IceServer: Provides storage and management of page operations and configurations.
IceCore: Pulls & updates configuration information from the server, caches it in the business memory, and provides an execution interface.
Node class diagram
BaseNode: The base class of all ice nodes, providing common node operations, such as node valid time, etc.
BaseRelation: The base class of all relation nodes, used for business flow control.
BaseLeaf: The base class of all leaf nodes, the leaf nodes are the nodes that actually execute the business.