Example usage for java.io ObjectOutputStream flush

Introduction

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

Prototype

public void flush() throws IOException 

Source Link

Document

Flushes the stream.

Usage

From source file:org.echocat.nodoodle.transport.HandlerPacker.java

protected void writeData(Handler<?> handler, JarOutputStream jar, String dataFileName) throws IOException {
    if (handler == null) {
        throw new NullPointerException();
    }/* w w w  .  j  av a2 s .co  m*/
    if (jar == null) {
        throw new NullPointerException();
    }
    final JarEntry entry = new JarEntry(dataFileName);
    jar.putNextEntry(entry);
    final ObjectOutputStream oos = new ObjectOutputStream(jar);
    oos.writeObject(handler);
    oos.flush();
    jar.closeEntry();
}

---

From source file:org.apache.storm.hdfs.security.AutoHDFSNimbus.java

@SuppressWarnings("unchecked")
private byte[] getHadoopCredentials(Map conf, final Configuration configuration,
        final String topologySubmitterUser) {
    try {/*from   w w  w. j  av a2  s.  com*/
        if (UserGroupInformation.isSecurityEnabled()) {
            login(configuration);

            final URI nameNodeURI = conf.containsKey(TOPOLOGY_HDFS_URI)
                    ? new URI(conf.get(TOPOLOGY_HDFS_URI).toString())
                    : FileSystem.getDefaultUri(configuration);

            UserGroupInformation ugi = UserGroupInformation.getCurrentUser();

            final UserGroupInformation proxyUser = UserGroupInformation.createProxyUser(topologySubmitterUser,
                    ugi);

            Credentials creds = (Credentials) proxyUser.doAs(new PrivilegedAction<Object>() {
                @Override
                public Object run() {
                    try {
                        FileSystem fileSystem = FileSystem.get(nameNodeURI, configuration);
                        Credentials credential = proxyUser.getCredentials();

                        if (configuration.get(STORM_USER_NAME_KEY) == null) {
                            configuration.set(STORM_USER_NAME_KEY, hdfsPrincipal);
                        }

                        fileSystem.addDelegationTokens(configuration.get(STORM_USER_NAME_KEY), credential);
                        LOG.info("Delegation tokens acquired for user {}", topologySubmitterUser);
                        return credential;
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                }
            });

            ByteArrayOutputStream bao = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(bao);

            creds.write(out);
            out.flush();
            out.close();

            return bao.toByteArray();
        } else {
            throw new RuntimeException("Security is not enabled for HDFS");
        }
    } catch (Exception ex) {
        throw new RuntimeException("Failed to get delegation tokens.", ex);
    }
}

---

From source file:org.cloudcoder.app.loadtester.EditSequence.java

/**
 * Save to given file./*from  w w w. j a  v  a 2  s . c  o m*/
 * 
 * @param fileName name of file
 * @throws IOException
 */
public void saveToFile(String fileName) throws IOException {
    ObjectOutputStream oos = null;

    try {
        oos = new ObjectOutputStream(new FileOutputStream(fileName));
        oos.writeObject(this);
        oos.flush();
    } finally {
        IOUtils.closeQuietly(oos);
    }
}

---

From source file:org.springframework.cloud.aws.messaging.support.converter.ObjectMessageConverter.java

@Override
public Object convertToInternal(Object payload, MessageHeaders headers) {
    if (!(payload instanceof Serializable)) {
        throw new IllegalArgumentException("Can't convert payload, it must be of type Serializable");
    }//from  www . ja  va  2s. co  m

    ByteArrayOutputStream content = new ByteArrayOutputStream();
    Base64OutputStream base64OutputStream = new Base64OutputStream(content, true, 0, null);
    ObjectOutputStream objectOutputStream = null;
    try {
        objectOutputStream = new ObjectOutputStream(base64OutputStream);
        objectOutputStream.writeObject(payload);
        objectOutputStream.flush();
    } catch (IOException e) {
        throw new MessageConversionException("Error converting payload into binary representation", e);
    } finally {
        if (objectOutputStream != null) {
            try {
                objectOutputStream.close();
            } catch (IOException e) {
                LOGGER.warn("Error closing object output stream while writing message payload", e);
            }
        }
    }

    return new String(content.toByteArray(), 0, content.size(), this.encoding);
}

---

From source file:com.joliciel.talismane.parser.ParsingConstrainerImpl.java

@Override
public void onCompleteParse() {
    if (this.transitionSystem == null)
        this.transitionSystem = TalismaneSession.getTransitionSystem();

    if (this.file != null) {
        try {// w  w  w.  jav a2 s  .c  o  m
            ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(file, false));
            zos.putNextEntry(new ZipEntry("ParsingConstrainer.obj"));
            ObjectOutputStream oos = new ObjectOutputStream(zos);
            try {
                oos.writeObject(this);
            } finally {
                oos.flush();
            }
            zos.flush();
            zos.close();
        } catch (IOException ioe) {
            LogUtils.logError(LOG, ioe);
            throw new RuntimeException(ioe);
        }
    }
}

