/**
* *************************************************************************** Begin: Methods to
* handle children communication
* ***************************************************************************
*/
public static void askChildren(BasicActor gridActor) throws Exception {
// If there are children, then ...
if (gridActor.getContext().getChildren().iterator().hasNext()) {
BasicRequest request;
RequestContent requestContent = gridActor.returnRequestContentToSend();
// check if it is a MultiRequestContainer
if (requestContent instanceof MultiRequestContainer) {
MultiRequestContainer mrequest = (MultiRequestContainer) requestContent;
// send the current message to the children
if (mrequest.getCurrentRequestContent() instanceof SingleReceiverRequestContainer) {
executeAskSpecificChildrenLogic(
gridActor, (SingleReceiverRequestContainer) mrequest.getCurrentRequestContent());
} else {
request =
new BasicRequest(
gridActor.getCurrentTimeStep(),
gridActor.downStreamTrace,
mrequest.getCurrentRequestContent());
executeAskChildrenLogic(gridActor, request);
}
} else // normal execution without MultiRequestContainer
{
request =
new BasicRequest(
gridActor.getCurrentTimeStep(), gridActor.downStreamTrace, requestContent);
executeAskChildrenLogic(gridActor, request);
}
}
gridActor.upStreamTrace.add(gridActor.getSelf());
}
private static void executeAskLogic(BasicActor gridActor, RequestContent request) {
// FIXME the check if the request is a ping or not shall be part of the errorHandling mechanism,
// not the normal execution
if (request instanceof PingRequestContent) {
gridActor.makeDecision();
} else {
gridActor.askChildren();
gridActor.makeDecision();
}
}
private static void executeAskLogic(BasicActor gridActor, MultiRequestContainer mrequest) {
gridActor.prepareRequest();
if (debugging) {
System.out.println(
"---- Loop " + " Message type " + mrequest.getCurrentRequestContent() + " --------");
}
executeAskLogic(gridActor, mrequest.getCurrentRequestContent());
}
private static void executeAskChildrenLogic(BasicActor gridActor, BasicRequest request)
throws Exception {
// Patterns.ask() returns a Future<Object>
List<Future<Object>> childrenResponseList = new ArrayList<Future<Object>>();
Iterable<ActorRef> children = gridActor.getContext().getChildren();
for (ActorRef child : children) {
ConstantLogger.logMessageSendCounter(request);
// wait x ms for response
childrenResponseList.add(
Patterns.ask(
child,
request,
GridArchitectConfiguration.childrenResponseTime)); // childrenResponseListTimeOut
}
Future<Iterable<Object>> childrenFuturesIterable =
sequence(childrenResponseList, gridActor.getContext().system().dispatcher());
Iterable<Object> childrenResponsesIterable =
Await.result(
childrenFuturesIterable,
Duration.create(
(GridArchitectConfiguration.childrenResponseTime),
TimeUnit.MILLISECONDS)); // childrenResponsesIterableTimeOut
gridActor.answerListReceived = new ArrayList<BasicAnswer>();
for (Object iteratorResponses : childrenResponsesIterable) {
BasicAnswer receivedAnswer = (BasicAnswer) iteratorResponses;
gridActor.answerListReceived.add(receivedAnswer);
ConstantLogger.logMessageSendCounter(receivedAnswer);
if (receivedAnswer.overrideReportToParent) {
gridActor.reportToParentEnabled = true;
gridActor.overrideReportToParent = true;
}
// if multiple levels of hierarchie exist all actors will be included in the list
for (ActorRef actor : receivedAnswer.upstreamActorTrace) {
gridActor.upStreamTrace.add(actor);
}
}
}
public static void askSpecificActor(BasicActor gridActor) {
if (!gridActor.actorOptions.directConnectionsPathList.isEmpty() && !gridActor.detectCircle()) {
for (String actorPath : gridActor.actorOptions.directConnectionsPathList) {
gridActor
.getContext()
.actorSelection("/user/ActorSupervisor/" + actorPath)
.tell(
new DirectMessage(gridActor.getCurrentTimeStep(), gridActor.downStreamTrace),
gridActor.getSelf());
}
List<Future<Object>> actorResponseList = new ArrayList<Future<Object>>();
for (String actorPath : gridActor.actorOptions.directConnectionsPathList)
actorResponseList.add(
ask(
gridActor.getContext().actorSelection(actorPath),
new DirectMessage(gridActor.getCurrentTimeStep(), gridActor.downStreamTrace),
2000));
Future<Iterable<Object>> actorFuturesIterable =
sequence(actorResponseList, gridActor.getContext().system().dispatcher());
try {
Iterable<Object> actorResponsesIterable =
Await.result(
actorFuturesIterable,
Duration.create(
(GridArchitectConfiguration.childrenResponseTime),
TimeUnit.MILLISECONDS)); // childrenResponsesIterableTimeOut
for (Object response : actorResponsesIterable) {
for (ActorRef actor : ((DirectAnswerMessage) response).actorTrace)
gridActor.upStreamTrace.add(actor);
}
gridActor.upStreamTrace.add(gridActor.getSelf());
} catch (Exception e) {
System.out.println(e);
}
}
}
private static void executeAskSpecificChildrenLogic(
BasicActor gridActor, SingleReceiverRequestContainer messages) throws Exception {
// Patterns.ask() returns a Future<Object>
List<Future<Object>> childrenResponseList = new ArrayList<Future<Object>>();
for (SingleReceiverRequestContent secondMessage : messages.getRequests()) {
