use of org.activiti.cdi.impl.util.ActivitiServices in project Activiti by Activiti.
the class ActivitiExtension method lookupProcessEngine.
protected ProcessEngine lookupProcessEngine(BeanManager beanManager) {
ServiceLoader<ProcessEngineLookup> processEngineServiceLoader = ServiceLoader.load(ProcessEngineLookup.class);
Iterator<ProcessEngineLookup> serviceIterator = processEngineServiceLoader.iterator();
List<ProcessEngineLookup> discoveredLookups = new ArrayList<ProcessEngineLookup>();
while (serviceIterator.hasNext()) {
ProcessEngineLookup serviceInstance = (ProcessEngineLookup) serviceIterator.next();
discoveredLookups.add(serviceInstance);
}
Collections.sort(discoveredLookups, new Comparator<ProcessEngineLookup>() {
public int compare(ProcessEngineLookup o1, ProcessEngineLookup o2) {
return (-1) * ((Integer) o1.getPrecedence()).compareTo(o2.getPrecedence());
}
});
ProcessEngine processEngine = null;
for (ProcessEngineLookup processEngineLookup : discoveredLookups) {
processEngine = processEngineLookup.getProcessEngine();
if (processEngine != null) {
this.processEngineLookup = processEngineLookup;
logger.debug("ProcessEngineLookup service {} returned process engine.", processEngineLookup.getClass());
break;
} else {
logger.debug("ProcessEngineLookup service {} retuned 'null' value.", processEngineLookup.getClass());
}
}
if (processEngineLookup == null) {
throw new ActivitiException("Could not find an implementation of the org.activiti.cdi.spi.ProcessEngineLookup service " + "returning a non-null processEngine. Giving up.");
}
ActivitiServices activitiServices = ProgrammaticBeanLookup.lookup(ActivitiServices.class, beanManager);
activitiServices.setProcessEngine(processEngine);
return processEngine;
}
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