---

From source file:com.nextcloud.android.sso.InputStreamBinder.java

private <T extends Serializable> ByteArrayInputStream serializeObjectToInputStream(T obj) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(obj);//w w  w. ja  va2  s.  c  o m
    oos.flush();
    oos.close();
    return new ByteArrayInputStream(baos.toByteArray());
}

---

From source file:disko.flow.analyzers.socket.SocketTransmitter.java

public void writeMessage(Message message) {
    log.debug("Establishing connection to " + host + ":" + port);
    while (true) {
        Socket socket = null;//from w  ww. j  av a  2  s.  c  o m
        ObjectOutputStream out = null;
        try {
            socket = new Socket(host, port);
            out = new ObjectOutputStream(socket.getOutputStream());
            out.writeObject(message);
            out.flush();
            log.debug("Sent " + message);
            return;
        } catch (UnknownHostException e) {
            log.error("Error connecting to " + host + ":" + port, e);
        } catch (IOException e) {
            log.error("Error sending to " + host + ":" + port + " message " + message.getData(), e);
        } finally {
            if (out != null)
                try {
                    out.close();
                } catch (Throwable ignored) {
                    log.error("While closing transmitter output.", ignored);
                }
            if (socket != null)
                try {
                    socket.close();
                } catch (Throwable ignored) {
                    log.error("While closing transmitter socket.", ignored);

                }
        }
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ignored) {
            break;
        }
    }
}

---

From source file:ByteFIFOTest.java

private void makeSrcData() throws IOException {
    String[] list = { "The first string is right here", "The second string is a bit longer and also right here",
            "The third string", "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "0123456789", "The last string in the list" };

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(list);/*w w w  . j  a v a 2s. com*/
    oos.flush();
    oos.close();

    srcData = baos.toByteArray();
}

---

From source file:edu.vt.middleware.gator.log4j.SocketServerTest.java

/**
 * Tests connecting to the socket server and sending a logging event that
 * should be written to configured appenders.
 *
 * @throws  Exception  On errors.// w w  w  . j  a  va2  s  . c  o  m
 */
@Test
public void testConnectAndLog() throws Exception {
    final Socket sock = new Socket();
    try {
        final SocketAddress addr = new InetSocketAddress(InetAddress.getByName(server.getBindAddress()),
                server.getPort());
        sock.connect(addr, SOCKET_CONNECT_TIMEOUT);

        // Allow the socket server time to build the hierarchy
        // before sending a test logging event
        Thread.sleep(2000);

        Assert.assertEquals(1, server.getLoggingEventHandlers().size());
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Sending test logging event.");
        }

        final LoggingEvent event = new LoggingEvent(TEST_CATEGORY, Logger.getLogger(TEST_CATEGORY), Level.DEBUG,
                TEST_MESSAGE, null);
        final ObjectOutputStream oos = new ObjectOutputStream(sock.getOutputStream());
        oos.writeObject(event);
        oos.flush();
    } finally {
        if (sock.isConnected()) {
            sock.close();
        }
    }

    // Pause to allow time for logging events to be written
    Thread.sleep(2000);

    // Client socket close should trigger cleanup of server handler mapping
    Assert.assertEquals(0, server.getLoggingEventHandlers().size());

    for (AppenderConfig appender : testProject.getAppenders()) {
        final String logFilePath = FileHelper.pathCat(CLIENT_ROOT_DIR, testProject.getName(),
                appender.getAppenderParam("file").getValue());
        final String contents = readTextFile(logFilePath);
        Assert.assertTrue(contents.contains(TEST_MESSAGE));
    }
}

---

From source file:com.openteach.diamond.network.waverider.master.MasterState.java

public ByteBuffer toByteBuffer() {
    ByteArrayOutputStream bout = null;
    ObjectOutputStream oout = null;
    try {/*from  www. j ava 2 s . com*/
        bout = new ByteArrayOutputStream();
        oout = new ObjectOutputStream(bout);
        oout.writeObject(this);
        oout.flush();
        return ByteBuffer.wrap(bout.toByteArray());
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            if (oout != null) {
                oout.close();
            }
            if (bout != null) {
                bout.close();
            }
        } catch (IOException e) {
            logger.error(e);
        }
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »