static void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("Invalid command");
Environment.ExitCode = 1;
}
var builder = new ConfigurationBuilder().AddCommandLine(args);
IConfigurationRoot configuration = builder.Build();
var command = GetMandatoryArg(configuration, "Command");
var backend = GetMandatoryArg(configuration, "Backend");
var connection = GetMandatoryArg(configuration, "ConnString");
var rabbitConn = new RabbitConnection()
{
Host = GetOptionalArg(configuration, "RabbitHost", "localhost"),
VirtualHost = GetOptionalArg(configuration, "RabbitVHost", "/"),
Username = GetOptionalArg(configuration, "RabbitUser", "guest"),
Password = GetOptionalArg(configuration, "RabbitPassword", "guest"),
Port = int.Parse(GetOptionalArg(configuration, "RabbitPort", "5672")),
ManagementPort = int.Parse(GetOptionalArg(configuration, "RabbitMgmtPort", "15672"))
};
var queueInventory = new QueueInventory()
{
ConsumerGroup = GetMandatoryArg(configuration, "ConsumerGroup"),
ExchangeName = GetMandatoryArg(configuration, "ExchangeName"),
QueueCount = int.Parse(GetMandatoryArg(configuration, "QueueCount")),
QueuePrefix = GetMandatoryArg(configuration, "QueuePrefix"),
LeaseExpirySeconds = int.Parse(GetMandatoryArg(configuration, "LeaseExpirySeconds"))
};
if (command.Equals("create", StringComparison.OrdinalIgnoreCase))
{
if (backend.Equals("mssql", StringComparison.OrdinalIgnoreCase))
{
DeployQueuesWithSqlBackend(connection, rabbitConn, queueInventory);
}
else
{
Console.WriteLine("Only mssql backend is supported");
}
}
else
{
Console.WriteLine("Only create command is supported");
}
}
public static void DeployQueuesWithSqlBackend(string connection, RabbitConnection rabbitConn,
QueueInventory queueInventory)
{
try
{
QueueManager.Initialize(connection, rabbitConn);
QueueManager.EnsureResourceGroup(queueInventory.ConsumerGroup, queueInventory.LeaseExpirySeconds);
Console.WriteLine("Phase 1 - Reconcile Backend with existing RabbitMQ queues ---------");
QueueManager.ReconcileQueuesSqlAsync(queueInventory.ConsumerGroup, queueInventory.QueuePrefix).Wait();
Console.WriteLine("Phase 2 - Ensure supplied queue count is deployed ---------");
List <string> existingQueues = QueueManager.GetQueuesAsync(queueInventory.QueuePrefix).Result;
if (existingQueues.Count > queueInventory.QueueCount)
{
int queuesToRemove = existingQueues.Count - queueInventory.QueueCount;
for (int i = 0; i < queuesToRemove; i++)
{
QueueManager.RemoveQueueSqlAsync(queueInventory.ConsumerGroup, queueInventory.QueuePrefix)
.Wait();
}
}
else if (existingQueues.Count < queueInventory.QueueCount)
{
int queuesToAdd = queueInventory.QueueCount - existingQueues.Count;
for (int i = 0; i < queuesToAdd; i++)
{
QueueManager.AddQueueSqlAsync(queueInventory.ConsumerGroup, queueInventory.ExchangeName,
queueInventory.QueuePrefix).Wait();
}
}
Console.WriteLine("Complete");
Environment.ExitCode = 0;
}
catch (Exception ex)
{
Console.WriteLine(ex);
Environment.ExitCode = 1;
}
}