fun customAnnotation()

in graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/kotlin/KotlinPoetUtils.kt [312:354]
43 lines of code
10 McCabe index (conditional complexity)

fun customAnnotation(
    annotationArgumentMap: MutableMap<String, Value<Value<*>>>,
    config: CodeGenConfig,
): AnnotationSpec {
    if (annotationArgumentMap.isEmpty() ||
        !annotationArgumentMap.containsKey(ParserConstants.NAME) ||
        annotationArgumentMap[ParserConstants.NAME] is NullValue ||
        (annotationArgumentMap[ParserConstants.NAME] as StringValue).value.isEmpty()
    ) {
        throw IllegalArgumentException("Invalid annotate directive")
    }
    val (packageName, simpleName) =
        PackageParserUtil.getAnnotationPackage(
            config,
            (annotationArgumentMap[ParserConstants.NAME] as StringValue).value,
            if (annotationArgumentMap.containsKey(ParserConstants.TYPE) &&
                annotationArgumentMap[ParserConstants.TYPE] !is NullValue
            ) {
                (annotationArgumentMap[ParserConstants.TYPE] as StringValue).value
            } else {
                null
            },
        )
    val className = ClassName(packageName = packageName, simpleNames = listOf(simpleName))
    val annotation: AnnotationSpec.Builder = AnnotationSpec.builder(className)
    if (annotationArgumentMap.containsKey(ParserConstants.SITE_TARGET)) {
        annotation.useSiteTarget(
            AnnotationSpec.UseSiteTarget.valueOf((annotationArgumentMap[ParserConstants.SITE_TARGET] as StringValue).value.uppercase()),
        )
    }
    if (annotationArgumentMap.containsKey(ParserConstants.INPUTS)) {
        val codeBlocks: List<CodeBlock> =
            parseInputs(
                config,
                annotationArgumentMap[ParserConstants.INPUTS] as ObjectValue,
                (annotationArgumentMap[ParserConstants.NAME] as StringValue).value,
            )
        codeBlocks.forEach { codeBlock ->
            annotation.addMember(codeBlock)
        }
    }
    return annotation.build()
}