1. Project Proposal Anton Tkacik, Lukas Sedlak
YANG Tools
Project Proposal
Anton Tkacik, Lukas Sedlak

2. Contents Project Overview Scope Current status Plans
Reusable parts & Examples

3. Overview
Project aims to develop reusable set of components processing YANG
Parsing and processing YANG schemas
support for code generation based on YANG
validation of XML based on YANG schema
prototyping of YANG extensions
REST APIs – YANG-API (draft-bierman-netconf-yang-api-01)

4. Scope YANG infrastructure parser, meta-model java binding
Maven plugin for processing YANG files
Infrastructure for code generators based on YANG
Validation of instance data (XML) based on YANG to RelaxNG mapping
PoC and support for new YANG extensions reusable by other projects.
IDE related tools for YANG models
REST APIs based on YANG schemas

5. Current Status Currently is part of controller project Functionality
Parsing and processing YANG files into meta-model for YANG
Maven integration, support for code generators
Code generator for Model-driven SAL
Functionality was presented several times - on technical calls, hack-fests as part of Model-driven SAL for Controller

6. Relationship to other projects
YANG is used as modeling language for Controller Model-driven SAL, YANG Tools provides necessary functionality and infrastructure for that
Northbound REST APIs with well-defined schema (YANG APIs) – reusable in controller and applications
Programmatic APIs to OFConfig (which is defined in YANG form)
Programmatic APIs to Netconf modules

7. Backup

8. Current Status - Processing
Processing of YANG
Discovery of available YANG files / models
Parsing files to AST
Conversion from AST to Semantic Model
Resolving references in Semantic Model
Generating output final Semantic Model