Example usage for java.io ObjectInputStream readObject

Introduction

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

Prototype

public final Object readObject() throws IOException, ClassNotFoundException 

Source Link

Document

Read an object from the ObjectInputStream.

Usage

From source file:Shape.java

public static void main(String[] args) throws Exception {
    List shapeTypes, shapes;/*from w  w  w.  ja  va 2  s .  co m*/
    if (args.length == 0) {
        shapeTypes = new ArrayList();
        shapes = new ArrayList();

        shapeTypes.add(Circle.class);
        shapeTypes.add(Square.class);
        shapeTypes.add(Line.class);

        shapes.add(new Square(4, 3, 200));
        shapes.add(new Circle(1, 2, 100));
        shapes.add(new Line(1, 2, 100));

        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("CADState.out"));
        out.writeObject(shapeTypes);
        Line.serializeStaticState(out);
        out.writeObject(shapes);
    } else {
        ObjectInputStream in = new ObjectInputStream(new FileInputStream(args[0]));
        shapeTypes = (List) in.readObject();
        Line.deserializeStaticState(in);
        shapes = (List) in.readObject();
    }

    System.out.println(shapes);
}

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From source file:AESTest.java

public static void main(String[] args) {
    try {//from w w  w.  j  av a  2 s .  c om
        if (args[0].equals("-genkey")) {
            KeyGenerator keygen = KeyGenerator.getInstance("AES");
            SecureRandom random = new SecureRandom();
            keygen.init(random);
            SecretKey key = keygen.generateKey();
            ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(args[1]));
            out.writeObject(key);
            out.close();
        } else {
            int mode;
            if (args[0].equals("-encrypt"))
                mode = Cipher.ENCRYPT_MODE;
            else
                mode = Cipher.DECRYPT_MODE;

            ObjectInputStream keyIn = new ObjectInputStream(new FileInputStream(args[3]));
            Key key = (Key) keyIn.readObject();
            keyIn.close();

            InputStream in = new FileInputStream(args[1]);
            OutputStream out = new FileOutputStream(args[2]);
            Cipher cipher = Cipher.getInstance("AES");
            cipher.init(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();
    }
}

---

From source file:org.openiot.gsn.http.rest.RemoteWrapperHttpClient.java

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

    DefaultHttpClient httpclient = new DefaultHttpClient();
    final String url = "select * from localsystemtime where timed > 10/10";

    HttpGet httpget = new HttpGet(
            "http://localhost:22001/streaming/" + URLEncoder.encode(url, "UTF-8") + "/12345");
    HttpResponse response = httpclient.execute(httpget);

    ObjectInputStream out = (StreamElement4Rest.getXstream())
            .createObjectInputStream((response.getEntity().getContent()));
    DataField[] structure = (DataField[]) out.readObject();
    StreamElement4Rest se = null;// ww  w  .j a v a 2 s  .com
    try {
        while ((se = (StreamElement4Rest) out.readObject()) != null) {
            System.out.println(se.toStreamElement());
        }
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }

}

---

From source file:Data.java

public static void main(String[] args) {
    Data data = new Data(1);
    try {/*from   w w w  . j a v  a 2 s .c  o  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:com.nabla.project.application.tool.runner.ServiceRunner.java

/**
 * DOCUMENT ME!/* w w w . j  a va2  s. c o m*/
 * 
 * @param args DOCUMENT ME!
 * @throws Exception DOCUMENT ME!
 * @throws RuntimeException DOCUMENT ME!
 */
public static void main(String args[]) throws Exception {

    ObjectInputStream ois = new ObjectInputStream(System.in);
    Object methodArgs[] = (Object[]) ois.readObject();

    if (args.length < 3) {

        throw new RuntimeException(
                "Error : usage : java com.nabla.project.application.tool.runner.ServiceRunner configFileName beanName methodName");

    }

    String configFileName = args[0];
    String beanName = args[1];
    String methodName = args[2];
    ApplicationContext context = new ClassPathXmlApplicationContext(new String[] { configFileName });
    Object service = context.getBean(beanName);
    Method serviceMethod = null;
    Method methods[] = service.getClass().getMethods();

    for (Method method : methods) {

        if (method.getName().equals(methodName)) {

            serviceMethod = method;

