Example usage for java.io ObjectOutputStream close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closes the stream.

Usage

From source file:RSATest.java

public static void main(String[] args) {
    try {//from   ww w.  j a  v  a2 s.  c om
        if (args[0].equals("-genkey")) {
            KeyPairGenerator pairgen = KeyPairGenerator.getInstance("RSA");
            SecureRandom random = new SecureRandom();
            pairgen.initialize(KEYSIZE, random);
            KeyPair keyPair = pairgen.generateKeyPair();
            ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(args[1]));
            out.writeObject(keyPair.getPublic());
            out.close();
            out = new ObjectOutputStream(new FileOutputStream(args[2]));
            out.writeObject(keyPair.getPrivate());
            out.close();
        } else if (args[0].equals("-encrypt")) {
            KeyGenerator keygen = KeyGenerator.getInstance("AES");
            SecureRandom random = new SecureRandom();
            keygen.init(random);
            SecretKey key = keygen.generateKey();

            // wrap with RSA public key
            ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
            Key publicKey = (Key) keyIn.readObject();
            keyIn.close();

            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.WRAP_MODE, publicKey);
            byte[] wrappedKey = cipher.wrap(key);
            DataOutputStream out = new DataOutputStream(new FileOutputStream(args[2]));
            out.writeInt(wrappedKey.length);
            out.write(wrappedKey);

            InputStream in = new FileInputStream(args[1]);
            cipher = Cipher.getInstance("AES");
            cipher.init(Cipher.ENCRYPT_MODE, key);
            crypt(in, out, cipher);
            in.close();
            out.close();
        } else {
            DataInputStream in = new DataInputStream(new FileInputStream(args[1]));
            int length = in.readInt();
            byte[] wrappedKey = new byte[length];
            in.read(wrappedKey, 0, length);

            // unwrap with RSA private key
            ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
            Key privateKey = (Key) keyIn.readObject();
            keyIn.close();

            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.UNWRAP_MODE, privateKey);
            Key key = cipher.unwrap(wrappedKey, "AES", Cipher.SECRET_KEY);

            OutputStream out = new FileOutputStream(args[2]);
            cipher = Cipher.getInstance("AES");
            cipher.init(Cipher.DECRYPT_MODE, key);

            crypt(in, out, cipher);
            in.close();
            out.close();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } catch (GeneralSecurityException e) {
        e.printStackTrace();
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
}

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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  . ja v  a2s  .co  m

    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();

}

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From source file:com.textocat.textokit.morph.opencorpora.resource.XmlDictionaryPSP.java

public static void main(String[] args) throws Exception {
    XmlDictionaryPSP cfg = new XmlDictionaryPSP();
    new JCommander(cfg, args);

    MorphDictionaryImpl dict = new MorphDictionaryImpl();
    DictionaryExtension ext = cfg.dictExtensionClass.newInstance();
    FileInputStream fis = FileUtils.openInputStream(cfg.dictXmlFile);
    try {/*from w w w . j  a  v a  2 s. c  om*/
        new XmlDictionaryParser(dict, ext, fis).run();
    } finally {
        IOUtils.closeQuietly(fis);
    }

    System.out.println("Preparing to serialization...");
    long timeBefore = currentTimeMillis();
    OutputStream fout = new BufferedOutputStream(FileUtils.openOutputStream(cfg.outputJarFile), 8192 * 8);
    Manifest manifest = new Manifest();
    manifest.getMainAttributes().putValue(Attributes.Name.MANIFEST_VERSION.toString(), "1.0");
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_VERSION,
            dict.getVersion());
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_REVISION,
            dict.getRevision());
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_VARIANT,
            cfg.variant);
    String dictEntryName = String.format(
            OpencorporaMorphDictionaryAPI.FILENAME_PATTERN_OPENCORPORA_SERIALIZED_DICT, dict.getVersion(),
            dict.getRevision(), cfg.variant);
    JarOutputStream jarOut = new JarOutputStream(fout, manifest);
    jarOut.putNextEntry(new ZipEntry(dictEntryName));
    ObjectOutputStream serOut = new ObjectOutputStream(jarOut);
    try {
        serOut.writeObject(dict.getGramModel());
        serOut.writeObject(dict);
    } finally {
        serOut.flush();
        jarOut.closeEntry();
        serOut.close();
    }
    System.out.println(String.format("Serialization finished in %s ms.\nOutput size: %s bytes",
            currentTimeMillis() - timeBefore, cfg.outputJarFile.length()));
}

