Network definition

All modules in the same application or different applications communicate in-memory through the framework:

• If two modules are in the same application, they are in the same JVM and share their datas
• If two modules are managed by the same framework instance but are on different applications, they can communicate directly though the framework or through the Network

It is possible to use TCP or UDP to communicate between two framework instances^[1]

See Modules in different framework instances

. In that case, services between the two instances will be shared through UDP or TCP sockets.

Communication with sockets through the Network

The network configuration has several channel children, one for each channel:

• An input Channel is an UDP or TCP communication from another framework instance. The stream will send content from services coming from the other frame instance to this framework instance
• An output Channel is an UDP or TCP communication to another framework instance. The stream will send content from services from this frame instance to the other framework instance

We will have the following architecture with our two framework instances:

Examples

For example, for a publish Service:

For a request-response Service:

Communication protocol

The sequence of communication for a Service invocation through TCP or UDP is as follows:

• The provider module calls the invoke() method for the Service
• The framework which controls the provider module defer the invocation to the implementation of the protocol protocol which is used for the subscriber module
• The framework which controls the subscriber module receives the TCP or UDP message
• The framework which controls the subscriber module notifies this module