Example usage for java.io ObjectOutputStream flush

List of usage examples for java.io ObjectOutputStream flush

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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.xwoot.jxta.JxtaPeer.java

/** {@inheritDoc} **/
public Object sendObject(Object object, PipeAdvertisement pipeAdv) throws JxtaException {
    if (!this.isConnectedToGroup()) {
        throw new PeerGroupException("The peer has not yet joined a group and contacted a RDV peer.");
    }//from  w w w .  java  2s.  c  o m

    if (!(object instanceof Serializable)) {
        throw new IllegalArgumentException(
                "The object does not implement the interface java.io.Serializable and can not be sent.");
    }

    boolean failed = false;

    Socket socket = null;

    InputStream is = null;
    OutputStream os = null;
    ObjectInputStream ois = null;
    ObjectOutputStream oos = null;
    try {
        socket = new JxtaSocket(this.currentJoinedGroup, pipeAdv);
        socket.setSoTimeout(WAIT_INTERVAL_FOR_DIRECT_COMMUNICATION_CONNECTIONS);
    } catch (Exception e) {
        throw new JxtaException("Failed to create a direct connection using the provided pipe advertisement.",
                e);
    }

    try {
        os = socket.getOutputStream();
        oos = new ObjectOutputStream(os);

        oos.writeObject(object);

        oos.flush();
        os.flush();
    } catch (Exception e) {
        failed = true;
        throw new JxtaException(
                "Failed to send an object through a direct connection using the provided pipe advertisement.",
                e);
    } finally {
        try {
            if (oos != null) {
                oos.close();
            }
            if (os != null) {
                os.close();
            }

            // Close the socket only if this step has failed.
            if (failed && socket != null) {
                socket.close();
            }
        } catch (Exception e) {
            // Just log it.
            this.logger.warn("Failed to close streams for this conenction.");
        }
    }

    Object replyMessage = null;
    try {
        is = socket.getInputStream();
        ois = new ObjectInputStream(is);

        replyMessage = ois.readObject();

    } catch (EOFException eof) {
        this.logger.debug("There is no reply to this message. Returning null.");
        replyMessage = null;
    } catch (Exception e) {
        throw new JxtaException("Failed to receive reply message.", e);
    } finally {
        try {
            if (ois != null) {
                ois.close();
            }
        } catch (Exception e) {
            // Just log it.
            this.logger.warn("Failed to close object input stream for this conenction.", e);
        }

        try {
            if (is != null) {
                is.close();
            }
        } catch (Exception e) {
            // Just log it.
            this.logger.warn("Failed to close input stream for this conenction.", e);
        }

        try {
            // Close the socket, we are done.
            if (socket != null) {
                socket.close();
            }
        } catch (Exception e) {
            // Just log it.
            this.logger.warn("Failed to close socket for this conenction.");
        }
    }

    return replyMessage;
}

From source file:bftsmart.tom.core.TOMLayer.java

private void catch_up(int regency) {

    Logger.println("(TOMLayer.catch_up) verify STOPDATA info");
    ObjectOutputStream out = null;
    ByteArrayOutputStream bos = null;

    LastEidData lastHighestEid = lcManager.getHighestLastEid(regency);

    int currentEid = lastHighestEid.getEid() + 1;
    HashSet<SignedObject> signedCollects = null;
    byte[] propose = null;
    int batchSize = -1;

    // normalize the collects and apply to them the predicate "sound"
    if (lcManager.sound(lcManager.selectCollects(regency, currentEid))) {

        Logger.println("(TOMLayer.catch_up) sound predicate is true");

        signedCollects = lcManager.getCollects(regency); // all original collects that the replica has received

        Consensus cons = new Consensus(-1); // the only purpose of this object is to obtain the batchsize,
        // using code inside of createPropose()

        propose = createPropose(cons);/*from  w w  w.  ja  va 2s  . c  o  m*/
        batchSize = cons.batchSize;

        try { // serialization of the CATCH-UP message
            bos = new ByteArrayOutputStream();
            out = new ObjectOutputStream(bos);

            out.writeObject(lastHighestEid);

            //TODO: Missing: serialization of the proof

            out.writeInt(currentEid);
            out.writeObject(signedCollects);
            out.writeObject(propose);
            out.writeInt(batchSize);

            out.flush();
            bos.flush();

            byte[] payload = bos.toByteArray();
            out.close();
            bos.close();

