List of usage examples for java.io DataInputStream DataInputStream
public DataInputStream(InputStream in)
From source file:com.opensoc.json.serialization.JSONKafkaSerializer.java
@SuppressWarnings("unchecked") public JSONObject fromBytes(byte[] input) { ByteArrayInputStream inputBuffer = new ByteArrayInputStream(input); DataInputStream data = new DataInputStream(inputBuffer); JSONObject output = new JSONObject(); try {/* ww w . j a v a2 s . c om*/ int mapSize = data.readInt(); for (int i = 0; i < mapSize; i++) { String key = (String) getObject(data); // System.out.println("Key Found"+ key); Object val = getObject(data); output.put(key, val); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } return output; }
From source file:fr.insalyon.creatis.vip.query.server.rpc.FileDownload.java
@Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { User user = (User) req.getSession().getAttribute(CoreConstants.SESSION_USER); String queryId = req.getParameter("queryid"); String path = req.getParameter("path"); String queryName = req.getParameter("name"); String tab[] = path.split("/"); if (user != null && queryId != null && !queryId.isEmpty()) { try {//from w ww . ja v a 2 s . c o m String k = new String(); int l = tab.length; for (int i = 0; i < l - 1; i++) { k += "//" + tab[i]; } File file = new File(k); logger.info("that" + k); if (file.isDirectory()) { file = new File(k + "/" + tab[l - 1]); } int length = 0; ServletOutputStream op = resp.getOutputStream(); ServletContext context = getServletConfig().getServletContext(); String mimetype = context.getMimeType(file.getName()); logger.info("(" + user.getEmail() + ") Downloading '" + file.getAbsolutePath() + "'."); resp.setContentType((mimetype != null) ? mimetype : "application/octet-stream"); resp.setContentLength((int) file.length()); //name of the file in servlet download resp.setHeader("Content-Disposition", "attachment; filename=\"" + queryName + "_" + getCurrentTimeStamp().toString().replaceAll(" ", "_") + ".txt" + "\""); byte[] bbuf = new byte[4096]; DataInputStream in = new DataInputStream(new FileInputStream(file)); while ((in != null) && ((length = in.read(bbuf)) != -1)) { op.write(bbuf, 0, length); } in.close(); op.flush(); op.close(); } catch (Exception ex) { logger.error(ex); } } }
From source file:es.logongas.util.seguridad.CodigoVerificacionSeguro.java
public boolean isValido() { try {/*from w w w. j a v a2s . co m*/ Base32 base32 = new Base32(); byte datos[] = base32.decode(valor); DataInputStream dataInputStream = new DataInputStream(new ByteArrayInputStream(datos)); int key = dataInputStream.readInt(); int numeroAleatorio = dataInputStream.readInt(); int crcReal = dataInputStream.readInt(); CRC crc = new CRC(); crc.update(key).update(numeroAleatorio); if (crcReal == crc.getCRC()) { return true; } else { return false; } } catch (IOException ex) { return false; } }
From source file:com.stefanbrenner.droplet.service.impl.ArduinoService.java
@Override public synchronized boolean connect(final CommPortIdentifier portId, final IDropletContext context) { try {//ww w.j a va 2 s . c o m ArduinoService.dropletContext = context; ArduinoService.LOGGER.debug("Connect to port: " + portId.getName()); // try to open a connection to the serial port ArduinoService.connSerialPort = (SerialPort) portId.open(this.getClass().getName(), ArduinoService.TIME_OUT); // set port parameters ArduinoService.connSerialPort.setSerialPortParams(ArduinoService.DATA_RATE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE); // open the streams ArduinoService.input = new DataInputStream(ArduinoService.connSerialPort.getInputStream()); ArduinoService.output = new DataOutputStream(ArduinoService.connSerialPort.getOutputStream()); // add event listeners ArduinoService.connSerialPort.addEventListener(this); ArduinoService.connSerialPort.notifyOnDataAvailable(true); ArduinoService.connSerialPort.notifyOnCarrierDetect(true); // set connected flag setConnected(true); ArduinoService.LOGGER.info("Connection to port " + portId.getName() + " successful established"); return true; } catch (PortInUseException e) { ArduinoService.LOGGER.error("Error connecting to port {}", portId.getName(), e); } catch (UnsupportedCommOperationException e) { ArduinoService.LOGGER.error("Error connecting to port {}", portId.getName(), e); } catch (IOException e) { ArduinoService.LOGGER.error("Error connecting to port {}", portId.getName(), e); } catch (TooManyListenersException e) { ArduinoService.LOGGER.error("Error connecting to port {}", portId.getName(), e); } setConnected(false); return false; }
