Example usage for javax.jms BytesMessage readBytes

Introduction

In this page you can find the example usage for javax.jms BytesMessage readBytes.

Prototype

int readBytes(byte[] value, int length) throws JMSException;

Source Link

Document

Reads a portion of the bytes message stream.

Usage

From source file:org.perfcake.message.sender.RequestResponseJmsSenderTest.java

@Test
public void testResponseSend() throws Exception {
    final String queueName = "queue/test";
    final String replyQueueName = "queue/test_reply";

    final JmsHelper.Wiretap wiretap = JmsHelper.wiretap(queueName, replyQueueName);
    wiretap.start();/*from www .  java2  s. c  om*/

    final Properties props = new Properties();
    props.setProperty("messagetType", "STRING");
    props.setProperty("target", queueName);
    props.setProperty("responseTarget", replyQueueName);
    props.setProperty("connectionFactory", "ConnectionFactory");
    props.setProperty("transacted", "true");
    props.setProperty("autoAck", "false");

    final RequestResponseJmsSender sender = (RequestResponseJmsSender) ObjectFactory
            .summonInstance(RequestResponseJmsSender.class.getName(), props);

    Assert.assertEquals(sender.getMessageType(), RequestResponseJmsSender.MessageType.STRING);
    Assert.assertEquals(sender.getTarget(), queueName);
    Assert.assertEquals(sender.getResponseTarget(), replyQueueName);
    Assert.assertEquals(sender.isTransacted(), true);
    Assert.assertEquals(sender.isAutoAck(), false);

    try {
        sender.init();

        // make sure the queues are empty
        Assert.assertNull(JmsHelper.readMessage(factory, 500, queue));
        Assert.assertNull(JmsHelper.readMessage(factory, 500, queueReply));

        // STRING
        org.perfcake.message.Message message = new org.perfcake.message.Message();
        final String payload = "Hello World!";
        message.setPayload(payload);
        sender.preSend(message, null, null);
        Serializable response = sender.send(message, null);
        sender.postSend(message);

        Assert.assertTrue(response instanceof String);
        Assert.assertEquals((String) response, payload);

        // what did the wiretap see
        Message jmsResponse = wiretap.getLastMessage();
        Assert.assertTrue(jmsResponse instanceof TextMessage);
        Assert.assertEquals(((TextMessage) jmsResponse).getText(), payload);

        // OBJECT
        sender.setMessageType(JmsSender.MessageType.OBJECT);
        message = new org.perfcake.message.Message();
        final Long payloadObject = 42L;
        message.setPayload(payloadObject);
        sender.preSend(message, null, null);
        response = sender.send(message, null);
        sender.postSend(message);

        Assert.assertTrue(response instanceof Long);
        Assert.assertEquals((Long) response, payloadObject);

        // what did the wiretap see
        jmsResponse = wiretap.getLastMessage();
        Assert.assertTrue(jmsResponse instanceof ObjectMessage);
        Assert.assertTrue(((ObjectMessage) jmsResponse).getObject() instanceof Long);
        Assert.assertEquals((Long) ((ObjectMessage) jmsResponse).getObject(), payloadObject);

        // BYTEARRAY
        sender.setMessageType(JmsSender.MessageType.BYTEARRAY);
        message = new org.perfcake.message.Message();
        message.setPayload(payload);
        sender.preSend(message, null, null);
        response = sender.send(message, null);
        sender.postSend(message);

        Assert.assertTrue(response instanceof byte[]);
        Assert.assertEquals(new String((byte[]) response, "UTF-8").trim(), payload);

        // what did the wiretap see
        jmsResponse = wiretap.getLastMessage();
        Assert.assertTrue(jmsResponse instanceof BytesMessage);
        final BytesMessage bytesMessage = (BytesMessage) jmsResponse;
        bytesMessage.reset();
        final byte[] bytes = new byte[(int) bytesMessage.getBodyLength()];
        bytesMessage.readBytes(bytes, bytes.length);
        Assert.assertEquals(new String(bytes, "UTF-8").trim(), payload);

        wiretap.stop();

        // make sure the queue is empty
        Assert.assertNull(JmsHelper.readMessage(factory, 500, queue));
        Assert.assertNull(JmsHelper.readMessage(factory, 500, queueReply));
    } finally {
        sender.close();
    }
}

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