//2. Define the method that takes the delegate(s) and calls them.
// This is a new PowerUp method that takes two delegates, one
// to call the real PowerUp method and one for the callback
// method.
internal void PowerUp(ToggleSystemPower powerUpProcess,
PowerUpComplete callbackMethod)
{
// Call the PowerUp process using the Invoke method of the Delegate class.
powerUpProcess();
// Now call the callback method, using the Invoke method of the
// delegate class, to notify the client code
// that the reading process is done.
callbackMethod();
}
//private void DisplayMenu()
//{
// Console.WriteLine();
// Console.WriteLine("Hot Water Transfer System Control Menu");
// Console.WriteLine();
// Console.WriteLine("\t1. Turn on system");
// Console.WriteLine("\t2. Turn off system");
// Console.WriteLine("\t3. Purge hot water from system");
// Console.WriteLine("\t4. Fill system with cold water");
// Console.WriteLine("\tX. Exit HWTS control program");
// Console.WriteLine();
// Console.Write("Enter option: ");
//}
private bool RunOperation(string operation)
{
bool success = false;
string systemOperation = operation.ToUpper();
systemOperation = systemOperation.Substring(0, 1);
switch (systemOperation)
{
case "1": // Turn on the system.
if (HWTSystem != null)
{
//4. Create instance of delegate in the client code.
// The delegate used for the callback when powerup
// completes.
PowerUpComplete puc =
new PowerUpComplete(PowerUpProcessComplete);
//4. Create instance of delegate in the client code.
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerUp);
//5. Pass the instances of delegates to a method that will call them.
// Call the PowerUp method that takes the two
// delegates.
HWTSystem.PowerUp(togglePower, puc);
success = true;
}
break;
case "2": // Turn off the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerDown);
togglePower();
success = false;
}
break;
case "3": // Purge hot water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager())
{
success = true;
}
}
break;
case "4": // Fill cold water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferColdWaterIn);
if (manager())
{
success = true;
}
}
break;
case "X": // Exit the control program.
ExitSystem = true;
success = true;
break;
default:
Console.WriteLine("Menu option {0} is not valid.",
operation);
break;
}
return success;
}
private bool RunOperation(string operation, string controlOperator)
{
bool success = false;
string systemOperation = operation.ToUpper();
systemOperation = systemOperation.Substring(0, 1);
switch (systemOperation)
{
case "1": // Turn on the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerUp);
togglePower(controlOperator);
success = true;
}
break;
case "2": // Turn off the system.
if (HWTSystem != null)
{
// Traditional approach to creating an instance of a delegate.
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerDown);
// Use delegate inference for creating an instance of a delegate
// to simplify code.
//ToggleSystemPower togglePower = HWTSystem.PowerDown;
togglePower(controlOperator);
success = false;
}
break;
case "3": // Purge hot water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager(controlOperator))
{
success = true;
}
}
break;
case "4": // Fill cold water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferColdWaterIn);
if (manager(controlOperator))
{
success = true;
}
}
break;
case "X": // Exit the control program.
ExitSystem = true;
success = true;
break;
default:
Console.WriteLine("Menu option {0} is not valid.",
operation);
break;
}
return(success);
}
private bool RunOperation(string operation)
{
bool success = false;
string systemOperation = operation.ToUpper();
systemOperation = systemOperation.Substring(0, 1);
switch (systemOperation)
{
case "1": // Turn on the system.
if (HWTSystem != null)
{
// The delegate used for the callback when powerup
// completes.
PowerUpComplete puc =
new PowerUpComplete(PowerUpProcessComplete);
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerUp);
// Call the PowerUp method that takes the two
// delegates.
HWTSystem.PowerUp(togglePower, puc);
success = true;
}
break;
case "2": // Turn off the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerDown);
togglePower();
success = false;
}
break;
case "3": // Purge hot water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager())
{
success = true;
}
}
break;
case "4": // Fill cold water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferColdWaterIn);
if (manager())
{
success = true;
}
}
break;
case "5": // Correct system errors.
if (HWTSystem != null)
{
// See if the system is on. If not, turn it on!
if (!HWTSystem.PowerOn)
{
HWTSystem.PowerUp();
}
// Purge the hot water and then fill with cold water.
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager())
{
manager = new
ManageWater(HWTSystem.TransferColdWaterIn);
if (manager())
{
success = true;
}
}
// Turn the system off.
if (HWTSystem.PowerOn)
{
HWTSystem.PowerDown();
}
Console.WriteLine("System errors have been fixed " +
"and the system was shutdown successfully.");
}
break;
case "X": // Exit the control program.
ExitSystem = true;
success = true;
break;
default:
Console.WriteLine("Menu option {0} is not valid.",
operation);
break;
}
return success;
}
// This is a new PowerUp method that takes two delegates, one
// to call the real PowerUp method and one for the callback
// method.
internal void PowerUp(ToggleSystemPower powerUpProcess,
PowerUpComplete callbackMethod)
{
// Call the PowerUp process.
powerUpProcess();
// Now call the callback method to notify the client code
// that the reading process is done.
callbackMethod();
}
private bool RunOperation(string operation, string controlOperator)
{
bool success = false;
string systemOperation = operation.ToUpper();
systemOperation = systemOperation.Substring(0, 1);
switch (systemOperation)
{
case "1": // Turn on the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerUp);
togglePower(controlOperator);
success = true;
}
break;
case "2": // Turn off the system.
if (HWTSystem != null)
{
// Traditional approach to creating an instance of a delegate.
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerDown);
// Use delegate inference for creating an instance of a delegate
// to simplify code.
//ToggleSystemPower togglePower = HWTSystem.PowerDown;
togglePower(controlOperator);
success = false;
}
break;
case "3": // Purge hot water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager(controlOperator))
{
success = true;
}
}
break;
case "4": // Fill cold water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferColdWaterIn);
if (manager(controlOperator))
{
success = true;
}
}
break;
case "X": // Exit the control program.
ExitSystem = true;
success = true;
break;
default:
Console.WriteLine("Menu option {0} is not valid.",
operation);
break;
}
return success;
}
//private void DisplayMenu()
//{
// Console.WriteLine();
// Console.WriteLine("Hot Water Transfer System Control Menu");
// Console.WriteLine();
// Console.WriteLine("\t1. Turn on system");
// Console.WriteLine("\t2. Turn off system");
// Console.WriteLine("\t3. Purge hot water from system");
// Console.WriteLine("\t4. Fill system with cold water");
// Console.WriteLine("\tX. Exit HWTS control program");
// Console.WriteLine();
// Console.Write("Enter option: ");
//}
private bool RunOperation(string operation)
{
bool success = false;
string systemOperation = operation.ToUpper();
systemOperation = systemOperation.Substring(0, 1);
switch (systemOperation)
{
case "1": // Turn on the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerUp);
togglePower();
success = true;
}
break;
case "2": // Turn off the system.
if (HWTSystem != null)
{
ToggleSystemPower togglePower =
new ToggleSystemPower(HWTSystem.PowerDown);
togglePower();
success = false;
}
break;
case "3": // Purge hot water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferHotWaterOut);
if (manager())
{
success = true;
}
}
break;
case "4": // Fill cold water.
if (HWTSystem != null)
{
ManageWater manager =
new ManageWater(HWTSystem.TransferColdWaterIn);
if (manager())
{
success = true;
}
}
break;
case "X": // Exit the control program.
ExitSystem = true;
success = true;
break;
default:
Console.WriteLine("Menu option {0} is not valid.",
operation);
break;
}
return success;
}