From source file:net.mybox.mybox.ClientStatus.java
private boolean getLastSync() { try {/*w w w. jav a 2s. co m*/ FileInputStream fin = new FileInputStream(lastSyncFile); DataInputStream din = new DataInputStream(fin); lastSync = din.readLong(); din.close(); } catch (Exception e) { return false; } return true; }
From source file:org.mobisocial.corral.CorralS3Connector.java
Uri downloadAndDecrypt(String ticket, String datestr, String objName, File cachefile, String mykey,
CorralDownloadFuture future, DownloadProgressCallback callback)
throws IOException, GeneralSecurityException {
Log.d(TAG, "-----DOWNLOAD+DECRYPT START-----" + (String.valueOf(System.currentTimeMillis())));
Log.d(TAG, SERVER_URL + objName);
Log.d(TAG, "Authorization: AWS " + ticket);
Log.d(TAG, "Date: " + datestr);
HttpClient http = new DefaultHttpClient();
HttpGet get = new HttpGet(SERVER_URL + objName);
get.addHeader("Authorization", "AWS " + ticket);
get.addHeader("Date", datestr);
HttpResponse response = http.execute(get);
DataInputStream is = new DataInputStream(response.getEntity().getContent());
long contentLength = response.getEntity().getContentLength();
if (!cachefile.exists()) {
File tmpFile = new File(cachefile.getAbsoluteFile() + ".tmp");
tmpFile.getParentFile().mkdirs();
try {/*from www . j av a2 s.c o m*/
CryptUtil cu = new CryptUtil(mykey);
cu.InitCiphers();
FileOutputStream fos = new FileOutputStream(tmpFile);
cu.decrypt(is, fos, contentLength, callback);
try {
is.close();
} catch (IOException e) {
}
try {
fos.close();
} catch (IOException e) {
}
tmpFile.renameTo(cachefile);
} catch (IOException e) {
if (tmpFile.exists()) {
tmpFile.delete();
}
throw e;
} catch (GeneralSecurityException e) {
throw e;
}
}
return cachefile.exists() ? Uri.fromFile(cachefile) : null;
}
From source file:org.nd4j.linalg.api.test.NDArrayTests.java
@Test public void testReadWrite() throws Exception { Nd4j.dtype = DataBuffer.FLOAT; INDArray write = Nd4j.linspace(1, 4, 4); ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); Nd4j.write(write, dos);/*from ww w .ja v a 2 s . c om*/ ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray()); DataInputStream dis = new DataInputStream(bis); INDArray read = Nd4j.read(dis); assertEquals(write, read); }
From source file:edu.cornell.med.icb.goby.compression.FastBufferedMessageChunksReader.java
private void reposition(final long start, final long end) throws IOException { assert end >= start : "end must be larger than start "; if (start == 0 && input.position() == 0) { return;/*from w w w . j a v a 2s . co m*/ } /* if (start > input.length()) { withinSlice = false; return; }*/ input.position(start); if (input.position() != start) { // must have happened because we are past the end of stream. withinSlice = false; return; } in = new DataInputStream(input); int contiguousDelimiterBytes = 0; long skipped = 0; long position = 0; withinSlice = true; boolean codecSeen = false; // search though the input stream until a delimiter chunk, end of stream, or end of slice is reached int b; while ((b = in.read()) != -1 && input.position() < end) { final byte c = (byte) b; // System.out.printf("%2X(%d) ", c, contiguousDelimiterBytes); // System.out.flush(); if (!codecSeen && hasValidCodecCode(c)) { skipped++; contiguousDelimiterBytes++; codecSeen = true; continue; } if (codecSeen && c == MessageChunksWriter.DELIMITER_CONTENT) { contiguousDelimiterBytes++; } else { if (contiguousDelimiterBytes == MessageChunksWriter.DELIMITER_LENGTH + 1) { chunkCodec = ChunkCodecHelper.withRegistrationCode(lastCodecCodeSeen); // position exactly after the 7th 0xFF byte, past the first byte of the size: // the first byte of size was already read and is provided in c. long positionBeforeValidation = input.position(); if (!chunkCodec.validate(c, in)) { LOG.warn(String.format("Found spurious boundary around position %d ", input.position())); contiguousDelimiterBytes = 0; chunkCodec = null; lastCodecCodeSeen = 0; codecSeen = true; continue; } final long newPosition = positionBeforeValidation - (MessageChunksWriter.DELIMITER_LENGTH + 2); input.position(newPosition); return; } if (skipped > MessageChunksWriter.DELIMITER_LENGTH + 1) { contiguousDelimiterBytes = 0; codecSeen = false; } } ++skipped; } if (b == -1 || input.position() >= end) { withinSlice = false; } position = start + skipped; streamPositionAtStart = input.position(); }