            Logger.println("(TOMLayer.catch_up) sending SYNC message for regency " + regency);

            // send the CATCH-UP message
            communication.send(this.controller.getCurrentViewOtherAcceptors(), new LCMessage(
                    this.controller.getStaticConf().getProcessId(), TOMUtil.SYNC, regency, payload));

            finalise(regency, lastHighestEid, currentEid, signedCollects, propose, batchSize, true);

        } catch (IOException ex) {
            ex.printStackTrace();
            java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                out.close();
                bos.close();
            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
}

From source file:bftsmart.tom.core.Synchronizer.java

private void catch_up(int regency) {

    Logger.println("(Synchronizer.catch_up) verify STOPDATA info");
    ObjectOutputStream out = null;
    ByteArrayOutputStream bos = null;

    CertifiedDecision lastHighestCID = lcManager.getHighestLastCID(regency);

    int currentCID = lastHighestCID.getCID() + 1;
    HashSet<SignedObject> signedCollects = null;
    byte[] propose = null;
    int batchSize = -1;

    // normalize the collects and apply to them the predicate "sound"
    if (lcManager.sound(lcManager.selectCollects(regency, currentCID))) {

        Logger.println("(Synchronizer.catch_up) sound predicate is true");

        signedCollects = lcManager.getCollects(regency); // all original collects that the replica has received

        Decision dec = new Decision(-1); // the only purpose of this object is to obtain the batchsize,
                                         // using code inside of createPropose()

        propose = tom.createPropose(dec);
        batchSize = dec.batchSize;/*from  www . j a  v a2 s.  c o m*/

        try { // serialization of the CATCH-UP message
            bos = new ByteArrayOutputStream();
            out = new ObjectOutputStream(bos);

            out.writeObject(lastHighestCID);

            //TODO: Missing: serialization of the proof?
            out.writeObject(signedCollects);
            out.writeObject(propose);
            out.writeInt(batchSize);

            out.flush();
            bos.flush();

            byte[] payload = bos.toByteArray();
            out.close();
            bos.close();

            System.out.println("(Synchronizer.catch_up) sending SYNC message for regency " + regency);

            // send the CATCH-UP message
            communication.send(this.controller.getCurrentViewOtherAcceptors(), new LCMessage(
                    this.controller.getStaticConf().getProcessId(), TOMUtil.SYNC, regency, payload));

            finalise(regency, lastHighestCID, signedCollects, propose, batchSize, true);

        } catch (IOException ex) {
            ex.printStackTrace();
            java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                out.close();
                bos.close();
            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
}

From source file:bftsmart.tom.core.TOMLayer.java

/**
 * This method is called when there is a timeout and the request has already been forwarded to the leader
 * @param requestList List of requests that the replica wanted to order but didn't manage to
 *//*from w  ww  .ja va  2s  .c  o  m*/
public void triggerTimeout(List<TOMMessage> requestList) {

    ObjectOutputStream out = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    requestsTimer.stopTimer();
    requestsTimer.Enabled(false);

    // still not in the leader change phase?

    if (lcManager.getNextReg() == lcManager.getLastReg()) {

        Logger.println("(TOMLayer.triggerTimeout) initialize synch phase");

        lcManager.setNextReg(lcManager.getLastReg() + 1); // define next timestamp

        int regency = lcManager.getNextReg();

        // store messages to be ordered
        lcManager.setCurrentRequestTimedOut(requestList);

        // store information about messages that I'm going to send
        lcManager.addStop(regency, this.controller.getStaticConf().getProcessId());

        execManager.stop(); // stop consensus execution

        try { // serialize content to send in STOP message
            out = new ObjectOutputStream(bos);

            if (lcManager.getCurrentRequestTimedOut() != null) {

                //TODO: If this is null, then there was no timeout. What to do?
                byte[] msgs = bb.makeBatch(lcManager.getCurrentRequestTimedOut(), 0, 0, controller);
                out.writeBoolean(true);
                out.writeObject(msgs);
            } else {
                out.writeBoolean(false);
            }

            byte[] payload = bos.toByteArray();

            out.flush();
            bos.flush();

            out.close();
            bos.close();

