protected internal virtual TransitionInstanceImpl CreateTransitionInstance(PvmExecutionImpl execution)
{
TransitionInstanceImpl transitionInstance = new TransitionInstanceImpl();
// can use execution id as persistent ID for transition as an execution
// can execute as most one transition at a time.
transitionInstance.Id = execution.Id;
transitionInstance.ParentActivityInstanceId = execution.ParentActivityInstanceId;
transitionInstance.ProcessInstanceId = execution.ProcessInstanceId;
transitionInstance.ProcessDefinitionId = execution.ProcessDefinitionId;
transitionInstance.ExecutionId = execution.Id;
transitionInstance.ActivityId = execution.ActivityId;
ActivityImpl activity = (ActivityImpl)execution.Activity;
if (activity != null)
{
string name = activity.Name;
if (string.IsNullOrEmpty(name))
{
name = (string)activity.GetProperty("name");
}
transitionInstance.ActivityName = name;
transitionInstance.ActivityType = (string)activity.GetProperty("type");
}
return(transitionInstance);
}
public virtual ActivityInstanceTreeBuilder Transition(string activityId)
{
TransitionInstanceImpl newInstance = new TransitionInstanceImpl();
newInstance.ActivityId = activityId;
ActivityInstanceImpl parentInstance = ActivityInstanceStack.Peek();
IList <ITransitionInstance> childInstances = new List <ITransitionInstance>((parentInstance.ChildTransitionInstances));
childInstances.Add(newInstance);
parentInstance.ChildTransitionInstances = childInstances.ToArray();
return(this);
}
static AbstractRestServiceTest()
{
EXAMPLE_VARIABLES.putValueTyped(EXAMPLE_VARIABLE_KEY, EXAMPLE_VARIABLE_VALUE);
EXAMPLE_VARIABLES_WITH_NULL_VALUE.putValueTyped(EXAMPLE_ANOTHER_VARIABLE_KEY, Variables.untypedNullValue());
ActivityInstanceImpl instance = (ActivityInstanceImpl)EXAMPLE_ACTIVITY_INSTANCE;
instance.Id = EXAMPLE_ACTIVITY_INSTANCE_ID;
instance.ParentActivityInstanceId = EXAMPLE_PARENT_ACTIVITY_INSTANCE_ID;
instance.ActivityId = EXAMPLE_ACTIVITY_ID;
instance.ActivityType = CHILD_EXAMPLE_ACTIVITY_TYPE;
instance.ActivityName = EXAMPLE_ACTIVITY_NAME;
instance.ProcessInstanceId = EXAMPLE_PROCESS_INSTANCE_ID;
instance.ProcessDefinitionId = EXAMPLE_PROCESS_DEFINITION_ID;
instance.BusinessKey = EXAMPLE_BUSINESS_KEY;
instance.ExecutionIds = new string[] { EXAMPLE_EXECUTION_ID };
ActivityInstanceImpl childActivity = new ActivityInstanceImpl();
childActivity.Id = CHILD_EXAMPLE_ACTIVITY_INSTANCE_ID;
childActivity.ParentActivityInstanceId = CHILD_EXAMPLE_PARENT_ACTIVITY_INSTANCE_ID;
childActivity.ActivityId = CHILD_EXAMPLE_ACTIVITY_ID;
childActivity.ActivityName = CHILD_EXAMPLE_ACTIVITY_NAME;
childActivity.ActivityType = CHILD_EXAMPLE_ACTIVITY_TYPE;
childActivity.ProcessInstanceId = CHILD_EXAMPLE_PROCESS_INSTANCE_ID;
childActivity.ProcessDefinitionId = CHILD_EXAMPLE_PROCESS_DEFINITION_ID;
childActivity.BusinessKey = CHILD_EXAMPLE_BUSINESS_KEY;
childActivity.ExecutionIds = new string[] { EXAMPLE_EXECUTION_ID };
childActivity.ChildActivityInstances = new ActivityInstance[0];
childActivity.ChildTransitionInstances = new TransitionInstance[0];
TransitionInstanceImpl childTransition = new TransitionInstanceImpl();
childTransition.Id = CHILD_EXAMPLE_ACTIVITY_INSTANCE_ID;
childTransition.ParentActivityInstanceId = CHILD_EXAMPLE_PARENT_ACTIVITY_INSTANCE_ID;
childTransition.ActivityId = CHILD_EXAMPLE_ACTIVITY_ID;
childTransition.ActivityName = CHILD_EXAMPLE_ACTIVITY_NAME;
childTransition.ActivityType = CHILD_EXAMPLE_ACTIVITY_TYPE;
childTransition.ProcessInstanceId = CHILD_EXAMPLE_PROCESS_INSTANCE_ID;
childTransition.ProcessDefinitionId = CHILD_EXAMPLE_PROCESS_DEFINITION_ID;
childTransition.ExecutionId = EXAMPLE_EXECUTION_ID;
instance.ChildActivityInstances = new ActivityInstance[] { childActivity };
instance.ChildTransitionInstances = new TransitionInstance[] { childTransition };
}
public virtual IActivityInstance Execute(CommandContext commandContext)
{
EnsureUtil.EnsureNotNull("processInstanceId", ProcessInstanceId);
IList <ExecutionEntity> executionList = LoadProcessInstance(ProcessInstanceId, commandContext);
if (executionList.Count == 0)
{
return(null);
}
CheckGetActivityInstance(ProcessInstanceId, commandContext);
IList <ExecutionEntity> nonEventScopeExecutions = FilterNonEventScopeExecutions(executionList);
IList <ExecutionEntity> leaves = FilterLeaves(nonEventScopeExecutions);//.OrderBy(m => m.Id).ToList();
// Leaves must be ordered in a predictable way (e.g. by ID)
// in order to return a stable execution tree with every repeated invocation of this command.
