revet-core

Original：🇺🇸 English
Translated

Shared domain models for Revet libraries - Metadata, Identifier, SchemaValidation

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Sourcerevethq/skills
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NPX Install

npx skill4agent add revethq/skills revet-core

Tags

Translated version includes tags in frontmatter
revet-coredomain-modelskotlin-libraryschema-validationmetadata-management

SKILL.md Content

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Revet Core Library

Lightweight shared domain models used across Revet libraries. Zero external dependencies beyond Kotlin stdlib and Java 8+ APIs.

Dependency Coordinates

Group ID: 
com.revethq
Artifact ID: 
revet-core
Version: 
0.1.0

Gradle

kotlin
implementation("com.revethq:revet-core:0.1.0")

Maven

xml
<dependency>
    <groupId>com.revethq</groupId>
    <artifactId>revet-core</artifactId>
    <version>0.1.0</version>
</dependency>

Domain Models

Identifier

kotlin
package com.revethq.core

data class Identifier(
    val system: String? = null,
    val value: String? = null
)
Represents an external identifier with a system namespace and value.
Usage:
kotlin
val identifier = Identifier(
    system = "urn:oid:2.16.840.1.113883.4.1",
    value = "123-45-6789"
)

SchemaValidation

kotlin
package com.revethq.core

import java.time.OffsetDateTime
import java.util.UUID

data class SchemaValidation(
    val schemaId: UUID? = null,
    val isValid: Boolean = false,
    val validatedOn: OffsetDateTime? = null
)
Records schema validation state for a resource.
Usage:
kotlin
val validation = SchemaValidation(
    schemaId = UUID.fromString("..."),
    isValid = true,
    validatedOn = OffsetDateTime.now()
)

Metadata

kotlin
package com.revethq.core

data class Metadata(
    val identifiers: List<Identifier> = emptyList(),
    val schemaValidations: List<SchemaValidation> = emptyList(),
    val properties: Map<String, Any> = emptyMap()
)
Aggregate metadata container combining:
  • Multiple external identifiers
  • Schema validation history
  • Extensible key-value properties
Usage:
kotlin
val metadata = Metadata(
    identifiers = listOf(
        Identifier(system = "saml", value = "user@idp.com"),
        Identifier(system = "scim", value = "external-id-123")
    ),
    schemaValidations = listOf(validation),
    properties = mapOf(
        "customField" to "value",
        "tier" to "premium"
    )
)

Extension Points

Properties Map

The 
properties: Map<String, Any>
field in 
Metadata
is the primary extension point:
  • Add custom attributes without modifying core classes
  • Store domain-specific metadata
  • Maintain forward compatibility

Multiple Identifier Systems

Support multiple external identifiers per resource:
  • SAML NameID
  • SCIM externalId
  • OIDC subject
  • Custom enterprise identifiers

Multi-Schema Validation

Track validation against multiple schemas:
  • Validate same resource against different schema versions
  • Record validation history with timestamps

Characteristics

  • Zero Dependencies: Pure Kotlin + Java stdlib
  • Immutable by Default: Data classes encourage immutable patterns
  • Type-Safe: Full Kotlin null safety
  • Composition: Metadata aggregates, doesn't extend

Used By

  • revet-iam
    - User, Group, Policy, and other entities include 
    metadata: Metadata
  • revet-auth
    - Application, Client, Scope entities use Metadata