O'Reilly - Java Message Service

} catch (java.lang.RuntimeException rte){
rte.printStackTrace( );
}
}
private void autoBuy (javax.jms.Message message){
try {
StreamMessage strmMsg = (StreamMessage)message;
String dealDesc = strmMsg.readString( );
String itemDesc = strmMsg.readString( );
float oldPrice = strmMsg.readFloat( );
float newPrice = strmMsg.readFloat( );
System.out.println("Received Hot Buy: "+dealDesc);
// If price reduction is greater than 10 percent, buy
if (newPrice == 0 || oldPrice / newPrice > 1.1) {
int count = (int)(java.lang.Math.random( )*(double)1000);
System.out.println("\nBuying " + count +" "+ itemDesc);
TextMessage textMsg = tSession.createTextMessage( );
textMsg.setText(count + " " + itemDesc );
textMsg.setIntProperty("QTY", count);
textMsg.setJMSCorrelationID(uname);
Queue buyQueue = (Queue)message.getJMSReplyTo( );
qSender = qSession.createSender(buyQueue);
qSender.send( textMsg,
javax.jms.DeliveryMode.PERSISTENT,
javax.jms.Message.DEFAULT_PRIORITY,
1800000);
} else {
System.out.println ("\nBad Deal. Not buying");
}
} catch (javax.jms.JMSException jmse){
jmse.printStackTrace( );
}
}
private void exit(String s){
try {
if ( s != null &&
s.equalsIgnoreCase("unsubscribe"))
{
tsubscriber.close( );
tSession.unsubscribe("Hot Deals Subscription");
}
tConnect.close( );
qConnect.close( );
} catch (javax.jms.JMSException jmse){
jmse.printStackTrace( );
}
System.exit(0);
}
public static void main(String argv[]) {
String broker, username, password;
if (argv.length == 3){
broker = argv[0];
username = argv[1];
password = argv[2];
} else {
System.out.println("Invalid arguments. Should be: ");
System.out.println
("java QRetailer broker username password");
return;
}
QRetailer retailer = new QRetailer(broker, username, password);
Java Message Service
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