Examples with ResetRequest io.atomix.protocols.raft.protocol.ResetRequest used on opensource projects

Example 1 with ResetRequest

use of io.atomix.protocols.raft.protocol.ResetRequest in project atomix by atomix.

the class RaftSessionListener method handlePublish.

/**
 * Handles a publish request.
 *
 * @param request The publish request to handle.
 */
@SuppressWarnings("unchecked")
private void handlePublish(PublishRequest request) {
    log.trace("Received {}", request);
    // for this client.
    if (request.session() != state.getSessionId().id()) {
        log.trace("Inconsistent session ID: {}", request.session());
        return;
    }
    // Store eventIndex in a local variable to prevent multiple volatile reads.
    long eventIndex = state.getEventIndex();
    // If the request event index has already been processed, return.
    if (request.eventIndex() <= eventIndex) {
        log.trace("Duplicate event index {}", request.eventIndex());
        return;
    }
    // to resend events starting at eventIndex + 1.
    if (request.previousIndex() != eventIndex) {
        log.trace("Inconsistent event index: {}", request.previousIndex());
        ResetRequest resetRequest = ResetRequest.builder().withSession(state.getSessionId().id()).withIndex(eventIndex).build();
        log.trace("Sending {}", resetRequest);
        protocol.reset(memberSelector.members(), resetRequest);
        return;
    }
    // Store the event index. This will be used to verify that events are received in sequential order.
    state.setEventIndex(request.eventIndex());
    sequencer.sequenceEvent(request, () -> {
        for (PrimitiveEvent event : request.events()) {
            Set<Consumer<PrimitiveEvent>> listeners = eventListeners.get(event.type());
            if (listeners != null) {
                for (Consumer<PrimitiveEvent> listener : listeners) {
                    listener.accept(event);
                }
            }
        }
    });
}

Example 2 with ResetRequest

use of io.atomix.protocols.raft.protocol.ResetRequest in project atomix by atomix.

the class RaftProxyListener method handlePublish.

/**
 * Handles a publish request.
 *
 * @param request The publish request to handle.
 */
@SuppressWarnings("unchecked")
private void handlePublish(PublishRequest request) {
    log.trace("Received {}", request);
    // for this client.
    if (request.session() != state.getSessionId().id()) {
        log.trace("Inconsistent session ID: {}", request.session());
        return;
    }
    // Store eventIndex in a local variable to prevent multiple volatile reads.
    long eventIndex = state.getEventIndex();
    // If the request event index has already been processed, return.
    if (request.eventIndex() <= eventIndex) {
        log.trace("Duplicate event index {}", request.eventIndex());
        return;
    }
    // to resend events starting at eventIndex + 1.
    if (request.previousIndex() != eventIndex) {
        log.trace("Inconsistent event index: {}", request.previousIndex());
        ResetRequest resetRequest = ResetRequest.builder().withSession(state.getSessionId().id()).withIndex(eventIndex).build();
        log.trace("Sending {}", resetRequest);
        protocol.reset(memberSelector.members(), resetRequest);
        return;
    }
    // Store the event index. This will be used to verify that events are received in sequential order.
    state.setEventIndex(request.eventIndex());
    sequencer.sequenceEvent(request, () -> {
        for (PrimitiveEvent event : request.events()) {
            for (Consumer<PrimitiveEvent> listener : listeners) {
                listener.accept(event);
            }
        }
    });
}