Example usage for java.io ObjectOutputStream writeObject

List of usage examples for java.io ObjectOutputStream writeObject

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Introduction

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

Prototype

public final void writeObject(Object obj) throws IOException

Source Link

Document

Write the specified object to the ObjectOutputStream.

Usage

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

public static void sizeExternalizeSeveralWithType(String type, Externalizable[] objects) {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    try {/*from  w  w w. j ava2 s .  c o m*/
        ObjectOutputStream out = new ObjectOutputStream(baos);

        for (Externalizable object : objects) {
            Message msg = new MessageImpl(type, object, null);
            out.writeObject(msg);
        }

        out.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

    int size = baos.size();
    int sizePerMessage = size / objects.length;
    System.out.println("   Size indicating types " + objects.length + " messages - RMI: " + size + " bytes ("
            + sizePerMessage + " bytes/msg)");
}

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

public static void externalizeSeveralObjects(Externalizable[] objects, ByteArrayOutputStream baos) {

    long start = 0, end = 0;

    try {/*from  w  w w.j  a  v a2  s .  c o m*/
        ObjectOutputStream out = new ObjectOutputStream(baos);

        //Measure the elapsed time
        start = System.nanoTime();

        for (Externalizable object : objects) {
            out.writeObject(object);
        }

        end = System.nanoTime();

        out.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

    long elapsed = (end - start);
    long elapsedPerMessage = elapsed / objects.length;
    System.out.println("   Elapsed Time " + objects.length + " messages - Externalize: " + elapsed
            + " nanoseconds (" + elapsedPerMessage + " nanoseconds/msg)");
}

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

public static void sizeSeveralJSONWithoutTypes(JSONizable[] objects) {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream stream;

    try {/*from  ww w  .  j av  a 2s .c  om*/
        stream = new ObjectOutputStream(baos);

        for (JSONizable object : objects) {
            String json = object.toJSONString();
            stream.writeObject(json);
        }

    } catch (Exception ex) {
        ex.printStackTrace();
    }

    int size = baos.size();
    int sizePerMessage = size / objects.length;
    System.out.println("   Size no indicating type " + objects.length + " messages - JSON: " + size + " bytes ("
            + sizePerMessage + " bytes/msg)");
}

From source file:com.navercorp.pinpoint.web.filter.Base64.java

public static String encodeObject(Serializable serializableObject, int options) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    OutputStream b64os = null;//from w  ww .  java2  s  .com
    ObjectOutputStream oos = null;

    String var6;
    try {
        b64os = new Base64.Base64OutputStream(baos, 1 | options);
        oos = (options & 2) == 2 ? new ObjectOutputStream(new GZIPOutputStream(b64os))
                : new ObjectOutputStream(b64os);
        oos.writeObject(serializableObject);
        String var5 = new String(baos.toByteArray(), "UTF-8");
        return var5;
    } catch (UnsupportedEncodingException var28) {
        var6 = new String(baos.toByteArray());
        return var6;
    } catch (IOException var29) {
        LOG.error("error encoding object", var29);
        var6 = null;
    } finally {
        if (oos != null) {
            try {
                oos.close();
            } catch (Exception var27) {
                LOG.error("error closing ObjectOutputStream", var27);
            }
        }

        if (b64os != null) {
            try {
                b64os.close();
            } catch (Exception var26) {
                LOG.error("error closing Base64OutputStream", var26);
            }
        }

        try {
            baos.close();
        } catch (Exception var25) {
            LOG.error("error closing ByteArrayOutputStream", var25);
        }

    }

    return var6;
}

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

public static void jSONizeObjects(JSONizable[] objects, ByteArrayOutputStream baos) {

    long start = 0, end = 0;

    try {//from  w  w w  .  j  a v  a  2 s .  c o  m
        ObjectOutputStream stream = new ObjectOutputStream(baos);

        start = System.nanoTime();

        for (JSONizable object : objects) {
            String json = object.toJSONString();
            stream.writeObject(json);
        }

        end = System.nanoTime();

    } catch (Exception ex) {
        ex.printStackTrace();
    }

    long elapsed = end - start;
    long elapsedPerMessage = elapsed / objects.length;
    System.out.println("   Elapsed Time " + objects.length + " messages - JSONize: " + elapsed
            + " nanoseconds (" + elapsedPerMessage + " nanoseconds/msg)");
}

