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.nuxeo.ecm.core.redis.contribs.RedisWorkQueuing.java

protected byte[] serializeWork(Work work) throws IOException {
    ByteArrayOutputStream baout = new ByteArrayOutputStream();
    ObjectOutputStream out = new ObjectOutputStream(baout);
    out.writeObject(work);/*from   w  ww.  jav  a2 s  .  com*/
    out.flush();
    out.close();
    return baout.toByteArray();
}

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From source file:org.objectweb.proactive.core.remoteobject.RemoteObjectSet.java

private void writeProtocol(ObjectOutputStream out, URI uri, RemoteRemoteObject rro) throws IOException {
    String scheme = uri.getScheme();
    byte[] buf = null;
    ObjectOutputStream oos = null;
    try {/*from  ww  w  .  j  a v  a2  s.c  o m*/
        RemoteObjectFactory rof = AbstractRemoteObjectFactory.getRemoteObjectFactory(scheme);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        oos = rof.getProtocolObjectOutputStream(baos);
        oos.writeObject(rro);
        oos.flush();
        buf = baos.toByteArray();
    } catch (UnknownProtocolException e) {
        LOGGER_RO.warn("[ROAdapter] Failed to serialize the RemoteRemoteObject for " + uri);
    } finally {
        if (oos != null)
            oos.close();
    }
    out.writeObject(uri);
    out.writeObject(buf); // null if serialization failed
}

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From source file:edu.caltechUcla.sselCassel.projects.jMarkets.server.control.DispatchServ.java

/** TCP: This method opens up a ServerSocket at the given port then starts a thread that waits
 *  for TCPMonitorReceivers to attempt to connect. Each connecting TCPMonitorReceiver creates an
 *  individual Socket connection, which is then attached to a TCPMonitorTransmitter. The MonitorServ
 *  uses the transmitter to communicate with the receiver, which in turn manipulates the monitor.
 *///from   w  ww .  j  a v a  2  s. c  o  m
private int activateTCPMonitorTunnel(int port) {
    try {
        log.info("DispatchServ is creating a TCP ServerSocket on port " + port
                + " for use in server-monitor communication");
        servSock = new ServerSocket(port);

        Runnable registrar = new Runnable() {

            public void run() {

                while (!stopRegThread) {
                    try {
                        monitorSocket = servSock.accept();

                        log.debug(
                                "Communication socket accepted from new monitor, opening input/output streams...");

                        ObjectInputStream inputStream = new ObjectInputStream(monitorSocket.getInputStream());
                        ObjectOutputStream outputStream = new ObjectOutputStream(
                                monitorSocket.getOutputStream());

                        outputStream.flush();

                        log.debug("Input stream opened, reading session ID from connecting monitor");
                        int sessionId = inputStream.readInt();
                        log.debug("Session ID " + sessionId
                                + " read from new monitor socket, pairing TCP receiver with a transmitter");

                        MonitorTransmitter transmitter = new TCPMonitorTransmitter(monitorSocket, inputStream,
                                outputStream);
                        registerMonitorTransmitter(transmitter, sessionId);
                    } catch (Exception e) {
                        log.warn(
                                "Error while accepting a monitor socket connection -- returning to 'waiting for accept' state",
                                e);
                        System.out.println(
                                "Error while accepting a monitor socket connection -- returning to 'waiting for accept' state");
                        e.printStackTrace();
                        continue;
                    }
                }
                /*log.error("exited while loop");
                try{
                monitorSocket.close();
                } catch( IOException ioe ){
                log.warn("Error while trying to close monitorSocket");
                ioe.printStackTrace();
                }*/
            }
        };

        registrationThread = new Thread(registrar);
        registrationThread.setDaemon(true);
        registrationThread.start();

        return port;
    } catch (Exception re) {
        log.error("Error activating ServerSocket for use in TCP monitor communication", re);
        return OPERATION_FAILED;
    }
}

---

From source file:org.jahia.utils.maven.plugin.contentgenerator.wise.FileAndFolderService.java

private List<FolderBO> generateFolders(Integer currentDepth, String currentPath, String currentNodePath,
        ExportBO wiseExport) {/*ww  w . j  a  va2  s.c o m*/

    Integer nbFoldersPerLevel = wiseExport.getNbFoldersPerLevel();
    Integer foldersDepth = wiseExport.getFoldersDepth();
    Integer filesPerFolder = wiseExport.getNbFilesPerFolder();
    List<String> fileNames = wiseExport.getFileNames();
    File filesDirectory = wiseExport.getFilesDirectory();

