Method and system for distributed publisher-subscriber event communication

A distributed publisher-subscriber system, comprising:

• a first device configured for:
• determining a first event published with a first service operating thereon;
• determining a second device subscribing to the first event with a first subscription manager operating on the first device;
• and
• unicasting the first event to the second device;
• and
• a second device configured for:
• determining a plurality of second applications operating thereon with a second subscription manager operating on the second device, the plurality of second applications subscribing to the first event;
• and
• multicasting the first event received thereat from the second device to each of the plurality of second applications.

A system for distributed publisher-subscriber communications, comprising:

• a first device onboard a vehicle, the first device including:
• a plurality of first applications configured to consume a plurality of second events;
• a plurality of first services configured to produce produced a plurality of first events;
• a first subscription manager configured to manage subscriptions for the first device, and determine a second device subscribing to the plurality of first events;
• a first streamer configured to communicate with a gateway offboard the vehicle;
• a first dispatcher configured to manage communications between the first application, service, the first subscription manager, and the first streamer;
• and
• the second device offboard of the vehicle, the second device including:
• a plurality of second applications configured to consume the plurality of first events;
• a plurality of second services configured to produce the plurality of second events;
• a second subscription manager configured to manage subscriptions for the second device, and determine the plurality of second applications operating on the second device;
• a second streamer configured to communicate with the gateway;
• and
• a second dispatcher configured to manage communications between the second application service, the second subscription manager, and the second streamer.