Example usage for java.io DataInputStream DataInputStream

Introduction

In this page you can find the example usage for java.io DataInputStream DataInputStream.

Prototype

public DataInputStream(InputStream in) 

Source Link

Document

Creates a DataInputStream that uses the specified underlying InputStream.

Usage

From source file:com.videobox.web.util.dwr.AutoAnnotationDiscoveryContainer.java

private void handleClass(InputStream istream, StringBuilder sb) throws IOException {
    DataInputStream dstream = new DataInputStream(istream);
    ClassFile cf = new ClassFile(dstream);
    AnnotationsAttribute visible = (AnnotationsAttribute) cf.getAttribute(AnnotationsAttribute.visibleTag);
    if (visible != null) {
        for (Annotation ann : visible.getAnnotations()) {
            // logger.info( cf.getName() + " contains @" + ann.getTypeName() );
            if (ann.getTypeName().equals(RemoteProxy.class.getName())) {
                sb.append(cf.getName() + ",");
            } else if (ann.getTypeName().equals(DataTransferObject.class.getName())) {
                dataConverterObjects.add(cf.getName());
                //                    addDataConverterObject(cf);
            }//from   w  w  w  .  j  a  va2  s  .  c om
        }
    }
}

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From source file:com.bahmanm.karun.PacmanConfHelper.java

/**
 * Extracts valuable info from 'pacman.conf'.
 *///from  w w w .j  a v a 2 s  .c  om
private void extractInfo() throws FileNotFoundException, IOException {
    FileInputStream fis = new FileInputStream(confPath);
    DataInputStream dis = new DataInputStream(fis);
    BufferedReader br = new BufferedReader(new InputStreamReader(dis));
    String line;
    try {
        while ((line = br.readLine()) != null) {
            line = StringUtils.normalizeSpace(line);
            if (line.startsWith("#")) {
                continue;
            } else if (line.startsWith("[") && line.endsWith("]")) {
                String section = line.substring(1, line.length() - 1);
                if (!section.equals("options")) {
                    repos.add(section);
                }
            } else if (line.startsWith("DBPath")) {
                dbPath = line.split("=")[1].trim();
            } else if (line.startsWith("CacheDir")) {
                cacheDir = line.split("=")[1].trim();
            }
        }
    } catch (IOException ex) {
        Logger.getLogger(PacmanConfHelper.class.getName()).log(Level.SEVERE, null, ex);
        try {
            br.close();
            dis.close();
            fis.close();
        } catch (IOException ioex) {
            throw new IOException("Error closing stream or reader: " + ioex.getMessage());
        }
    }
}

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From source file:LCModels.MessageListener.java

public void run() {
    /* Keep Thread running */
    while (true) {
        try {//from  w  w  w  .  java 2  s . co  m
            /* Accept connection on server */
            Socket serverSocket = server.accept();
            /* DataInputStream to get message sent by client program */
            DataInputStream in = new DataInputStream(serverSocket.getInputStream());
            /* We are receiving message in JSON format from client. Parse String to JSONObject */
            JSONObject clientMessage = new JSONObject(in.readUTF());

            /* Flag to check chat window is opened for user that sent message */
            boolean flagChatWindowOpened = false;
            /* Reading Message and Username from JSONObject */
            String userName = clientMessage.get("Username").toString();
            String message = clientMessage.getString("Message").toString();

            /* Get list of Frame/Windows opened by mainFrame.java */
            for (Frame frame : Frame.getFrames()) {
                /* Check Frame/Window is opened for user */
                if (frame.getTitle().equals(userName)) {
                    /* Frame/ Window is already opened */
                    flagChatWindowOpened = true;
                    /* Get instance of ChatWindow */
                    ChatWindowUI chatWindow = (ChatWindowUI) frame;
                    /* Get previous messages from TextArea */
                    String previousMessage = chatWindow.getMessageArea().getText();
                    /* Set message to TextArea with new message */
                    chatWindow.getMessageArea().setText(previousMessage + "\n" + userName + ": " + message);
                }
            }

