//what to do once we recieve the message
private void Recieve(string message, string from) //make the message the item code
{
//waits for the following message from the event channel once it gets it executes the following code
if (from == "startEvent" && message == "order")
{
//Calls our buisness layer to check if the item entered is within the minimum and maximum range
var DatabaseCall = new SCSM.Business.DatabaseCalls();
var val = DatabaseCall.CheckMinAndMaxRequired(itemOrder);
//if too many alert the user
if (val == "too many")
{
MessageBox.Show("You need to order less (Maximum orders exceeded)");
//send a message to the mediator to indicate failure. The next processor will not start
Send("cancel");
}
else if (val == "too little")
{
MessageBox.Show("You need to order more (Minimum orders not met)");
//send a message to the mediator to indicate failure. The next processor will not start
Send("cancel");
}
else
{
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("order");
}
}
}
private void Recieve(string message, string from)
{
var databaseCall = new SCSM.Business.DatabaseCalls();
//get the message from the mediator id the previous processes passed their success message it executes the appropriate logic
if (from == "Process 2" && message == "add")
{
//if the amount spent so far exceeds the monthly budget sends a warning
if (databaseCall.CalculateMoneySpent() > MONTHLY_BUDGET)
{
MessageBox.Show("We are already overbudget please reconsider adding more stock and instead focus on selling the goods we have");
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("add");
}
Send("add");
}
}
private void Recieve(string message, string from)
{
var databaseCall = new SCSM.Business.DatabaseCalls();
//if process one is a sucess then the check if the item exists
if (from == "Process 1" && message == "add")
{
if (databaseCall.CheckIfItemExists(stockItem.itemCode))
{
//if the item does exist tell send a notification and send message to the mediator to tell it it has failed
MessageBox.Show("This item already exists you can not add an existing item");
Send("cancel");
}
else
{
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("add");
}
}
}
private void Recieve(string message, string from)
{
var databaseCall = new SCSM.Business.DatabaseCalls();
//if mediator tells us proccess 3 was a sucess we run the following code
if (from == "Process 3" && message == "delete")
{
//delete the item
databaseCall.DeleteStockItem(itemCode);
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("delete");
}
//If it gets the success message from proccess 3 execute the following
if (from == "Process 3" && message == "order")
{
//add it to the db
databaseCall.OrderStocks(itemOrder);
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("order");
}
//If it gets the success message from proccess 3 execute the following
if (from == "Process 3" && message == "add")
{
databaseCall.AddToStock(stockItem);
/*Send a message to the mediator to indicate success. Mediator will then send a message via the event channel
* so the next process knows when to start*/
Send("add");
}
}