def fallinWorkitem(self, instance_id, workitem_id, process_id, activity_id, REQUEST=None, coming_from=None):
""" the exceptional specified workitem (of the specified instance) will be put back in the activity
specified by process_id and activity_id; workitem will still be in exceptional state:
use endFallinWorkitem API to specify the end of the exceptional state"""
instance = getattr(self, instance_id)
workitem_from = getattr(instance, workitem_id)
if workitem_from.status=='fallout':
push_roles = getattr(getattr(self,process_id),activity_id).getPushRoles()
pull_roles = getattr(getattr(self,process_id),activity_id).getPullRoles()
workitem_to = instance.addWorkitem(process_id, activity_id, 0, push_roles, pull_roles)
self.linkWorkitems(instance_id, workitem_id, [workitem_to.id])
event = 'fallin to activity ' + activity_id + ' in process ' + process_id + \
' (workitem ' + str(workitem_to.id) + ')'
workitem_from.addEvent(event)
event = 'fallin from activity ' + workitem_from.activity_id + \
' in process ' + workitem_from.process_id + \
' (workitem ' + str(workitem_id) + ')'
workitem_to.addEvent(event)
self.manageWorkitemCreation(instance_id, workitem_to.id)
else:
raise "WorkitemActionError","Wrong workitem enviroment"
if REQUEST:
if coming_from is not None:
REQUEST.RESPONSE.redirect(coming_from)
else:
REQUEST.RESPONSE.redirect(REQUEST.HTTP_REFERER)
def startSubflow(self, instance_id, workitem_id, REQUEST=None):
instance, workitem, process, activity = self.getEnvironment(instance_id, workitem_id)
self.activateWorkitem(instance_id, workitem_id)
self.assignWorkitem(instance_id, workitem_id, 'Engine')
subflow_id = activity.subflow
begin_activity_id = getattr(self, subflow_id).begin
push_roles = getattr(getattr(self,process.id),activity.id).getPushRoles()
pull_roles = getattr(getattr(self,process.id),activity.id).getPullRoles()
w = instance.addWorkitem(subflow_id, begin_activity_id, 0, push_roles, pull_roles)
self.linkWorkitems(instance_id, workitem_id, [w.id])
self.manageWorkitemCreation(instance_id, w.id)
def forwardWorkitem(self, instance_id, workitem_id, path=None, REQUEST=None):
""" instructs openflow to forward the specified workitem """
instance, workitem, process, activity = self.getEnvironment(instance_id, workitem_id)
if REQUEST:
if not REQUEST.AUTHENTICATED_USER.getUserName() == workitem.actor:
raise "WorkitemActionError","Invalid Workflow Actor"
destinations = self.getDestinations(instance_id, workitem_id, path)
new_workitems = []
if instance.isActiveOrRunning() and \
(workitem.status == 'complete' and not workitem.forwarded) and \
not self.isEnd(workitem.process_id, workitem.activity_id):
activity_to_id_list = map(lambda x : x['activity_to_id'], destinations)
workitem.addEvent('forwarded to '+ reduce(lambda x, y : x+', '+y, activity_to_id_list))
workitem_to_id_list = []
for d in destinations:
w = instance.getJoiningWorkitem(workitem_id, self)
if w:
w.unblock()
workitem_to_id_list.append(w.id)
else:
process_id = d['process_to_id']
activity_id = d['activity_to_id']
push_roles = getattr(getattr(self,process_id),activity_id).getPushRoles()
pull_roles = getattr(getattr(self,process_id),activity_id).getPullRoles()
w = instance.addWorkitem(process_id,
activity_id,
d['blocked_init'],
push_roles,
pull_roles)
workitem_to_id_list.append(w.id)
if w.blocked == 0:
new_workitems.append(w.id)
w.addEvent('arrival from ' + workitem.activity_id)
# indented with for
self.linkWorkitems(instance_id, workitem_id, workitem_to_id_list)
elif (workitem.status == 'complete' and not workitem.forwarded) and \
self.isEnd(workitem.process_id, workitem.activity_id):
pass
else:
msg=" wid: "+workitem.id+" act_id: "+workitem.activity_id
msg=msg+" status:"+workitem.status+" forwarded:"+str(workitem.forwarded)
raise "WorkitemActionError","Wrong workitem enviroment"+msg
for w in new_workitems:
self.manageWorkitemCreation(instance_id, w)
workitem.forwarded=1
if REQUEST: REQUEST.RESPONSE.redirect(REQUEST.HTTP_REFERER)
def startInstance(self, instance_id, REQUEST=None):
""" Starts the flowing of the process instance inside the process definition """
instance = getattr(self, instance_id)
if instance.status == 'initiated':
if REQUEST:
actor=REQUEST.AUTHENTICATED_USER.getUserName()
else:
actor='Engine'
instance.setStatus(status='running', actor=actor)
process_id = instance.begin_process_id
activity_id = instance.begin_activity_id
push_roles = getattr(getattr(self,process_id),activity_id).getPushRoles()
pull_roles = getattr(getattr(self,process_id),activity_id).getPullRoles()
w = instance.addWorkitem(process_id, activity_id, 0, push_roles, pull_roles)
self.manageWorkitemCreation(instance_id, w.id)
if REQUEST: REQUEST.RESPONSE.redirect(REQUEST.HTTP_REFERER)
else:
raise "InstanceActionError","Instance in wrong status"
