Example usage for java.io ObjectInputStream ObjectInputStream

Introduction

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

Prototype

public ObjectInputStream(InputStream in) throws IOException 

Source Link

Document

Creates an ObjectInputStream that reads from the specified InputStream.

Usage

From source file:co.rsk.peg.RepositoryBlockStoreTest.java

@Test
public void test() throws Exception {
    //        This Is how I produced RepositoryBlockStore_data.ser. I had a bitcoind in regtest with 613 blocks + genesis block
    //        NetworkParameters params = RegTestParams.get();
    //        Context context = new Context(params);
    //        Wallet wallet = new Wallet(context);
    //        BlockStore store = new SPVBlockStore(params, new File("spvBlockstore"));
    //        AbstractBlockChain chain = new BlockChain(context, wallet, store);
    //        PeerGroup peerGroup = new PeerGroup(context, chain);
    //        peerGroup.start();
    //        final DownloadProgressTracker listener = new DownloadProgressTracker();
    //        peerGroup.startBlockChainDownload(listener);
    //        listener.await();
    //        peerGroup.stop();
    //        StoredBlock storedBlock = chain.getChainHead();
    //        FileOutputStream fos = new FileOutputStream("RepositoryBlockStore_data.ser");
    //        ObjectOutputStream oos = new ObjectOutputStream(fos);
    //        for (int i = 0; i < 614; i++) {
    //            Triple<byte[], BigInteger , Integer> tripleStoredBlock = new ImmutableTriple<>(storedBlock.getHeader().bitcoinSerialize(), storedBlock.getChainWork(), storedBlock.getHeight());
    //            oos.writeObject(tripleStoredBlock);
    //            storedBlock = store.get(storedBlock.getHeader().getPrevBlockHash());
    //        }/*from  w  ww . ja  v  a2 s  . co m*/
    //        oos.close();

    // Read original store
    InputStream fileInputStream = ClassLoader.getSystemResourceAsStream("peg/RepositoryBlockStore_data.ser");
    ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
    Repository repository = new RepositoryImplForTesting();
    RepositoryBlockStore store = new RepositoryBlockStore(repository, PrecompiledContracts.BRIDGE_ADDR);
    for (int i = 0; i < 614; i++) {
        Triple<byte[], BigInteger, Integer> tripleStoredBlock = (Triple<byte[], BigInteger, Integer>) objectInputStream
                .readObject();
        BtcBlock header = RegTestParams.get().getDefaultSerializer().makeBlock(tripleStoredBlock.getLeft());
        StoredBlock storedBlock = new StoredBlock(header, tripleStoredBlock.getMiddle(),
                tripleStoredBlock.getRight());
        if (i == 0) {
            store.setChainHead(storedBlock);
        }
        store.put(storedBlock);
    }

    // Create a new instance of the store
    RepositoryBlockStore store2 = new RepositoryBlockStore(repository, PrecompiledContracts.BRIDGE_ADDR);

    // Check a specific block that used to fail when we had a bug
    assertEquals(store.get(Sha256Hash.wrap("373941fe83961cf70e181e468abc5f9f7cc440c711c3d06948fa66f3912ed27a")),
            store2.get(Sha256Hash.wrap("373941fe83961cf70e181e468abc5f9f7cc440c711c3d06948fa66f3912ed27a")));

    //Check new instance content is identical to the original one
    StoredBlock storedBlock = store.getChainHead();
    StoredBlock storedBlock2 = store2.getChainHead();
    int headHeight = storedBlock.getHeight();
    for (int i = 0; i < headHeight; i++) {
        assertNotNull(storedBlock);
        assertEquals(storedBlock, storedBlock2);
        Sha256Hash prevBlockHash = storedBlock.getHeader().getPrevBlockHash();
        storedBlock = store.get(prevBlockHash);
        storedBlock2 = store2.get(prevBlockHash);
    }
}

---

From source file:com.googlecode.DownloadCache.java

private void loadIndex() throws Exception {
    if (this.indexFile.isFile()) {
        FileInputStream input = new FileInputStream(this.indexFile);
        ObjectInputStream deserialize = new ObjectInputStream(input);
        this.index = (Map<String, CachedFileEntry>) deserialize.readObject();
        deserialize.close();//from ww w  .  j a  v a 2 s . c om
    } else {
        this.index = new HashMap<String, CachedFileEntry>();
    }

}

---

From source file:com.gsma.mobileconnect.discovery.DiscoveryResponseTest.java

private DiscoveryResponse roundTripSerialize(DiscoveryResponse in) throws IOException, ClassNotFoundException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutput output = new ObjectOutputStream(baos);

    output.writeObject(in);/*from w  ww. j a  v a 2s .  c om*/

    output.close();

    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ObjectInput input = new ObjectInputStream(bais);

    DiscoveryResponse out = (DiscoveryResponse) input.readObject();

    input.close();

    return out;
}

---

From source file:corner.util.crypto.Cryptor.java

/**
 * ?IO?.IO?,./*ww w .  ja  v  a  2s.com*/
 * @param inputFileName ????.
 * @param keyFile ??.
 * @return ?IO?.
 */
public static InputStream dencryptFileIO(String inputFileName, String keyFile) {
    if (keyFile == null) {
        try {
            return new FileInputStream(new File(inputFileName));
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        }
    }
    SecretKey key = null;

