Example usage for java.io ObjectInputStream close

List of usage examples for java.io ObjectInputStream close

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Introduction

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

Prototype

public void close() throws IOException

Source Link

Document

Closes the input stream.

Usage

From source file:ObjectReader.java

public static void main(String[] arguments) {
    try {//from  www  .j a v  a  2 s  .co m
        FileInputStream fi = new FileInputStream("message.obj");
        ObjectInputStream oi = new ObjectInputStream(fi);
        Message mess = (Message) oi.readObject();
        System.out.println("Message:\n");
        System.out.println("From: " + mess.from);
        System.out.println("To: " + mess.to);
        System.out.println("Date: " + mess.when + "\n");
        for (int i = 0; i < mess.lineCount; i++)
            System.out.println(mess.text[i]);
        oi.close();
    } catch (Exception e) {
        System.out.println("Error " + e.toString());
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Junk obj1 = new Junk("A");
    Junk obj2 = new Junk("B");
    Junk obj3 = new Junk("V");
    ObjectOutputStream objectOut = new ObjectOutputStream(
            new BufferedOutputStream(new FileOutputStream("C:/JunkObjects.bin")));

    objectOut.writeObject(obj1); // Write object
    objectOut.writeObject(obj2); // Write object
    objectOut.writeObject(obj3); // Write object
    objectOut.close(); // Close the output stream

    ObjectInputStream objectIn = null;
    int objectCount = 0;
    Junk object = null;/*w  w w .  j  a  va2  s . c  om*/

    objectIn = new ObjectInputStream(new BufferedInputStream(new FileInputStream("C:/JunkObjects.bin")));

    // Read from the stream until we hit the end
    while (objectCount < 3) {
        object = (Junk) objectIn.readObject();
        objectCount++;
        System.out.println(object);
    }

    objectIn.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {

    ObjectOutputStream out = new ObjectOutputStream(
            new BufferedOutputStream(new FileOutputStream("file.data")));

    out.writeObject(Calendar.getInstance());
    out.writeObject(new BigDecimal("123.123"));
    out.writeInt(1);/* ww w . ja va  2  s  . c o  m*/
    out.writeUTF("tutorial");
    out.close();

    ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(new FileInputStream("file.data")));

    BigDecimal price;
    int unit;
    String desc;

    Calendar date = (Calendar) in.readObject();
    System.out.println(date);

    price = (BigDecimal) in.readObject();
    unit = in.readInt();
    desc = in.readUTF();
    System.out.println(unit);
    System.out.println(desc);
    System.out.println(price);
    in.close();
}

From source file:Data.java

public static void main(String[] args) {
    Data data = new Data(1);
    try {//from   w  w w . ja  v a 2 s  . co m
        ObjectOutputStream objectOut = new ObjectOutputStream(
                new BufferedOutputStream(new FileOutputStream("C:/test.bin")));
        objectOut.writeObject(data);
        System.out.println("1st Object written has value: " + data.getValue());
        data.setValue(2);
        objectOut.writeObject(data);
        System.out.println("2nd Object written has value: " + data.getValue());
        data.setValue(3);
        objectOut.writeObject(data);
        System.out.println("3rd Object written has value: " + data.getValue());
        objectOut.close();
    } catch (IOException e) {
        e.printStackTrace(System.err);
    }
    try {
        ObjectInputStream objectIn = new ObjectInputStream(
                new BufferedInputStream(new FileInputStream("C:/test.bin")));
        Data data1 = (Data) objectIn.readObject();
        Data data2 = (Data) objectIn.readObject();
        Data data3 = (Data) objectIn.readObject();
        System.out.println(data1.equals(data2));
        System.out.println(data2.equals(data3));
        System.out.println(data1.getValue());
        System.out.println(data2.getValue());
        System.out.println(data3.getValue());
        objectIn.close();
    } catch (Exception e) {
        e.printStackTrace(System.err);
    }
}