            // send STOP-message
            Logger.println("(TOMLayer.triggerTimeout) sending STOP message to install regency " + regency);
            communication.send(this.controller.getCurrentViewOtherAcceptors(), new LCMessage(
                    this.controller.getStaticConf().getProcessId(), TOMUtil.STOP, regency, payload));

        } catch (IOException ex) {
            ex.printStackTrace();
            java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                out.close();
                bos.close();
            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

        evaluateStops(regency); // evaluate STOP messages

    }

}

From source file:net.sf.farrago.server.FarragoServletCommandSink.java

private void handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
        throws ServletException {
    ObjectInputStream ois = null;
    ObjectOutputStream oos = null;

    try {//from  w w  w.  j a  v  a  2 s .c  o  m
        // Get the method to execute
        String method = httpServletRequest.getHeader(ServletCommandSinkIdentifier.METHOD_IDENTIFIER);

        if (method != null) {
            ois = new ObjectInputStream(httpServletRequest.getInputStream());
            // And initialize the output
            OutputStream os = httpServletResponse.getOutputStream();
            oos = new ObjectOutputStream(os);
            Object objectToReturn = null;

            try {
                // Some command to process ?
                if (method.equals(ServletCommandSinkIdentifier.PROCESS_COMMAND)) {
                    // Read parameter objects
                    Long connuid = (Long) ois.readObject();
                    Long uid = (Long) ois.readObject();
                    Command cmd = (Command) ois.readObject();
                    CallingContext ctx = (CallingContext) ois.readObject();
                    // Delegate execution to the CommandProcessor
                    objectToReturn = processor.process(connuid, uid, cmd, ctx);
                } else if (method.equals(ServletCommandSinkIdentifier.CONNECT_COMMAND)) {
                    String url = ois.readUTF();
                    Properties props = (Properties) ois.readObject();
                    Properties clientInfo = (Properties) ois.readObject();
                    CallingContext ctx = (CallingContext) ois.readObject();

                    ConnectionConfiguration connectionConfiguration = VJdbcConfiguration.singleton()
                            .getConnection(url);

                    if (connectionConfiguration != null) {
                        Connection conn = connectionConfiguration.create(props);
                        objectToReturn = processor.registerConnection(conn, connectionConfiguration, clientInfo,
                                ctx);
                    } else {
                        objectToReturn = new SQLException("VJDBC-Connection " + url + " not found");
                    }
                }
            } catch (Throwable t) {
                // Wrap any exception so that it can be transported back to
                // the client
                objectToReturn = SQLExceptionHelper.wrap(t);
            }

            // Write the result in the response buffer
            oos.writeObject(objectToReturn);
            oos.flush();

            httpServletResponse.flushBuffer();
        } else {
            // No VJDBC-Method ? Then we redirect the stupid browser user to
            // some information page :-)
            httpServletResponse.sendRedirect("index.html");
        }
    } catch (Exception e) {
        logger.error("Unexpected Exception", e);
        throw new ServletException(e);
    } finally {
        StreamCloser.close(ois);
        StreamCloser.close(oos);
    }
}

From source file:bftsmart.tom.core.TOMLayer.java

private void evaluateStops(int nextReg) {

    boolean enterFirstPhase = this.controller.getStaticConf().isBFT();
    boolean condition = false;
    ObjectOutputStream out = null;
    ByteArrayOutputStream bos = null;

    // pass to the leader change phase if more than f messages have been received already
    if (enterFirstPhase && lcManager.getStopsSize(nextReg) > this.controller.getQuorumF()
            && lcManager.getNextReg() == lcManager.getLastReg()) {

        Logger.println("(TOMLayer.evaluateStops) initialize synch phase");
        requestsTimer.Enabled(false);//  w  ww.  j a  v a 2 s  .co  m
        requestsTimer.stopTimer();

        lcManager.setNextReg(lcManager.getLastReg() + 1); // define next timestamp

        int regency = lcManager.getNextReg();

