use of won.bot.framework.bot.context.ParticipantCoordinatorBotContextWrapper in project webofneeds by researchstudio-sat.
the class StandardTwoPhaseCommitBot method initializeEventListeners.
@Override
protected void initializeEventListeners() {
EventListenerContext ctx = getEventListenerContext();
EventBus bus = getEventBus();
ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getBotContextWrapper();
// create needs every trigger execution until noOfNeeds are created
this.participantNeedCreator = new ActionOnEventListener(ctx, "participantCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getParticipantListName(), FacetType.ParticipantFacet.getURI()), noOfNeeds - 1);
bus.subscribe(ActEvent.class, this.participantNeedCreator);
// when done, create one coordinator need
this.coordinatorNeedCreator = new ActionOnEventListener(ctx, "coordinatorCreator", new FinishedEventFilter(participantNeedCreator), new CreateNeedWithFacetsAction(ctx, botContextWrapper.getCoordinatorListName(), FacetType.CoordinatorFacet.getURI()), 1);
bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
// wait for N NeedCreatedEvents
creationWaiter = new WaitForNEventsListener(ctx, noOfNeeds);
bus.subscribe(NeedCreatedEvent.class, creationWaiter);
// when done, connect the participants to the coordinator
this.needConnector = new ActionOnEventListener(ctx, "needConnector", new FinishedEventFilter(creationWaiter), new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), FacetType.CoordinatorFacet.getURI(), FacetType.ParticipantFacet.getURI(), MILLIS_BETWEEN_MESSAGES, "Hi!"), 1);
bus.subscribe(FinishedEvent.class, this.needConnector);
// add a listener that is informed of the connect/open events and that auto-opens
// subscribe it to:
// * connect events - so it responds with open
// * open events - so it responds with open (if the open received was the first open, and we still need to accept the connection)
this.autoOpener = new ActionOnEventListener(ctx, new NeedUriInNamedListFilter(ctx, botContextWrapper.getParticipantListName()), new OpenConnectionAction(ctx, "Hi!"));
bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoOpener);
// after the last connect event, all connections are closed!
this.participantDeactivator = new ActionOnEventListener(ctx, "participantDeactivator", new NeedUriInNamedListFilter(ctx, botContextWrapper.getParticipantListName()), new TwoPhaseCommitDeactivateOnCloseAction(ctx), noOfNeeds - 1);
bus.subscribe(CloseFromOtherNeedEvent.class, this.participantDeactivator);
coordinatorDeactivator = new ActionOnEventListener(ctx, "coordinatorDeactivator", new FinishedEventFilter(participantDeactivator), new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getCoordinatorListName()), 1);
bus.subscribe(FinishedEvent.class, coordinatorDeactivator);
// add a listener that counts two NeedDeactivatedEvents and then tells the
// framework that the bot's work is done
this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, noOfNeeds, new SignalWorkDoneAction(ctx));
bus.subscribe(NeedDeactivatedEvent.class, this.workDoneSignaller);
}
use of won.bot.framework.bot.context.ParticipantCoordinatorBotContextWrapper in project webofneeds by researchstudio-sat.
the class BAAtomicBaseBot method initializeEventListeners.
@Override
protected void initializeEventListeners() {
final EventListenerContext ctx = getEventListenerContext();
final EventBus bus = getEventBus();
ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getBotContextWrapper();
// create needs every trigger execution until noOfNeeds are created
this.participantNeedCreator = new ActionOnEventListener(ctx, "participantCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getParticipantListName(), getParticipantFacetType().getURI()), noOfNeeds - 1);
bus.subscribe(ActEvent.class, this.participantNeedCreator);
// when done, create one coordinator need
this.coordinatorNeedCreator = new ActionOnEventListener(ctx, "coordinatorCreator", new FinishedEventFilter(participantNeedCreator), new CreateNeedWithFacetsAction(ctx, botContextWrapper.getCoordinatorListName(), getCoordinatorFacetType().getURI()), 1);
bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
FinishedEventFilter coordinatorCreatorFilter = new FinishedEventFilter(coordinatorNeedCreator);
final Iterator<TwoPhaseScript> scriptIterator = scripts.iterator();
// make a composite filter, with one filter for each testScriptListener that wait
// for the FinishedEvents the they emit. That filter will be used to shut
// down all needs after all the scriptListeners have finished.
