CoreandServices.book - Ocean - Schlumberger

CoreSystem Class
SystemStateChanged Event
The Ocean Core will send a SystemStateChanged event whenever the state of the
system changes. The SystemStateChanged event reference will contain the current
state of the system.
...
public HelloOceanModule()
{
// Set up event handler for SystemStateChanged
CoreSystem.SystemStateChanged += new
EventHandler(CoreSystem_SystemStateChanged);
}
void CoreSystem_SystemStateChanged(object sender,
SystemStateEventArgs e)
{
...
//Take action if system is in running state
if (e.State.Equals(SystemState.Running))
{
// load a module dynamically
ModuleReferenceCollection col = new ModuleReferenceCollection();
// define module. string is Namespace.TypeName, AssemblyName
string anotherOceanModule =
"OceanLabs.HelloOcean.AnotherOceanModule, HelloOceanModule";
}
}
// add module to the system
col.AddModule(anotherOceanModule);
CoreSystem.AddModules(col, ”MyModuleTrust”);
SynchronizeInvoke Property
The SynchronizeInvoke property provides a way to synchronously or asynchronously
execute a delegate on the main thread of the application. Using ISynchronizeInvoke
will transfer control from a worker thread to the main thread by queuing the worker thread
delegate on the main loop. You should note that, in Petrel, ISynchronizeInvoke is not
3-50 Ocean Application Development Framework 2008.1
Schlumberger Private