SMPP Session and Connection Handling

This section includes the classes responsible for managing the lifecycle, state, and behavior of SMPP sessions and underlying network connections. These components abstract the complexities of session control, binding, message routing, and channel-level operations between ESMEs and the SMSC.

Interfaces like SmppSession, SmppServerSession, and their implementation SmppSessionImpl manage bind/unbind operations, session state transitions, and protocol negotiation (e.g., version, capabilities).

Classes such as SmppSessionListener, SmppSessionHandler, and SmppSessionChannelListener define callbacks and hooks for reacting to session events, including incoming PDUs, connection loss, or unexpected behavior.

Wrappers and handlers like SmppSessionWrapper, SmppClientConnector, and SmppServerConnector extend Netty's channel infrastructure to integrate with SMPP session control. We can be sure that communication channels are properly initialized, monitored, and closed when necessary.

Configuration classes such as SmppSessionConfiguration, SmppServerConfiguration, and SmppConnectionConfiguration define the session parameters, connection limits, SSL/TLS options, and timeouts. These objects provide flexibility and control over how sessions behave under different environments or roles (client/server).