Hi all mates, while working on an idea of a JSON streaming parser for the Feature model, I noticed that the parser has the delegation of validating the input, other than transforming the json structure the the Feature model.
Given my experience of (many, sigh) years ago I when contributed to the Plexus Modello the JSON schema generator, I wrote an initial prototype of the Apache Sling Feature JSON schema[2] compliant with the latest #7 draft, and playing around with tests model with an online schema validator[2]. The proposed schema supports extensions handling, validating the object value type (JSON/TEXT/ARTIFACTS). I see the advantages below of adopting such schema: * to have a formal and standard way to describe the Feature data structure in JSON model; * provide an easy way to assist users on editing Feature json files in the right way inside IDEs, as shown in Eclipse[3] and IntelliJ[4]; * separate the input validation - it can be delegated by the Feature Analyzer - and the parser phases (which should just take care of transforming the JSON data to the Feature model): unfortunately there are no up-to-date Java implementations, the most well-known [5] works on org.json implementation and the other one [6] is "still" at the draft #4 (aside that relies on too many dependencies). An alternative could be writing a simple validator for our use case, based on the proposed schema. WDYT? I would like to contribute the schema [1] to one of the feature modules, maybe the -io is the more appropriate. I hope that could be interesting, have a nice day and all the best! ~Simo [1] https://gist.github.com/simonetripodi/c69d2ffebdbd2c4b1355df60568f1ab5 [2] https://www.jsonschemavalidator.net/ [3] https://stackoverflow.com/questions/50011837/how-to-do-json-schema-validation-in-eclipse [4] https://www.jetbrains.com/help/idea/settings-languages-json-schema.html [5] https://github.com/everit-org/json-schema [6] https://github.com/java-json-tools/json-schema-validator http://people.apache.org/~simonetripodi/ http://twitter.com/simonetripodi
