Example usage for java.io ObjectOutput writeObject

Introduction

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

Prototype

public void writeObject(Object obj) throws IOException;

Source Link

Document

Write an object to the underlying storage or stream.

Usage

From source file:org.jfree.data.xy.junit.XYIntervalSeriesCollectionTest.java

/**
 * Serialize an instance, restore it, and check for equality.
 *//*from  w w  w.j a  v  a2s  .c om*/
public void testSerialization() {
    XYIntervalSeriesCollection c1 = new XYIntervalSeriesCollection();
    XYIntervalSeries s1 = new XYIntervalSeries("Series");
    s1.add(1.0, 1.1, 1.2, 1.3, 1.4, 1.5);
    XYIntervalSeriesCollection c2 = null;

    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(c1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        c2 = (XYIntervalSeriesCollection) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(c1, c2);

    // check independence
    c1.addSeries(new XYIntervalSeries("Empty"));
    assertFalse(c1.equals(c2));
    c2.addSeries(new XYIntervalSeries("Empty"));
    assertTrue(c1.equals(c2));
}

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From source file:xbird.xquery.expr.func.FunctionCall.java

public void writeExternal(ObjectOutput out) throws IOException {
    out.writeObject(_type);
    _funcName.writeExternal(out);//from  www  .  j  a  v  a 2  s.  com
    final List<XQExpression> params = _params;
    final int numParams = params.size();
    out.writeInt(numParams);
    for (XQExpression e : params) {
        out.writeObject(e);
    }
}

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From source file:org.apache.stratos.mock.iaas.persistence.RegistryManager.java

/**
 * Serialize an object to a byte array./*from ww  w.  j a v a 2 s .  c o m*/
 *
 * @param object object
 * @return byte array
 * @throws java.io.IOException
 */
private byte[] serializeToByteArray(Object object) throws IOException {

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutput out = null;
    try {
        out = new ObjectOutputStream(bos);
        out.writeObject(object);
        return bos.toByteArray();

    } finally {
        if (out != null) {
            out.close();
        }
        bos.close();
    }
}

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From source file:org.apache.synapse.message.store.impl.rabbitmq.RabbitMQProducer.java

public boolean storeMessage(MessageContext synCtx) {
    if (synCtx == null) {
        return false;
    }//from  w w  w  .j a v  a  2 s .com
    if (connection == null) {
        if (logger.isDebugEnabled()) {
            logger.error(getId() + " cannot proceed. RabbitMQ Connection is null.");
        }
        logger.warn(getId() + ". Ignored MessageID : " + synCtx.getMessageID());
        return false;
    }
    StorableMessage message = MessageConverter.toStorableMessage(synCtx);
    boolean error = false;
    Throwable throwable = null;
    Channel channel = null;
    try {
        //Serializing message
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        ObjectOutput objOut = new ObjectOutputStream(os);
        objOut.writeObject(message);
        byte[] byteForm = os.toByteArray();
        objOut.close();
        os.close();
        //building AMQP message
        AMQP.BasicProperties.Builder builder = new AMQP.BasicProperties().builder();
        builder.messageId(synCtx.getMessageID());
        builder.deliveryMode(MessageProperties.MINIMAL_PERSISTENT_BASIC.getDeliveryMode());
        builder.priority(message.getPriority(DEFAULT_PRIORITY));
        channel = connection.createChannel();
        if (exchangeName == null) {
            channel.basicPublish("", queueName, builder.build(), byteForm);
        } else {
            channel.basicPublish(exchangeName, queueName, builder.build(), byteForm);
        }
    } catch (IOException e) {
        throwable = e;
        error = true;
        isConnectionError = true;
    } catch (Throwable t) {
        throwable = t;
        error = true;
    } finally {
        if (channel != null && channel.isOpen())
            try {
                channel.close();
            } catch (IOException e) {
                logger.error("Error when closing connection" + synCtx.getMessageID() + ". " + e);
            }
    }
    if (error) {
        String errorMsg = getId() + ". Ignored MessageID : " + synCtx.getMessageID()
                + ". Could not store message to store [" + store.getName() + "]. Error:"
                + throwable.getLocalizedMessage();
        logger.error(errorMsg, throwable);
        store.closeProducerConnection();
        connection = null;
        if (logger.isDebugEnabled()) {
            logger.debug(getId() + ". Ignored MessageID : " + synCtx.getMessageID());
        }
        return false;
    }
    if (logger.isDebugEnabled()) {
        logger.debug(getId() + ". Stored MessageID : " + synCtx.getMessageID());
    }
    store.enqueued();
    return true;
}

