/**
* Only call this if you plan on managing the whole EntityManagerFactory lifecycle yourself.
* Regular thundr apps should have no need to create these themselves and should simply declare an
* injection dependency on EntityManagerHelper. If you do choose to manage this yourself be sure
* to call <code>#destroy()</code> to ensure all resources are properly cleaned up.
*
* @param persistenceUnit the name of a persistence unit to initialize the EntityManagerFactory
* with
*/
public PersistenceManagerImpl(String persistenceUnit) {
String className = PersistenceManagerImpl.class.getName();
try {
entityManagerFactory = Persistence.createEntityManagerFactory(persistenceUnit);
threadLocal = new ThreadLocal<EntityManager>();
Logger.debug("%s initialized.", className);
} catch (Exception e) {
Logger.error("Initialization of %s failed: %s", className, e.getMessage());
throw new JpaException(e, "Initialization of %s failed.", className);
}
}
@Override
public Object resolve(
MethodAction action,
RouteType routeType,
HttpServletRequest req,
HttpServletResponse resp,
Map<String, String> pathVars)
throws ActionException {
Object controller = getOrCreateController(action);
Map<Annotation, ActionInterceptor<Annotation>> interceptors = action.interceptors();
Object result = null;
Exception exception = null;
try {
result = beforeInterceptors(interceptors, req, resp);
List<?> arguments = bindArguments(action, req, resp, pathVars);
result = result != null ? result : action.invoke(controller, arguments);
result = afterInterceptors(result, interceptors, req, resp);
} catch (InvocationTargetException e) {
// we need to unwrap InvocationTargetExceptions to get at the real exception
exception = Cast.as(e.getTargetException(), Exception.class);
if (exception == null) {
throw new BaseException(e);
}
} catch (Exception e) {
exception = e;
}
if (exception != null) {
result = exceptionInterceptors(interceptors, req, resp, exception);
if (result == null) {
throw new ActionException(exception, "Failed in %s: %s", action, exception.getMessage());
}
}
Logger.debug("%s -> %s resolved", req.getRequestURI(), action);
return result;
}
@Override
public <A extends Annotation> void registerInterceptor(
Class<A> annotation, ActionInterceptor<A> interceptor) {
actionInterceptors.put(annotation, interceptor);
Logger.info(
"Added ActionInterceptor %s for methods annotated with %s", interceptor, annotation);
}
@Override
public void destroy() {
entityManagerFactory.close();
entityManagerFactory = null;
threadLocal = null;
Logger.debug("%s destroyed.", PersistenceManagerImpl.class.getName());
}
@Override
public Result<T, K> createSearchResult(SearchImpl<T, K> searchRequest) {
String queryString = buildQueryString(searchRequest.query());
SortOptions.Builder sortOptions = buildSortOptions(searchRequest.order());
QueryOptions.Builder queryOptions = QueryOptions.newBuilder();
Integer limit = searchRequest.limit();
int offset = 0;
if (limit != null) {
offset = searchRequest.offset() == null ? 0 : searchRequest.offset();
int effectiveLimit = limit + offset;
if (effectiveLimit > 1000) {
Logger.warn(
"Currently the Google Search API does not support queries with a limit over 1000. With an offset of %d and a limit of %d, you have an effective limit of %d",
offset, limit, effectiveLimit);
}
limit = effectiveLimit;
/* Note, this can't be more than 1000 (Crashes) */
queryOptions = queryOptions.setLimit(limit);
}
if (searchRequest.accuracy() != null) {
queryOptions.setNumberFoundAccuracy(searchRequest.accuracy());
}
queryOptions.setSortOptions(sortOptions);
Query query = Query.newBuilder().setOptions(queryOptions).build(queryString);
Future<Results<ScoredDocument>> searchAsync = getIndex().searchAsync(query);
return new ResultImpl<T, K>(this, searchAsync, searchRequest.offset());
}
@Override
public EntityManager getEntityManager() throws IllegalStateException {
if (entityManagerFactory == null || !entityManagerFactory.isOpen()) {
throw new IllegalStateException(
"EntityManagerFactory is closed. You must now dispose of this instance.");
}
try {
EntityManager em = threadLocal.get();
if (em == null) {
em = entityManagerFactory.createEntityManager();
threadLocal.set(em);
}
return em;
} catch (Exception e) {
Logger.error("Error creating entity manager: %s", e.getMessage());
throw new JpaException(e, "Error creating entity manager: %s", e.getMessage());
}
}
