Control Flow

The Flex adapter loads its configuration from a file (for example, adapter-pubsub.xml), and validates it against the adapter schema (flexadapter.xsd), which includes the API-wide controller schema (controller.xsd).

The Adapter Controller creates an instance of the adapter, and receives and executes start, stop, and status commands.

• Start Command
  The start command configures and starts the control interface, gets the server handler to start listening for client connections, creates a separate client handler to serve each client connection, and connects the SpSubscriber component to Event Stream Processor via the SDK interface.
• Stop Command
  The stop command disconnects the SpSubscriber from Event Stream Processor, stops the Server Handler from accepting new client connections, causes the Client Handlers to finalize the responses to existing clients and disconnects them, and terminates the adapter process.
• Status Command
  The status command reports the adapter status, and the Adapter Controller prints its status: running or stopped.