Examples of javax.jms.JMSConsumer

javax.jms.JMSConsumer
A client using the simplified JMS API introduced for JMS 2.0 uses a {@code JMSConsumer} object to receive messages from a queue or topic. A{@code JMSConsumer} object may be created either created by passing a{@code Queue} or {@code Topic} object to one of the {@code createConsumer}methods on a {@code JMSContext}. or by passing a {@code Topic} object to oneof the {@code createSharedConsumer} or {@code createDurableConsumer} methodson a {@code JMSContext}.
A {@code JMSConsumer} can be created with a message selector. A messageselector allows the client to restrict the messages delivered to the {@code JMSConsumer} to those that match the selector.
A client may either synchronously receive a {@code JMSConsumer}'s messages or have the {@code JMSConsumer} asynchronously deliver them as they arrive.
For synchronous receipt, a client can request the next message from a {@code JMSConsumer} using one of its {@code receive} methods. There areseveral variations of {@code receive} that allow a client to poll or wait forthe next message.
For asynchronous delivery, a client can register a {@code MessageListener}object with a {@code JMSConsumer}. As messages arrive at the {@code JMSConsumer}, it delivers them by calling the {@code MessageListener}'s {@code onMessage} method.
It is a client programming error for a {@code MessageListener} to throw anexception. @version 2.0 @see javax.jms.JMSContext

                for (int i = 0; i < count; i++) {
                    context.createProducer().send(destination, content);
                }


                // Create the JMS consumer
                JMSConsumer consumer = context.createConsumer(destination);
                // Then receive the same number of messages that were sent
                for (int i = 0; i < count; i++) {
                    String text = consumer.receiveBody(String.class, 5000);
                    log.info("Received message with content " + text);
                }
            }
        } catch (NamingException e) {
            log.severe(e.getMessage());

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        int numMessages = 10;
        launcher.start(numThreads, numMessages);


        int receivedMessages = 0;
        try(JMSContext context = factory.createContext()) {
            JMSConsumer consumer = context.createConsumer(queue);
            Message m;
            do {
                m = consumer.receive(1000);
                if (m != null) {
                    receivedMessages++;
                }
            }
            while (m != null);

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        assertNotNull(factory4);
        assertNotNull(factory5);
        assertNotNull(factory6);


        JMSContext context = factory3.createContext("guest", "guest", AUTO_ACKNOWLEDGE);
        JMSConsumer consumer = context.createConsumer(queue4);
        assertNotNull(consumer);
        consumer.close();
    }

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            TemporaryQueue tempQueue = context.createTemporaryQueue();


            producerBean.sendToDestination(tempQueue, text);


            JMSConsumer consumer = context.createConsumer(tempQueue);
            String reply = consumer.receiveBody(String.class, adjust(2000));
            assertEquals(text, reply);
        }
    }

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    }


    private String sendAndReceiveMessage(Destination destination, String text) {
            Destination replyTo = context.createTemporaryQueue();


            JMSConsumer consumer = context.createConsumer(replyTo);


            context.createProducer()
                    .setJMSReplyTo(replyTo)
                    .send(destination, text);


            return consumer.receiveBody(String.class, 5000);
    }

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    @After
    public void tearDown() throws JMSException {
        // drain the queue to remove any pending messages from it
        try(JMSContext context = factory.createContext()) {
            JMSConsumer consumer = context.createConsumer(queue);
            Message m;
            do {
                m = consumer.receiveNoWait();
            }
            while (m != null);
        }
    }

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     * wouldn't miss any message
     */
    @PostConstruct
    void createSubscription() {
        try (JMSContext jms = factory.createContext()) { // <1> This is factory with clientId specified
            JMSConsumer consumer = jms.createDurableConsumer(topic, Resources.SUBSCRIPTION); // <2> creates durable subscription on the topic
            consumer.close();
        }
    }

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