Example usage for com.google.common.io ByteStreams copy

Introduction

In this page you can find the example usage for com.google.common.io ByteStreams copy.

Prototype

public static long copy(ReadableByteChannel from, WritableByteChannel to) throws IOException

Source Link

Document

Copies all bytes from the readable channel to the writable channel.

Usage

From source file:controllers.UploadController.java

/**
 * //from w  ww  . j  av  a  2s  . co  m
 * This upload method expects a file and simply displays the file in the
 * multipart upload again to the user (in the correct mime encoding).
 * 
 * @param context
 * @return
 * @throws Exception
 */
public Result uploadFinish(Context context) throws Exception {

    // we are using a renderable inner class to stream the input again to
    // the user
    Renderable renderable = new Renderable() {

        @Override
        public void render(Context context, Result result) {

            try {
                // make sure the context really is a multipart context...
                if (context.isMultipart()) {

                    // This is the iterator we can use to iterate over the
                    // contents
                    // of the request.
                    FileItemIterator fileItemIterator = context.getFileItemIterator();

                    while (fileItemIterator.hasNext()) {

                        FileItemStream item = fileItemIterator.next();

                        String name = item.getFieldName();
                        InputStream stream = item.openStream();

                        String contentType = item.getContentType();

                        if (contentType != null) {
                            result.contentType(contentType);
                        } else {
                            contentType = mimeTypes.getMimeType(name);
                        }

                        ResponseStreams responseStreams = context.finalizeHeaders(result);

                        if (item.isFormField()) {
                            System.out.println("Form field " + name + " with value " + Streams.asString(stream)
                                    + " detected.");
                        } else {
                            System.out.println(
                                    "File field " + name + " with file name " + item.getName() + " detected.");
                            // Process the input stream

                            ByteStreams.copy(stream, responseStreams.getOutputStream());

                        }
                    }

                }

            } catch (IOException | FileUploadException exception) {

                throw new InternalServerErrorException(exception);

            }

        }
    };

    return new Result(200).render(renderable);

}

From source file:org.onosproject.yang.impl.YangLiveCompilerManager.java

private void extractYangFile(File dir, InputStream stream) throws IOException {
    ByteStreams.copy(stream, new FileOutputStream(new File(dir, "model.yang")));
}

From source file:org.ow2.proactive_grid_cloud_portal.dataspace.util.VFSZipper.java

public static void zip(FileObject file, OutputStream out) throws IOException {
    Closer closer = Closer.create();//ww w  .  j av a 2 s.  com
    try {
        closer.register(out);
        InputStream in = file.getContent().getInputStream();
        closer.register(in);
        ByteStreams.copy(in, out);
    } catch (IOException ioe) {
        throw closer.rethrow(ioe);
    } finally {
        closer.close();
    }
}

From source file:co.cask.tigon.flow.DeployClient.java

private static void expandJar(File jarPath, File unpackDir) throws Exception {
    JarFile jar = new JarFile(jarPath);
    Enumeration enumEntries = jar.entries();
    while (enumEntries.hasMoreElements()) {
        JarEntry file = (JarEntry) enumEntries.nextElement();
        File f = new File(unpackDir + File.separator + file.getName());
        if (file.isDirectory()) {
            f.mkdirs();/* w ww  .  j a v a2s . c  o  m*/
            continue;
        } else {
            f.getParentFile().mkdirs();
        }
        InputStream is = jar.getInputStream(file);
        try {
            ByteStreams.copy(is, Files.newOutputStreamSupplier(f));
        } finally {
            Closeables.closeQuietly(is);
        }
    }
}

From source file:alluxio.proxy.StreamsRestServiceHandler.java

/**
 * @summary writes to a stream/* w  w w.ja v  a  2 s. c o m*/
 * @param id the stream id
 * @param is the input stream
 * @return the response object
 */
@POST
@Path(ID_PARAM + WRITE)
@ReturnType("java.lang.Long")
@Consumes(MediaType.APPLICATION_OCTET_STREAM)
public Response write(@PathParam("id") final Integer id, final InputStream is) {
    return RestUtils.call(new RestUtils.RestCallable<Long>() {
        @Override
        public Long call() throws Exception {
            FileOutStream os = mStreamCache.getOutStream(id);
            if (os != null) {
                return ByteStreams.copy(is, os);
            }
            throw new IllegalArgumentException("stream does not exist");
        }
    });
}

