Example usage for java.io ByteArrayOutputStream ByteArrayOutputStream

Introduction

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

Prototype

public ByteArrayOutputStream()

Source Link

Document

Creates a new ByteArrayOutputStream .

Usage

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    createPdf("HelloLetter.pdf", "field", "value");
    RandomAccessFileOrArray letter = new RandomAccessFileOrArray("HelloLetter.pdf");
    PdfReader reader = new PdfReader(letter, null);
    ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
    PdfStamper stamper = new PdfStamper(reader, baos1);
    AcroFields form = stamper.getAcroFields();
    form.renameField("field", "field1");
    stamper.close();/*w  w  w.  ja v a 2  s  .c om*/
    reader = new PdfReader(letter, null);
    ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
    stamper = new PdfStamper(reader, baos2);
    form = stamper.getAcroFields();
    form.renameField("field", "field2");
    stamper.close();

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    KeyPair pair = generateRSAKeyPair();
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    bOut.write(generateV1Certificate(pair).getEncoded());
    bOut.close();// w ww .jav a 2s.  c  o m
    InputStream in = new ByteArrayInputStream(bOut.toByteArray());
    CertificateFactory fact = CertificateFactory.getInstance("X.509", "BC");
    X509Certificate x509Cert = (X509Certificate) fact.generateCertificate(in);
    System.out.println("issuer: " + x509Cert.getIssuerX500Principal());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Security.addProvider(new BouncyCastleProvider());
    byte[] input = "www.java2s.com".getBytes();
    System.out.println("input     : " + new String(input));
    MessageDigest hash = MessageDigest.getInstance("SHA1");

    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(input);
    DigestInputStream digestInputStream = new DigestInputStream(byteArrayInputStream, hash);
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

    int ch;/*w  ww . ja  v a2 s.c  o  m*/
    while ((ch = digestInputStream.read()) >= 0) {
        byteArrayOutputStream.write(ch);
    }

    byte[] newInput = byteArrayOutputStream.toByteArray();
    System.out.println("in digest : " + new String(digestInputStream.getMessageDigest().digest()));

    byteArrayOutputStream = new ByteArrayOutputStream();
    DigestOutputStream digestOutputStream = new DigestOutputStream(byteArrayOutputStream, hash);
    digestOutputStream.write(newInput);
    digestOutputStream.close();

    System.out.println("out digest: " + new String(digestOutputStream.getMessageDigest().digest()));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    createPdf("HelloLetter.pdf", "field", "value");
    RandomAccessFileOrArray letter = new RandomAccessFileOrArray("HelloLetter.pdf");
    PdfReader reader = new PdfReader(letter, null);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PdfStamper stamper = new PdfStamper(reader, baos);
    AcroFields form = stamper.getAcroFields();
    form.setField("field", "World,");
    stamper.setFormFlattening(true);/*from  w  w w . jav  a 2  s  .c  o  m*/
    stamper.close();

    reader = new PdfReader(baos.toByteArray());
    Document document = new Document(reader.getPageSizeWithRotation(1));
    PdfCopy writer = new PdfCopy(document, new FileOutputStream("HelloWorldStampCopy.pdf"));
    document.open();
    writer.addPage(writer.getImportedPage(reader, 1));

    reader = new PdfReader(letter, null);
    baos = new ByteArrayOutputStream();
    stamper = new PdfStamper(reader, baos);
    form = stamper.getAcroFields();
    form.setField("field", "People,");
    stamper.setFormFlattening(true);
    stamper.close();

    reader = new PdfReader(baos.toByteArray());
    writer.addPage(writer.getImportedPage(reader, 1));
    document.close();
}

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);/*from  w ww.j  a  v  a 2 s  .  com*/
    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);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

    KeyPair pair = generateRSAKeyPair();

    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    bOut.write(generateV1Certificate(pair).getEncoded());
    bOut.close();//from w w  w  .  j a  v a2s.  c  om

    InputStream in = new ByteArrayInputStream(bOut.toByteArray());

    CertificateFactory fact = CertificateFactory.getInstance("X.509", "BC");

    X509Certificate x509Cert;
    Collection collection = new ArrayList();

    while ((x509Cert = (X509Certificate) fact.generateCertificate(in)) != null) {
        collection.add(x509Cert);
    }

    Iterator it = collection.iterator();
    while (it.hasNext()) {
        System.out.println("version: " + ((X509Certificate) it.next()).getVersion());
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement();

    st.executeUpdate("create table images (Id int, b BLOB);");

    File file = new File("myimage.gif");
    FileInputStream fis = new FileInputStream(file);
    PreparedStatement ps = conn.prepareStatement("insert into images values (?,?)");
    ps.setString(1, "10");
    ps.setBinaryStream(2, fis);/* w  ww.j a va  2s.  co m*/
    ps.executeUpdate();

    ResultSet rset = st.executeQuery("select b from images");
    InputStream stream = rset.getBinaryStream(1);
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    int a1 = stream.read();
    while (a1 >= 0) {
        output.write((char) a1);
        a1 = stream.read();
    }
    Image myImage = Toolkit.getDefaultToolkit().createImage(output.toByteArray());
    output.close();

    ps.close();

    fis.close();
    st.close();
    conn.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Transformer serializer = SAXTransformerFactory.newInstance().newTransformer();
    serializer.setOutputProperty(OutputKeys.INDENT, "yes");
    serializer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
    serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
    serializer.setOutputProperty("{http://xml.customer.org/xslt}indent-amount", "2");
    Source xmlSource = new SAXSource(new InputSource(
            new ByteArrayInputStream("<a><b><c/><d>text D</d><e value='0'/></b></a>".getBytes())));
    StreamResult res = new StreamResult(new ByteArrayOutputStream());
    serializer.transform(xmlSource, res);
    System.out.println(new String(((ByteArrayOutputStream) res.getOutputStream()).toByteArray()));
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();// w ww .j  a va2 s  .  c o  m
    document.add(new Paragraph("Hello World"));
    document.close();
    PdfReader reader = new PdfReader("2.pdf");
    System.out.println("Tampered? " + reader.isTampered());
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("2.pdf"));
    HashMap info = reader.getInfo();
    info.put("Subject", "subject");
    info.put("Author", "author");
    info.put("Keywords", "keywords");
    info.put("Title", "title");
    info.put("Creator", "creator");
    stamper.setMoreInfo(info);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XmpWriter xmp = new XmpWriter(baos, info);
    xmp.close();
    stamper.setXmpMetadata(baos.toByteArray());
    stamper.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("test.xml");
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document oldDoc = builder.parse(is);
    Node oldRoot = oldDoc.getDocumentElement();
    Document newDoc = builder.newDocument();
    Element newRoot = newDoc.createElement("newroot");
    newDoc.appendChild(newRoot);/*  w w  w  .  jav a  2 s .c o m*/
    newRoot.appendChild(newDoc.importNode(oldRoot, true));

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DOMSource domSource = new DOMSource(newDoc);
    Writer writer = new OutputStreamWriter(out);
    StreamResult result = new StreamResult(writer);
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.transform(domSource, result);
    writer.flush();

    InputStream isNewXML = new ByteArrayInputStream(out.toByteArray());
}