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:org.eclipse.packagedrone.repo.channel.web.channel.TransferController.java

protected ModelAndView performExport(final HttpServletResponse response, final String filename,
        final IOConsumer<OutputStream> exporter) {
    try {//from   w w w.j  a  v a  2 s.c om
        final Path tmp = Files.createTempFile("export-", null);

        try {
            try (OutputStream tmpStream = new BufferedOutputStream(new FileOutputStream(tmp.toFile()))) {
                // first we spool this out to  temp file, so that we don't block the channel for too long
                exporter.accept(tmpStream);
            }

            response.setContentLengthLong(tmp.toFile().length());
            response.setContentType("application/zip");
            response.setHeader("Content-Disposition", String.format("attachment; filename=%s", filename));

            try (InputStream inStream = new BufferedInputStream(new FileInputStream(tmp.toFile()))) {
                ByteStreams.copy(inStream, response.getOutputStream());
            }

            return null;
        } finally {
            Files.deleteIfExists(tmp);
        }
    } catch (final IOException e) {
        return CommonController.createError("Failed to export", null, e);
    }
}

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

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

    final long size;

    final Path tmp = Files.createTempFile("blob-", null);
    try {//from w  ww.  java  2s .com

        try (OutputStream os = new FileOutputStream(tmp.toFile())) {
            size = ByteStreams.copy(stream, os);
        }

        final String id = idFunction.apply(size);

        try (InputStream in = new FileInputStream(tmp.toFile())) {
            try (PreparedStatement ps = c.prepareStatement("update ARTIFACTS set data=? where id=?")) {
                ps.setBinaryStream(1, in, size);
                ps.setString(2, id);
                ps.executeUpdate();
            }
        }
    } finally {
        Files.deleteIfExists(tmp);
    }
}

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From source file:com.linecorp.armeria.internal.grpc.GrpcMessageMarshaller.java

public ByteBuf serializeResponse(O message) throws IOException {
    switch (responseType) {
    case PROTOBUF:
        return serializeProto((Message) message);
    default://from  w  w  w .j av a2s.  c o m
        CompositeByteBuf out = alloc.compositeBuffer();
        try (ByteBufOutputStream os = new ByteBufOutputStream(out)) {
            ByteStreams.copy(method.streamResponse(message), os);
        }
        return out;
    }
}

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From source file:com.google.api.client.http.AbstractInputStreamContent.java

/**
 * Writes the content provided by the given source input stream into the given destination output
 * stream./*  ww w  . j  a v a2s.c o m*/
 *
 * <p>
 * Sample use:
 * </p>
 *
 * <pre>
static void downloadMedia(HttpResponse response, File file)
    throws IOException {
  FileOutputStream out = new FileOutputStream(file);
  try {
    AbstractInputStreamContent.copy(response.getContent(), out, true);
  } finally {
    out.close();
  }
}
 * </pre>
 *
 * @param inputStream source input stream
 * @param outputStream destination output stream
 * @param closeInputStream whether the input stream should be closed at the end of this method
 * @since 1.7
 */
public static void copy(InputStream inputStream, OutputStream outputStream, boolean closeInputStream)
        throws IOException {
    try {
        ByteStreams.copy(inputStream, outputStream);
    } finally {
        if (closeInputStream) {
            inputStream.close();
        }
    }
}

---

From source file:org.eclipse.xtend.core.parser.JFlexLoader.java

protected void copyIntoFileAndCloseStream(InputStream content, final File file)
        throws FileNotFoundException, IOException {
    BufferedInputStream inputStream = new BufferedInputStream(content);
    try {//from  w w w.java  2  s .  c om
        BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(file));
        try {
            ByteStreams.copy(inputStream, outputStream);
        } finally {
            outputStream.close();
        }
    } finally {
        inputStream.close();
    }
}

---

From source file:com.codeminders.socketio.sample.chat.ChatSocketServlet.java

@Override
@SuppressWarnings("unchecked")
public void init(ServletConfig config) throws ServletException {
    super.init(config);

    of("/chat").on(new ConnectionListener() {
        @Override/*w w w  . j a v  a2 s  .c  om*/
        public void onConnect(final Socket socket) {
            try {
                socket.emit(WELCOME, "Welcome to Socket.IO Chat, " + socket.getId() + "!");

                socket.join("room");
            } catch (SocketIOException e) {
                e.printStackTrace();
                socket.disconnect(true);
            }