From source file:DataIOTest2.java

public static void main(String[] args) throws IOException {

    // write the data out
    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("invoice1.txt"));

    double[] prices = { 19.99, 9.99, 15.99, 3.99, 4.99 };
    int[] units = { 12, 8, 13, 29, 50 };
    String[] descs = { "Java T-shirt", "Java Mug", "Duke Juggling Dolls", "Java Pin", "Java Key Chain" };

    for (int i = 0; i < prices.length; i++) {
        out.writeDouble(prices[i]);/*from ww  w  . j av a2 s . co m*/
        out.writeChar('\t');
        out.writeInt(units[i]);
        out.writeChar('\t');
        out.writeChars(descs[i]);
        out.writeChar('\n');
    }
    out.close();

    // read it in again
    ObjectInputStream in = new ObjectInputStream(new FileInputStream("invoice1.txt"));

    double price;
    int unit;
    String desc;
    double total = 0.0;

    try {
        while (true) {
            price = in.readDouble();
            in.readChar(); // throws out the tab
            unit = in.readInt();
            in.readChar(); // throws out the tab
            desc = in.readLine();
            System.out.println("You've ordered " + unit + " units of " + desc + " at $" + price);
            total = total + unit * price;
        }
    } catch (EOFException e) {
    }
    System.out.println("For a TOTAL of: $" + total);
    in.close();
}

From source file:com.frostvoid.trekwar.server.TrekwarServer.java

public static void main(String[] args) {
    // load language
    try {//from   w  w w  .  j  a  v a  2 s.c  om
        lang = new Language(Language.ENGLISH);
    } catch (IOException ioe) {
        System.err.println("FATAL ERROR: Unable to load language file!");
        System.exit(1);
    }

    System.out.println(lang.get("trekwar_server") + " " + VERSION);
    System.out.println("==============================================".substring(0,
            lang.get("trekwar_server").length() + 1 + VERSION.length()));

    // Handle parameters
    Options options = new Options();
    options.addOption(OptionBuilder.withArgName("file").withLongOpt("galaxy").hasArg()
            .withDescription("the galaxy file to load").create("g")); //"g", "galaxy", true, "the galaxy file to load");
    options.addOption(OptionBuilder.withArgName("port number").withLongOpt("port").hasArg()
            .withDescription("the port number to bind to (default 8472)").create("p"));
    options.addOption(OptionBuilder.withArgName("number").withLongOpt("save-interval").hasArg()
            .withDescription("how often (in turns) to save the galaxy to disk (default: 5)").create("s"));
    options.addOption(OptionBuilder.withArgName("log level").withLongOpt("log").hasArg()
            .withDescription("sets the log level: ALL, FINEST, FINER, FINE, CONFIG, INFO, WARNING, SEVERE, OFF")
            .create("l"));
    options.addOption("h", "help", false, "prints this help message");

    CommandLineParser cliParser = new BasicParser();

    try {
        CommandLine cmd = cliParser.parse(options, args);
        String portStr = cmd.getOptionValue("p");
        String galaxyFileStr = cmd.getOptionValue("g");
        String saveIntervalStr = cmd.getOptionValue("s");
        String logLevelStr = cmd.getOptionValue("l");

        if (cmd.hasOption("h")) {
            HelpFormatter help = new HelpFormatter();
            help.printHelp("TrekwarServer", options);
            System.exit(0);
        }

        if (cmd.hasOption("g") && galaxyFileStr != null) {
            galaxyFileName = galaxyFileStr;
        } else {
            throw new ParseException("galaxy file not specified");
        }

        if (cmd.hasOption("p") && portStr != null) {
            port = Integer.parseInt(portStr);
            if (port < 1 || port > 65535) {
                throw new NumberFormatException(lang.get("port_number_out_of_range"));
            }
        } else {
            port = 8472;
        }

        if (cmd.hasOption("s") && saveIntervalStr != null) {
            saveInterval = Integer.parseInt(saveIntervalStr);
            if (saveInterval < 1 || saveInterval > 100) {
                throw new NumberFormatException("Save Interval out of range (1-100)");
            }
        } else {
            saveInterval = 5;
        }

