public List<RoutingInfo> findRoute(MyRoleMessageExchangeImpl mex) {
List<RoutingInfo> routingInfos = new ArrayList<RoutingInfo>();
if (__log.isTraceEnabled()) {
__log.trace(
ObjectPrinter.stringifyMethodEnter(
this + ":inputMsgRcvd", new Object[] {"messageExchange", mex}));
}
Operation operation = getMyRoleOperation(mex.getOperationName());
if (operation == null) {
__log.error(
__msgs.msgUnknownOperation(mex.getOperationName(), _plinkDef.myRolePortType.getQName()));
mex.setFailure(MessageExchange.FailureType.UNKNOWN_OPERATION, mex.getOperationName(), null);
return null;
}
setMexRole(mex);
// now, the tricks begin: when a message arrives we have to see if there
// is anyone waiting for it. Get the correlator, a persisted communication-reduction
// data structure supporting correlation correlationKey matching!
String correlatorId = BpelProcess.genCorrelatorId(_plinkDef, operation.getName());
CorrelatorDAO correlator = _process.getProcessDAO().getCorrelator(correlatorId);
CorrelationKeySet keySet;
// We need to compute the correlation keys (based on the operation
// we can infer which correlation keys to compute - this is merely a set
// consisting of each correlationKey used in each correlation sets
// that is ever referenced in an <receive>/<onMessage> on this
// partnerlink/operation.
try {
keySet = computeCorrelationKeys(mex);
} catch (InvalidMessageException ime) {
// We'd like to do a graceful exit here, no sense in rolling back due to a
// a message format problem.
__log.debug("Unable to evaluate correlation keys, invalid message format. ", ime);
mex.setFailure(MessageExchange.FailureType.FORMAT_ERROR, ime.getMessage(), null);
return null;
}
String mySessionId = mex.getProperty(MessageExchange.PROPERTY_SEP_MYROLE_SESSIONID);
String partnerSessionId = mex.getProperty(MessageExchange.PROPERTY_SEP_PARTNERROLE_SESSIONID);
if (__log.isDebugEnabled()) {
__log.debug(
"INPUTMSG: "
+ correlatorId
+ ": MSG RCVD keys="
+ keySet
+ " mySessionId="
+ mySessionId
+ " partnerSessionId="
+ partnerSessionId);
}
// Try to find a route for one of our keys.
List<MessageRouteDAO> messageRoutes = correlator.findRoute(keySet);
if (messageRoutes != null && messageRoutes.size() > 0) {
for (MessageRouteDAO messageRoute : messageRoutes) {
if (__log.isDebugEnabled()) {
__log.debug(
"INPUTMSG: "
+ correlatorId
+ ": ckeySet "
+ messageRoute.getCorrelationKeySet()
+ " route is to "
+ messageRoute);
}
routingInfos.add(
new RoutingInfo(messageRoute, messageRoute.getCorrelationKeySet(), correlator, keySet));
}
}
if (routingInfos.size() == 0) {
routingInfos.add(new RoutingInfo(null, null, correlator, keySet));
}
return routingInfos;
}
