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:com.limegroup.gnutella.licenses.LicenseCache.java

/**
  * Loads values from cache file, if available
  *///from   w  w  w  .j  a va 2s. c  o m
private void deserialize() {
    ObjectInputStream ois = null;
    try {
        if (!CACHE_FILE.exists()) {
            // finally-block will initialize maps
            return;
        }
        ois = new ObjectInputStream(new BufferedInputStream(new FileInputStream(CACHE_FILE)));
        Object o = ois.readObject();
        if (o != null)
            licenses = GenericsUtils.scanForMap(o, URI.class, License.class, GenericsUtils.ScanMode.REMOVE);
        o = ois.readObject();
        if (o != null)
            data = GenericsUtils.scanForMap(o, Object.class, Object.class, GenericsUtils.ScanMode.REMOVE);
        removeOldEntries();
    } catch (Throwable t) {
        LOG.error("Can't read licenses", t);
    } finally {
        IOUtils.close(ois);

        if (licenses == null)
            licenses = new HashMap<URI, License>();
        if (data == null)
            data = new HashMap<Object, Object>();
    }
}

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From source file:com.machinepublishers.jbrowserdriver.HttpCache.java

/**
 * {@inheritDoc}/*  w  w w. j av a2 s. c om*/
 */
@Override
public HttpCacheEntry getEntry(String key) throws IOException {
    try (Lock lock = new Lock(new File(cacheDir, DigestUtils.sha1Hex(key)), true, false)) {
        BufferedInputStream bufferIn = new BufferedInputStream(lock.streamIn);
        try (ObjectInputStream objectIn = new ObjectInputStream(bufferIn)) {
            return (HttpCacheEntry) objectIn.readObject();
        } catch (Throwable t) {
            LogsServer.instance().exception(t);
        }
    } catch (FileNotFoundException e) {
        return null;
    }
    return null;
}

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From source file:net.sf.farrago.server.FarragoServletCommandSink.java

private void handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
        throws ServletException {
    ObjectInputStream ois = null;
    ObjectOutputStream oos = null;

    try {//from   w w w. j a va  2s  .c om
        // Get the method to execute
        String method = httpServletRequest.getHeader(ServletCommandSinkIdentifier.METHOD_IDENTIFIER);

        if (method != null) {
            ois = new ObjectInputStream(httpServletRequest.getInputStream());
            // And initialize the output
            OutputStream os = httpServletResponse.getOutputStream();
            oos = new ObjectOutputStream(os);
            Object objectToReturn = null;

            try {
                // Some command to process ?
                if (method.equals(ServletCommandSinkIdentifier.PROCESS_COMMAND)) {
                    // Read parameter objects
                    Long connuid = (Long) ois.readObject();
                    Long uid = (Long) ois.readObject();
                    Command cmd = (Command) ois.readObject();
                    CallingContext ctx = (CallingContext) ois.readObject();
                    // Delegate execution to the CommandProcessor
                    objectToReturn = processor.process(connuid, uid, cmd, ctx);
                } else if (method.equals(ServletCommandSinkIdentifier.CONNECT_COMMAND)) {
                    String url = ois.readUTF();
                    Properties props = (Properties) ois.readObject();
                    Properties clientInfo = (Properties) ois.readObject();
                    CallingContext ctx = (CallingContext) ois.readObject();

                    ConnectionConfiguration connectionConfiguration = VJdbcConfiguration.singleton()
                            .getConnection(url);

                    if (connectionConfiguration != null) {
                        Connection conn = connectionConfiguration.create(props);
                        objectToReturn = processor.registerConnection(conn, connectionConfiguration, clientInfo,
                                ctx);
                    } else {
                        objectToReturn = new SQLException("VJDBC-Connection " + url + " not found");
                    }
                }
            } catch (Throwable t) {
                // Wrap any exception so that it can be transported back to
                // the client
                objectToReturn = SQLExceptionHelper.wrap(t);
            }

