Example usage for java.io ObjectInputStream readObject

List of usage examples for java.io ObjectInputStream readObject

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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:de.tudarmstadt.ukp.dkpro.tc.mallet.util.MalletUtils.java

public static TransducerEvaluator runTestCRF(File testFile, File modelFile)
        throws FileNotFoundException, IOException, ClassNotFoundException {
    Reader testFileReader = null;
    InstanceList testData = null;/* w  ww  . j  a va 2s . c o m*/
    //testFileReader = new FileReader(testFile);
    testFileReader = new InputStreamReader(new GZIPInputStream(new FileInputStream(testFile)), "UTF-8");
    Pipe p = null;
    CRF crf = null;
    TransducerEvaluator eval = null;
    ObjectInputStream s = new ObjectInputStream(new FileInputStream(modelFile));
    crf = (CRF) s.readObject();
    s.close();
    p = crf.getInputPipe();
    p.setTargetProcessing(true);
    testData = new InstanceList(p);
    testData.addThruPipe(new LineGroupIterator(testFileReader, Pattern.compile("^\\s*$"), true));
    //   logger.info ("Number of predicates: "+p.getDataAlphabet().size());

    eval = new PerClassEvaluator(new InstanceList[] { testData }, new String[] { "Testing" });

    if (p.isTargetProcessing()) {
        Alphabet targets = p.getTargetAlphabet();
        StringBuffer buf = new StringBuffer("Labels:");
        for (int i = 0; i < targets.size(); i++) {
            buf.append(" ").append(targets.lookupObject(i).toString());
            //         logger.info(buf.toString());
        }
    }

    test(new NoopTransducerTrainer(crf), eval, testData);

    List<String> labels = ((PerClassEvaluator) eval).getLabelNames();
    List<Double> precisionValues = ((PerClassEvaluator) eval).getPrecisionValues();
    List<Double> recallValues = ((PerClassEvaluator) eval).getRecallValues();
    List<Double> f1Values = ((PerClassEvaluator) eval).getF1Values();

    printEvaluationMeasures(labels, precisionValues, recallValues, f1Values);

    return eval;
}

From source file:com.jk.util.JKObjectUtil.java

/**
 * Copy./*w  w w.  j a v  a  2  s  .  c  o m*/
 *
 * @param source
 *            the source
 * @return the object
 */
// /////////////////////////////////////////////////////////////////
public static Object copy(Object source) {
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(source);
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(bais);
        Object deepCopy = ois.readObject();
        return deepCopy;
    } catch (Exception e) {
        throw new JKException(e);
    }
}

From source file:edu.iu.daal_nn.NNDaalCollectiveMapper.java

private static NumericTable deserializeNumericTable(ByteArray byteArray)
        throws IOException, ClassNotFoundException {
    /* Create an input stream to deserialize the numeric table from the array */
    byte[] buffer = byteArray.get();
    ByteArrayInputStream inputByteStream = new ByteArrayInputStream(buffer);
    ObjectInputStream inputStream = new ObjectInputStream(inputByteStream);

    /* Create a numeric table object */
    NumericTable restoredDataTable = (NumericTable) inputStream.readObject();
    restoredDataTable.unpack(daal_Context);

    return restoredDataTable;
}

From source file:com.swingtech.commons.util.ClassUtil.java

public static Object deserializeObject(final byte[] bytes) {
    ObjectInputStream in = null;
    Object obj = null;//from   w  w  w.  jav a  2s.c  o m

    if (bytes == null) {
        return null;
    }

    try {
        in = new ObjectInputStream(new ByteArrayInputStream(bytes));
        obj = in.readObject();
        in.close();
    } catch (final Exception e) {
        throw new RuntimeException("Error trying to deserializeObject from this byte array:  " + bytes, e);
    }

    return obj;
}

From source file:SystemUtils.java

public static Object LoadObject(String filePath) throws IOException, ClassNotFoundException {
    Object target = null;// www .j a  v a  2 s  .  c  o m
    FileInputStream fis = null;
    ObjectInputStream ois = null;

    try {
        fis = new FileInputStream(filePath);
        ois = new ObjectInputStream(fis);
        target = ois.readObject();
    } finally {
        if (ois != null) {
            try {
                ois.close();
            } catch (Exception e) {
            }
            ois = null;
        }

        if (fis != null) {
            try {
                fis.close();
            } catch (Exception e) {
            }
            fis = null;
        }
    }

