forked from leuchter/VS_LET
85 lines
2.4 KiB
Java
85 lines
2.4 KiB
Java
package vs;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import jakarta.jms.BytesMessage;
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import jakarta.jms.Connection;
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import jakarta.jms.ConnectionFactory;
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import jakarta.jms.Destination;
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import jakarta.jms.JMSException;
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import jakarta.jms.Message;
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import jakarta.jms.MessageConsumer;
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import jakarta.jms.MessageListener;
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import jakarta.jms.MessageProducer;
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import jakarta.jms.Session;
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import jakarta.jms.TextMessage;
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import javax.naming.Context;
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import javax.naming.InitialContext;
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import javax.naming.NamingException;
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public class JMSClient implements MessageListener {
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private Connection connection;
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private Session session;
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private MessageProducer producer;
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private MessageConsumer consumer;
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public JMSClient(String sendDest, String receiveDest) throws NamingException, JMSException {
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Context ctx = new InitialContext();
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ConnectionFactory factory = (ConnectionFactory) ctx.lookup("ConnectionFactory");
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connection = factory.createConnection();
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session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
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Destination destOut = (Destination) ctx.lookup(sendDest);
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Destination destIn = (Destination) ctx.lookup(receiveDest);
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producer = session.createProducer(destOut);
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consumer = session.createConsumer(destIn);
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consumer.setMessageListener(this);
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connection.start();
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}
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@Override
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public void onMessage(Message message) {
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if (message instanceof TextMessage) {
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TextMessage textMessage = (TextMessage) message;
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try {
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System.out.println(textMessage.getText());
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} catch (JMSException e) {
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System.err.println(e);
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}
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}
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}
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public static void main(String[] args) {
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JMSClient node = null;
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try {
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node = new JMSClient("vs.queue1", "vs.queue2");
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BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
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String line;
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while (true) {
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line = input.readLine();
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node.producer.send(node.session.createTextMessage(line));
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}
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} catch (NamingException | JMSException | IOException e) {
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System.err.println(e);
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} finally {
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try {
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if (node != null && node.producer != null) {
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node.producer.close();
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}
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if (node != null && node.consumer != null) {
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node.consumer.close();
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}
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if (node != null && node.session != null) {
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node.session.close();
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}
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if (node != null && node.connection != null) {
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node.connection.close();
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}
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} catch (JMSException e) {
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System.err.println(e);
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}
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}
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}
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}
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