PublicEnhencementService (PS) architecture design

PublicEnhancementService (PS): Public enhancement service, a module that provides functions such as unified configuration management, context service, physical library, data source management, microservice management, and historical task query for other microservice modules.

Introduction to the second-level module:

BML material library

It is the linkis material management system, which is mainly used to store various file data of users, including user scripts, resource files, third-party Jar packages, etc., and can also store class libraries that need to be used when the engine runs.

Core Class	Core Function
UploadService	Provide resource upload service
DownloadService	Provide resource download service
ResourceManager	Provides a unified management entry for uploading and downloading resources
VersionManager	Provides resource version marking and version management functions
ProjectManager	Provides project-level resource management and control capabilities

Unified configuration management

Configuration provides a “user-engine-application” three-level configuration management solution, which provides users with the function of configuring custom engine parameters under various access applications.

Core Class	Core Function
CategoryService	Provides management services for application and engine catalogs
ConfigurationService	Provides a unified management service for user configuration

ContextService context service

ContextService is used to solve the problem of data and information sharing across multiple systems in a data application development process.

Core Class	Core Function
ContextCacheService	Provides a cache service for context information
ContextClient	Provides the ability for other microservices to interact with the CSServer group
ContextHAManager	Provide high-availability capabilities for ContextService
ListenerManager	The ability to provide a message bus
ContextSearch	Provides query entry
ContextService	Implements the overall execution logic of the context service

Datasource data source management

Datasource provides the ability to connect to different data sources for other microservices.

Core Class	Core Function
datasource-server	Provide the ability to connect to different data sources

InstanceLabel microservice management

InstanceLabel provides registration and labeling functions for other microservices connected to linkis.

Core Class	Core Function
InsLabelService	Provides microservice registration and label management functions

Jobhistory historical task management

Jobhistory provides users with linkis historical task query, progress, log display related functions, and provides a unified historical task view for administrators.

Core Class	Core Function
JobHistoryQueryService	Provide historical task query service

Variable user-defined variable management

Variable provides users with functions related to the storage and use of custom variables.

Core Class	Core Function
VariableService	Provides functions related to the storage and use of custom variables

UDF user-defined function management

UDF provides users with the function of custom functions, which can be introduced by users when writing code.

Core Class	Core Function
UDFService	Provide user-defined function service

Overview