    return target;
}

From source file:com.gwtquickstarter.server.Deferred.java

/**
 * Deserialize an object from a byte array. Does not throw any exceptions;
 * instead, exceptions are logged and null is returned.
 *
 * @param bytesIn A byte array containing a previously serialized object.
 * @return An object instance, or null if an exception occurred.
 *///from w w w  .  j a  v  a2s  .  c  om
private static Object deserialize(byte[] bytesIn) {
    ObjectInputStream objectIn = null;
    try {
        if (isDevelopment()) { // workaround for issue #2097
            bytesIn = decodeBase64(bytesIn);
        }
        objectIn = new ObjectInputStream(new BufferedInputStream(new ByteArrayInputStream(bytesIn)));
        return objectIn.readObject();
    } catch (Exception e) {
        log.log(Level.SEVERE, "Error deserializing task", e);
        return null; // don't retry task
    } finally {
        try {
            if (objectIn != null) {
                objectIn.close();
            }
        } catch (IOException ignore) {
        }
    }
}

From source file:com.conwet.silbops.model.JSONvsRMIPerfT.java

public static void desJSONizeAdvs(ByteArrayInputStream bais, int nElements) {

    long start = 0, end = 0;

    try {//  w ww .  ja  v a  2s.  c  o  m

        ObjectInputStream inputStream = new ObjectInputStream(bais);
        JSONParser parser = new JSONParser();

        start = System.nanoTime();

        for (int i = 0; i < nElements; i++) {
            String jsonReceived = (String) inputStream.readObject();
            JSONArray jSONObject = (JSONArray) parser.parse(jsonReceived);

            Advertise.fromJSON(jSONObject);
        }

        end = System.nanoTime();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    long elapsed = end - start;
    long elapsedPerMessage = elapsed / nElements;
    System.out.println("   Elapsed Time " + nElements + " messages - DesJSONize: " + elapsed + " nanoseconds ("
            + elapsedPerMessage + " nanoseconds/msg)");

}

From source file:com.conwet.silbops.model.JSONvsRMIPerfT.java

public static void desJSONizeSubscriptions(ByteArrayInputStream bais, int nElements) {

    long start = 0, end = 0;

    try {//from ww w .j a v a2  s  .c  o m

        ObjectInputStream inputStream = new ObjectInputStream(bais);
        JSONParser parser = new JSONParser();

        start = System.nanoTime();

        for (int i = 0; i < nElements; i++) {
            String jsonReceived = (String) inputStream.readObject();
            JSONObject jSONObject = (JSONObject) parser.parse(jsonReceived);

            Subscription.fromJSON(jSONObject);
        }

        end = System.nanoTime();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    long elapsed = end - start;
    long elapsedPerMessage = elapsed / nElements;
    System.out.println("   Elapsed Time " + nElements + " messages - DesJSONize: " + elapsed + " nanoseconds ("
            + elapsedPerMessage + " nanoseconds/msg)");

}

From source file:com.conwet.silbops.model.JSONvsRMIPerfT.java

public static void desJSONizeNots(ByteArrayInputStream bais, int nElements) {

    long start = 0, end = 0;

    try {/*  ww w  .  j a  va2  s  .c  om*/

        ObjectInputStream inputStream = new ObjectInputStream(bais);
        JSONParser parser = new JSONParser();

        start = System.nanoTime();

        for (int i = 0; i < nElements; i++) {
            String jsonReceived = (String) inputStream.readObject();
            JSONObject jSONObject = (JSONObject) parser.parse(jsonReceived);

            Notification.fromJSON(jSONObject);
        }

        end = System.nanoTime();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    long elapsed = end - start;
    long elapsedPerMessage = elapsed / nElements;
    System.out.println("   Elapsed Time " + nElements + " messages - DesJSONize: " + elapsed + " nanoseconds ("
            + elapsedPerMessage + " nanoseconds/msg)");

}

From source file:com.newatlanta.appengine.taskqueue.Deferred.java

/**
 * Deserialize an object from a byte array. Does not throw any exceptions;
 * instead, exceptions are logged and null is returned.
 *
 * @param bytesIn A byte array containing a previously serialized object.
 * @return An object instance, or null if an exception occurred.
 *//* w  ww .  j  a v a  2  s.co m*/
private static Object deserialize(byte[] bytesIn) {
    ObjectInputStream objectIn = null;
    try {
        //             if ( isDevelopment() ) { // workaround for issue #2097
        bytesIn = decodeBase64(bytesIn);
        //             }
        objectIn = new ObjectInputStream(new BufferedInputStream(new ByteArrayInputStream(bytesIn)));
        return objectIn.readObject();
    } catch (Exception e) {
        log.log(Level.SEVERE, "Error deserializing task", e);
        return null; // don't retry task
    } finally {
        try {
            if (objectIn != null) {
                objectIn.close();
            }
        } catch (IOException ignore) {
        }
    }
}