result = Result.FAILURE;
    } catch (Exception e) {
        exception = e;
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(fos);
        IOUtils.closeQuietly(rbc);
    }
}

From source file:org.onebusaway.webapp.actions.admin.bundles.SyncBundleAction.java

public String syncBundle() {

    String syncStatus = "Syncing in progress";
    String apiHost = "http://admin.staging.obast.org:9999/api/bundle/latest";
    JsonObject latestBundle = null;//  w w w . ja v a 2  s.c o  m
    try {
        latestBundle = getJsonData(apiHost).getAsJsonObject();
    } catch (Exception e) {
        _log.error("Failed to retrieve name of the latest deployed bundle");
    }
    String datasetName = latestBundle.get("dataset").getAsString();
    String buildName = latestBundle.get("name").getAsString();
    String bundleId = latestBundle.get("id").getAsString();
    String bundleFileName = buildName + ".tar.gz";
    String tmpDir = new NYCFileUtils().createTmpDirectory();
    String bundleDir = "/var/lib/oba/bundles";
    String deployDir = "/var/lib/oba/bundles/active";
    String bundleBuildDir = "/var/lib/oba/bundles/builder";

    try {
        String bundleSourceString = "http://admin.staging.obast.org:9999/api/bundle/archive/get-by-name/"
                + datasetName + "/" + buildName + "/" + bundleFileName;
        URL bundleSource = new URL(bundleSourceString);
        ReadableByteChannel rbc = Channels.newChannel(bundleSource.openStream());
        FileOutputStream fos = new FileOutputStream(tmpDir + File.separator + bundleFileName);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
    } catch (MalformedURLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    try {
        unzipBundle(tmpDir, bundleFileName);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // Copy to extracted files /var/lib/oba/bundles/active
    try {
        //FileUtils.copyDirectory(new File(tmpDir + File.separator + "untarredBundle" + File.separator +  buildName), new File(deployDir));
        FileUtils.copyDirectory(new File(tmpDir + File.separator + "untarredBundle"), new File(deployDir));
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // Copy downloaded .tar.gz bundle to bundle builds dir
    String buildDest = bundleBuildDir + File.separator + datasetName + File.separator + "builds"
            + File.separator + buildName + File.separator + bundleFileName;
    try {
        FileUtils.copyFile(new File(tmpDir + File.separator + bundleFileName), new File(buildDest));
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // Copy inputs and outputs dirs
    File srcInputDir = new File(tmpDir + File.separator + "untarredBundle" + File.separator + buildName
            + File.separator + "inputs");
    File srcOutputDir = new File(tmpDir + File.separator + "untarredBundle" + File.separator + buildName
            + File.separator + "outputs");
    String destBuildsDir = bundleBuildDir + File.separator + datasetName + File.separator + "builds"
            + File.separator + buildName;
    try {
        FileUtils.copyDirectory(srcInputDir, new File(destBuildsDir + File.separator + "inputs"));
        FileUtils.copyDirectory(srcOutputDir, new File(destBuildsDir + File.separator + "outputs"));
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // Copy gtfs and aux files to aux_latest and gtfs_latest
    String gtfsFileDest = bundleBuildDir + File.separator + datasetName + File.separator + "gtfs_latest";
    String auxFileDest = bundleBuildDir + File.separator + datasetName + File.separator + "aux_latest";
    File[] inputFiles = srcInputDir.listFiles();
    for (File inputFile : inputFiles) {
        try {
            String fileName = inputFile.getName();
            int idx = fileName.indexOf("_");
            if (idx > 0) { // Skip over config dir
                String agencyNum = fileName.substring(0, idx);
                String zipFileName = fileName.substring(idx + 1);
                if (agencyNum.equals("29")) { // For CT aux files
                    String fileDest = auxFileDest + File.separator + agencyNum + File.separator + zipFileName;
                    FileUtils.copyFile(inputFile, new File(fileDest));
                } else {
                    String fileDest = gtfsFileDest + File.separator + agencyNum + File.separator + zipFileName;
                    FileUtils.copyFile(inputFile, new File(fileDest));
                }
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    syncStatus = "Complete";
    return "syncStatus";
}

From source file:com.github.neoio.net.message.staging.memory.MemoryMessageStaging.java

@Override
public int writeTempReadBytes(ByteBuffer buffer) throws NetIOException {
    return NIOUtils.writeToChannel(Channels.newChannel(readTempStageCount), buffer);
}

From source file:com.nike.cerberus.operation.gateway.PublishLambdaOperation.java

private File downloadArtifact(final URL artifactUrl) {
    final File tempDir = Files.createTempDir();
    final String filePath = tempDir.getPath() + File.pathSeparator + "lambda.artifact";
    logger.debug("Downloading artifact to {}", tempDir.getAbsolutePath());

    try {/*from ww w .  j  a va2s  .  c om*/
        ReadableByteChannel rbc = Channels.newChannel(artifactUrl.openStream());
        FileOutputStream fos = new FileOutputStream(filePath);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
    } catch (IOException e) {
        logger.error("Failed to download the lambda artifact!", e);
        throw new IllegalStateException("Failed to download the lambda artifact.", e);
    }

    return new File(filePath);
}