// For legacy process instances, there may miss scope executions for activities that are now a scope.
// In this situation, there may be multiple scope candidates for the same instance id; which one
// can depend on the order the leaves are iterated.
OrderById(leaves);
ExecutionEntity processInstance = FilterProcessInstance(executionList);
if (processInstance.IsEnded)
{
return(null);
}
//create act instance for process instance
ActivityInstanceImpl processActInst = CreateActivityInstance(processInstance, processInstance.ProcessDefinition, ProcessInstanceId, null);
IDictionary <string, ActivityInstanceImpl> activityInstances = new Dictionary <string, ActivityInstanceImpl>();
activityInstances[ProcessInstanceId] = processActInst;
IDictionary <string, TransitionInstanceImpl> transitionInstances = new Dictionary <string, TransitionInstanceImpl>();
foreach (ExecutionEntity leaf in leaves)
{
// skip leafs without activity, e.g. if only the process instance exists after cancellation
// it will not have an activity set
if (leaf.Activity == null)
{
continue;
}
IDictionary <ScopeImpl, PvmExecutionImpl> activityExecutionMapping = leaf.CreateActivityExecutionMapping();
IDictionary <ScopeImpl, PvmExecutionImpl> scopeInstancesToCreate = new Dictionary <ScopeImpl, PvmExecutionImpl>(activityExecutionMapping);
// create an activity/transition instance for each leaf that executes a non-scope activity
// and does not throw compensation
if (leaf.ActivityInstanceId != null)
{
if (!CompensationBehavior.IsCompensationThrowing(leaf) || LegacyBehavior.IsCompensationThrowing(leaf, activityExecutionMapping))
{
string parentActivityInstanceId = null;
parentActivityInstanceId = activityExecutionMapping[leaf.Activity.FlowScope].ParentActivityInstanceId;
ActivityInstanceImpl leafInstance = CreateActivityInstance(leaf, (ScopeImpl)leaf.Activity, leaf.ActivityInstanceId, parentActivityInstanceId);
activityInstances[leafInstance.Id] = leafInstance;
scopeInstancesToCreate.Remove((ScopeImpl)leaf.Activity);
}
}
else
{
TransitionInstanceImpl transitionInstance = CreateTransitionInstance(leaf);
transitionInstances[transitionInstance.Id] = transitionInstance;
scopeInstancesToCreate.Remove((ScopeImpl)leaf.Activity);
}
LegacyBehavior.RemoveLegacyNonScopesFromMapping(scopeInstancesToCreate);
scopeInstancesToCreate.Remove(leaf.ProcessDefinition);
// create an activity instance for each scope (including compensation throwing executions)
foreach (KeyValuePair <ScopeImpl, PvmExecutionImpl> scopeExecutionEntry in scopeInstancesToCreate)
{
ScopeImpl scope = scopeExecutionEntry.Key;
PvmExecutionImpl scopeExecution = scopeExecutionEntry.Value;
string activityInstanceId = null;
string parentActivityInstanceId = null;
activityInstanceId = scopeExecution.ParentActivityInstanceId;
parentActivityInstanceId = activityExecutionMapping[scope.FlowScope].ParentActivityInstanceId;
if (activityInstances.ContainsKey(activityInstanceId))
{
continue;
}
else
{
// regardless of the tree structure (compacted or not), the scope's activity instance id
// is the activity instance id of the parent execution and the parent activity instance id
// of that is the actual parent activity instance id
ActivityInstanceImpl scopeInstance = CreateActivityInstance(scopeExecution, scope, activityInstanceId, parentActivityInstanceId);
activityInstances[activityInstanceId] = scopeInstance;
}
}
}
LegacyBehavior.RepairParentRelationships(activityInstances.Values, ProcessInstanceId);
PopulateChildInstances(activityInstances, transitionInstances);
return(processActInst);
}
