Example usage for java.io ObjectOutputStream ObjectOutputStream

Introduction

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

Prototype

public ObjectOutputStream(OutputStream out) throws IOException

Source Link

Document

Creates an ObjectOutputStream that writes to the specified OutputStream.

Usage

From source file:de.xwic.appkit.core.cluster.impl.ClientHandler.java

@Override
public void run() {

    try {/*  w w  w.jav a2 s .c om*/

        //socket.setSoTimeout(10000); // set the timeout to 10 seconds.

        ObjectInputStream oIn = new ObjectInputStream(socket.getInputStream());
        ObjectOutputStream oOut = new ObjectOutputStream(socket.getOutputStream());

        while (true) {
            Message msgIn;
            try {
                msgIn = (Message) oIn.readObject();
            } catch (IOException e) {
                // this occurs when the connection is closed
                log.info("Client " + socket.getInetAddress() + " disconnected.");
                break;
            } catch (ClassNotFoundException e) {
                log.error("Can not handle incoming message - stream might be corrupted..", e);
                break;
            }

            Response response = null;

            //System.out.println("Received: " + msgIn.getCommand() + " ('" + msgIn.getArgument() + "')");

            // as long as the client is not identified, no protocol is selected. 
            if (protocol == null) {
                if (Message.CMD_IDENTIFY_CLIENT.equals(msgIn.getCommand())) {
                    // argument must contain client type, which causes the selection of the right protocol
                    // hard-coded here right now, but might get externalized into some configuration file
                    // later on...
                    if ("ClusterNode".equals(msgIn.getArgument())) {
                        protocol = new ClusterNodeClientProtocol(cluster);
                    } else if ("Console".equals(msgIn.getArgument())) {
                        protocol = new ConsoleClientProtocol(cluster);
                    } else {
                        log.debug("Invalid protocol selected.");
                        response = new Response(false, "Invalid protocol selected.");
                    }

                    if (protocol != null) {
                        log.info("Selected protocol " + protocol.getClass().getName());
                    }

                } else {
                    log.debug("Invalid command received - awaiting client identification..");
                }
            } else {
                response = protocol.handleMessage(socket, msgIn);
            }

            if (response == null) {
                response = new Response(true); // send success response
            }

            oOut.writeObject(response);

        }

    } catch (IOException e) {
        log.error("Communication error with client", e);
        // will cause an exit.. 
    }

    if (protocol != null) {
        protocol.onConnectionLost();
    }
    // close the socket.
    try {
        socket.close();
    } catch (IOException e) {
        log.warn("Error closing socket.", e);
    }

    // handle exiting properly (i.e. notify Cluster instance)

}

From source file:com.weibo.api.motan.protocol.restful.support.RestfulUtil.java

public static Response serializeError(Exception ex) {
    try {//from  w  ww.  java  2 s.c om
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(ex);
        oos.flush();

        String info = new String(Base64.encodeBytesToBytes(baos.toByteArray()),
                MotanConstants.DEFAULT_CHARACTER);
        return Response.status(Status.EXPECTATION_FAILED).header(EXCEPTION_HEADER, ex.getClass()).entity(info)
                .build();
    } catch (IOException e) {
        LoggerUtil.error("serialize " + ex.getClass() + " error", e);

        return Response.status(Status.INTERNAL_SERVER_ERROR).entity("serialization " + ex.getClass() + " error")
                .build();
    }
}

From source file:de.codecentric.boot.admin.event.ClientApplicationEventTest.java

@SuppressWarnings("unchecked")
/**//from w  ww  . j  av a  2s. c  o m
 * yeah nasty but we need exact the same timestamp
 */
private <T extends Serializable> T cloneBySerialization(T obj) throws IOException, ClassNotFoundException {
    try (ByteArrayOutputStream buf = new ByteArrayOutputStream()) {
        try (ObjectOutputStream oos = new ObjectOutputStream(buf)) {
            oos.writeObject(obj);
        }

        try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(buf.toByteArray()))) {
            return (T) ois.readObject();
        }
    }
}

From source file:com.hp.autonomy.hod.client.api.resource.ResourceTest.java

@Test
public void testSerializeAndDeserialize() throws IOException, ClassNotFoundException {
    final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

    final Resource input = new Resource(UUID.randomUUID(), "name", "domain");

    try (final ObjectOutput objectOutputStream = new ObjectOutputStream(byteArrayOutputStream)) {
        objectOutputStream.writeObject(input);
    }/*  w w  w  .j  a v  a  2  s  . co m*/

    try (final ObjectInputStream objectInputStream = new ObjectInputStream(
            new ByteArrayInputStream(byteArrayOutputStream.toByteArray()))) {
        @SuppressWarnings("CastToConcreteClass")
        final Resource output = (Resource) objectInputStream.readObject();
        assertThat(output, is(input));
    }
}