            // Write the result in the response buffer
            oos.writeObject(objectToReturn);
            oos.flush();

            httpServletResponse.flushBuffer();
        } else {
            // No VJDBC-Method ? Then we redirect the stupid browser user to
            // some information page :-)
            httpServletResponse.sendRedirect("index.html");
        }
    } catch (Exception e) {
        logger.error("Unexpected Exception", e);
        throw new ServletException(e);
    } finally {
        StreamCloser.close(ois);
        StreamCloser.close(oos);
    }
}

---

From source file:com.izforge.izpack.panels.target.TargetPanelHelper.java

/**
 * Determines if there is IzPack installation information at the specified path that is incompatible with the
 * current version of IzPack.//from  w w w .ja v  a2 s. c  o  m
 * <p/>
 * To be incompatible, the file {@link InstallData#INSTALLATION_INFORMATION} must exist in the supplied directory,
 * and not contain recognised {@link Pack} instances.
 *
 * @param dir the path to check
 * @param readInstallationInformation check .installationinformation file or skip it
 * @return {@code true} if there is incompatible installation information,
 *         {@code false} if there is no installation info, or it is compatible
 */
@SuppressWarnings("unchecked")
public static boolean isIncompatibleInstallation(String dir, Boolean readInstallationInformation) {
    boolean result = false;
    File file = new File(dir, InstallData.INSTALLATION_INFORMATION);
    if (file.exists() && readInstallationInformation) {
        FileInputStream input = null;
        ObjectInputStream objectInput = null;
        try {
            input = new FileInputStream(file);
            objectInput = new ObjectInputStream(input);
            List<Object> packs = (List<Object>) objectInput.readObject();
            for (Object pack : packs) {
                if (!(pack instanceof Pack)) {
                    return true;
                }
            }
        } catch (Throwable exception) {
            logger.log(Level.FINE,
                    "Installation information at path=" + file.getPath() + " failed to deserialize", exception);
            result = true;
        } finally {
            IOUtils.closeQuietly(objectInput);
            IOUtils.closeQuietly(input);
        }
    }

    return result;
}

---

From source file:com.ibm.watson.developer_cloud.professor_languo.ingestion.indexing.StackExchangeThreadSerializer.java

/**
 * reproduce the StackExchangeThread with the byte array
 * /*from   ww  w  .  j a va  2s.co  m*/
 * @param binCode - the byte array for that StackExchangeThread
 * @return the original StackExchangeThread before serialization
 * @throws IngestionException
 */
public static StackExchangeThread deserializeThreadFromBinArr(byte[] binCode) throws IngestionException {
    Object deserializedObj = null;
    ByteArrayInputStream binIn = new ByteArrayInputStream(binCode);
    try {
        ObjectInputStream in = new ObjectInputStream(binIn);
        deserializedObj = in.readObject();
        in.close();
        binIn.close();
    } catch (IOException | ClassNotFoundException e) {
        throw new IngestionException(e);
    }
    return (StackExchangeThread) deserializedObj;
}

---

From source file:de.tudarmstadt.ukp.experiments.argumentation.clustering.entropy.ClusterTopicMatrixGenerator.java

@Override
@SuppressWarnings("unchecked")
public void initialize(UimaContext context) throws ResourceInitializationException {
    super.initialize(context);

    try {//from   w  ww. ja  v  a 2 s .  co  m
        // load mapping debateURL -> topic distribution
        debateTopicMap = (Map<String, List<Double>>) new ObjectInputStream(
                new FileInputStream(debateTopicMapFile)).readObject();

        // load centroids
        centroids = (TreeMap<Integer, Vector>) new ObjectInputStream(new FileInputStream(centroidsFile))
                .readObject();

        // initialize matrix
        int numTopics = debateTopicMap.entrySet().iterator().next().getValue().size();
        clusterTopicMatrix = new DenseMatrix(centroids.size(), numTopics);
    } catch (IOException | ClassNotFoundException e) {
        throw new ResourceInitializationException(e);
    }
}

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From source file:fr.eoidb.util.ImageDownloader.java