final OrFilter firstPhaseScriptListenerFilter = new OrFilter();
final OrFilter secondPhaseScriptListenerFilter = new OrFilter();
// create a callback that gets called immediately before the connection is established
ConnectFromListToListAction.ConnectHook scriptConnectHook = new ConnectFromListToListAction.ConnectHook() {
@Override
public void onConnect(final URI fromNeedURI, final URI toNeedURI) {
TwoPhaseScript script = scriptIterator.next();
// create the listener that will execute the script actions
BATestScriptListener testScriptListener = new BATestScriptListener(ctx, script.getFirstPhaseScript(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
// subscribe it to the relevant events.
bus.subscribe(ConnectFromOtherNeedEvent.class, testScriptListener);
bus.subscribe(OpenFromOtherNeedEvent.class, testScriptListener);
bus.subscribe(MessageFromOtherNeedEvent.class, testScriptListener);
// add a filter that will wait for the FinishedEvent emitted by that listener
// wrap it in an acceptance filter to make extra sure we count each listener only once.
firstPhaseScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(testScriptListener)));
// now we create the listener that is only active in the second phase
// remember it so we can check its state later
BATestScriptListener secondPhaseTestScriptListener = new BATestScriptListener(ctx, script.getSecondPhaseScript(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
// remember both listeners as a pair as we'll need them together later
TwoPhaseScriptListener twoPhaseScriptListener = new TwoPhaseScriptListener(testScriptListener, secondPhaseTestScriptListener);
scriptListeners.add(twoPhaseScriptListener);
secondPhaseScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(secondPhaseTestScriptListener)));
}
};
// when done, connect the participants to the coordinator
this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", noOfNeeds, new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), getCoordinatorFacetType().getURI(), getParticipantFacetType().getURI(), MILLIS_BETWEEN_MESSAGES, scriptConnectHook, "Hi!"));
bus.subscribe(NeedCreatedEvent.class, this.needConnector);
// for each group member, there are 2 listeners waiting for messages. when they are all finished, we're done.
this.firstPhaseDoneListener = new ActionOnceAfterNEventsListener(ctx, "firstPhaseDoneListener", firstPhaseScriptListenerFilter, noOfNeeds - 1, new BaseEventBotAction(ctx) {
@Override
protected void doRun(final Event event, EventListener executingListener) throws Exception {
logger.debug("starting second phase");
for (TwoPhaseScriptListener listener : scriptListeners) {
logger.debug("subscribing second phase listener {}", listener);
// subscribe it to the relevant events.
bus.subscribe(MessageFromOtherNeedEvent.class, listener.getSecondPhaseListener());
bus.subscribe(SecondPhaseStartedEvent.class, listener.getSecondPhaseListener());
listener.getSecondPhaseListener().setCoordinatorSideConnectionURI(listener.getFirstPhaseListener().getCoordinatorSideConnectionURI());
listener.getSecondPhaseListener().setParticipantSideConnectionURI(listener.getFirstPhaseListener().getParticipantSideConnectionURI());
listener.getSecondPhaseListener().updateFilterForBothConnectionURIs();
bus.publish(new SecondPhaseStartedEvent(listener.getFirstPhaseListener().getCoordinatorURI(), listener.getFirstPhaseListener().getCoordinatorSideConnectionURI(), listener.getFirstPhaseListener().getParticipantURI()));
}
}
});
bus.subscribe(FinishedEvent.class, this.firstPhaseDoneListener);
// for each group member, there are 2 listeners waiting for messages. when they are all finished, we're done.
this.scriptsDoneListener = new ActionOnceAfterNEventsListener(ctx, "scriptsDoneListener", secondPhaseScriptListenerFilter, noOfNeeds - 1, new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getParticipantListName()));
bus.subscribe(FinishedEvent.class, this.scriptsDoneListener);
// When the needs are deactivated, all connections are closed. wait for the close events and signal work done.
this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, "workDoneSignaller", noOfNeeds - 1, new SignalWorkDoneAction(ctx));
bus.subscribe(CloseFromOtherNeedEvent.class, this.workDoneSignaller);
}
use of won.bot.framework.bot.context.ParticipantCoordinatorBotContextWrapper in project webofneeds by researchstudio-sat.
the class StandardTwoPhaseCommitNoVoteBot method initializeEventListeners.