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

private static ByteArray serializeNumericTable(NumericTable dataTable) throws IOException {
    /* Create an output stream to serialize the numeric table */
    ByteArrayOutputStream outputByteStream = new ByteArrayOutputStream();
    ObjectOutputStream outputStream = new ObjectOutputStream(outputByteStream);

    /* Serialize the numeric table into the output stream */
    dataTable.pack();/*from w  w w  . j av  a  2s.co  m*/
    outputStream.writeObject(dataTable);

    /* Store the serialized data in an array */
    byte[] buffer = outputByteStream.toByteArray();
    ByteArray numericTableHarp = new ByteArray(buffer, 0, buffer.length);
    return numericTableHarp;
}

From source file:com.likya.myra.jef.utils.JobQueueOperations.java

public static boolean persistDisabledJobQueue(ConfigurationManager configurationManager,
        HashMap<String, String> jobQueue) {

    FileOutputStream fos = null;/*from   w w w.  j a v  a  2 s .c  o m*/
    ObjectOutputStream out = null;

    if (jobQueue.size() == 0) {
        return true;
    }

    try {

        File fileTemp = new File(configurationManager.getFileToPersist() + "_disabled.temp"); //$NON-NLS-1$
        fos = new FileOutputStream(fileTemp);

        out = new ObjectOutputStream(fos);

        out.writeObject(jobQueue);
        out.close();

        File file = new File(configurationManager.getFileToPersist() + "_disabled");

        if (file.exists()) {
            file.delete();
        }

        fileTemp.renameTo(file);

    } catch (IOException ex) {
        ex.printStackTrace();
    }

    return true;

}

From source file:jade.mtp.http.XMLCodec.java

/** 
 * A user-defined property (String name, Object value) is encoded the following way:
 * <user-defined href="name" type="type">value</user-defined>
 * /* www  .  j ava  2  s .co  m*/
 */
private static void encodeProp(StringBuffer sb, Property p) {
    String v = null;
    Object o = p.getValue();
    String type = PROP_STRING_TYPE;
    if (o instanceof String) {
        v = (String) o;
    } else if (o instanceof byte[]) {
        type = PROP_BYTE_TYPE;
        try {
            v = new String(Base64.encodeBase64((byte[]) o), "US-ASCII");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    } else if (o instanceof Serializable) {
        type = PROP_SER_TYPE;
        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            ObjectOutputStream oos = new ObjectOutputStream(bos);
            oos.writeObject(o);
            oos.close();
            byte[] bytes = bos.toByteArray();
            if (bytes != null)
                v = new String(Base64.encodeBase64(bytes), "US-ASCII");
        } catch (IOException ioe) {
            return;
        }
    } else {
        return;
    }
    sb.append(OT).append(PROP_TAG).append(" ");
    sb.append(PROP_ATTR).append("=\"").append(p.getName()).append("\" ");
    sb.append(PROP_ATTR_TYPE).append("=\"").append(type).append("\"");
    sb.append(CT);
    sb.append(v);
    sb.append(ET).append(PROP_TAG).append(CT);
}

From source file:SystemUtils.java

public static void StoreObject(Object target, String filePath) throws IOException {
    FileOutputStream fos = null;/*from  ww w . j  a  v  a 2 s. c  om*/
    ObjectOutputStream oos = null;

    try {
        fos = new FileOutputStream(filePath);
        oos = new ObjectOutputStream(fos);
        oos.writeObject(target);
    } finally {
        if (oos != null) {
            try {
                oos.close();
            } catch (Exception e) {
            }
            oos = null;
        }

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

From source file:gov.nasa.ensemble.common.CommonUtils.java

/**
 * Serializes an object and return the byte array.
 * /*w  ww . j  av a  2 s. c  o  m*/
 * @param o
 * @return a byte[] containing the object or null if exceptions are encountered
 */
public static byte[] serializeObject(Object o) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos;
    try {
        oos = new ObjectOutputStream(baos);
        oos.writeObject(o);
    } catch (IOException e) {
        trace.error(e, e);
        return null;
    }
    return baos.toByteArray();
}