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From source file:com.bah.applefox.main.plugins.fulltextindex.FTAccumuloSampler.java

/**
 * Overridden method to create the sample
 *//*from  w  w w  .jav  a2s.com*/
public void createSample() {
    try {
        // HashMap to write the sample table to
        HashMap<String, Integer> output = new HashMap<String, Integer>();

        // Scan the data table
        Scanner scan = AccumuloUtils.connectRead(dataTable);

        Map<String, String> properties = new HashMap<String, String>();
        IteratorSetting cfg2 = new IteratorSetting(11, SamplerCreator.class, properties);
        scan.addScanIterator(cfg2);

        for (Entry<Key, Value> entry : scan) {
            try {
                // Write the data from the table to the sample table
                String row = entry.getKey().getRow().toString();
                // get rid of the timestamp at the end
                row = row.substring(0, row.lastIndexOf(" "));
                int value = output.containsKey(row) ? output.get(row) : 0;
                value += (Integer) IngestUtils.deserialize(entry.getValue().get());
                output.put(row, value);
            } catch (Exception e) {
                if (e.getMessage() != null) {
                    log.error(e.getMessage());
                } else {
                    log.error(e.getStackTrace());
                }
            }
        }

        // get the total number of docs from the urls table
        Scanner scann = AccumuloUtils.connectRead(urlTable);

        IteratorSetting cfg3 = new IteratorSetting(11, TotalDocFinder.class, properties);
        scann.addScanIterator(cfg3);

        for (Entry<Key, Value> entry : scann) {
            try {
                output.put(entry.getKey().getRow().toString(),
                        (Integer) IngestUtils.deserialize(entry.getValue().get()));
            } catch (Exception e) {
                if (e.getMessage() != null) {
                    log.error(e.getMessage());
                } else {
                    log.error(e.getStackTrace());
                }
            }
        }

        // Create the sample table file
        File f = new File(sampleFile);
        f.createNewFile();

        // use buffering
        OutputStream file = new FileOutputStream(f);
        OutputStream buffer = new BufferedOutputStream(file);
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(output);
        out.flush();
        out.close();
    } catch (AccumuloException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (AccumuloSecurityException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (TableNotFoundException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (IOException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    }
}

---

From source file:com.bah.applefox.main.plugins.imageindex.ImageAccumuloSampler.java

/**
 * Overridden method to create the sample
 *///from  w w  w.  j a  v  a  2s . c  o m
public void createSample() {
    try {
        // HashMap to write the sample table to
        HashMap<String, Integer> output = new HashMap<String, Integer>();

        // Scan the data table
        Scanner scan = AccumuloUtils.connectRead(dataTable);

        Map<String, String> properties = new HashMap<String, String>();
        IteratorSetting cfg2 = new IteratorSetting(11, SamplerCreator.class, properties);
        scan.addScanIterator(cfg2);

        for (Entry<Key, Value> entry : scan) {
            try {
                // Write the data from the table to the sample table
                String row = entry.getKey().getRow().toString();
                int value = output.containsKey(row) ? output.get(row) : 0;
                value += 1;
                output.put(row, value);
            } catch (Exception e) {
                if (e.getMessage() != null) {
                    log.error(e.getMessage());
                } else {
                    log.error(e.getStackTrace());
                }
            }
        }

        // get the total number of docs from the urls table
        Scanner scann = AccumuloUtils.connectRead(urlTable);

