static void ProcessRequest(object obj)
{
try
{
GenericRequest gen_req = obj as GenericRequest;
if (gen_req == null)
{
Console.WriteLine("Error processing request, it is not a request object!");
queue.sendObject(null, ObjectMessageQueue.DB_RESPONSE);
}
else
{
Console.WriteLine("Fetching data...");
MessageProcessor parser = new MessageProcessor(context, gen_req);
try
{
Object result = typeof(MessageProcessor).GetMethod(gen_req.Method.ToString()).Invoke(parser, null);
Console.WriteLine("It worked!");
queue.sendResponse(result, ObjectMessageQueue.DB_RESPONSE);
}
catch (SqlException)
{
Console.WriteLine("An error occurred.");
}
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
static void Main(string[] args)
{
AppDomain.CurrentDomain.SetData("DataDirectory", Application.StartupPath);
CourseDBContext context = new CourseDBContext();
ObjectMessageQueue.InitializeQueue(ObjectMessageQueue.DB_REQUEST);
ObjectMessageQueue queue = new ObjectMessageQueue();
while (true)
{
try
{
Object obj = queue.receiveObject(ObjectMessageQueue.DB_REQUEST);
GenericRequest gen_req = obj as GenericRequest;
if (gen_req == null)
{
Console.WriteLine("Error processing request, it is not a request object!");
queue.sendObject(null, ObjectMessageQueue.DB_RESPONSE);
}
else
{
Console.WriteLine("Fetching data...");
MessageProcessor parser = new MessageProcessor(context, gen_req);
try
{
Object result = typeof(MessageProcessor).GetMethod(gen_req.Method.ToString()).Invoke(parser, null);
Console.WriteLine("It worked!");
queue.sendResponse(result, ObjectMessageQueue.DB_RESPONSE);
}
catch (SqlException)
{
Console.WriteLine("An error occurred.");
}
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
continue;
}
}
}
private static void DoMessage(Object obj)
{
GenericRequest gen_req = obj as GenericRequest;
ObjectMessageQueue queue = new ObjectMessageQueue();
queue.RequestGuid = gen_req.requester_guid;
queue.RequestIP = gen_req.requester_ip;
if (gen_req == null)
{
Console.WriteLine("Error processing request, it is not a request object!");
queue.sendObject(null, ObjectMessageQueue.DB_RESPONSE);
}
else
{
Console.WriteLine("Fetching data...");
Object result = null;
if (gen_req.Method == MethodType.GetAll && getAll_cache.TryGetValue(gen_req.Type.ToString(), out result))
{
Console.WriteLine("It worked! Found Cached Result!");
queue.sendResponse(result, ObjectMessageQueue.DB_RESPONSE);
}
else
{
if (gen_req.Method == MethodType.Add || gen_req.Method == MethodType.Delete || gen_req.Method == MethodType.Update)
{
object n = null;
getAll_cache.TryRemove(gen_req.Type.ToString(), out n);
}
CourseDBContext context = null;
if (contextQueue.TryDequeue(out context) == false)
{
//Check if we are under the max count of contexts allowed
bool createNew = false;
lock (context_lock)
{
if (context_count < 25)
{
context_count++;
createNew = true;
}
}
//If we are allowed, create a context for ourself and the pool.
if (createNew)
{
context = new CourseDBContext();
}
else //Else, wait for a context to be available
{
while (contextQueue.TryDequeue(out context) == false)
{
Thread.Sleep(5);
}
}
}
MessageProcessor parser = new MessageProcessor(context, gen_req);
try
{
//Object result = typeof(MessageProcessor).GetMethod(gen_req.Method.ToString()).Invoke(parser, null);
result = typeof(MessageProcessor).GetMethod(gen_req.Method.ToString()).Invoke(parser, null);
Console.WriteLine("It worked!");
if (gen_req.Method == MethodType.GetAll)
getAll_cache.TryAdd(gen_req.Type.ToString(), result);
queue.sendResponse(result, ObjectMessageQueue.DB_RESPONSE);
}
catch (SqlException)
{
Console.WriteLine("An error occurred.");
}
contextQueue.Enqueue(context);
}
}
}