From source file:ddf.camel.component.catalog.content.FileSystemDataAccessObject.java

public void store(String storePath, String suffix, String key, Object value) {
    OutputStream file = null;/*from  ww  w.  java2s . com*/
    ObjectOutputStream output = null;
    try {
        File dir = new File(storePath);
        if (!dir.exists()) {
            if (!dir.mkdir()) {
                LOGGER.debug("Unable to create directory: {}", dir.getAbsolutePath());
            }
        }
        file = new FileOutputStream(storePath + key + suffix);
        OutputStream buffer = new BufferedOutputStream(file);
        output = new ObjectOutputStream(buffer);
        output.writeObject(value);
    } catch (IOException e) {
        LOGGER.debug("IOException storing value in cache with key = " + key, e);
    } finally {
        IOUtils.closeQuietly(output);
        IOUtils.closeQuietly(file);
    }
}

From source file:BckgrndServiceThreads.fileListingTH.java

void saveSerializedObject(String Objectname, Object serialisableObject) throws Exception {
    FileOutputStream outputFile = new FileOutputStream(Objectname);
    ObjectOutputStream outputObject = new ObjectOutputStream(outputFile);
    outputObject.writeObject(serialisableObject);
    outputObject.close();//from   www  .  j  a  v  a  2  s.  co  m
}

From source file:com.facebook.infrastructure.utils.FBUtilities.java

public static byte[] serializeToStream(Object o) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] bytes = ArrayUtils.EMPTY_BYTE_ARRAY;
    try {//from  www. j  a  v a 2 s . c o  m
        ObjectOutputStream oos = new ObjectOutputStream(bos);
        oos.writeObject(o);
        oos.flush();
        bytes = bos.toByteArray();
        oos.close();
        bos.close();
    } catch (IOException e) {
        LogUtil.getLogger(FBUtilities.class.getName()).info(LogUtil.throwableToString(e));
    }
    return bytes;
}

From source file:com.btoddb.trellis.common.serialization.JavaSerializer.java

private void serializeToOutputStream(Serializable obj, OutputStream os) {
    try {// ww w .  ja v  a2s. co m
        ObjectOutputStream oos = new ObjectOutputStream(os);
        oos.writeObject(obj);
        oos.close();
    } catch (IOException e) {
        throw new TrellisException("exception while serializing Java Serializable object", e);
    }
}

From source file:edu.uga.cs.fluxbuster.clustering.hierarchicalclustering.Dendrogram.java

/**
 * Creates a deep copy of any object./*from   www.  jav a  2  s.c o  m*/
 *
 * @param o the object to copy
 * @return the copy
 */
public Object deepCopy(Object o) {
    try {
        ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(byteOut);
        out.writeObject(o);
        out.close();

        byte[] data = byteOut.toByteArray();
        ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(data));
        Object copy = in.readObject();
        in.close();

        return copy;
    } catch (Exception e) {
        if (log.isErrorEnabled()) {
            log.error("Error performing deep copy.", e);
        }
    }

    return null;
}

From source file:de.betterform.session.SessionSerializerTest.java

/**
 * first serializes the initialized XFormsProcessorImpl and then reads it back again.
 * @throws Exception/*from  w ww  .j av a 2  s .  c o  m*/
 */
public void testSerialization() throws Exception {
    String fullPath = getClass().getResource("session.xhtml").getPath();
    String strippedPath = fullPath.substring(0, fullPath.lastIndexOf("session.xhtml"));
    File outputFile = new File(strippedPath, "foo.xml");
    this.processor.writeExternal(new ObjectOutputStream(new FileOutputStream(outputFile)));

    XFormsProcessorImpl xformsProcesssorImpl = new XFormsProcessorImpl();
    assertTrue(xformsProcesssorImpl.getContainer() == null);

    File inFile = new File(strippedPath, "foo.xml");
    xformsProcesssorImpl.readExternal(new ObjectInputStream(new FileInputStream(inFile)));
    xformsProcesssorImpl.init();
    assertNotNull(xformsProcesssorImpl.getContainer());
}