From source file:org.gaul.s3proxy.NullBlobStore.java

@Override
public String putBlob(String containerName, Blob blob, PutOptions options) {
    long length;//from  w w  w  .  ja va2  s  . co  m
    try (InputStream is = blob.getPayload().openStream()) {
        length = ByteStreams.copy(is, ByteStreams.nullOutputStream());
    } catch (IOException ioe) {
        throw new RuntimeException(ioe);
    }

    byte[] array = Longs.toByteArray(length);
    ByteSourcePayload payload = new ByteSourcePayload(ByteSource.wrap(array));
    payload.setContentMetadata(blob.getPayload().getContentMetadata());
    payload.getContentMetadata().setContentLength((long) array.length);
    payload.getContentMetadata().setContentMD5((HashCode) null);
    blob.setPayload(payload);

    return super.putBlob(containerName, blob, options);
}

From source file:com.github.dirkraft.jash.ShExecutableJarBundler.java

void concatJashAndJar() throws IOException {
    Preconditions.checkState(!_targetBinary.exists(), "Expected nothing to be here: %s",
            _targetBinary.getAbsolutePath());

    Files.copy(_renderedScriptFile.toPath(), _targetBinary.toPath());
    try (FileInputStream jarInputStream = new FileInputStream(jarFile);
            FileOutputStream appendJarStream = new FileOutputStream(_targetBinary, true)) {
        ByteStreams.copy(jarInputStream, appendJarStream);
        appendJarStream.flush();/*from  w w w .j a va 2  s .c o  m*/
    }

    JashIO.outf("Concatenated jash script and jar contents into %s%n", _targetBinary);
}

From source file:google.registry.tools.EscrowDepositEncryptor.java

/** Creates a {@code .ryde} and {@code .sig} file, provided an XML deposit file. */
void encrypt(String tld, Path xmlFile, Path outdir) throws IOException, PGPException, XmlException {
    try (InputStream xmlFileInput = Files.newInputStream(xmlFile);
            BufferedInputStream xmlInput = new BufferedInputStream(xmlFileInput, PEEK_BUFFER_SIZE)) {
        DateTime watermark = RdeUtil.peekWatermark(xmlInput);
        String name = RdeNamingUtils.makeRydeFilename(tld, watermark, FULL, 1, 0);
        Path rydePath = outdir.resolve(name + ".ryde");
        Path sigPath = outdir.resolve(name + ".sig");
        Path pubPath = outdir.resolve(tld + ".pub");
        PGPKeyPair signingKey = rdeSigningKey;
        try (OutputStream rydeOutput = Files.newOutputStream(rydePath);
                RydePgpSigningOutputStream signLayer = pgpSigningFactory.create(rydeOutput, signingKey)) {
            try (RydePgpEncryptionOutputStream encryptLayer = pgpEncryptionFactory.create(signLayer,
                    rdeReceiverKey);/*  w ww. j  av  a  2  s. c o m*/
                    RydePgpCompressionOutputStream compressLayer = pgpCompressionFactory.create(encryptLayer);
                    RydePgpFileOutputStream fileLayer = pgpFileFactory.create(compressLayer, watermark,
                            name + ".tar");
                    RydeTarOutputStream tarLayer = tarFactory.create(fileLayer, Files.size(xmlFile), watermark,
                            name + ".xml")) {
                ByteStreams.copy(xmlInput, tarLayer);
            }
            Files.write(sigPath, signLayer.getSignature());
            try (OutputStream pubOutput = Files.newOutputStream(pubPath);
                    ArmoredOutputStream ascOutput = new ArmoredOutputStream(pubOutput)) {
                signingKey.getPublicKey().encode(ascOutput);
            }
        }
    }
}

From source file:de.dentrassi.pm.storage.service.jpa.blob.DatabaseBlobStoreProcessor.java

protected void writeBlobAsBlob(final EntityManager em, final InputStream stream,
        final Function<Long, String> idFunction) throws SQLException, IOException {
    final Connection c = em.unwrap(Connection.class);

    long size;//from  www  . ja  va 2 s.c om

    final Blob blob = c.createBlob();
    try {
        try (OutputStream s = blob.setBinaryStream(1)) {
            size = ByteStreams.copy(stream, s);
        }

        // we can only set it now, since we only have the size
        final String id = idFunction.apply(size);

        try (PreparedStatement ps = c.prepareStatement("update ARTIFACTS set data=? where id=?")) {
            ps.setBlob(1, blob);
            ps.setString(2, id);
            ps.executeUpdate();
        }
    } finally {
        blob.free();
    }
}

From source file:org.kmworks.liferay.rpc.client.RPCExtensionsHttp.java

/** Download a FileEntry's file content to a file on the local file system.
 * // www  .  j a va  2  s  .  c  om
 * @param token The authenticated user token
 * @param fileEntryId
 * @param version
 * @param localFile
 * @return
 * @throws PortalException
 * @throws SystemException 
 */
public static long downloadFile(AuthToken token, long fileEntryId, String version, File localFile)
        throws PortalException, SystemException {

    long byteCount;
    try {
        try (InputStream from = new ByteArrayInputStream(getFileAsBytes(token, fileEntryId, version));
                OutputStream to = new FileOutputStream(localFile)) {
            byteCount = ByteStreams.copy(from, to);
        }
    } catch (IOException ioe) {
        _log.error(ioe, ioe);
        throw new SystemException(ioe);
    }
    return byteCount;
}