/** @param args [0] RabbitmqHost */
public static void main(String[] args) {
System.out.println(Constants.HEADER);
String RabbitmqHost = "localhost";
if (args.length > 0) RabbitmqHost = args[0];
ConnectionFactory factory = new ConnectionFactory();
factory.setHost(RabbitmqHost);
try {
Connection connection = factory.newConnection();
System.out.println("Connected: " + RabbitmqHost);
Channel channel = connection.createChannel();
channel.exchangeDeclare(Constants.exchange, "direct", false);
Stats stats = new Stats();
JSONWriter rabbitmqJson = new JSONWriter();
int msgCount = 0;
for (; ; ) {
stats.Update();
String statMsg = rabbitmqJson.write(stats);
System.out.println(stats.toString());
channel.basicPublish(Constants.exchange, Constants.routingKey, null, statMsg.getBytes());
++msgCount;
if (System.in.available() > 0) break;
Thread.sleep(1000);
}
channel.close();
System.out.println("Done: " + msgCount + " messages sent");
connection.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public void handleDelivery(
String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body)
throws java.io.IOException {
String reply = null;
try {
String message = new String(body);
Integer idToFind = (Integer) jsonReader.read(message);
System.out.println("Searching for: " + idToFind);
Book book = bookstore.GetBook(idToFind);
reply = book != null ? jsonWriter.write(book) : "ERROR: BOOK not found";
System.out.println("JSON response: " + reply);
} catch (Exception e) {
reply = "ERROR: internal server error";
System.err.println(e);
} finally {
BasicProperties replyProperties =
new BasicProperties.Builder().correlationId(properties.getCorrelationId()).build();
// you have to send the reply on the client
// the client is blocked until this publish.
// In rpc mode it's important send always a reply.
getChannel().basicPublish("", properties.getReplyTo(), replyProperties, reply.getBytes());
// The message must be removed form the queue.
// Anyway if the sever can't remove the message the client is safe
// with the correlation id attribute.
getChannel().basicAck(envelope.getDeliveryTag(), false);
}
}
