[keycloak-dev] Documenting SPIs, providers and keycloak-server.json

To make it easier for users to configure Keycloak I propose we add a self-documenting feature to SPIs and Providers. This would also allow us to do some sanity check on keycloak-server.json. To achieve this we would do the following: 1. Add Spi#getDescription and update all implementations to have a short description about the Spi 2. Add ProviderDescription[1] interface, ProviderFactory implementations can optionally implement this interface. All our built-in providers should implement ProviderDescription 3. Add some sanity check of keycloak-server.json 4. Fix config in keycloak-server.json that doesn't follow the spi/provider format (applies to scheduled and theme) Using the above details we can generate a reference guide to include in the documentation. In the future we could also make it possible to configure through the admin console. It's only a couple hours work and I'd like to include it in 1.1.0.Beta1. More details below. -------------- #2 Add ProviderDescription ProviderDescription: * String getDescription * ConfigOption[] getConfigOptions() ConfigOption: * String getName * String getDescription * boolean isRequired * Type getType Type (enum) * STRING * NUMBER * BOOLEAN * OPTIONS(String.. options) -------------- #4 Fix config in keycloak-server.json Change: "scheduled": { "interval": 900 } To: "timer": { "basic": "defaultInterval: 900 } } Change: "theme": { "default": "keycloak", "staticMaxAge": 2592000, "cacheTemplates": "${keycloak.theme.cacheTemplates:true}", "cacheThemes": "${keycloak.theme.cacheThemes:true}", "folder": { "dir": "${keycloak.theme.dir}" } } To: "theme": { "provider": "default", "default": { "defaultTheme": "keycloak", "staticMaxAge": 2592000, "cacheTemplates": "${keycloak.theme.cacheTemplates:true}", "cacheThemes": "${keycloak.theme.cacheThemes:true}", "themeDir": "${keycloak.theme.dir}" } }