    String depthName;

    switch (currentDepth) {
    case 1:
        depthName = "aaa";
        break;
    case 2:
        depthName = "bbb";
        break;
    case 3:
        depthName = "ccc";
        break;
    case 4:
        depthName = "ddd";
        break;
    case 5:
        depthName = "eee";
        break;
    case 6:
        depthName = "fff";
        break;
    case 7:
        depthName = "ggg";
        break;
    case 8:
        depthName = "hhh";
        break;
    case 9:
        depthName = "iii";
        break;
    default:
        depthName = "aaa";
        break;
    }

    List<FolderBO> folders = new ArrayList<FolderBO>();
    for (int i = 1; i <= nbFoldersPerLevel; i++) {
        if (currentDepth == 1) {
            logger.info("Generating top folder " + i + "/" + nbFoldersPerLevel);
        }

        List<FolderBO> subFolders = null;
        Set<FileBO> files = generateFiles(filesPerFolder, currentNodePath + "/" + depthName + i, fileNames,
                wiseExport.getNumberOfUsers(), filesDirectory, wiseExport.getTags(), wiseExport.getSiteKey());

        // we serialize all generated files to use them in the collections
        FileOutputStream tmpFile;
        ObjectOutputStream oos;
        File tmpWiseFilesDir = new File(ExportBO.tmp + sep + ContentGeneratorCst.TMP_DIR_WISE_FILES);
        for (FileBO file : files) {
            try {
                tmpFile = new FileOutputStream(tmpWiseFilesDir + sep + totalGeneratedFiles + ".ser");
                oos = new ObjectOutputStream(tmpFile);
                oos.writeObject(file);
                oos.flush();
                oos.close();
                totalGeneratedFiles = totalGeneratedFiles + 1;
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        if (currentDepth < foldersDepth) {
            subFolders = generateFolders(currentDepth + 1, currentPath + sep + depthName + i,
                    currentNodePath + "/" + depthName + i, wiseExport);
        }
        FolderBO folder = new FolderBO(depthName + i, subFolders, files);
        folders.add(folder);

        if (currentDepth == 1) {
            File tmpTopFoldersDir = new File(ExportBO.tmp + sep + ContentGeneratorCst.TMP_DIR_TOP_FOLDERS);
            try {
                tmpFile = new FileOutputStream(tmpTopFoldersDir + sep + i + ".ser");
                oos = new ObjectOutputStream(tmpFile);
                oos.writeObject(folder);
                oos.flush();
                oos.close();
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            folder = null;
        }

        // create physical folder
        File newFolder = new File(currentPath + sep + depthName + i);
        newFolder.mkdirs();

        // copy files into the new folder
        for (Iterator<FileBO> iterator = files.iterator(); iterator.hasNext();) {
            FileBO fileBO = (FileBO) iterator.next();
            File sourceFile = new File(filesDirectory + sep + fileBO.getFileName());
            File targetDirectory = new File(newFolder + sep + fileBO.getFileName());
            // each file is contained in its own directory
            targetDirectory.mkdir();
            File targetFile = new File(targetDirectory + sep + fileBO.getFileName());
            try {
                FileUtils.copyFile(sourceFile, targetFile);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    Collections.sort(folders);
    return folders;
}

---

From source file:org.intermine.web.search.ClassAttributes.java

private static void writeObjectToDB(ObjectStore os, String key, Object object)
        throws IOException, SQLException {
    LOG.info("Saving stream to database...");
    Database db = ((ObjectStoreInterMineImpl) os).getDatabase();
    LargeObjectOutputStream streamOut = MetadataManager.storeLargeBinary(db, key);

    GZIPOutputStream gzipStream = new GZIPOutputStream(new BufferedOutputStream(streamOut));
    ObjectOutputStream objectStream = new ObjectOutputStream(gzipStream);

    LOG.info("GZipping and serializing object...");
    objectStream.writeObject(object);/*from   w  w w . jav a  2s.co m*/

    objectStream.flush();
    gzipStream.finish();
    gzipStream.flush();

    streamOut.close();
}

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From source file:edu.caltechUcla.sselCassel.projects.jMarkets.frontdesk.web.data.SessionBean.java

/**
 * Connect to the JMarkets server and start the session defined by the given SessionDef object.
 *  Return the session Id of the created session
 *///ww  w  .j  a  va2s  .co m
private int executeSession(String path, String name, SessionDef session) {
    try {
        URL servlet = new URL(path + "/servlet/ServletReceiver");
        Request req = new Request(Request.SERVER_INIT_REQUEST);

        req.addIntInfo("numClients", numSubjects);
        req.addIntInfo("updateProtocol", JMConstants.HTTP_UPDATE_PROTOCOL);
        req.addIntInfo("updateTime", 100);
        req.addStringInfo("name", name);
        req.addInfo("session", session);