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From source file:com.artofsolving.jodconverter.XmlDocumentFormatRegistry.java

/**
 * Prints out a document-formats.xml from the {@link DefaultDocumentFormatRegistry}
 *//*from  w w w  .  j  av a2 s.  co  m*/
public static void main(String[] args) throws IOException {
    DefaultDocumentFormatRegistry registry = new DefaultDocumentFormatRegistry();
    XStream xstream = createXStream();
    ObjectOutputStream outputStream = xstream.createObjectOutputStream(new OutputStreamWriter(System.out),
            "document-formats");
    for (Iterator iterator = registry.getDocumentFormats().iterator(); iterator.hasNext();) {
        outputStream.writeObject(iterator.next());
    }
    outputStream.close();
}

---

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
    System.out.println("\n\nobj1:\n" + obj1 + "\n\nobj2:\n" + obj2 + "\n\nobj3:\n" + obj3);
    objectOut.close(); // Close the output stream

}

---

From source file:Main.java

public static void main(String args[]) throws IOException, ClassNotFoundException {
    File file = new File("test.txt");
    FileOutputStream outFile = new FileOutputStream(file);
    ObjectOutputStream outStream = new ObjectOutputStream(outFile);
    TestClass1 t1 = new TestClass1(true, 9, 'A', 0.0001, "java");
    TestClass2 t2 = new TestClass2();
    String t3 = "This is a test.";
    Date t4 = new Date();
    outStream.writeObject(t1);/*from  w ww. j  ava 2s . c  o m*/
    outStream.writeObject(t2);
    outStream.writeObject(t3);
    outStream.writeObject(t4);
    outStream.close();
    outFile.close();
    FileInputStream inFile = new FileInputStream(file);
    ObjectInputStream inStream = new ObjectInputStream(inFile);
    System.out.println(inStream.readObject());
    System.out.println(inStream.readObject());
    System.out.println(inStream.readObject());
    System.out.println(inStream.readObject());
    inStream.close();
    inFile.close();
    file.delete();
}

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From source file:Person.java

public static void main(String[] args) throws Exception {
    ObjectOutputStream outputStream = new ObjectOutputStream(new FileOutputStream("yourFile.dat"));

    Person person = new Person();
    person.setFirstName("A");
    person.setLastName("B");
    person.setAge(38);/*ww  w . j a va 2s . c o m*/
    outputStream.writeObject(person);

    person = new Person();
    person.setFirstName("C");
    person.setLastName("D");
    person.setAge(22);

    outputStream.writeUnshared(person);

    outputStream.close();
}

---

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    kg.init(new SecureRandom());
    SecretKey key = kg.generateKey();
    SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
    Class spec = Class.forName("javax.crypto.spec.DESKeySpec");
    DESKeySpec ks = (DESKeySpec) skf.getKeySpec(key, spec);
    ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("keyfile"));
    oos.writeObject(ks.getKey());/*from www  .  j  a  v a 2 s .  c om*/

    Cipher c = Cipher.getInstance("DES/CFB8/NoPadding");
    c.init(Cipher.ENCRYPT_MODE, key);
    CipherOutputStream cos = new CipherOutputStream(new FileOutputStream("ciphertext"), c);
    PrintWriter pw = new PrintWriter(new OutputStreamWriter(cos));
    pw.println("Stand and unfold yourself");
    pw.close();
    oos.writeObject(c.getIV());
    oos.close();
}

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From source file:ComplexCompany.java

public static void main(String args[]) throws Exception {
    ServerSocket servSocket;// ww  w  . ja va  2  s  . c  o  m
    Socket fromClientSocket;
    int cTosPortNumber = 1777;
    String str;
    ComplexCompany comp;

    servSocket = new ServerSocket(cTosPortNumber);
    System.out.println("Waiting for a connection on " + cTosPortNumber);

    fromClientSocket = servSocket.accept();

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

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

    while ((comp = (ComplexCompany) ois.readObject()) != null) {
        comp.printCompanyObject();

        oos.writeObject("bye bye");
        break;
    }
    oos.close();

    fromClientSocket.close();
}

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From source file:ObjectStreams.java

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

    ObjectOutputStream out = null;
    try {//from  w w w . j av  a  2 s.c  om
        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();
    }
}

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