/**
* Takes the initial distribution set of participants, then expands any roles and/or dynamic
* parameters to their 'set of participants' equivalents, then applies the specified filters
* and/or constraints, and returns the final distribution set of participants.
*
* @param wir the workitem being offered
* @return the final distribution set of Participant objects
*/
public Set<Participant> performOffer(WorkItemRecord wir) {
_distributionSet = new HashSet<Participant>();
// if familiar task specified, get the participant(s) who completed that task,
// & offer this item to them - no more to do
if (_familiarParticipantTask != null) {
Set<Participant> pSet = _rm.getWhoCompletedTask(_familiarParticipantTask, wir);
if (pSet != null) _distributionSet.addAll(pSet);
} else {
// make sure each participant is added only once
ArrayList<String> uniqueIDs = new ArrayList<String>();
// add Participants
for (Participant p : _participants) {
uniqueIDs.add(p.getID());
_distributionSet.add(p);
}
// add roles
for (Role role : _roles) {
Set<Participant> pSet = _rm.getOrgDataSet().castToParticipantSet(role.getResources());
pSet.addAll(_rm.getOrgDataSet().getParticipantsInDescendantRoles(role));
for (Participant p : pSet) {
addParticipantToDistributionSet(_distributionSet, uniqueIDs, p);
}
}
// add dynamic params
for (DynParam param : _dynParams) {
Set<Participant> pSet = param.evaluate(wir);
for (Participant p : pSet) {
addParticipantToDistributionSet(_distributionSet, uniqueIDs, p);
}
}
// apply each filter
for (AbstractFilter filter : _filters)
_distributionSet = (HashSet<Participant>) filter.performFilter(_distributionSet);
// apply each constraint
for (AbstractConstraint constraint : _constraints)
_distributionSet =
(HashSet<Participant>) constraint.performConstraint(_distributionSet, wir);
}
// ok - got our final set
return _distributionSet;
}