            socket.on(new DisconnectListener() {

                @Override
                public void onDisconnect(Socket socket, DisconnectReason reason, String errorMessage) {
                    of("/chat").emit(ANNOUNCEMENT, socket.getSession().getSessionId() + " disconnected");
                }
            });

            socket.on(CHAT_MESSAGE, new EventListener() {
                @Override
                public Object onEvent(String name, Object[] args, boolean ackRequested) {
                    LOGGER.log(Level.FINE, "Received chat message: " + args[0]);

                    try {
                        socket.broadcast("room", CHAT_MESSAGE, socket.getId(), args[0]);
                    } catch (SocketIOException e) {
                        e.printStackTrace();
                    }

                    return "OK"; //this object will be sent back to the client in ACK packet
                }
            });

            socket.on(FORCE_DISCONNECT, new EventListener() {
                @Override
                public Object onEvent(String name, Object[] args, boolean ackRequested) {
                    socket.disconnect(false);
                    return null;
                }
            });

            socket.on(CLIENT_BINARY, new EventListener() {
                @Override
                public Object onEvent(String name, Object[] args, boolean ackRequested) {
                    Map map = (Map<Object, Object>) args[0];
                    InputStream is = (InputStream) map.get("buffer");
                    ByteArrayOutputStream os = new ByteArrayOutputStream();
                    try {
                        ByteStreams.copy(is, os);
                        byte[] array = os.toByteArray();
                        String s = "[";
                        for (byte b : array)
                            s += " " + b;
                        s += " ]";
                        LOGGER.log(Level.FINE, "Binary received: " + s);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                    return "OK";
                }
            });

            socket.on(SERVER_BINARY, new EventListener() {
                @Override
                public Object onEvent(String name, Object[] args, boolean ackRequested) {
                    try {
                        socket.emit(SERVER_BINARY, new ByteArrayInputStream(new byte[] { 1, 2, 3, 4 }),
                                new ACKListener() {
                                    @Override
                                    public void onACK(Object[] args) {
                                        System.out.println("ACK received: " + args[0]);
                                    }
                                });
                    } catch (SocketIOException e) {
                        socket.disconnect(true);
                    }

                    return null;
                }
            });
        }
    });

    //        Executors.newSingleThreadScheduledExecutor().scheduleAtFixedRate(new Runnable()
    //        {
    //            @Override
    //            public void run()
    //            {
    //                try
    //                {
    //                    of("/chat").in("room").emit("time", new Date().toString());
    //                }
    //                catch (SocketIOException e)
    //                {
    //                    e.printStackTrace();
    //                }
    //            }
    //        }, 0, 20, TimeUnit.SECONDS);

    //        of("/news").on(new ConnectionListener()
    //        {
    //            @Override
    //            public void onConnect(Socket socket)
    //            {
    //                socket.on();
    //            }
    //        });
}

---

From source file:org.puder.trs80.io.FileManager.java

/**
 * Reads a file within the base path of this manager.
 *
 * @param filename the filename to read// ww  w. jav a 2s  .  c o  m
 * @return The contents of the file, if it could be read.
 */
public Optional<byte[]> readFile(String filename) {
    try {
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        FileInputStream file = new FileInputStream(new File(baseDir, filename));
        ByteStreams.copy(file, bytes);
        return Optional.of(bytes.toByteArray());
    } catch (IOException e) {
        return Optional.absent();
    }
}

---

From source file:abs.backend.erlang.ErlApp.java

private void copyRuntime() throws IOException {
    InputStream is = null;/*ww w  .  j  a  va 2s . c o m*/
    // TODO: this only works when the erlang compiler is invoked
    // from a jar file.  See http://stackoverflow.com/a/2993908 on
    // how to handle the other case.
    URLConnection resource = getClass().getResource("").openConnection();
    try {
        for (String f : RUNTIME_FILES) {
            if (f.endsWith("/*")) {
                String dirname = f.substring(0, f.length() - 2);
                String inname = RUNTIME_PATH + dirname;
                String outname = destDir + "/" + dirname;
                new File(outname).mkdirs();
                if (resource instanceof JarURLConnection) {
                    copyJarDirectory(((JarURLConnection) resource).getJarFile(), inname, outname);
                } else if (resource instanceof FileURLConnection) {
                    /* stolz: This at least works for the unit tests from within Eclipse */
                    File file = new File("src");
                    assert file.exists();
                    FileUtils.copyDirectory(new File("src/" + RUNTIME_PATH), destDir);
                } else {
                    throw new UnsupportedOperationException("File type: " + resource);
                }

