private Dictionary <string, object> ReleaseItem(int quantity, string productName)
{
if (_stock.ContainsKey(productName))
{
_stock[productName].Quantity += quantity;
return(new Dictionary <string, object> {
{ "nReleased", quantity }
});
}
return(ServerMessaging.BuildErrorResponse("Item doesn't exist !"));
}
private Dictionary <string, object> ReserveItem(int quantity, string productName)
{
if (_stock.ContainsKey(productName))
{
var item = _stock[productName];
if (quantity <= item.Quantity)
{
item.Quantity -= quantity;
return(new Dictionary <string, object> {
{ "nReserved", quantity }
});
}
return(ServerMessaging.BuildErrorResponse("Not enough quantity in stock !"));
}
return(ServerMessaging.BuildErrorResponse("Item doesn't exist !"));
}
StockManager()
{
LoadStock();
var serverRabbitMQ = new ServerMessaging("localhost", "stock_queue");
serverRabbitMQ.Listen((ea, json) => {
if (json == null)
{
serverRabbitMQ.Send(ea, ServerMessaging.BuildErrorResponse("Bad request formatting."));
}
try
{
Dictionary <string, object> response;
string action = (string)json["action"];
if (action == "list")
{
response = ListItems();
}
else
{
string productName = (string)json["product"];
int quantity = (int)(long)json["quantity"];
if (action == "reserve")
{
response = ReserveItem(quantity, productName);
}
else if (action == "release")
{
response = ReleaseItem(quantity, productName);
}
else
{
throw new Exception("Unhandled action.");
}
}
serverRabbitMQ.Send(ea, response);
}
catch (Exception e)
{
serverRabbitMQ.Send(ea, ServerMessaging.BuildErrorResponse(e.Message));
}
});
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
serverRabbitMQ.Close();
}
BillManager()
{
var serverRabbitMQ = new ServerMessaging("localhost", "bill_queue");
serverRabbitMQ.Listen((ea, requestBody) => {
if (requestBody == null)
{
serverRabbitMQ.Send(ea, ServerMessaging.BuildErrorResponse("Bad request formatting."));
}
try
{
var response = BuildBill(requestBody);
serverRabbitMQ.Send(ea, response);
}
catch (Exception e)
{
serverRabbitMQ.Send(ea, ServerMessaging.BuildErrorResponse(e.Message));
}
});
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
serverRabbitMQ.Close();
}