@Override
protected void initializeEventListeners() {
EventListenerContext ctx = getEventListenerContext();
EventBus bus = getEventBus();
ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getBotContextWrapper();
// create needs every trigger execution until noOfNeeds are created
this.participantNeedCreator = new ActionOnEventListener(ctx, "participantCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getParticipantListName(), FacetType.ParticipantFacet.getURI()), noOfNeeds - 1);
bus.subscribe(ActEvent.class, this.participantNeedCreator);
// when done, create one coordinator need
this.coordinatorNeedCreator = new ActionOnEventListener(ctx, "coordinatorCreator", new FinishedEventFilter(participantNeedCreator), new CreateNeedWithFacetsAction(ctx, botContextWrapper.getCoordinatorListName(), FacetType.CoordinatorFacet.getURI()), 1);
bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
// when done, connect the participants to the coordinator
this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", noOfNeeds, new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), FacetType.CoordinatorFacet.getURI(), FacetType.ParticipantFacet.getURI(), MILLIS_BETWEEN_MESSAGES, "Hi!"));
bus.subscribe(NeedCreatedEvent.class, this.needConnector);
// add a listener that is informed of the connect/open events and that auto-opens
// subscribe it to:
// * connect events - so it responds with open
// * open events - so it responds with open (if the open received was the first open, and we still need to accept the connection)
this.autoOpener = new ActionOnEventListener(ctx, "autoOpener", new OpenConnectionAction(ctx, "Hi!"));
bus.subscribe(OpenFromOtherNeedEvent.class, this.autoOpener);
bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoOpener);
this.autoCloser = new ActionOnceAfterNEventsListener(ctx, "autoCloser", noOfNeeds - 3, new CloseConnectionAction(ctx, "Bye!"));
bus.subscribe(ConnectFromOtherNeedEvent.class, this.autoCloser);
// after the last connect event, all connections are closed!
this.needDeactivator = new ActionOnEventListener(ctx, new TwoPhaseCommitNoVoteDeactivateAllNeedsAction(ctx), 1);
bus.subscribe(CloseFromOtherNeedEvent.class, this.needDeactivator);
// add a listener that counts two NeedDeactivatedEvents and then tells the
// framework that the bot's work is done
this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, noOfNeeds, new SignalWorkDoneAction(ctx));
bus.subscribe(NeedDeactivatedEvent.class, this.workDoneSignaller);
}
use of won.bot.framework.bot.context.ParticipantCoordinatorBotContextWrapper in project webofneeds by researchstudio-sat.
the class AutomaticBAMessageResponderListener method setupStateMachine.
private BATestBotScript setupStateMachine(OpenFromOtherNeedEvent openEvent, boolean weAreOnCoordinatorSide) {
// create a key for the state machine manager:
URI localNeedUri = openEvent.getCon().getNeedURI();
URI remoteNeedUri = openEvent.getCon().getRemoteNeedURI();
URI coordinatorUri = weAreOnCoordinatorSide ? localNeedUri : remoteNeedUri;
URI participantUri = weAreOnCoordinatorSide ? remoteNeedUri : localNeedUri;
// decide which state machine to use for this combination:
ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getEventListenerContext().getBotContextWrapper();
List<URI> participants = botContextWrapper.getParticipants();
logger.debug("participants:{}", participants);
logger.debug("participant URI to look for:{}", participantUri);
// let's hard-code this for now:
BATestBotScript stateMachine = null;
stateMachine = scripts.get(participants.indexOf(participantUri));
scriptManager.setStateForNeedUri(stateMachine, coordinatorUri, participantUri);
return stateMachine;
}
use of won.bot.framework.bot.context.ParticipantCoordinatorBotContextWrapper in project webofneeds by researchstudio-sat.
the class BABaseBot method initializeEventListeners.