            } else {
                is = ClassLoader.getSystemResourceAsStream(RUNTIME_PATH + f);
                if (is == null)
                    throw new RuntimeException("Could not locate Runtime file:" + f);
                String outputFile = f.replace('/', File.separatorChar);
                File file = new File(destDir, outputFile);
                file.getParentFile().mkdirs();
                ByteStreams.copy(is, Files.newOutputStreamSupplier(file));
            }
        }
    } finally {
        if (is != null)
            is.close();
    }
    for (String f : EXEC_FILES) {
        new File(destDir, f).setExecutable(true, false);
    }
}

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From source file:eu.esdihumboldt.hale.ui.common.components.URILink.java

private SelectionAdapter createDefaultSelectionAdapter(final URI uri) {
    return new SelectionAdapter() {

        private URI removeFragment(URI uri) throws URISyntaxException {
            String uristring = uri.toString();
            uristring = uristring.substring(0, uristring.indexOf("#"));
            return new URI(uristring);
        }/*from w  ww  .  j a  v a2s .c om*/

        // the URI has to be an existing file on the local drive or on a
        // server
        @Override
        public void widgetSelected(SelectionEvent e) {
            URI newuri = uri;
            try {
                // online resource
                if (uri.getScheme().equals("http") || uri.getScheme().equals("https")) {
                    try {
                        Desktop.getDesktop().browse(uri);
                    } catch (IOException e1) {
                        MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Opening Error",
                                "No default application set!");
                    }
                    return;
                }
                if (uri.toString().contains("#")) {
                    newuri = removeFragment(uri);
                }

                // local resource or bundle resource
                if (DefaultInputSupplier.SCHEME_LOCAL.equals(newuri.getScheme())
                        || "bundleentry".equals(newuri.getScheme())) {
                    // cannot be opened by system
                    // so copy resource to temporary file
                    String name = newuri.getPath();
                    int index = name.lastIndexOf('/');
                    if (index >= 0) {
                        name = name.substring(index + 1);
                    }

                    if (!name.isEmpty()) {
                        File tmpFile = Files.createTempFile("resource", name).toFile();
                        try (OutputStream out = new FileIOSupplier(tmpFile).getOutput();
                                InputStream in = new DefaultInputSupplier(newuri).getInput()) {
                            ByteStreams.copy(in, out);
                        }
                        tmpFile.deleteOnExit();
                        newuri = tmpFile.toURI();
                    }
                }

                // try creating a file
                File file = new File(newuri);
                if (file.exists()) {
                    try {
                        Desktop.getDesktop().open(file);
                    } catch (IOException e2) {
                        try {
                            Desktop.getDesktop().browse(newuri);
                        } catch (IOException e1) {
                            MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Opening Error",
                                    "No default application set!");
                        }
                    }
                } else {
                    try {
                        Desktop.getDesktop().browse(newuri);
                    } catch (IOException e1) {
                        MessageDialog.openWarning(Display.getCurrent().getActiveShell(), "Opening Error",
                                "No default application set!");
                    }
                }
            } catch (Exception e1) {
                // ignore
            }
        }
    };
}

---

From source file:com.proofpoint.http.server.ClassPathResourceHandler.java

@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    if (baseRequest.isHandled()) {
        return;/* www. j  av a2 s .  c o  m*/
    }

    URL resource = getResourcePath(request);
    if (resource == null) {
        return;
    }

    // When a request hits this handler, it will serve something. Either data or an error.
    baseRequest.setHandled(true);

    String method = request.getMethod();
    boolean skipContent = false;
    if (!HttpMethods.GET.equals(method)) {
        if (HttpMethods.HEAD.equals(method)) {
            skipContent = true;
        } else {
            response.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
            return;
        }
    }

    try (InputStream resourceStream = resource.openStream()) {
        Buffer contentTypeBytes = MIME_TYPES.getMimeByExtension(resource.toString());
        if (contentTypeBytes != null) {
            // convert the content type bytes to a string using the specified character set
            String contentTypeHeaderValue = contentTypeBytes.toString(Charsets.US_ASCII);
            response.setContentType(contentTypeHeaderValue);
        }

        if (skipContent) {
            return;
        }

        // Send the content out. Lifted straight out of ResourceHandler.java
        OutputStream out;
        try {
            out = response.getOutputStream();
        } catch (IllegalStateException e) {
            out = new WriterOutputStream(response.getWriter());
        }

        if (out instanceof AbstractHttpConnection.Output) {
            ((AbstractHttpConnection.Output) out).sendContent(resourceStream);
        } else {
            ByteStreams.copy(resourceStream, out);
        }
    }
}

---

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