        if (cmd.hasOption("l") && logLevelStr != null) {
            if (logLevelStr.equalsIgnoreCase("finest")) {
                LOG.setLevel(Level.FINEST);
            } else if (logLevelStr.equalsIgnoreCase("finer")) {
                LOG.setLevel(Level.FINER);
            } else if (logLevelStr.equalsIgnoreCase("fine")) {
                LOG.setLevel(Level.FINE);
            } else if (logLevelStr.equalsIgnoreCase("config")) {
                LOG.setLevel(Level.CONFIG);
            } else if (logLevelStr.equalsIgnoreCase("info")) {
                LOG.setLevel(Level.INFO);
            } else if (logLevelStr.equalsIgnoreCase("warning")) {
                LOG.setLevel(Level.WARNING);
            } else if (logLevelStr.equalsIgnoreCase("severe")) {
                LOG.setLevel(Level.SEVERE);
            } else if (logLevelStr.equalsIgnoreCase("off")) {
                LOG.setLevel(Level.OFF);
            } else if (logLevelStr.equalsIgnoreCase("all")) {
                LOG.setLevel(Level.ALL);
            } else {
                System.err.println("ERROR: invalid log level: " + logLevelStr);
                System.err.println("Run again with -h flag to see valid log level values");
                System.exit(1);
            }
        } else {
            LOG.setLevel(Level.INFO);
        }
        // INIT LOGGING
        try {
            LOG.setUseParentHandlers(false);
            initLogging();
        } catch (IOException ex) {
            System.err.println("Unable to initialize logging to file");
            System.err.println(ex);
            System.exit(1);
        }

    } catch (Exception ex) {
        System.err.println("ERROR: " + ex.getMessage());
        System.err.println("use -h for help");
        System.exit(1);
    }

    LOG.log(Level.INFO, "Trekwar2 server " + VERSION + " starting up");

    // LOAD GALAXY
    File galaxyFile = new File(galaxyFileName);
    if (galaxyFile.exists()) {
        try {
            long timer = System.currentTimeMillis();
            LOG.log(Level.INFO, "Loading galaxy file {0}", galaxyFileName);
            ObjectInputStream ois = new ObjectInputStream(new FileInputStream(galaxyFile));
            galaxy = (Galaxy) ois.readObject();
            timer = System.currentTimeMillis() - timer;
            LOG.log(Level.INFO, "Galaxy file loaded in {0} ms", timer);
            ois.close();
        } catch (IOException ioe) {
            LOG.log(Level.SEVERE, "IO error while trying to load galaxy file", ioe);
        } catch (ClassNotFoundException cnfe) {
            LOG.log(Level.SEVERE, "Unable to find class while loading galaxy", cnfe);
        }
    } else {
        System.err.println("Error: file " + galaxyFileName + " not found");
        System.exit(1);
    }

    // if turn == 0 (start of game), execute first turn to update fog of war.
    if (galaxy.getCurrentTurn() == 0) {
        TurnExecutor.executeTurn(galaxy);
    }

    LOG.log(Level.INFO, "Current turn  : {0}", galaxy.getCurrentTurn());
    LOG.log(Level.INFO, "Turn speed    : {0} seconds", galaxy.getTurnSpeed() / 1000);
    LOG.log(Level.INFO, "Save Interval : {0}", saveInterval);
    LOG.log(Level.INFO, "Users / max   : {0} / {1}",
            new Object[] { galaxy.getUserCount(), galaxy.getMaxUsers() });

    // START SERVER
    try {
        server = new ServerSocket(port);
        LOG.log(Level.INFO, "Server listening on port {0}", port);
    } catch (BindException be) {
        LOG.log(Level.SEVERE, "Error: Unable to bind to port {0}", port);
        System.err.println(be);
        System.exit(1);
    } catch (IOException ioe) {
        LOG.log(Level.SEVERE, "Error: IO error while binding to port {0}", port);
        System.err.println(ioe);
        System.exit(1);
    }

    galaxy.startup();