From source file:com.simiacryptus.mindseye.test.data.MNIST.java
private static Stream<byte[]> binaryStream(@Nonnull final String name, final int skip, final int recordSize) throws IOException { @Nullable//from w w w . ja v a 2s .co m InputStream stream = null; try { stream = Util.cacheStream(TestUtil.S3_ROOT.resolve(name)); } catch (@Nonnull NoSuchAlgorithmException | KeyManagementException e) { throw new RuntimeException(e); } final byte[] fileData = IOUtils .toByteArray(new BufferedInputStream(new GZIPInputStream(new BufferedInputStream(stream)))); @Nonnull final DataInputStream in = new DataInputStream(new ByteArrayInputStream(fileData)); in.skip(skip); return MNIST.toIterator(new BinaryChunkIterator(in, recordSize)); }
From source file:android.core.SSLSocketTest.java
/** * Does a number of HTTPS requests on some host and consumes the response. * We don't use the HttpsUrlConnection class, but do this on our own * with the SSLSocket class. This gives us a chance to test the basic * behavior of SSL./* w w w . j a v a 2s . co m*/ * * @param host The host name the request is being sent to. * @param port The port the request is being sent to. * @param path The path being requested (e.g. "/index.html"). * @param outerLoop The number of times we reconnect and do the request. * @param innerLoop The number of times we do the request for each * connection (using HTTP keep-alive). * @param delay The delay after each request (in seconds). * @throws IOException When a problem occurs. */ private void fetch(SSLSocketFactory socketFactory, String host, int port, boolean secure, String path, int outerLoop, int innerLoop, int delay, int timeout) throws IOException { InetSocketAddress address = new InetSocketAddress(host, port); for (int i = 0; i < outerLoop; i++) { // Connect to the remote host Socket socket = secure ? socketFactory.createSocket() : new Socket(); if (timeout >= 0) { socket.setKeepAlive(true); socket.setSoTimeout(timeout * 1000); } socket.connect(address); // Get the streams OutputStream output = socket.getOutputStream(); PrintWriter writer = new PrintWriter(output); try { DataInputStream input = new DataInputStream(socket.getInputStream()); try { for (int j = 0; j < innerLoop; j++) { android.util.Log.d("SSLSocketTest", "GET https://" + host + path + " HTTP/1.1"); // Send a request writer.println("GET https://" + host + path + " HTTP/1.1\r"); writer.println("Host: " + host + "\r"); writer.println("Connection: " + (j == innerLoop - 1 ? "Close" : "Keep-Alive") + "\r"); writer.println("\r"); writer.flush(); int length = -1; boolean chunked = false; String line = input.readLine(); if (line == null) { throw new IOException("No response from server"); // android.util.Log.d("SSLSocketTest", "No response from server"); } // Consume the headers, check content length and encoding type while (line != null && line.length() != 0) { // System.out.println(line); int dot = line.indexOf(':'); if (dot != -1) { String key = line.substring(0, dot).trim(); String value = line.substring(dot + 1).trim(); if ("Content-Length".equalsIgnoreCase(key)) { length = Integer.valueOf(value); } else if ("Transfer-Encoding".equalsIgnoreCase(key)) { chunked = "Chunked".equalsIgnoreCase(value); } } line = input.readLine(); } assertTrue("Need either content length or chunked encoding", length != -1 || chunked); // Consume the content itself if (chunked) { length = Integer.parseInt(input.readLine(), 16); while (length != 0) { byte[] buffer = new byte[length]; input.readFully(buffer); input.readLine(); length = Integer.parseInt(input.readLine(), 16); } input.readLine(); } else { byte[] buffer = new byte[length]; input.readFully(buffer); } // Sleep for the given number of seconds try { Thread.sleep(delay * 1000); } catch (InterruptedException ex) { // Shut up! } } } finally { input.close(); } } finally { writer.close(); } // Close the connection socket.close(); } }