        // store information about message I am going to send
        lcManager.addStop(regency, this.controller.getStaticConf().getProcessId());

        execManager.stop(); // stop execution of consensus

        try { // serialize conent to send in the STOP message
            bos = new ByteArrayOutputStream();
            out = new ObjectOutputStream(bos);

            if (lcManager.getCurrentRequestTimedOut() != null) {

                //TODO: If this is null, there was no timeout. What shall be done then?
                out.writeBoolean(true);
                byte[] msgs = bb.makeBatch(lcManager.getCurrentRequestTimedOut(), 0, 0, controller);
                out.writeObject(msgs);
            } else {
                out.writeBoolean(false);
            }

            out.flush();
            bos.flush();

            byte[] payload = bos.toByteArray();
            out.close();
            bos.close();

            // send message STOP
            Logger.println("(TOMLayer.evaluateStops) sending STOP message to install regency " + regency);
            communication.send(this.controller.getCurrentViewOtherAcceptors(), new LCMessage(
                    this.controller.getStaticConf().getProcessId(), TOMUtil.STOP, regency, payload));

        } catch (IOException ex) {
            ex.printStackTrace();
            java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                out.close();
                bos.close();
            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    if (this.controller.getStaticConf().isBFT()) {
        condition = lcManager.getStopsSize(nextReg) > this.controller.getCertificateQuorum()
                && lcManager.getNextReg() > lcManager.getLastReg();
    } else {
        condition = (lcManager.getStopsSize(nextReg) > this.controller.getQuorumAccept()
                && lcManager.getNextReg() > lcManager.getLastReg());
    }
    // May I proceed to the synchronization phase?
    //if (lcManager.getStopsSize(nextReg) > this.reconfManager.getQuorum2F() && lcManager.getNextReg() > lcManager.getLastReg()) {
    if (condition) {

        Logger.println("(TOMLayer.evaluateStops) installing regency " + lcManager.getNextReg());
        lcManager.setLastReg(lcManager.getNextReg()); // define last timestamp

        int regency = lcManager.getLastReg();

        // avoid a memory leak
        lcManager.removeStops(nextReg);

        requestsTimer.Enabled(true);
        requestsTimer.setShortTimeout(-1);
        //requestsTimer.setTimeout(requestsTimer.getTimeout() * 2);
        requestsTimer.startTimer();

        //int leader = regency % this.reconfManager.getCurrentViewN(); // new leader
        int leader = lcManager.getNewLeader();
        int in = getInExec(); // eid to execute
        int last = getLastExec(); // last eid decided

        lm.setNewLeader(leader);

        // If I am not the leader, I have to send a STOPDATE message to it
        if (leader != this.controller.getStaticConf().getProcessId()) {

            try { // serialize content of the SYNC message

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

                if (last > -1) { // content of the last decided eid

                    out.writeBoolean(true);
                    out.writeInt(last);
                    Execution exec = execManager.getExecution(last);
                    //byte[] decision = exec.getLearner().getDecision();

                    ////// ISTO E PARA APANHAR UM BUG!!!!!
                    if (exec.getDecisionRound() == null || exec.getDecisionRound().propValue == null) {

                        System.out.println("[DEBUG INFO FOR LAST EID #1]");

                        if (exec.getDecisionRound() == null) {
                            System.out.println("No decision round for eid " + last);
                        } else {
                            System.out.println(
                                    "round for eid: " + last + ": " + exec.getDecisionRound().toString());

                            if (exec.getDecisionRound().propValue == null)
                                System.out.println("No propose for eid " + last);
                            else {
                                System.out.println("Propose hash for eid " + last + ": " + Base64
                                        .encodeBase64String(computeHash(exec.getDecisionRound().propValue)));
                            }
                        }

                        return;
                    }

                    byte[] decision = exec.getDecisionRound().propValue;
                    Set<PaxosMessage> proof = exec.getDecisionRound().getProof();

                    out.writeObject(decision);
                    out.writeObject(proof);
                    // TODO: WILL BE NECESSARY TO ADD A PROOF!!!

