public override void Execute(IExecutionEntity execution)
{
string finalProcessDefinitonKey;
if (processDefinitionExpression != null)
{
finalProcessDefinitonKey = (string)processDefinitionExpression.GetValue(execution);
}
else
{
finalProcessDefinitonKey = processDefinitonKey;
}
IProcessDefinition processDefinition = FindProcessDefinition(finalProcessDefinitonKey, execution.TenantId);
// Get model from cache
Process subProcess = ProcessDefinitionUtil.GetProcess(processDefinition.Id);
if (subProcess == null)
{
throw new ActivitiException("Cannot start a sub process instance. Process model " + processDefinition.Name + " (id = " + processDefinition.Id + ") could not be found");
}
FlowElement initialFlowElement = subProcess.InitialFlowElement;
if (initialFlowElement == null)
{
throw new ActivitiException("No start element found for process definition " + processDefinition.Id);
}
// Do not start a process instance if the process definition is suspended
if (ProcessDefinitionUtil.IsProcessDefinitionSuspended(processDefinition.Id))
{
throw new ActivitiException("Cannot start process instance. Process definition " + processDefinition.Name + " (id = " + processDefinition.Id + ") is suspended");
}
ProcessEngineConfigurationImpl processEngineConfiguration = Context.ProcessEngineConfiguration;
IExecutionEntityManager executionEntityManager = Context.CommandContext.ExecutionEntityManager;
ExpressionManager expressionManager = processEngineConfiguration.ExpressionManager;
CallActivity callActivity = (CallActivity)execution.CurrentFlowElement;
string businessKey = null;
if (!string.IsNullOrWhiteSpace(callActivity.BusinessKey))
{
IExpression expression = expressionManager.CreateExpression(callActivity.BusinessKey);
businessKey = expression.GetValue(execution).ToString();
}
else if (callActivity.InheritBusinessKey)
{
IExecutionEntity processInstance = executionEntityManager.FindById <IExecutionEntity>(execution.ProcessInstanceId);
businessKey = processInstance.BusinessKey;
}
IExecutionEntity subProcessInstance = Context.CommandContext.ExecutionEntityManager.CreateSubprocessInstance(processDefinition, execution, businessKey);
Context.CommandContext.HistoryManager.RecordSubProcessInstanceStart(execution, subProcessInstance, initialFlowElement);
// process template-defined data objects
IDictionary <string, object> variables = ProcessDataObjects(subProcess.DataObjects);
if (callActivity.InheritVariables)
{
IDictionary <string, object> executionVariables = execution.Variables;
foreach (KeyValuePair <string, object> entry in executionVariables.SetOfKeyValuePairs())
{
variables[entry.Key] = entry.Value;
}
}
// copy process variables
foreach (IOParameter ioParameter in callActivity.InParameters)
{
object value = null;
if (!string.IsNullOrWhiteSpace(ioParameter.SourceExpression))
{
IExpression expression = expressionManager.CreateExpression(ioParameter.SourceExpression.Trim());
value = expression.GetValue(execution);
}
else
{
value = execution.GetVariable(ioParameter.Source);
}
variables[ioParameter.Target] = value;
}
if (variables.Count > 0)
{
InitializeVariables(subProcessInstance, variables);
}
// Create the first execution that will visit all the process definition elements
IExecutionEntity subProcessInitialExecution = executionEntityManager.CreateChildExecution(subProcessInstance);
subProcessInitialExecution.CurrentFlowElement = initialFlowElement;
Context.Agenda.PlanContinueProcessOperation(subProcessInitialExecution);
Context.ProcessEngineConfiguration.EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateProcessStartedEvent(subProcessInitialExecution, variables, false));
}
public virtual bool Execute(ICommandContext commandContext)
{
return(ProcessDefinitionUtil.IsProcessDefinitionSuspended(processDefinitionId));
}