            /* ChatWindow is not open for user sent message to server */
            if (!flagChatWindowOpened) {
                /* Create an Object of ChatWindow */
                ChatWindowUI chatWindow = new ChatWindowUI();
                /**
                 * We are setting title of window to identify user for next
                 * message we gonna receive You can set hidden value in
                 * ChatWindow.java file.
                 */
                chatWindow.setTitle(userName);
                /* Set message to TextArea */
                chatWindow.getMessageArea().setText(message);
                /* Make ChatWindow visible */
                chatWindow.setVisible(true);
            }

            /* Get DataOutputStream of client to repond */
            DataOutputStream out = new DataOutputStream(serverSocket.getOutputStream());
            /* Send response message to client */
            out.writeUTF("Received from " + clientMessage.get("Username").toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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From source file:edu.cornell.med.icb.goby.compression.HybridChunkCodec1.java

@Override
public Message decode(final byte[] bytes) throws IOException {
    final DataInputStream completeChunkData = new DataInputStream(new FastByteArrayInputStream(bytes));
    final int compressedSize = completeChunkData.readInt();
    final int storedChecksum = completeChunkData.readInt();

    final byte[] compressedBytes = new byte[compressedSize];
    final int read = completeChunkData.read(compressedBytes, 0, compressedSize);
    assert read == compressedSize : "read size must match recorded size.";
    crc32.reset();/*from w ww .  ja v  a2s .co  m*/

    crc32.update(compressedBytes);
    final int computedChecksum = (int) crc32.getValue();
    if (computedChecksum != storedChecksum) {
        throw new InvalidChecksumException();
    }
    final int bytesLeft = bytes.length - 4 - compressedSize - 4;
    final byte[] leftOver = new byte[bytesLeft];
    // 8 is the number of bytes to encode the length of the compressed chunk, plus
    // the number of bytes to encode the checksum.
    System.arraycopy(bytes, 8 + compressedSize, leftOver, 0, bytesLeft);
    final Message reducedProtoBuff = gzipCodec.decode(leftOver);
    if (reducedProtoBuff == null) {
        return null;
    }
    return handler.decompressCollection(reducedProtoBuff, compressedBytes);
}

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From source file:com.googlecode.onevre.utils.ServerClassLoader.java

/**
 * Creates a new ServerClassLoader/* w w w.j ava  2s  .  c  o  m*/
 * @param parent The parent class loader
 * @param localCacheDirectory The directory to cache files to
 * @param remoteServer The URL of the remote server
 */
public ServerClassLoader(ClassLoader parent, File localCacheDirectory, URL remoteServer) {
    super(parent);
    this.localCacheDirectory = localCacheDirectory;
    this.localLibDirectory = new File(localCacheDirectory, LIB_DIR);
    File versionFile = new File(localCacheDirectory, "Version");
    boolean versionCorrect = false;
    if (!localCacheDirectory.exists()) {
        localCacheDirectory.mkdirs();
    } else {
        if (versionFile.exists()) {
            try {
                BufferedReader reader = new BufferedReader(new FileReader(versionFile));
                String version = reader.readLine();
                reader.close();
                versionCorrect = Defaults.PAG_VERSION.equals(version);
                log.info(version + " == " + Defaults.PAG_VERSION + " = " + versionCorrect);
            } catch (IOException e) {
                // Do Nothing
            }
        }
        try {
            FileInputStream input = new FileInputStream(new File(localCacheDirectory, INDEX));
            DataInputStream cacheFile = new DataInputStream(input);
            FileChannel channel = input.getChannel();
            while (channel.position() < channel.size()) {
                URL url = new URL(cacheFile.readUTF());
                String file = cacheFile.readUTF();
                if (versionCorrect && url.getHost().equals(remoteServer.getHost())
                        && (url.getPort() == remoteServer.getPort())) {
                    File jar = new File(localCacheDirectory, file);
                    if (jar.exists()) {
                        indexJar(url, jar);
                        CHECKED.put(url, true);
                    }
                }
            }
            input.close();
        } catch (FileNotFoundException e) {
            // Do Nothing - cache will be recreated later