for (ActorRef child : gridActor.getContext().getChildren()) {
if (secondMessage.recieverPath.equals(child.path().toString())) {
BasicRequest request =
new BasicRequest(
gridActor.getCurrentTimeStep(), gridActor.downStreamTrace, secondMessage);
ConstantLogger.logMessageSendCounter(request);
// wait x ms for response
childrenResponseList.add(
Patterns.ask(child, request, GridArchitectConfiguration.childrenResponseTime));
}
}
}
Future<Iterable<Object>> childrenFuturesIterable =
sequence(childrenResponseList, gridActor.getContext().system().dispatcher());
Iterable<Object> childrenResponsesIterable =
Await.result(
childrenFuturesIterable,
Duration.create(
(GridArchitectConfiguration.childrenResponseTime),
TimeUnit.MILLISECONDS)); // childrenResponsesIterableTimeOut
gridActor.answerListReceived = new ArrayList<BasicAnswer>();
for (Object receivedAnswer : childrenResponsesIterable) {
gridActor.answerListReceived.add((BasicAnswer) receivedAnswer);
ConstantLogger.logMessageSendCounter((BasicAnswer) receivedAnswer);
if (((BasicAnswer) receivedAnswer).overrideReportToParent) {
gridActor.reportToParentEnabled = true;
gridActor.overrideReportToParent = true;
}
for (ActorRef actor : ((BasicAnswer) receivedAnswer).upstreamActorTrace) {
gridActor.upStreamTrace.add(actor);
}
}
}
/**
* *************************************************************************** BEGIN: Methods to
* handle specificActor communication
*
* <p>taken from original communication pattern from Alex
* ***************************************************************************
*/
public static void answerSpecificActor(BasicActor gridActor, ActorRef sender) {
if (!gridActor.detectCircle()) {
gridActor.reportToParentEnabled = false;
sender.tell(
new DirectAnswerMessage(gridActor.getCurrentTimeStep(), gridActor.upStreamTrace, 0.0),
gridActor.getSelf());
} else {
gridActor.reportToParentEnabled = true;
sender.tell(
new DirectAnswerMessage(gridActor.getCurrentTimeStep(), gridActor.upStreamTrace, 0.0),
gridActor.getSelf());
BasicAnswer basicAnswer =
new BasicAnswer(
gridActor.getCurrentTimeStep(),
gridActor.upStreamTrace,
true,
false,
gridActor.getSelf().path().toString(),
gridActor.answerContent);
gridActor.getContext().parent().tell(basicAnswer, gridActor.getSelf());
}
}
private static void executeAskLogic(BasicActor gridActor, BasicRequest request) {
gridActor.prepareRequest();
executeAskLogic(gridActor, request.requestContent);
}
/**
* Thats an important method
*
* @param gridActor
* @param message
*/
public static void doSomeWork(BasicActor gridActor, BasicRequest message) {
// check if Map needs some initialization
if (senderToMultipleRequestMapping == null) senderToMultipleRequestMapping = new HashMap<>();
// check first if the given Message is a MultiMessage
handleMultiRequest(message.requestContent);
// if the current gridActor has send a MultiMessage, all the messages inside the MultiMessage
// have to be processed
if (checkIfMultiMessage(gridActor)) {
MultiRequestContainer mrequest = ((MultiRequestContainer) getMultiMessage(gridActor));
if (debugging) {
System.out.println(
"---------" + gridActor.getBasicActor().behaviorModel.actorName + "------------");
System.out.println("-------------Loop-----------------");
}
// loop over all the messages inside the MultiMessage
for (int i = 0; i < mrequest.maxNbCommunicationSteps; i++) {
if (debugging) {
System.out.println(
" ---- Loop "
+ i
+ " "
+ gridActor.actorOptions.behaviorModel.actorName
+ "--------> Steps "
+ mrequest.maxNbCommunicationSteps);
}
executeAskLogic(gridActor, mrequest);
// if we reached the last step, we can remove it from the HashMap ( everything is processed)
if (mrequest.isLastStep()) {
removeMultiMessageValue(gridActor);
} else {
mrequest.nextStep();
}
if (debugging) {
// System.out.println(gridActor.actorOptions.behaviorModel.actorName+" --> What kind of
// message "+getMultiMessage(gridActor));
System.out.println(
" ---- Loop "
+ i
+ " "
+ gridActor.actorOptions.behaviorModel.actorName
+ " over--------");
}
}
if (debugging) {
System.out.println("-------------Loop over--------------");
System.out.println(
"---------" + gridActor.getBasicActor().behaviorModel.actorName + " end-------");
}
} else
// no MultiMessage found -> proceed to normal communication
{
executeAskLogic(gridActor, message);
}
// AB HIER wird die Antwort vorbereitet
// If the actor didn't replyed yet, then do reply
if (gridActor.reportToParentEnabled) {
BasicAnswer answer =
new BasicAnswer(
gridActor.getCurrentTimeStep(),
gridActor.upStreamTrace,
true,
false,
gridActor.getSelf().path().toString(),
gridActor.returnAnswerContentToSend());
gridActor.getSender().tell(answer, gridActor.getSelf());
// REMINDER warum wird ein upStreamTrace benötigt (evtl. gehts auch ohne?)
// System.out.println("ANSWER MESSAGE SENDED - " +gridActor.getSelf() +": " + answer);
gridActor.upStreamTrace = new ArrayList<ActorRef>();
} else {
gridActor.initializationMessageCache = message;
gridActor
.getSender()
.tell(
new BasicAnswer(
gridActor.getCurrentTimeStep(),
gridActor.upStreamTrace,
true,
false,
gridActor.getSelf().path().toString(),
gridActor.answerContent),
gridActor.getSelf());
}
}