To continue my series of Workflow utility methods, today I'm presenting a way to retrieve the next Activity Definition, relative to the current Activity in the Workflow Process.
Alternatively, you can retrieve a next ActivityDefinition by name, where name is the ActivityDefinition title that we are looking for:
For the code-above we need to know the CurrentWorkItem, which is the WorkItem of the current item in the workflow.
The code above is part of YAWF (Yet Another Workflow Framework).
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///<summary>
/// Return the next activity definition, if there is one.
///</summary>
///<returns></returns>
protectedActivityDefinitionGetNextActivityDefinition() {
ActivityInstance activityInstance = CurrentWorkItem.Activity asActivityInstance;
TridionActivityDefinition activityDefinition = activityInstance.ActivityDefinition asTridionActivityDefinition;
ProcessDefinition processDefinition = activityDefinition.ProcessDefinition;
IList<ActivityDefinition> activityDefinitions = newList<ActivityDefinition>(processDefinition.ActivityDefinitions);
IList<TridionActivityDefinition> nextActivities = null;
foreach (TridionActivityDefinitiontridionActivityDefinition inactivityDefinitions) {
if(tridionActivityDefinition.Id.Equals(activityDefinition.Id)) {
nextActivities = tridionActivityDefinition.NextActivityDefinitions;
if (nextActivities == null|| nextActivities.Count == 0) {
Logger.Warn("GetNextActivityDefinition: Current Activity does not have a next Activity. It is the last one.");
} elseif(nextActivities.Count > 1) {
Logger.Warn("GetNextActivityDefinition: Current Activity is a decision. It has more than 1 next Activity.");
} else {
return nextActivities[0];
}
}
}
returnnull;
}
///<summary>
/// Return the next activity definition by name, if there is one.
///</summary>
///<returns></returns>
protectedActivityDefinitionGetNextActivityDefinition(String name) {
ActivityInstance activityInstance = CurrentWorkItem.Activity asActivityInstance;
TridionActivityDefinition activityDefinition = activityInstance.ActivityDefinition asTridionActivityDefinition;
IList<TridionActivityDefinition> nextActivities = activityDefinition.NextActivityDefinitions;
if (nextActivities == null) {
Logger.Warn("GetNextActivityDefinition: Current Activity does not have a next Activity. It is the last one.");
} else {
foreach (ActivityDefinitionactivity in nextActivities) {
if (activity.Title.Equals(name)) {
Logger.Debug("GetNextActivityDefinition: Found activity " + activity + " by name.");
return activity;
}
}
}
Logger.Warn("GetNextActivityDefinition: Cannot find next Activity by name.");
returnnull;
}
For the code-above we need to know the CurrentWorkItem, which is the WorkItem of the current item in the workflow.
The code above is part of YAWF (Yet Another Workflow Framework).