        IteratorSetting cfg3 = new IteratorSetting(11, TotalDocFinder.class, properties);
        scann.addScanIterator(cfg3);

        for (Entry<Key, Value> entry : scann) {
            try {
                output.put(entry.getKey().getRow().toString(),
                        (Integer) IngestUtils.deserialize(entry.getValue().get()));
            } catch (Exception e) {
                if (e.getMessage() != null) {
                    log.error(e.getMessage());
                } else {
                    log.error(e.getStackTrace());
                }
            }
        }

        // Create the sample table file
        System.out.println(output.size());
        System.out.println("sample file: " + sampleFile);
        File f = new File(sampleFile);
        f.createNewFile();

        // use buffering
        OutputStream file = new FileOutputStream(f);
        OutputStream buffer = new BufferedOutputStream(file);
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(output);
        out.flush();
        out.close();
    } catch (AccumuloException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (AccumuloSecurityException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (TableNotFoundException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    } catch (IOException e) {
        if (e.getMessage() != null) {
            log.error(e.getMessage());
        } else {
            log.error(e.getStackTrace());
        }
    }
}

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From source file:org.jfree.data.xy.junit.CategoryTableXYDatasetTest.java

/**
 * Serialize an instance, restore it, and check for equality.
 *///from   ww w  .  ja  v a  2s . co m
public void testSerialization() {

    CategoryTableXYDataset d1 = new CategoryTableXYDataset();
    d1.add(1.0, 1.1, "Series 1");
    d1.add(2.0, 2.2, "Series 1");

    CategoryTableXYDataset d2 = null;

    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(d1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        d2 = (CategoryTableXYDataset) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(d1, d2);

}

---

From source file:org.jfree.data.category.junit.CategoryToPieDatasetTest.java

/**
 * Serialize an instance, restore it, and check for equality.
 *///from  w  w  w  .ja v  a  2 s .  c  o m
public void testSerialization() {
    DefaultCategoryDataset underlying = new DefaultCategoryDataset();
    underlying.addValue(1.1, "R1", "C1");
    underlying.addValue(2.2, "R1", "C2");
    CategoryToPieDataset d1 = new CategoryToPieDataset(underlying, TableOrder.BY_COLUMN, 1);
    CategoryToPieDataset d2 = null;

    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(d1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        d2 = (CategoryToPieDataset) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(d1, d2);

    // regular equality for the datasets doesn't check the fields, just
    // the data values...so let's check some more things...
    assertEquals(d1.getUnderlyingDataset(), d2.getUnderlyingDataset());
    assertEquals(d1.getExtractType(), d2.getExtractType());
    assertEquals(d1.getExtractIndex(), d2.getExtractIndex());
}

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From source file:org.jfree.data.xy.junit.DefaultTableXYDatasetTest.java

/**
 * Serialize an instance, restore it, and check for equality.
 *///www  .ja v a  2  s.co  m
public void testSerialization() {

    DefaultTableXYDataset d1 = new DefaultTableXYDataset();
    XYSeries s1 = new XYSeries("Series 1", true, false);
    s1.add(1.0, 1.1);
    s1.add(2.0, 2.2);
    d1.addSeries(s1);

    DefaultTableXYDataset d2 = null;

    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(d1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        d2 = (DefaultTableXYDataset) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(d1, d2);

}

---

From source file:org.jfree.data.xy.junit.DefaultWindDatasetTest.java

/**
 * Serialize an instance, restore it, and check for equality.
 *//*from ww  w .ja va2 s  .  co  m*/
public void testSerialization() {
    DefaultWindDataset d1 = new DefaultWindDataset();
    DefaultWindDataset d2 = null;
    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(d1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        d2 = (DefaultWindDataset) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(d1, d2);

    // try a dataset with some content...
    d1 = createSampleDataset1();
    try {
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(buffer);
        out.writeObject(d1);
        out.close();

        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
        d2 = (DefaultWindDataset) in.readObject();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    assertEquals(d1, d2);

}

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