@Override
public void run() {
ClassLoader originalLoader = Classes.setTCCL(_loader);
try {
_session.getStateful().fireUntilHalt();
} finally {
try {
_handler.disposeStatefulSession();
} finally {
Classes.setTCCL(originalLoader);
}
}
}
/** {@inheritDoc} */
@Override
public void handleAction(Exchange exchange, KnowledgeAction action) throws HandlerException {
RulesActionType actionType = (RulesActionType) action.getType();
switch (actionType) {
case EXECUTE:
{
KnowledgeSession session = newStatelessSession();
setGlobals(exchange, action, session, true);
List<Object> input = getInputList(exchange, action);
session.getStateless().execute(input);
break;
}
case INSERT:
case FIRE_ALL_RULES:
{
/*
if (!isContinue(exchange)) {
disposeStatefulSession();
}
*/
KnowledgeSession session = getStatefulSession();
setGlobals(exchange, action, session, true);
List<Object> input = getInputList(exchange, action);
for (Object fact : input) {
session.getStateful().insert(fact);
}
if (RulesActionType.FIRE_ALL_RULES.equals(actionType)) {
session.getStateful().fireAllRules();
}
if (isDispose(exchange)) {
disposeStatefulSession();
}
break;
}
case FIRE_UNTIL_HALT:
{
/*
if (!isContinue(exchange)) {
disposeStatefulSession();
}
*/
KnowledgeSession session = getStatefulSession();
setGlobals(exchange, action, session, false);
if (_fireUntilHaltThread == null) {
FireUntilHalt fireUntilHalt = new FireUntilHalt(this, session, getLoader());
session.addDisposals(fireUntilHalt);
_fireUntilHaltThread = fireUntilHalt.startThread();
}
final String undefinedVariable = toVariable(exchange);
Map<String, List<Object>> listMap =
getListMap(exchange, action.getInputExpressionMappings(), true, undefinedVariable);
if (listMap.size() > 0) {
for (Entry<String, List<Object>> entry : listMap.entrySet()) {
String key = entry.getKey();
if (undefinedVariable.equals(key)) {
String id = Strings.trimToNull(action.getId());
if (id != null) {
key = id;
}
}
List<Object> input = entry.getValue();
if (undefinedVariable.equals(key)) {
for (Object fact : input) {
session.getStateful().insert(fact);
}
} else {
SessionEntryPoint sep = session.getStateful().getEntryPoint(key);
if (sep != null) {
for (Object fact : input) {
sep.insert(fact);
}
} else {
throw new HandlerException(
"Unknown entry point: " + sep + "; please check your rules source.");
}
}
}
} else {
Object content = exchange.getMessage().getContent();
if (content != null) {
session.getStateful().insert(content);
}
}
if (isDispose(exchange)) {
disposeStatefulSession();
}
break;
}
default:
{
throw new HandlerException("Unsupported action type: " + actionType);
}
}
Object output = getOutput(exchange, action);
if (ExchangePattern.IN_OUT.equals(
exchange.getContract().getProviderOperation().getExchangePattern())) {
Message message = exchange.createMessage().setContent(output);
exchange.send(message);
}
}