Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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Resource identifier, Its list of node key to drive path till the resource, where key is contains the local node name and the corresponding module namespace.
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The DataNode derived classes and any other generated code not depend (directly or otherwise) on the ONOS API or other third-party libraries other than the standard Java SDK.
There is Maven and Buck plugins plug-ins made available as minimalistic separate entities that will serve the purpose of shuttling information from the build frameworks to the YANG compiler.
These plugins plug-ins are useful for producing Java source code that can be used to compile applications against various YANG models.
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Links the various Intra File/Inter-File/ Inter-JAR YANG constructs dependencies. For ex: grouping and uses linking, typedef and type linking. Import, imclude depencency.
Translator
Generates java Java code corresponding to Data model.
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In a nutshell, the process takes a set of YANG files and compiles them into a set of Java classes along with the compiled schema metadata meta-data and packages them into a JAR, with manifest annotated as an OSGi bundle and a single-jar ONOS application.
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The process will be codified as a Maven pluginplug-in, Buck plugin plug-in and a run-time component providing on-the-fly compilation capabilities.
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Example: RESTCONF, NETCONF, Store
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Enhancement with YANG 2.0
| YANG Tools (1.11) + YMS | YANG Tools (2.0) + Dynamic Config |
Generated Classes | Tied to YMS; no common basis between models | Common ancestor for all models; model-agnostic and model-specific access; friendly API for apps |
Storage | Ad hoc; models serialized and stored at the discretion of application | Any and all models in a single store |
Protocols | RESTCONF and NETCONF are tightly coupled and integrated with YMS | RESTCONF and NETCONF can be maintained independently; new protocols (e.g. gNMI are easier to add) |
New Models | Applications must be made aware of all models at compilation time; cannot be stored by YMS | Applications can interact with new models or augmentations at runtime using the model-agnostic interface |
Live Compilation | Not available; introduction of new models requires recompilation | YANG models can be introduced and compiled at runtime (e.g. from a device) |
Modularity and Maintainability | YMS and onos-yang-tools are tightly coupled making maintenance difficult and usage is brittle | YANG tools, dynamic config manager and store are implemented in a modular fashion; they can be evolved and maintained independently from one another; generated classes are not tied to the dynamic config store |
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