static void Main(string[] args)
{
var piSystem = new PISystems()[piSystemName];
if (!piSystem.ConnectionInfo.IsConnected)
{
if (string.IsNullOrEmpty(piSystemUser))
{
piSystem.Connect();
}
else
{
var creds = new NetworkCredential(piSystemUser, piSystemPass, piSystemDomain);
piSystem.Connect(creds);
}
}
if (piSystem.ConnectionInfo.IsConnected)
{
Console.WriteLine($"Connected to PI System '{piSystem.Name}' (GUID='{piSystem.ID}')");
if (piSystem.Databases.Contains(piSystemDatabase))
{
var afDatabase = piSystem.Databases[piSystemDatabase];
Console.WriteLine($"Connected to AF Database '{afDatabase.Name}' (GUID='{afDatabase.ID}')");
// Do stuff here...
object sysCookie = piSystem.GetFindChangedItemsCookie(searchSandbox: false);
for (int i = 0; i < 100; i++)
{
Console.WriteLine("Checking for changes...");
List <AFChangeInfo> list = new List <AFChangeInfo>();
int resultsPerPage = 1000;
while (true)
{
var results = piSystem.FindChangedItems(false, true, resultsPerPage, sysCookie, out sysCookie);
if ((results?.Count ?? 0) == 0)
{
break;
}
list.AddRange(results);
}
// Refresh objects that have been changed.
AFChangeInfo.Refresh(piSystem, list);
// Find the objects that have been changed.
foreach (AFChangeInfo info in list)
{
try
{
AFObject myObj = info.FindObject(piSystem, true);
Console.WriteLine("Found changed object: {0}", myObj.ToString());
Console.WriteLine("Identity: " + myObj.Identity.ToString());
Console.WriteLine("Action = " + info.Action);
Console.WriteLine("Change Time = " + info.ChangeTime);
Console.WriteLine("Value Updated = " + info.IsValueUpdate);
Console.WriteLine("Parent ID = " + info.ParentID);
Console.WriteLine("Parent = " + ((info.ParentID == Guid.Empty) ? "NONE" : AFElement.FindElement(piSystem, info.ParentID).GetPath()));
Console.WriteLine(" ");
}
catch { }
}
System.Threading.Thread.Sleep(5000);
}
}
else
{
Console.WriteLine($"PI System Database '{piSystemDatabase}' does not exist.");
}
}
else
{
Console.WriteLine($"Cannot connect to PI System '{piSystemName}'.");
}
}