    Thread timerThread = new Thread(new Runnable() {

        @Override
        @SuppressWarnings("SleepWhileInLoop")
        public void run() {
            while (true) {
                try {
                    Thread.sleep(1000);
                    // && galaxy.getLoggedInUsers().size() > 0 will make server pause when nobody is logged in (TESTING)
                    if (System.currentTimeMillis() > galaxy.nextTurnDate) {
                        StringBuffer loggedInUsers = new StringBuffer();
                        for (User u : galaxy.getLoggedInUsers()) {
                            loggedInUsers.append(u.getUsername()).append(", ");
                        }

                        long time = TurnExecutor.executeTurn(galaxy);
                        LOG.log(Level.INFO, "Turn {0} executed in {1} ms",
                                new Object[] { galaxy.getCurrentTurn(), time });
                        LOG.log(Level.INFO, "Logged in users: " + loggedInUsers.toString());
                        LOG.log(Level.INFO,
                                "====================================================================================");

                        if (galaxy.getCurrentTurn() % saveInterval == 0) {
                            saveGalaxy();
                        }

                        galaxy.lastTurnDate = System.currentTimeMillis();
                        galaxy.nextTurnDate = galaxy.lastTurnDate + galaxy.turnSpeed;
                    }

                } catch (InterruptedException e) {
                    LOG.log(Level.SEVERE, "Error in main server loop, interrupted", e);
                }
            }
        }
    });
    timerThread.start();

    // ACCEPT CONNECTIONS AND DELEGATE TO CLIENT SESSIONS
    while (true) {
        Socket clientConnection;
        try {
            clientConnection = server.accept();
            ClientSession c = new ClientSession(clientConnection, galaxy);
            Thread t = new Thread(c);
            t.start();
        } catch (IOException ex) {
            LOG.log(Level.SEVERE, "IO Exception while trying to handle incoming client connection", ex);
        }
    }
}

From source file:com.couragelabs.logging.LogAppenderTestFixture.java

/**
 * Use this method to test the appender. Run this first, then run
 * GlobalContextSocketAppender::main/*from  www. jav a2  s . co m*/
 *
 * @param args Program arguments. None are needed.
 * @throws java.lang.Exception if things go wrong
 */
@SuppressWarnings("InfiniteLoopStatement")
public static void main(String[] args) throws Exception {
    ServerSocket serverSocket = new ServerSocket(PORT);

    System.out.println("Starting listen loop.");
    while (true) {
        try {
            final Socket clientSocket = serverSocket.accept();
            System.out.println("Received client connection.");
            new Thread() {
                @Override
                public void run() {
                    ObjectInputStream i = null;
                    try {
                        i = new ObjectInputStream(clientSocket.getInputStream());
                        while (true) {
                            Object received = i.readObject();
                            System.out.println(ToStringBuilder.reflectionToString(received,
                                    ToStringStyle.SHORT_PREFIX_STYLE));
                            Thread.sleep(1000);
                        }
                    } catch (EOFException e) {
                        System.out.println("Client closed connection.");
                    } catch (Throwable t) {
                        t.printStackTrace();
                    } finally {
                        if (i != null) {
                            try {
                                i.close();
                            } catch (Throwable t) {
                                t.printStackTrace();
                            }
                        }
                    }
                }
            }.start();
            Thread.sleep(1000);
        } catch (Throwable t) {
            t.printStackTrace();
        }
        System.out.println("Next...");
    }

}

From source file:ObjectStreams.java

public static void main(String[] args) throws IOException, ClassNotFoundException {

    ObjectOutputStream out = null;
    try {//from   w w  w . j a v  a  2  s  .c  o m
        out = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(dataFile)));

        out.writeObject(Calendar.getInstance());
        for (int i = 0; i < prices.length; i++) {
            out.writeObject(prices[i]);
            out.writeInt(units[i]);
            out.writeUTF(descs[i]);
        }
    } finally {
        out.close();
    }