                }

                else
                    out.writeBoolean(false);

                if (in > -1) { // content of eid in execution

                    Execution exec = execManager.getExecution(in);

                    TimestampValuePair quorumWrites = exec.getQuorumWrites();
                    HashSet<TimestampValuePair> writeSet = exec.getWriteSet();

                    CollectData collect = new CollectData(this.controller.getStaticConf().getProcessId(), in,
                            quorumWrites, writeSet);

                    SignedObject signedCollect = sign(collect);

                    out.writeObject(signedCollect);

                }

                else {

                    CollectData collect = new CollectData(this.controller.getStaticConf().getProcessId(), -1,
                            new TimestampValuePair(-1, new byte[0]), new HashSet<TimestampValuePair>());

                    SignedObject signedCollect = sign(collect);

                    out.writeObject(signedCollect);

                }

                out.flush();
                bos.flush();

                byte[] payload = bos.toByteArray();
                out.close();
                bos.close();

                int[] b = new int[1];
                b[0] = leader;

                Logger.println("(TOMLayer.evaluateStops) sending STOPDATA of regency " + regency);
                // send message SYNC to the new leader
                communication.send(b, new LCMessage(this.controller.getStaticConf().getProcessId(),
                        TOMUtil.STOPDATA, regency, payload));

                //TODO: Turn on timeout again

            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            } finally {
                try {
                    out.close();
                    bos.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
                    java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
                }
            }

        } else { // If leader, I will store information that I would send in a SYNC message

            Logger.println("(TOMLayer.evaluateStops) I'm the leader for this new regency");
            LastEidData lastData = null;
            CollectData collect = null;

            if (last > -1) { // content of the last decided eid 
                Execution exec = execManager.getExecution(last);
                //byte[] decision = exec.getLearner().getDecision();

                ////// ISTO E PARA APANHAR UM BUG!!!!!
                if (exec.getDecisionRound() == null || exec.getDecisionRound().propValue == null) {

                    System.out.println("[DEBUG INFO FOR LAST EID #2]");

                    if (exec.getDecisionRound() == null)
                        System.out.println("No decision round for eid " + last);
                    else
                        System.out
                                .println("round for eid: " + last + ": " + exec.getDecisionRound().toString());
                    if (exec.getDecisionRound().propValue == null)
                        System.out.println("No propose for eid " + last);
                    else {
                        System.out.println("Propose hash for eid " + last + ": "
                                + Base64.encodeBase64String(computeHash(exec.getDecisionRound().propValue)));
                    }

                    return;
                }

                byte[] decision = exec.getDecisionRound().propValue;
                Set<PaxosMessage> proof = exec.getDecisionRound().getProof();

                lastData = new LastEidData(this.controller.getStaticConf().getProcessId(), last, decision,
                        proof);
                // TODO: WILL BE NECESSARY TO ADD A PROOF!!!

            } else {
                lastData = new LastEidData(this.controller.getStaticConf().getProcessId(), last, null, null);
            }
            lcManager.addLastEid(regency, lastData);

            if (in > -1) { // content of eid being executed
                Execution exec = execManager.getExecution(in);

                TimestampValuePair quorumWrites = exec.getQuorumWrites();
                HashSet<TimestampValuePair> writeSet = exec.getWriteSet();

                collect = new CollectData(this.controller.getStaticConf().getProcessId(), in, quorumWrites,
                        writeSet);

            } else {
                collect = new CollectData(this.controller.getStaticConf().getProcessId(), -1,
                        new TimestampValuePair(-1, new byte[0]), new HashSet<TimestampValuePair>());
            }

            SignedObject signedCollect = sign(collect);

            lcManager.addCollect(regency, signedCollect);
        }

    }
}

From source file:com.flexoodb.common.FlexUtils.java

static public byte[] getBytes(Object obj) throws Exception {
    byte[] b = null;
    ByteArrayOutputStream bos = null;
    ObjectOutputStream oos = null;
    try {/*from   ww w  .j a  v a 2  s  . c  om*/
        bos = new ByteArrayOutputStream();
        oos = new ObjectOutputStream(bos);
        oos.writeObject(obj);
        oos.flush();
        b = bos.toByteArray();
    } catch (Exception e) {
        throw e;
    } finally {
        try {
            oos.close();
            bos.close();
        } catch (Exception f) {
        }
    }
    return b;
}

