protected void ProcessStateChange(LocalPluginContext context)
{
var target = context.GetTarget <dlab_AutoNumbering>();
switch (target.statecode)
{
case dlab_AutoNumberingState.Active:
// Register Plugin if it doesn't exist
context.Trace("Processing Active State Request");
var settings = context.OrganizationService.GetEntity <dlab_AutoNumbering>(context.PrimaryEntity.Id);
if (settings.dlab_PluginStepId == null || context.SystemOrganizationService.GetEntityOrDefault <SdkMessageProcessingStep>(Guid.Parse(settings.dlab_PluginStepId)) == null)
{
RegisterIncrementor(context);
}
break;
case dlab_AutoNumberingState.Inactive:
// Unregister Plugin
context.Trace("Processing In-Active State Request");
UnregisterIncrementor(context);
break;
case null:
context.Trace("Processing Non-State Related Change");
AssertNonDuplicateId(context, target);
break;
default:
throw new EnumCaseUndefinedException <dlab_AutoNumberingState>(target.statecode.GetValueOrDefault());
}
}
protected override void ExecuteInternal(LocalPluginContext context)
{
var target = context.GetTarget <Entity>();
var autoNumberManagers = AutoNumberManagersByEntity.GetOrAddSafe(_settingLock, target.LogicalName,
logicalName =>
context.SystemOrganizationService.GetEntities <dlab_AutoNumbering>(
dlab_AutoNumbering.Fields.dlab_EntityName, logicalName).
Select(s => new AutoNumberManager(s)).ToArray());
if (autoNumberManagers.Length == 0)
{
throw new InvalidPluginExecutionException("No Auto-Number Settings found for Entity " +
target.LogicalName);
}
// ReSharper disable once ForCanBeConvertedToForeach - Not sure if a foreach enumeration is thread safe
for (var i = 0; i < autoNumberManagers.Length; i++)
{
var manager = autoNumberManagers[i];
// Lock here so the settings entity won't be updated in the middle of processing the record
lock (manager)
{
SetAutoNumber(context, target, manager);
}
}
}
protected void UnregisterIncrementor(LocalPluginContext context)
{
var settings = context.OrganizationService.GetEntity<dlab_AutoNumbering>(context.PrimaryEntity.Id);
Guid pluginStepId;
if (string.IsNullOrWhiteSpace(settings.dlab_PluginStepId) || !Guid.TryParse(settings.dlab_PluginStepId, out pluginStepId))
{
return;
}
context.SystemOrganizationService.TryDelete(SdkMessageProcessingStep.EntityLogicalName, pluginStepId);
if (context.Event.Message == MessageType.Delete)
{
return;
}
// Could be called from deactivate update. Clear Plugin Setp
var target = context.GetTarget<dlab_AutoNumbering>();
target.dlab_PluginStepId = null;
}
protected void RegisterIncrementor(LocalPluginContext context)
{
var settings = context.CoallesceTargetWithPreEntity<dlab_AutoNumbering>();
var createMessage = GetCreateMessageId(context);
var messageProcessingStep = new SdkMessageProcessingStep
{
ModeEnum = sdkmessageprocessingstep_mode.Synchronous,
Name = $"IdGenerator for the {settings.dlab_EntityName} Entity",
Rank = settings.dlab_PluginExecutionOrder.GetValueOrDefault(1),
SdkMessageId = createMessage,
SdkMessageFilterId = GetMessageFilterId(context, settings.EntityName, createMessage.Id),
EventHandler = GetPluginId(context),
StageEnum = sdkmessageprocessingstep_stage.Preoperation,
SupportedDeploymentEnum = sdkmessageprocessingstep_supporteddeployment.ServerOnly
};
var target = context.GetTarget<dlab_AutoNumbering>();
target.dlab_PluginStepId = context.SystemOrganizationService.Create(messageProcessingStep).ToString();
}