mq5.0-source.src.share.java.examples.jms20.messagegetbody.MessageGetBodyExample Maven / Gradle / Ivy
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import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Map;
import javax.jms.*;
/**
* The MessageGetBodyExample.class uses getBody() to extract the body
* directly from a Message.
*/
public class MessageGetBodyExample {
static int exitcode = 0;
public static void main(String args[]) {
MessageGetBodyExample msgGetBodyExample = new MessageGetBodyExample();
try {
msgGetBodyExample.runTest();
}catch(JMSException ex) {
ex.printStackTrace();
exitcode = 1;
}
System.exit(exitcode);
}
/**
* Message method getBody
*
* @param none
* @throws JMSException
*/
protected void runTest() throws JMSException {
ConnectionFactory connectionFactory = new com.sun.messaging.ConnectionFactory();
getBodyForTextMessage(connectionFactory);
getBodyForObjectMessage(connectionFactory);
getBodyForBytesMessage(connectionFactory);
getBodyForMapMessage(connectionFactory);
getBodyForMessage(connectionFactory);
}
/**
* Message method getBody with a ObjectMessage
*
* @param connectionFactory
* @throws JMSException
*/
private void getBodyForObjectMessage(ConnectionFactory connectionFactory) throws JMSException {
String uniqueID = Long.toString(System.currentTimeMillis());
JMSContext context = connectionFactory.createContext();
Queue queue1 = (Queue) context.createQueue("queue1");
ObjectMessage sendMessage = context.createObjectMessage(new MyObject(uniqueID));
// Send Object Message
System.out.println("");
System.out.println("Sending Object Message..");
context.createProducer().send(queue1, sendMessage);
JMSConsumer consumer = context.createConsumer(queue1);
// Receive Object Message
ObjectMessage objectMessage = (ObjectMessage) consumer.receive(1000);
if ( objectMessage != null) {
System.out.println("Object Message Received..");
} else {
System.out.println("Object Message not Received..");
exitcode=1;
return;
}
{
// Get body as a MyObject
MyObject body = objectMessage.getBody(MyObject.class);
System.out.println("Get body as a MyObject from Object Message : " + body.getValue());
}
{
// get body as a Serializable (superinterface of MyObject)
Serializable body = objectMessage.getBody(Serializable.class);
System.out.println("Get body as a Serializable from Object Message : " + ((MyObject) body).getValue());
}
{
// get body as a Object (superinterface of MyObject)
MyObject body = (MyObject) objectMessage.getBody(Object.class);
System.out.println("Get body as a Object from Object Message : " + body.getValue());
}
}
/**
* Test Message method getBody with a TextMessage
*
* @param connectionFactory
* @throws JMSException
*/
private void getBodyForTextMessage(ConnectionFactory connectionFactory) throws JMSException {
String uniqueID = Long.toString(System.currentTimeMillis());
JMSContext context = connectionFactory.createContext();
Queue queue2 = (Queue) context.createQueue("queue2");
TextMessage sendMessage = context.createTextMessage(uniqueID);
// Send Text Message
System.out.println("");
System.out.println("Sending Text Message..");
context.createProducer().send(queue2, sendMessage);
JMSConsumer consumer = context.createConsumer(queue2);
// Receive Text Message
TextMessage textMessage = (TextMessage) consumer.receive(2000);
if ( textMessage != null) {
System.out.println("Text Message Received..");
} else {
System.out.println("Text Message not Received..");
exitcode=1;
return;
}
//Get body as a String
{
String body = textMessage.getBody(String.class);
System.out.println("Get body as a String from Text Message: " + body);
}
{
// get body as a CharSequence (superinterface of String)
CharSequence body = textMessage.getBody(CharSequence.class);
System.out.println("Get body as a CharSequence from Text Message : " + (String)body);
}
{
// get body as a Serializable (superinterface of String)
Serializable body = textMessage.getBody(Serializable.class);
System.out.println("Get body as a Serializable from Text Message : " + (String)body);
}
{
// Get body as a Object (superinterface of String)
Object body = textMessage.getBody(Object.class);
System.out.println("Get body as a String from Text Message : " + (String)body);
}
}
/**
* Test Message method getBody with a (plain) Message
*
* @param connectionFactory
* @throws JMSException
*/
private void getBodyForMessage(ConnectionFactory connectionFactory) throws JMSException {
JMSContext context = connectionFactory.createContext();
Queue queue3 = (Queue) context.createQueue("queue3");
Message sendMessage = context.createMessage();
