feat(device-plane): add universal adapter acceptance boundary
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@@ -0,0 +1,151 @@
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export const DEVICE_ADAPTER_CONTRACT_VERSION =
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"nodedc.device-adapter.v1";
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const ADAPTER_REF_RE = /^[a-z][a-z0-9-]{1,62}$/;
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const PROFILE_REF_RE = /^[a-z][a-z0-9._-]{2,127}$/;
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const RUNTIME_PACKAGE_REF_RE = /^@[a-z0-9-]+\/[a-z0-9-]+$/;
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export function defineDeviceAdapter(input) {
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assertPlainObject(input, "device_adapter");
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if (input.contractVersion !== DEVICE_ADAPTER_CONTRACT_VERSION) {
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throw new TypeError("device_adapter_contract_version_invalid");
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}
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const adapterRef = normalizeRef(
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input.adapterRef,
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ADAPTER_REF_RE,
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"device_adapter_ref_invalid",
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);
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const runtimePackageRef = normalizeRef(
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input.runtimePackageRef,
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RUNTIME_PACKAGE_REF_RE,
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"device_adapter_runtime_package_ref_invalid",
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);
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if (!Array.isArray(input.profiles) || input.profiles.length === 0) {
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throw new TypeError("device_adapter_profiles_required");
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}
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const profiles = input.profiles.map((profile) =>
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normalizeProfile(profile, adapterRef)
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);
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if (new Set(profiles.map((profile) => profile.profileRef)).size !== profiles.length) {
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throw new TypeError("device_adapter_profile_duplicate");
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}
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if (typeof input.createSession !== "function") {
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throw new TypeError("device_adapter_session_factory_required");
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}
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return deepFreeze({
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contractVersion: DEVICE_ADAPTER_CONTRACT_VERSION,
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adapterRef,
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runtimePackageRef,
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profiles,
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createSession: input.createSession,
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});
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}
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export function createDeviceAdapterRegistry({ adapters = [] } = {}) {
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if (!Array.isArray(adapters)) {
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throw new TypeError("device_adapter_registry_adapters_invalid");
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}
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const byAdapterRef = new Map();
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const byProfileRef = new Map();
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for (const adapter of adapters) {
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const normalized = defineDeviceAdapter(adapter);
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if (byAdapterRef.has(normalized.adapterRef)) {
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throw new TypeError("device_adapter_registry_adapter_duplicate");
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}
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byAdapterRef.set(normalized.adapterRef, normalized);
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for (const profile of normalized.profiles) {
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if (byProfileRef.has(profile.profileRef)) {
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throw new TypeError("device_adapter_registry_profile_duplicate");
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}
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byProfileRef.set(profile.profileRef, Object.freeze({
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adapter: normalized,
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profile,
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}));
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}
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}
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return Object.freeze({
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adapterRefs: Object.freeze([...byAdapterRef.keys()].sort()),
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profileRefs: Object.freeze([...byProfileRef.keys()].sort()),
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getAdapter(adapterRef) {
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const normalized = normalizeRef(
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adapterRef,
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ADAPTER_REF_RE,
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"device_adapter_ref_invalid",
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);
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const adapter = byAdapterRef.get(normalized);
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if (!adapter) throw new TypeError("device_adapter_not_allowlisted");
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return adapter;
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},
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resolveProfile(profileRef) {
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const normalized = normalizeRef(
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profileRef,
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PROFILE_REF_RE,
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"device_adapter_profile_ref_invalid",
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);
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const registration = byProfileRef.get(normalized);
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if (!registration) {
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throw new TypeError("device_adapter_profile_not_allowlisted");
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}
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return registration;
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},
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});
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}
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export function assertDeviceAdapterSession(session) {
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assertPlainObject(session, "device_adapter_session");
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for (const method of [
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"parseHeader",
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"buildHeaderAcknowledgement",
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"parseMessage",
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"buildMessageAcknowledgement",
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]) {
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if (typeof session[method] !== "function") {
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throw new TypeError(`device_adapter_session_method_missing:${method}`);
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}
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}
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return session;
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}
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function normalizeProfile(profile, adapterRef) {
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assertPlainObject(profile, "device_adapter_profile");
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const profileRef = normalizeRef(
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profile.profileRef,
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PROFILE_REF_RE,
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"device_adapter_profile_ref_invalid",
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);
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if (profile.adapterRef != null && profile.adapterRef !== adapterRef) {
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throw new TypeError("device_adapter_profile_adapter_mismatch");
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}
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const maxBufferedBytes = Number(profile?.framing?.maxBufferedBytes);
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if (
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!Number.isSafeInteger(maxBufferedBytes)
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|| maxBufferedBytes < 1024
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|| maxBufferedBytes > 256 * 1024
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) {
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throw new TypeError("device_adapter_profile_buffer_limit_invalid");
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}
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return deepFreeze({ ...profile, profileRef, adapterRef });
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}
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function normalizeRef(value, pattern, errorCode) {
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if (typeof value !== "string" || !pattern.test(value)) {
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throw new TypeError(errorCode);
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}
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return value;
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}
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function assertPlainObject(value, label) {
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if (!value || typeof value !== "object" || Array.isArray(value)) {
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throw new TypeError(`${label}_invalid`);
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}
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}
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function deepFreeze(value) {
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if (!value || typeof value !== "object" || Object.isFrozen(value)) {
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return value;
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}
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Object.values(value).forEach(deepFreeze);
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return Object.freeze(value);
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}
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