Functions.cs

using System.IO;
using Microsoft.Azure.WebJobs;
using Microsoft.ServiceBus.Messaging;

namespace ServiceBus
{
    public class Functions
    {
        private const string PrefixForAll = "s-";
        private const string QueueNamePrefix = PrefixForAll + "queue-";
        private const string TopicName = PrefixForAll + "topic";

        public const string StartQueueName = QueueNamePrefix + "start";

        // Passes a service bus message from a queue to another queue using strings
        public static void SBQueue2SBQueue(
            [ServiceBusTrigger(StartQueueName)] string start,
            [ServiceBus(QueueNamePrefix + "1")] out string message,
            TextWriter log)
        {
            message = start + "-SBQueue2SBQueue";
            log.WriteLine("SBQueue2SBQueue: " + message);
        }

        // Passes a service bus message from a queue to topic using a brokered message
        public static void SBQueue2SBTopic(
            [ServiceBusTrigger(QueueNamePrefix + "1")] string message,
            [ServiceBus(TopicName)] out BrokeredMessage output,
            TextWriter log)
        {
            message = message + "-SBQueue2SBTopic";

            Stream stream = new MemoryStream();
            TextWriter writer = new StreamWriter(stream);
            writer.Write(message);
            writer.Flush();
            stream.Position = 0;

            output = new BrokeredMessage(stream)
            {
                ContentType = "text/plain"
            };

            log.WriteLine("SBQueue2SBTopic: " + message);
        }

        // Topic subscription listener #1
        public static void SBTopicListener1(
            [ServiceBusTrigger(TopicName, QueueNamePrefix + "topic-1")] string message,
            TextWriter log)
        {
            log.WriteLine("SBTopicListener1: " + message);
        }

        // Topic subscription listener #2
        public static void SBTopicListener2(
            [ServiceBusTrigger(TopicName, QueueNamePrefix + "topic-2")] BrokeredMessage message,
            TextWriter log)
        {
            using (Stream stream = message.GetBody<Stream>())
            using (TextReader reader = new StreamReader(stream))
            {
                log.WriteLine("SBTopicListener2" + reader.ReadToEnd());
            }
        }

        /// Demonstrates how AccessRights can be explicitly specified for queues/topics that
        /// you don't have Manage rights too. If the queues/topics this function is operating on
        /// don't already exist, an exception will be thrown, whereas the default behavior
        /// assumes Manage and will attempt to create queues/topics if they don't exist.
        public static void LimitedAccessExample(
            [ServiceBusTrigger(StartQueueName, AccessRights.Listen)] string start,
            [ServiceBus(QueueNamePrefix + "1", AccessRights.Send)] out string message)
        {
            message = start + "-SBQueue2SBQueue";
        }
    }
}