        } catch (IOException e) {
            // Do Nothing - as above

        }
    }
    localLibDirectory.mkdirs();
    try {
        PrintWriter writer = new PrintWriter(versionFile);
        writer.println(Defaults.PAG_VERSION);
        writer.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    this.remoteServer = remoteServer;
}

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From source file:fr.insalyon.creatis.vip.datamanager.server.rpc.FileDownloadServiceImpl.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    User user = (User) req.getSession().getAttribute(CoreConstants.SESSION_USER);
    String operationId = req.getParameter("operationid");

    if (user != null && operationId != null && !operationId.isEmpty()) {

        try {//  ww  w  . jav a 2 s  .  c o  m
            GRIDAPoolClient client = CoreUtil.getGRIDAPoolClient();
            Operation operation = client.getOperationById(operationId);

            File file = new File(operation.getDest());
            if (file.isDirectory()) {
                file = new File(operation.getDest() + "/" + FilenameUtils.getName(operation.getSource()));
            }
            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());
            resp.setHeader("Content-Disposition", "attachment; filename=\"" + file.getName() + "\"");

            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 (GRIDAClientException ex) {
            logger.error(ex);
        }
    }
}

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From source file:TripleDES.java

/** Read a TripleDES secret key from the specified file */
public static SecretKey readKey(File f)
        throws IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidKeySpecException {
    // Read the raw bytes from the keyfile
    DataInputStream in = new DataInputStream(new FileInputStream(f));
    byte[] rawkey = new byte[(int) f.length()];
    in.readFully(rawkey);//from w  ww . j  a  v a  2s  . co  m
    in.close();

    // Convert the raw bytes to a secret key like this
    DESedeKeySpec keyspec = new DESedeKeySpec(rawkey);
    SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
    SecretKey key = keyfactory.generateSecret(keyspec);
    return key;
}

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From source file:org.jboss.capedwarf.tools.BulkLoader.java

private static void doDump(Arguments args) {
    String url = getUrl(args);/* w ww  .ja  v a  2s.  c o  m*/
    String filename = getFilename(args);
    int packetSize = getPacketSize(args);

    File file = new File(filename);
    if (file.exists()) {
        System.out.println("WARNING: File " + filename + " already exists!");
        System.exit(1);
    }

    System.out.println("Dumping data from " + url + " to " + filename + " in packets of size " + packetSize);

    DumpFileFacade dumpFileFacade = new DumpFileFacade(file);
    try {
        DefaultHttpClient client = new DefaultHttpClient(new SingleClientConnManager());
        try {
            HttpGet get = new HttpGet(url);
            get.getParams().setParameter("action", "dump");
            System.out.println("Downloading packet of " + packetSize + " entities");
            HttpResponse response = client.execute(get);
            DataInputStream in = new DataInputStream(response.getEntity().getContent());
            while (true) {
                byte[] idBytes = readArray(in);
                if (idBytes == null) {
                    break;
                }
                byte[] entityPbBytes = readArray(in);
                byte[] sortKeyBytes = readArray(in);

                dumpFileFacade.add(idBytes, entityPbBytes, sortKeyBytes);
            }

        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    } finally {
        dumpFileFacade.close();
    }

}

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From source file:com.cedarsoft.crypt.CertTest.java

@Test
public void testKey() throws Exception {
    InputStream inStream = new DataInputStream(getClass().getResource("/test.der").openStream());
    byte[] keyBytes = new byte[inStream.available()];
    inStream.read(keyBytes);/*from w  w  w . j av a  2  s  .  c o  m*/
    inStream.close();

    KeyFactory keyFactory = KeyFactory.getInstance("RSA");

    // decipher private key
    PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(keyBytes);
    RSAPrivateKey privKey = (RSAPrivateKey) keyFactory.generatePrivate(privSpec);
    assertNotNull(privKey);

    Cipher cipher = Cipher.getInstance("RSA");
    cipher.init(Cipher.ENCRYPT_MODE, privKey);

    byte[] bytes = cipher.doFinal(PLAINTEXT.getBytes());
    assertEquals(SCRAMBLED, new String(Base64.encodeBase64(bytes)));
}

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