    ObjectInputStream keyis;
    try {
        keyis = new ObjectInputStream(new FileInputStream(keyFile));
        key = (SecretKey) keyis.readObject();

        keyis.close();
    } catch (FileNotFoundException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    }

    //keyCipher
    Cipher cipher = null;

    try {
        //,
        cipher = Cipher.getInstance("DES");
        // ?
        cipher.init(Cipher.DECRYPT_MODE, key);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (NoSuchPaddingException e) {
        throw new RuntimeException(e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException(e);
    }

    File file = new File(inputFileName);

    try {

        //?
        CipherInputStream in = new CipherInputStream(new BufferedInputStream(new FileInputStream(file)),
                cipher);
        return in;

    } catch (Exception e) {
        throw new RuntimeException(e);

    }

}

---

From source file:net.schweerelos.parrot.ui.NodeWrapperPersistentLayoutImpl.java

@SuppressWarnings("unchecked")
@Override//from  w  ww. ja  v a  2 s.  c om
public synchronized void restore(String fileName) throws IOException, ClassNotFoundException {
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fileName));
    uriToNodeLocation = (Map<String, Point>) ois.readObject();
    ois.close();

    initializeLocations();

    locked = true;
    fireStateChanged();
}

---

From source file:org.blanco.techmun.android.cproviders.MesasFetcher.java

private Mesas tryToLoadFromCache(Context context) {
    try {//from   w  ww  . ja va2  s  .c om
        FileInputStream mesasFIS = context.openFileInput("mesas.df");
        ObjectInputStream mesasOIS = new ObjectInputStream(mesasFIS);
        Mesas result = (Mesas) mesasOIS.readObject();
        mesasOIS.close();
        return result;
    } catch (IOException e) {
        Log.e("tachmun",
                "Error opening cache file for mesas in content provider. " + "No cache will be restored", e);
        return null;
    } catch (ClassNotFoundException e) {
        Log.e("tachmun", "Error in cache file for mesas in content provider. "
                + "Something is there but is not a Mesas object. Cache no restored", e);
        return null;
    }
}

---

From source file:org.blanco.techmun.android.cproviders.EventosFetcher.java

private Eventos tryToLoadFromCache(Context context, long mesaId) {
    try {/*from ww w .  j a v  a2 s. c  o m*/
        FileInputStream mesasFIS = context.openFileInput("eventos_" + mesaId + ".df");
        ObjectInputStream mesasOIS = new ObjectInputStream(mesasFIS);
        Eventos result = (Eventos) mesasOIS.readObject();
        mesasOIS.close();

        return result;
    } catch (IOException e) {
        Log.e("tachmun",
                "Error opening cache file for mesas in content provider. " + "No cache will be restored", e);
        return null;
    } catch (ClassNotFoundException e) {
        Log.e("tachmun", "Error in cache file for mesas in content provider. "
                + "Something is there but is not a Mesas object. Cache no restored", e);
        return null;
    }
}

---

From source file:com.g3net.tool.ObjectUtils.java

/**
 * //ww w.ja va2s .  c  om
 * @param data   ??
 * @return      ???
 * @throws Exception
 */
public static Object deSerializeObject(byte[] data) throws Exception {
    ByteArrayInputStream bis = null;
    ObjectInputStream ois = null;
    if (data == null || data.length == 0) {
        return null;
    }
    try {
        bis = new ByteArrayInputStream(data);
        ois = new ObjectInputStream(bis);
        return ois.readObject();
    } finally {
        if (ois != null) {
            ois.close();
        }
    }
}

---

From source file:net.sf.dynamicreports.googlecharts.test.AbstractJasperTest.java

private JasperReportBuilder serializableTest(JasperReportBuilder report)
        throws IOException, ClassNotFoundException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(bos);
    oos.writeObject(report);//from   www. j  a v  a  2s. c o m
    oos.flush();
    oos.close();

    InputStream stream = new ByteArrayInputStream(bos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(stream);
    return (JasperReportBuilder) ois.readObject();
}

---

From source file:com.google.u2f.gaedemo.impl.DataStoreImpl.java

@Override
public EnrollSessionData getEnrollSessionData(String sessionId) {
    SecretKey key = new SecretKeySpec(SecretKeys.get().sessionEncryptionKey(), "AES");

    byte[] serialized = Base64.decodeBase64(sessionId);
    ByteArrayInputStream inner = new ByteArrayInputStream(serialized);
    try {//from   ww w. ja v  a  2 s .com
        ObjectInputStream in = new ObjectInputStream(inner);

        SealedObject sealed = (SealedObject) in.readObject();
        return (EnrollSessionData) sealed.getObject(key);
    } catch (InvalidKeyException | ClassNotFoundException | NoSuchAlgorithmException | IOException e) {
        throw new RuntimeException(e);
    }
}

---

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