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:misc.TestUtils.java

@SuppressWarnings("unchecked")
public static <T extends Serializable> T cloneSerializable(T obj) {
    ObjectOutputStream out = null;
    ObjectInputStream in = null;//w  w w .java  2  s  .c om

    try {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        out = new ObjectOutputStream(bout);

        out.writeObject(obj);
        out.close();

        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
        in = new ObjectInputStream(bin);
        Object copy = in.readObject();

        in.close();

        return (T) copy;
    } catch (Exception ex) {
        ex.printStackTrace();
    } finally {
        try {
            if (out != null) {
                out.close();
            }

            if (in != null) {
                in.close();
            }
        } catch (IOException ignore) {
        }
    }

    return null;
}

From source file:SerialIntList.java

/**
 * Use object serialization to make a "deep clone" of the object o. This
 * method serializes o and all objects it refers to, and then deserializes
 * that graph of objects, which means that everything is copied. This differs
 * from the clone() method of an object which is usually implemented to
 * produce a "shallow" clone that copies references to other objects, instead
 * of copying all referenced objects./*from   ww w  . j  ava  2  s . c om*/
 */
static Object deepclone(final Serializable o) throws IOException, ClassNotFoundException {
    // Create a connected pair of "piped" streams.
    // We'll write bytes to one, and them from the other one.
    final PipedOutputStream pipeout = new PipedOutputStream();
    PipedInputStream pipein = new PipedInputStream(pipeout);

    // Now define an independent thread to serialize the object and write
    // its bytes to the PipedOutputStream
    Thread writer = new Thread() {
        public void run() {
            ObjectOutputStream out = null;
            try {
                out = new ObjectOutputStream(pipeout);
                out.writeObject(o);
            } catch (IOException e) {
            } finally {
                try {
                    out.close();
                } catch (Exception e) {
                }
            }
        }
    };
    writer.start(); // Make the thread start serializing and writing

    // Meanwhile, in this thread, read and deserialize from the piped
    // input stream. The resulting object is a deep clone of the original.
    ObjectInputStream in = new ObjectInputStream(pipein);
    return in.readObject();
}

From source file:Main.java

public static byte[] getBytes(Serializable obj) {
    byte[] bytes = null;
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream oos = null;
    try {/*from ww  w . j  a  v a 2s .  co m*/
        oos = new ObjectOutputStream(bos);
        oos.writeObject(obj);
        oos.flush();
        bytes = bos.toByteArray();
    } catch (IOException ex) {
        ex.printStackTrace();
    } finally {
        if (oos != null) {
            try {
                oos.close();
                bos.close();
                bos.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    }

    return bytes;
}

From source file:com.facebook.infrastructure.utils.FBUtilities.java

public static byte[] serializeToStream(Object o) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] bytes = ArrayUtils.EMPTY_BYTE_ARRAY;
    try {/*from   w ww  .  j  ava2s.  com*/
        ObjectOutputStream oos = new ObjectOutputStream(bos);
        oos.writeObject(o);
        oos.flush();
        bytes = bos.toByteArray();
        oos.close();
        bos.close();
    } catch (IOException e) {
        LogUtil.getLogger(FBUtilities.class.getName()).info(LogUtil.throwableToString(e));
    }
    return bytes;
}

From source file:net.sourceforge.jaulp.io.SerializedObjectUtils.java

/**
 * Writes the given object to the given File.
 *
 * @param obj/*w  w w .jav a 2 s .  c  om*/
 *            The object to write to the File.
 * @param file
 *            In this file will be the object saved.
 * @return true if the object was written to the file otherwise false.
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static boolean writeSerializedObjectToFile(final Object obj, final File file) throws IOException {
    boolean written = true;
    FileOutputStream fos = null;
    ObjectOutputStream oos = null;
    try {
        fos = new FileOutputStream(file);
        oos = new ObjectOutputStream(fos);
        oos.writeObject(obj);
        oos.flush();
        oos.close();
    } finally {
        StreamUtils.closeOutputStream(oos);
        StreamUtils.closeOutputStream(fos);
    }
    return written;
}

