Examples with DelegateCaseVariableInstanceImpl org.camunda.bpm.engine.impl.variable.listener.DelegateCaseVariableInstanceImpl used on opensource projects

Example 1 with DelegateCaseVariableInstanceImpl

use of org.camunda.bpm.engine.impl.variable.listener.DelegateCaseVariableInstanceImpl in project camunda-bpm-platform by camunda.

the class CmmnExecution method invokeVariableListeners.

protected void invokeVariableListeners(boolean includeCustomerListeners) {
    Queue<VariableEvent> variableEventsQueue = getVariableEventQueue();
    while (!variableEventsQueue.isEmpty()) {
        // do not remove the event yet, as otherwise new events will immediately be dispatched
        VariableEvent nextEvent = variableEventsQueue.peek();
        CmmnExecution sourceExecution = (CmmnExecution) nextEvent.getSourceScope();
        DelegateCaseVariableInstanceImpl delegateVariable = DelegateCaseVariableInstanceImpl.fromVariableInstance(nextEvent.getVariableInstance());
        delegateVariable.setEventName(nextEvent.getEventName());
        delegateVariable.setSourceExecution(sourceExecution);
        Map<String, List<VariableListener<?>>> listenersByActivity = sourceExecution.getActivity().getVariableListeners(delegateVariable.getEventName(), includeCustomerListeners);
        CmmnExecution currentExecution = sourceExecution;
        while (currentExecution != null) {
            if (currentExecution.getActivityId() != null) {
                List<VariableListener<?>> listeners = listenersByActivity.get(currentExecution.getActivityId());
                if (listeners != null) {
                    delegateVariable.setScopeExecution(currentExecution);
                    for (VariableListener<?> listener : listeners) {
                        try {
                            CaseVariableListener caseVariableListener = (CaseVariableListener) listener;
                            CaseVariableListenerInvocation invocation = new CaseVariableListenerInvocation(caseVariableListener, delegateVariable, currentExecution);
                            Context.getProcessEngineConfiguration().getDelegateInterceptor().handleInvocation(invocation);
                        } catch (Exception e) {
                            throw LOG.invokeVariableListenerException(e);
                        }
                    }
                }
            }
            currentExecution = currentExecution.getParent();
        }
        // finally remove the event from the queue
        variableEventsQueue.remove();
    }
}