/// <summary>
/// Applies changes since the most recent apply.
/// </summary>
/// <returns> true if changes can be applied. </returns>
public bool CanApplyChanges()
{
ManagementObjectSearcher ServiceQuery = new ManagementObjectSearcher
("Select * from Win32_Service Where DisplayName ='" + serviceResultNode.DisplayName + "'");
object[] parameters = new object[1];
parameters[0] = ComboBoxStartupType.SelectedItem.ToString();
foreach (ManagementObject ServiceObject in ServiceQuery.Get())
{
ServiceObject.InvokeMethod("ChangeStartMode", parameters);
}
serviceResultNode.SubItemDisplayNames[2] = ComboBoxStartupType.SelectedItem.ToString();
return(true);
}
/// <summary>
/// Handles MessageReceived events of all clients, evaluates each message, finds appropriate
/// service object and invokes appropriate method.
/// </summary>
/// <param name="sender">Source of event</param>
/// <param name="e">Event arguments</param>
private void Client_MessageReceived(object sender, MessageEventArgs e)
{
// Get RequestReplyMessenger object (sender of event) to get client
RequestReplyMessenger <IScsServerClient> requestReplyMessenger = (RequestReplyMessenger <IScsServerClient>)sender;
// Cast message to ScsRemoteInvokeMessage and check it
if (!(e.Message is ScsRemoteInvokeMessage invokeMessage))
{
return;
}
try
{
// Get client object
IScsServiceClient client = _serviceClients[requestReplyMessenger.Messenger.ClientId];
if (client == null)
{
requestReplyMessenger.Messenger.Disconnect();
return;
}
// Get service object
ServiceObject serviceObject = _serviceObjects[invokeMessage.ServiceClassName];
if (serviceObject == null)
{
SendInvokeResponse(requestReplyMessenger, invokeMessage, null, new ScsRemoteException("There is no service with name '" + invokeMessage.ServiceClassName + "'"));
return;
}
// Invoke method
try
{
// Set client to service, so user service can get client in service method using
// CurrentClient property.
object returnValue;
serviceObject.Service.CurrentClient = client;
try
{
returnValue = serviceObject.InvokeMethod(invokeMessage.MethodName, invokeMessage.Parameters);
}
finally
{
// Set CurrentClient as null since method call completed
serviceObject.Service.CurrentClient = null;
}
// Send method invocation return value to the client
SendInvokeResponse(requestReplyMessenger, invokeMessage, returnValue, null, invokeMessage.Parameters);
}
catch (TargetInvocationException ex)
{
Exception innerEx = ex.InnerException;
if (innerEx != null)
{
SendInvokeResponse(requestReplyMessenger, invokeMessage, null, new ScsRemoteInvocationException(invokeMessage.ServiceClassName, serviceObject.ServiceAttribute?.Version ?? "", invokeMessage.MethodName, innerEx.Message, innerEx));
}
}
catch (Exception ex)
{
SendInvokeResponse(requestReplyMessenger, invokeMessage, null, new ScsRemoteInvocationException(invokeMessage.ServiceClassName, serviceObject.ServiceAttribute?.Version ?? "", invokeMessage.MethodName, ex.Message, ex));
}
}
catch (Exception ex)
{
SendInvokeResponse(requestReplyMessenger, invokeMessage, null, new ScsRemoteException("An error occured during remote service method call.", ex));
}
}
/// <summary>
/// OnSelectionAction method handles the execution of a selection-dependent action.
/// </summary>
/// <param name="action">The executed action.</param>
/// <param name="status">The object that holds the status information.</param>
protected override void OnSelectionAction(Action action, AsyncStatus status)
{
ManagementObjectSearcher ServiceQuery = new ManagementObjectSearcher
("Select * from Win32_Service Where DisplayName = '" + SelectedNodes[0].DisplayName + "'");
string actionString = action.Tag as string;
if (actionString != null)
{
switch (actionString)
{
case "Start":
{
foreach (ManagementObject ServiceObject in ServiceQuery.Get())
{
ServiceObject.InvokeMethod("StartService", null);
}
SelectedNodes[0].SubItemDisplayNames[1] = "Started";
((Action)SelectionData.ActionsPaneItems[0]).Enabled = false;
((Action)SelectionData.ActionsPaneItems[3]).Enabled = false;
}
break;
case "Stop":
{
foreach (ManagementObject ServiceObject in ServiceQuery.Get())
{
ServiceObject.InvokeMethod("StopService", null);
}
SelectedNodes[0].SubItemDisplayNames[1] = "Stopped";
((Action)SelectionData.ActionsPaneItems[1]).Enabled = false;
((Action)SelectionData.ActionsPaneItems[2]).Enabled = false;
((Action)SelectionData.ActionsPaneItems[3]).Enabled = false;
}
break;
case "Pause":
{
foreach (ManagementObject ServiceObject in ServiceQuery.Get())
{
ServiceObject.InvokeMethod("PauseService", null);
}
SelectedNodes[0].SubItemDisplayNames[1] = "Paused";
((Action)SelectionData.ActionsPaneItems[0]).Enabled = false;
((Action)SelectionData.ActionsPaneItems[2]).Enabled = false;
}
break;
case "Resume":
{
foreach (ManagementObject ServiceObject in ServiceQuery.Get())
{
ServiceObject.InvokeMethod("ResumeService", null);
}
SelectedNodes[0].SubItemDisplayNames[1] = "Started";
((Action)SelectionData.ActionsPaneItems[0]).Enabled = false;
((Action)SelectionData.ActionsPaneItems[3]).Enabled = false;
}
break;
case "Properties":
{
SelectionData.ShowPropertySheet("Service Properties");
}
break;
}
}
}