From source file:com.ligadata.EncryptUtils.EncryptionUtil.java

/**
 * Generate key which contains a pair of private and public key using 1024
 * bytes. Store the set of keys in given files publicKeyFile,privateKeyFile
 * @param algorithm/* w ww . j  a  v a  2  s  . co m*/
 *          : algorithm used
 * @param publicKeyFile
 *          :The file containing public key
 * @param privateKeyFile
 *          :The file containing private key
 */
public static void generateSampleKeys(String algorithm, String publicKeyFile, String privateKeyFile) {
    try {
        if (areKeysPresent(publicKeyFile, privateKeyFile)) {
            return;
        }
        final KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algorithm);
        keyGen.initialize(1024);
        final KeyPair key = keyGen.generateKeyPair();

        File privateKeyFD = new File(privateKeyFile);
        File publicKeyFD = new File(publicKeyFile);

        // Create files to store public and private key
        if (privateKeyFD.getParentFile() != null) {
            privateKeyFD.getParentFile().mkdirs();
        }
        privateKeyFD.createNewFile();

        if (publicKeyFD.getParentFile() != null) {
            publicKeyFD.getParentFile().mkdirs();
        }
        publicKeyFD.createNewFile();

        // Saving the Public key in a file
        ObjectOutputStream publicKeyOS = new ObjectOutputStream(new FileOutputStream(publicKeyFD));
        publicKeyOS.writeObject(key.getPublic());
        publicKeyOS.close();

        // Saving the Private key in a file
        ObjectOutputStream privateKeyOS = new ObjectOutputStream(new FileOutputStream(privateKeyFD));
        privateKeyOS.writeObject(key.getPrivate());
        privateKeyOS.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:de.alpharogroup.io.SerializedObjectExtensions.java

/**
 * Writes the given object to the given File.
 *
 * @param obj//w w w  .j a  v a  2 s. c o m
 *            The object to write to the File.
 * @param file
 *            In this file will be the object saved.
 * @return true if the object was written to the file otherwise false.
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static boolean writeSerializedObjectToFile(final Object obj, final File file) throws IOException {
    final boolean written = true;
    FileOutputStream fos = null;
    ObjectOutputStream oos = null;
    try {
        fos = new FileOutputStream(file);
        oos = new ObjectOutputStream(fos);
        oos.writeObject(obj);
        oos.flush();
        oos.close();
    } finally {
        StreamExtensions.closeOutputStream(oos);
        StreamExtensions.closeOutputStream(fos);
    }
    return written;
}

From source file:de.alpharogroup.io.SerializedObjectUtils.java

/**
 * Writes the given object to the given File.
 *
 * @param obj//ww w  .  jav  a  2  s. c  o m
 *            The object to write to the File.
 * @param file
 *            In this file will be the object saved.
 * @return true if the object was written to the file otherwise false.
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static boolean writeSerializedObjectToFile(final Object obj, final File file) throws IOException {
    final boolean written = true;
    FileOutputStream fos = null;
    ObjectOutputStream oos = null;
    try {
        fos = new FileOutputStream(file);
        oos = new ObjectOutputStream(fos);
        oos.writeObject(obj);
        oos.flush();
        oos.close();
    } finally {
        StreamUtils.closeOutputStream(oos);
        StreamUtils.closeOutputStream(fos);
    }
    return written;
}

From source file:com.couchbase.client.java.transcoder.TranscoderUtils.java

/**
 * Serializes the input into a ByteBuf.// w ww. j a va 2  s.c o  m
 *
 * @param serializable the object to serialize.
 * @return the serialized object.
 * @throws Exception if something goes wrong during serialization.
 */
public static ByteBuf serialize(final Serializable serializable) throws Exception {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ;
    ObjectOutputStream os = new ObjectOutputStream(bos);
    os.writeObject(serializable);

    byte[] serialized = bos.toByteArray();
    os.close();
    bos.close();
    return Unpooled.buffer().writeBytes(serialized);
}

From source file:Main.java

public static String objectSerializableToString(Serializable object) {
    ByteArrayOutputStream baos = null;
    ObjectOutputStream os = null;
    try {//from   w w w. j av a  2  s .c  o  m
        if (object != null) {
            baos = new ByteArrayOutputStream();
            os = new ObjectOutputStream(baos);
            os.writeObject(object);
            os.flush();
            baos.flush();
            return baos.toString("UTF-8");
        }
    } catch (Throwable e) {
    } finally {
        try {
            if (os != null) {
                os.close();
            }
        } catch (Throwable e2) {
        }

        try {
            if (baos != null) {
                baos.close();
            }
        } catch (Throwable e2) {
        }
    }
    return null;
}