@Override
protected void initializeEventListeners() {
final EventListenerContext ctx = getEventListenerContext();
final EventBus bus = getEventBus();
ParticipantCoordinatorBotContextWrapper botContextWrapper = (ParticipantCoordinatorBotContextWrapper) getBotContextWrapper();
// create needs every trigger execution until noOfNeeds are created
this.participantNeedCreator = new ActionOnEventListener(ctx, "participantCreator", new CreateNeedWithFacetsAction(ctx, botContextWrapper.getParticipantListName(), getParticipantFacetType().getURI()), noOfNeeds - 1);
bus.subscribe(ActEvent.class, this.participantNeedCreator);
// when done, create one coordinator need
this.coordinatorNeedCreator = new ActionOnEventListener(ctx, "coordinatorCreator", new FinishedEventFilter(participantNeedCreator), new CreateNeedWithFacetsAction(ctx, botContextWrapper.getCoordinatorListName(), getCoordinatorFacetType().getURI()), 1);
bus.subscribe(FinishedEvent.class, this.coordinatorNeedCreator);
final Iterator<BATestBotScript> scriptIterator = scripts.iterator();
// make a composite filter, with one filter for each testScriptListener that wait
// for the FinishedEvents the they emit. That filter will be used to shut
// down all needs after all the scriptListeners have finished.
final OrFilter mainScriptListenerFilter = new OrFilter();
// create a callback that gets called immediately before the connection is established
ConnectFromListToListAction.ConnectHook scriptConnectHook = new ConnectFromListToListAction.ConnectHook() {
@Override
public void onConnect(final URI fromNeedURI, final URI toNeedURI) {
// create the listener that will execute the script actions
BATestScriptListener testScriptListener = new BATestScriptListener(ctx, scriptIterator.next(), fromNeedURI, toNeedURI, MILLIS_BETWEEN_MESSAGES);
// remember it so we can check its state later
testScriptListeners.add(testScriptListener);
// subscribe it to the relevant events.
bus.subscribe(ConnectFromOtherNeedEvent.class, testScriptListener);
bus.subscribe(OpenFromOtherNeedEvent.class, testScriptListener);
bus.subscribe(MessageFromOtherNeedEvent.class, testScriptListener);
// add a filter that will wait for the FinishedEvent emitted by that listener
// wrap it in an acceptance filter to make extra sure we count each listener only once.
mainScriptListenerFilter.addFilter(new AcceptOnceFilter(new FinishedEventFilter(testScriptListener)));
}
};
// when done, connect the participants to the coordinator
this.needConnector = new ActionOnceAfterNEventsListener(ctx, "needConnector", noOfNeeds, new ConnectFromListToListAction(ctx, botContextWrapper.getCoordinatorListName(), botContextWrapper.getParticipantListName(), getCoordinatorFacetType().getURI(), getParticipantFacetType().getURI(), MILLIS_BETWEEN_MESSAGES, scriptConnectHook, "Hi!"));
bus.subscribe(NeedCreatedEvent.class, this.needConnector);
// for each group member, there are 2 listeners waiting for messages. when they are all finished, we're done.
this.scriptsDoneListener = new ActionOnceAfterNEventsListener(ctx, "scriptsDoneListener", mainScriptListenerFilter, noOfNeeds - 1, new DeactivateAllNeedsOfListAction(ctx, botContextWrapper.getParticipantListName()));
bus.subscribe(FinishedEvent.class, this.scriptsDoneListener);
// When the needs are deactivated, all connections are closed. wait for the close events and signal work done.
this.workDoneSignaller = new ActionOnceAfterNEventsListener(ctx, "workDoneSignaller", noOfNeeds - 1, new SignalWorkDoneAction(ctx));
bus.subscribe(CloseFromOtherNeedEvent.class, this.workDoneSignaller);
}
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