From source file:paquete.HollywoodUI.java

private void Save_infoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_Save_infoActionPerformed
    File archivo_data = new File("./DataGenerated.bin");
    FileOutputStream fos = null;// w ww . j  a v a  2s.c  om
    ObjectOutputStream oos = null;
    try {
        if (!(archivo_data.exists())) {
            fos = new FileOutputStream(archivo_data);
            oos = new ObjectOutputStream(fos);
            oos.writeObject(this.HollyUniverseGraph);
            oos.flush();
            oos.close();
            fos.close();
        }
        JOptionPane.showMessageDialog(this, "Archivo escrito con exito", "EXITO",
                JOptionPane.INFORMATION_MESSAGE);
    } catch (Exception e) {
        JOptionPane.showMessageDialog(this, "Error al escribir archivo de datos", "ERROR",
                JOptionPane.ERROR_MESSAGE);
    }
}

From source file:bftsmart.tom.core.Synchronizer.java

/**
 * This method is called when there is a timeout and the request has already
 * been forwarded to the leader/*from   www .  ja v a2  s . c  o m*/
 *
 * @param requestList List of requests that the replica wanted to order but
 * didn't manage to
 */
public void triggerTimeout(List<TOMMessage> requestList) {

    ObjectOutputStream out = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    int regency = lcManager.getNextReg();

    requestsTimer.stopTimer();
    requestsTimer.Enabled(false);

    // still not in the leader change phase?
    if (lcManager.getNextReg() == lcManager.getLastReg()) {

        lcManager.setNextReg(lcManager.getLastReg() + 1); // define next timestamp

        regency = lcManager.getNextReg(); // update variable 

        // store messages to be ordered
        lcManager.setCurrentRequestTimedOut(requestList);

        // store information about messages that I'm going to send
        lcManager.addStop(regency, this.controller.getStaticConf().getProcessId());

        //execManager.stop(); // stop consensus execution

        //Get requests that timed out and the requests received in STOP messages
        //and add those STOPed requests to the client manager
        addSTOPedRequestsToClientManager();
        List<TOMMessage> messages = getRequestsToRelay();

        try { // serialize content to send in STOP message
            out = new ObjectOutputStream(bos);

            if (messages != null && messages.size() > 0) {

                //TODO: If this is null, then there was no timeout nor STOP messages.
                //What to do?
                byte[] serialized = bb.makeBatch(messages, 0, 0, controller);
                out.writeBoolean(true);
                out.writeObject(serialized);
            } else {
                out.writeBoolean(false);
                System.out.println(
                        "(Synchronizer.triggerTimeout) Strange... did not include any request in my STOP message for regency "
                                + regency);
            }

            byte[] payload = bos.toByteArray();

            out.flush();
            bos.flush();

            out.close();
            bos.close();

            // send STOP-message                
            System.out.println("(Synchronizer.triggerTimeout) sending STOP message to install regency "
                    + regency + " with " + (messages != null ? messages.size() : 0) + " request(s) to relay");

            LCMessage stop = new LCMessage(this.controller.getStaticConf().getProcessId(), TOMUtil.STOP,
                    regency, payload);
            requestsTimer.setSTOP(regency, stop); // make replica re-transmit the stop message until a new regency is installed
            communication.send(this.controller.getCurrentViewOtherAcceptors(), stop);

        } catch (IOException ex) {
            ex.printStackTrace();
            java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                out.close();
                bos.close();
            } catch (IOException ex) {
                ex.printStackTrace();
                java.util.logging.Logger.getLogger(TOMLayer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

    }

    processOutOfContextSTOPs(regency); // the replica might have received STOPs
                                       // that were out of context at the time they
                                       // were received, but now can be processed

    startSynchronization(regency); // evaluate STOP messages

}

From source file:es.pode.catalogadorWeb.presentacion.catalogadorBasicPlus.CatBasicPlusControllerImpl.java

private Object deepCopy(Object oldObj) throws Exception {
    ObjectOutputStream oos = null;
    ObjectInputStream ois = null;
    try {/*from   www . j a  v  a  2  s  .  c  o m*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream(); // A
        oos = new ObjectOutputStream(bos); // B
        // serialize and pass the object
        oos.writeObject(oldObj); // C
        oos.flush(); // D
        ByteArrayInputStream bin = new ByteArrayInputStream(bos.toByteArray()); // E
        ois = new ObjectInputStream(bin); // F
        // return the new object
        return ois.readObject(); // G
    } catch (Exception e) {
        System.out.println("Exception in ObjectCloner = " + e);
        throw (e);
    } finally {
        oos.close();
        ois.close();
    }
}