        URLConnection servletConnection = servlet.openConnection();

        servletConnection.setDoInput(true);
        servletConnection.setDoOutput(true);
        servletConnection.setUseCaches(false);
        servletConnection.setDefaultUseCaches(false);
        servletConnection.setRequestProperty("Content-Type", "application/octet-stream");

        ObjectOutputStream outputToServlet = new ObjectOutputStream(servletConnection.getOutputStream());

        outputToServlet.writeObject(req);
        outputToServlet.flush();
        outputToServlet.close();

        ObjectInputStream inputFromServlet = new ObjectInputStream(servletConnection.getInputStream());
        Response res = (Response) inputFromServlet.readObject();
        int sessionId = res.getIntInfo("sessionId");

        inputFromServlet.close();

        return sessionId;

    } catch (IOException e) {
        e.printStackTrace();
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    return -1;
}

---

From source file:org.apache.catalina.cluster.session.DeltaManager.java

private byte[] unloadDeltaRequest(DeltaRequest deltaRequest) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(bos);
    deltaRequest.writeExternal(oos);//from  w ww.  jav  a 2 s.  c om
    oos.flush();
    oos.close();
    return bos.toByteArray();
}

---

From source file:org.wso2.carbon.cluster.coordinator.rdbms.RDBMSCommunicationBusContextImpl.java

@Override
public void insertRemovedNodeDetails(String removedMember, String groupId, List<String> clusterNodes,
        Map<String, Object> removedPropertiesMap) throws ClusterCoordinationException {
    Connection connection = null;
    PreparedStatement storeRemovedMembersPreparedStatement = null;
    String task = "Storing removed member: " + removedMember + " in group " + groupId;
    try {//from w  w  w . jav a2 s. com
        connection = getConnection();
        storeRemovedMembersPreparedStatement = connection
                .prepareStatement(RDBMSConstants.PS_INSERT_REMOVED_MEMBER_DETAILS);
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
        objectOutputStream.writeObject(removedPropertiesMap);
        objectOutputStream.flush();
        byteArrayOutputStream.flush();
        objectOutputStream.close();
        byteArrayOutputStream.close();
        byte[] propertiesMapAsBytes = byteArrayOutputStream.toByteArray();
        // ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(propertiesMapAsBytes);
        for (String clusterNode : clusterNodes) {
            storeRemovedMembersPreparedStatement.setString(1, clusterNode);
            storeRemovedMembersPreparedStatement.setString(2, groupId);
            storeRemovedMembersPreparedStatement.setString(3, removedMember);
            storeRemovedMembersPreparedStatement.setBinaryStream(4,
                    new ByteArrayInputStream(propertiesMapAsBytes));
            storeRemovedMembersPreparedStatement.addBatch();
        }
        storeRemovedMembersPreparedStatement.executeBatch();

        connection.commit();
    } catch (SQLException e) {
        rollback(connection, task);
        throw new ClusterCoordinationException(
                "Error storing removed member: " + removedMember + " in group " + groupId, e);
    } catch (IOException e) {
        throw new ClusterCoordinationException("Error while inserting removed node data", e);
    } finally {
        close(storeRemovedMembersPreparedStatement, task);
        close(connection, task);
    }
}

---

From source file:org.ejbca.core.ejb.approval.ApprovalSessionBean.java

@Override
public void setApprovals(ApprovalData approvalData, final Collection<Approval> approvals) {
    try {/*from   w ww .j  ava2 s. co  m*/
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final ObjectOutputStream oos = new ObjectOutputStream(baos);
        final int size = approvals.size();
        oos.writeInt(size);
        final Iterator<Approval> iter = approvals.iterator();
        while (iter.hasNext()) {
            final Approval next = iter.next();
            oos.writeObject(next);
        }
        oos.flush();
        approvalData.setApprovaldata(new String(Base64.encode(baos.toByteArray(), false)));
    } catch (IOException e) {
        log.error("Error building approvals.", e);
        throw new RuntimeException(e);
    }
}

---

From source file:com.octo.captcha.engine.bufferedengine.buffer.DiskCaptchaBuffer.java

/**
 * Writes the Index to disk on shutdown <p/>The index consists of the elements Map and the freeSpace List <p/>Note
 * that the cache is locked for the entire time that the index is being written
 *///from  ww  w.  j  av a2 s .c om
private synchronized void writeIndex() throws IOException {

    ObjectOutputStream objectOutputStream = null;
    try {
        FileOutputStream fout = new FileOutputStream(indexFile);
        objectOutputStream = new ObjectOutputStream(fout);
        objectOutputStream.writeObject(diskElements);
        objectOutputStream.writeObject(freeSpace);
    } finally {
        if (objectOutputStream != null) {
            objectOutputStream.flush();
            objectOutputStream.close();
        }

    }
}

---

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