    ObjectInputStream in = null;
    try {
        in = new ObjectInputStream(new BufferedInputStream(new FileInputStream(dataFile)));

        Calendar date = null;
        BigDecimal price;
        int unit;
        String desc;
        BigDecimal total = new BigDecimal(0);

        date = (Calendar) in.readObject();

        System.out.format("On %tA, %<tB %<te, %<tY:%n", date);

        try {
            while (true) {
                price = (BigDecimal) in.readObject();
                unit = in.readInt();
                desc = in.readUTF();
                System.out.format("You ordered %d units of %s at $%.2f%n", unit, desc, price);
                total = total.add(price.multiply(new BigDecimal(unit)));
            }
        } catch (EOFException e) {
        }
        System.out.format("For a TOTAL of: $%.2f%n", total);
    } finally {
        in.close();
    }
}

From source file:ComplexCompany.java

public static void main(String args[]) throws Exception {
    Socket socket1;// ww  w .j a  v  a  2s. c o m
    int portNumber = 1777;
    String str = "";

    socket1 = new Socket(InetAddress.getLocalHost(), portNumber);

    ObjectInputStream ois = new ObjectInputStream(socket1.getInputStream());

    ObjectOutputStream oos = new ObjectOutputStream(socket1.getOutputStream());

    ComplexCompany comp = new ComplexCompany("A");
    ComplexEmployee emp0 = new ComplexEmployee("B", 1000);
    comp.addPresident(emp0);

    ComplexDepartment sales = new ComplexDepartment("C");
    ComplexEmployee emp1 = new ComplexEmployee("D", 1200);
    sales.addManager(emp1);
    comp.addDepartment(sales);

    ComplexDepartment accounting = new ComplexDepartment("E");
    ComplexEmployee emp2 = new ComplexEmployee("F", 1230);
    accounting.addManager(emp2);
    comp.addDepartment(accounting);

    ComplexDepartment maintenance = new ComplexDepartment("Maintenance");
    ComplexEmployee emp3 = new ComplexEmployee("Greg Hladlick", 1020);
    maintenance.addManager(emp3);
    comp.addDepartment(maintenance);

    oos.writeObject(comp);

    while ((str = (String) ois.readObject()) != null) {
        System.out.println(str);
        oos.writeObject("bye");

        if (str.equals("bye"))
            break;
    }

    ois.close();
    oos.close();
    socket1.close();
}

From source file:net.lightbody.bmp.proxy.jetty.http.HttpServer.java

/** Construct server from command line arguments.
 * @param args /*from   www. ja va2 s . com*/
 */
public static void main(String[] args) {
    if (args.length == 0 || args.length > 2) {
        System.err.println("\nUsage - java net.lightbody.bmp.proxy.jetty.http.HttpServer [<addr>:]<port>");
        System.err.println("\nUsage - java net.lightbody.bmp.proxy.jetty.http.HttpServer -r [savefile]");
        System.err.println("  Serves files from '.' directory");
        System.err.println("  Dump handler for not found requests");
        System.err.println("  Default port is 8080");
        System.exit(1);
    }

    try {

        if (args.length == 1) {
            // Create the server
            HttpServer server = new HttpServer();

            // Default is no virtual host
            String host = null;
            HttpContext context = server.getContext(host, "/");
            context.setResourceBase(".");
            context.addHandler(new ResourceHandler());
            context.addHandler(new DumpHandler());
            context.addHandler(new NotFoundHandler());

            InetAddrPort address = new InetAddrPort(args[0]);
            server.addListener(address);

            server.start();
        } else {
            Resource resource = Resource.newResource(args[1]);
            ObjectInputStream in = new ObjectInputStream(resource.getInputStream());
            HttpServer server = (HttpServer) in.readObject();
            in.close();
            server.start();
        }

    } catch (Exception e) {
        log.warn(LogSupport.EXCEPTION, e);
    }
}