// Send plain Message
System.out.println("");
System.out.println("Sending plain Message without body..");
context.createProducer().send(queue3, sendMessage);
JMSConsumer consumer = context.createConsumer(queue3);
// Receive plain Message
Message message = consumer.receive(1000);
System.out.println("Plain message received..");
{
// There is no body, get body as a Float (invalid type, but should
// still return null)
Float body = message.getBody(Float.class);
System.out.println("There is no body in the Message , get body as a Float (invalid type), but should still return null : " + body);
}
}
/**
* Message method getBody with a MapMessage
*
* @param connectionFactory
* @throws JMSException
*/
private void getBodyForMapMessage(ConnectionFactory connectionFactory) throws JMSException {
String uniqueID = Long.toString(System.currentTimeMillis());
JMSContext context = connectionFactory.createContext();
Queue queue4 = (Queue) context.createQueue("queue4");
MapMessage sendMessage = context.createMapMessage();
sendMessage.setString("id", uniqueID);
sendMessage.setInt("foo", 123);
sendMessage.setBoolean("bar", false);
// Send Map Message
System.out.println("");
System.out.println("Sending Map Message..");
context.createProducer().send(queue4, sendMessage);
JMSConsumer consumer = context.createConsumer(queue4);
// Receive Map Message
MapMessage mapMessage = (MapMessage) consumer.receive(1000);
if ( mapMessage != null) {
System.out.println("Map Message Received..");
} else {
System.out.println("Map Message not Received..");
exitcode=1;
return;
}
{
// Get body as a Map
Map body = mapMessage.getBody(Map.class);
System.out.println("Get body as a Map from Map Message");
System.out.println("Get body as a Map (id) : " + body.get("id"));
System.out.println("Get body as a Map (foo) : " + body.get("foo"));
System.out.println("Get body as a Map (bar) : " + body.get("bar"));
}
{
// Get body as an Object (superinterface of Map)
Map body = (Map) mapMessage.getBody(Object.class);
System.out.println("Get body as an Object from Map Message");
System.out.println("Get body as a Map (id) : " + body.get("id"));
System.out.println("Get body as a Map (foo) : " + body.get("foo"));
System.out.println("Get body as a Map (bar) : " + body.get("bar"));
}
}
/**
* Message method getBody with a BytesMessage
*
* @param connectionFactory
* @throws JMSException
*/
private void getBodyForBytesMessage(ConnectionFactory connectionFactory) throws JMSException {
JMSContext context = connectionFactory.createContext();
Queue queue5 = (Queue) context.createQueue("queue5");
BytesMessage sendMessage = context.createBytesMessage();
byte[] bytes = new byte[4];
bytes[0] = 5;
bytes[1] = 6;
bytes[2] = 7;
bytes[3] = 8;
sendMessage.writeBytes(bytes);
// Send Bytes Message
System.out.println("");
System.out.println("Sending Bytes Message..");
context.createProducer().send(queue5, sendMessage);
JMSConsumer consumer = context.createConsumer(queue5);
// Receive Bytes Message
BytesMessage bytesMessage = (BytesMessage) consumer.receive(1000);
if ( bytesMessage != null) {
System.out.println("Bytes Message Received..");
} else {
System.out.println("Bytes Message not Received..");
exitcode=1;
return;
}
{
// leave message in write-only mode - this checks that the message is reset before use
System.out.println("Get body as bytes[] from Bytes Message");
byte[] body1 = bytesMessage.getBody(byte[].class);
System.out.println("Get body as a byte[](length) : " +body1.length);
System.out.println("Get body as a byte[](0) : " + body1[0]);
System.out.println("Get body as a byte[](1) : " + body1[1]);
System.out.println("Get body as a byte[](2) : " + body1[2]);
System.out.println("Get body as a byte[](3) : " + body1[3]);
}
{
// Get body as a Object - superinterface of byte[]
System.out.println("Get body as a Object - superinterface of byte[]");
Object body = bytesMessage.getBody(Object.class);
byte[] bodyAsBytes = (byte[])body;
System.out.println("Get body as a byte[](length) : "+bodyAsBytes.length);
System.out.println("Get body as a byte[](0) : "+bodyAsBytes[0]);
System.out.println("Get body as a byte[](1) : "+bodyAsBytes[1]);
System.out.println("Get body as a byte[](2) : "+bodyAsBytes[2]);
System.out.println("Get body as a byte[](3)) : "+bodyAsBytes[3]);
}
}
static class MyObject implements Serializable {
private static final long serialVersionUID = -7277008188156855782L;
private String value;
MyObject(String value) {
this.value = value;
}
String getValue() {
return value;
}
}
}
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