@SuppressWarnings("unchecked")
public void loadImageCache(Context context) {
    if (BuildConfig.DEBUG)
        Log.v(LOG_TAG, "Loading image cache...");
    File cacheFile = new File(context.getCacheDir(), cacheFileName);

    if (cacheFile.exists() && cacheFile.length() > 0) {
        ObjectInputStream ois = null;
        try {//from  www. j  a  v a  2s.  co m
            HashMap<String, String> cacheDescription = new HashMap<String, String>();
            ois = new ObjectInputStream(new FileInputStream(cacheFile));
            cacheDescription = (HashMap<String, String>) ois.readObject();

            for (Entry<String, String> cacheDescEntry : cacheDescription.entrySet()) {
                loadSingleCacheFile(cacheDescEntry.getKey(), context);
            }
        } catch (StreamCorruptedException e) {
            Log.e(LOG_TAG, e.getMessage(), e);
        } catch (FileNotFoundException e) {
            Log.e(LOG_TAG, e.getMessage(), e);
        } catch (EOFException e) {
            //delete the corrupted cache file
            Log.w(LOG_TAG, "Deleting the corrupted cache file.", e);
            cacheFile.delete();
        } catch (IOException e) {
            Log.e(LOG_TAG, e.getMessage(), e);
        } catch (ClassNotFoundException e) {
            Log.e(LOG_TAG, e.getMessage(), e);
        } finally {
            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException e) {
                    Log.e(LOG_TAG, e.getMessage(), e);
                }
            }
        }
    }
}

---

From source file:com.tecapro.inventory.common.util.CommonUtil.java

/**
 * decodeBase64 serializeData into InfoValue object
 * @param serializeData/*from   w  w  w  .  j a v  a 2s  . c  o m*/
 * @param value
 * @return
 * @throws Exception
 */
public Object deserialize(byte[] serializeData) throws Exception {
    byte[] decodebytes = Base64.decodeBase64(serializeData);

    ObjectInputStream istream = null;
    ByteArrayInputStream byteStream = null;
    Object result = null;

    try {
        byteStream = new ByteArrayInputStream(decodebytes);
        istream = new ObjectInputStream(byteStream);
        result = istream.readObject();
    } finally {
        if (byteStream != null) {
            byteStream.close();
        }
        if (istream != null) {
            istream.close();
        }
    }
    return result;
}

---

From source file:com.joliciel.talismane.lexicon.LexiconDeserializer.java

public PosTaggerLexicon deserializeLexiconFile(File lexiconFile) {
    MONITOR.startTask("deserializeLexiconFile(File)");
    try {/*  w  ww .  j a v a  2s.c o  m*/
        LOG.debug("deserializing " + lexiconFile.getName());
        boolean isZip = false;
        if (lexiconFile.getName().endsWith(".zip"))
            isZip = true;

        PosTaggerLexicon lexicon = null;
        ZipInputStream zis = null;
        FileInputStream fis = null;
        ObjectInputStream in = null;

        try {
            fis = new FileInputStream(lexiconFile);
            if (isZip) {
                zis = new ZipInputStream(fis);
                lexicon = this.deserializeLexiconFile(zis);
            } else {
                in = new ObjectInputStream(fis);
                lexicon = (PosTaggerLexicon) in.readObject();
                in.close();
            }
        } catch (IOException ioe) {
            throw new RuntimeException(ioe);
        } catch (ClassNotFoundException cnfe) {
            throw new RuntimeException(cnfe);
        }

        return lexicon;
    } finally {
        MONITOR.endTask("deserializeLexiconFile(File)");
    }
}

---

From source file:io.smartspaces.scheduling.quartz.orientdb.internal.util.SerialUtils.java

private static Map<String, ?> stringMapFromBytes(byte[] bytes) throws IOException, ClassNotFoundException {
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    ObjectInputStream ois = new ObjectInputStream(bais);
    @SuppressWarnings("unchecked")
    Map<String, ?> map = (Map<String, ?>) ois.readObject();
    ois.close();/*w  w  w . j  av  a  2  s . c o m*/
    return map;
}

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