        }

    }

    if (serviceMethod == null) {

        throw new RuntimeException("Method " + methodName + " not found in class " + service.getClass());

    }

    serviceMethod.invoke(service, methodArgs);

}

---

From source file:edu.msu.cme.rdp.graph.utils.BloomFilterStats.java

public static void main(String[] args) throws Exception {
    if (args.length != 1) {
        System.err.println("USAGE: BloomFilterStats <bloom_filter>");
        System.exit(1);/*from w w w .  java2 s  .  c om*/
    }

    File bloomFile = new File(args[0]);

    ObjectInputStream ois = ois = new ObjectInputStream(
            new BufferedInputStream(new FileInputStream(bloomFile)));
    BloomFilter filter = (BloomFilter) ois.readObject();
    ois.close();

    printStats(filter, System.out);
}

---

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);/*www . ja v a 2s .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:ObjectStreamTest.java

public static void main(String[] args) {
    Employee harry = new Employee("Harry Hacker", 50000, 1989, 10, 1);
    Manager carl = new Manager("Carl Cracker", 80000, 1987, 12, 15);
    carl.setSecretary(harry);/*from  ww  w .j  a va 2 s. c om*/
    Manager tony = new Manager("Tony Tester", 40000, 1990, 3, 15);
    tony.setSecretary(harry);

    Employee[] staff = new Employee[3];

    staff[0] = carl;
    staff[1] = harry;
    staff[2] = tony;

    try {
        // save all employee records to the file employee.dat
        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("employee.dat"));
        out.writeObject(staff);
        out.close();

        // retrieve all records into a new array
        ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.dat"));
        Employee[] newStaff = (Employee[]) in.readObject();
        in.close();

        // raise secretary's salary
        newStaff[1].raiseSalary(10);

        // print the newly read employee records
        for (Employee e : newStaff)
            System.out.println(e);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:edu.msu.cme.rdp.graph.sandbox.BloomFilterInterrogator.java

public static void main(String[] args) throws Exception {
    if (args.length != 1) {
        System.err.println("USAGE: BloomFilterStats <bloom_filter>");
        System.exit(1);/*  ww w  .j a  v a 2  s. com*/
    }

    File bloomFile = new File(args[0]);

    ObjectInputStream ois = ois = new ObjectInputStream(
            new BufferedInputStream(new FileInputStream(bloomFile)));
    BloomFilter filter = (BloomFilter) ois.readObject();
    ois.close();

    printStats(filter, System.out);

    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
    String line;
    CodonWalker walker = null;
    while ((line = reader.readLine()) != null) {
        char[] kmer = line.toCharArray();
        System.out.print(line + "\t");
        try {
            walker = filter.new RightCodonFacade(kmer);
            walker.jumpTo(kmer);
            System.out.print("present");
        } catch (Exception e) {
            System.out.print("not present\t" + e.getMessage());
        }
        System.out.println();
    }
}

---

From source file:ID.java

public static void main(String[] args) throws IOException, ClassNotFoundException {
    ID id = new ID();
    List employees = new ArrayList();
    employees.add(new Employee("A", id));
    employees.add(new Employee("B", id));
    employees.add(new Employee("C", id));
    System.out.println("employees: " + employees);
    ByteArrayOutputStream buf1 = new ByteArrayOutputStream();
    ObjectOutputStream o1 = new ObjectOutputStream(buf1);
    o1.writeObject(employees);// www . j av  a 2 s .c o  m
    o1.writeObject(employees);

    ByteArrayOutputStream buf2 = new ByteArrayOutputStream();
    ObjectOutputStream o2 = new ObjectOutputStream(buf2);
    o2.writeObject(employees);

    ObjectInputStream in1 = new ObjectInputStream(new ByteArrayInputStream(buf1.toByteArray()));
    ObjectInputStream in2 = new ObjectInputStream(new ByteArrayInputStream(buf2.toByteArray()));
    List emp1 = (List) in1.readObject(), emp2 = (List) in1.readObject(), emp3 = (List) in2.readObject();
    System.out.println("emp1: " + emp1);
    System.out.println("emp2: " + emp2);
    System.out.println("emp3: " + emp3);
}

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