🎓 Guide expert
Architecture interne, optimisations avancées et contributions au protocole
🎯 Objectifs de ce guide
Ce guide s’adresse aux développeurs expérimentés qui souhaitent :
- 🔬 Comprendre l’architecture interne du protocole et ses implémentations
- ⚡ Optimiser les performances pour des cas d’usage haute charge
- 🛠️ Étendre le protocole avec de nouvelles fonctionnalités
- 🤝 Contribuer au développement de l’écosystème
- 🔍 Analyser les compromis techniques et les choix d’implémentation
🏗️ Architecture interne du protocole
Vue d’ensemble des composants
graph TB
subgraph "Protocol Core"
SPEC[InputFieldSpec<br/>📋 Spécification centralisée]
CONSTRAINT[ConstraintDescriptor<br/>🔒 Règles de validation]
ENDPOINT[ValuesEndpoint<br/>🌐 Configuration API]
MAPPING[ResponseMapping<br/>📊 Transformation données]
end
subgraph "Client Layer - TypeScript"
TS_VALID[FieldValidator<br/>✅ Moteur validation]
TS_RESOLVER[ValuesResolver<br/>🔄 Résolution valeurs]
TS_CACHE[CacheProvider<br/>💾 Abstraction cache]
TS_HTTP[HttpClient<br/>🌐 Abstraction HTTP]
end
subgraph "Client Layer - Java"
JAVA_VALID[FieldValidator<br/>✅ Moteur validation]
JAVA_CLIENT[ValuesResolver<br/>🔄 Résolution valeurs]
JAVA_CACHE[CacheProvider<br/>💾 Abstraction cache]
JAVA_HTTP[HttpClient<br/>🌐 Abstraction HTTP]
end
subgraph "Extension Points"
ADAPTERS[Framework Adapters<br/>🔌 React, Vue, Angular]
CUSTOM[Custom Validators<br/>🎯 Validations métier]
PLUGINS[Protocol Plugins<br/>🧩 Extensions tierces]
end
SPEC --> TS_VALID
SPEC --> JAVA_VALID
CONSTRAINT --> TS_VALID
CONSTRAINT --> JAVA_VALID
ENDPOINT --> TS_RESOLVER
ENDPOINT --> JAVA_CLIENT
TS_RESOLVER --> TS_HTTP
TS_RESOLVER --> TS_CACHE
JAVA_CLIENT --> JAVA_HTTP
JAVA_CLIENT --> JAVA_CACHE
TS_VALID --> ADAPTERS
CUSTOM --> TS_VALID
CUSTOM --> JAVA_VALID
classDef core fill:#e1f5fe
classDef typescript fill:#3178c6
classDef java fill:#ed8b00
classDef extension fill:#4caf50
class SPEC,CONSTRAINT,ENDPOINT,MAPPING core
class TS_VALID,TS_RESOLVER,TS_CACHE,TS_HTTP typescript
class JAVA_VALID,JAVA_CLIENT,JAVA_CACHE,JAVA_HTTP java
class ADAPTERS,CUSTOM,PLUGINS extension
Analyse des choix d’architecture
1. Séparation protocole/implémentation
✅ Forces :
- Interopérabilité maximale entre langages
- Évolution indépendante des implémentations
- Tests de conformité standardisés
⚠️ Compromis :
- Complexité accrue pour des fonctionnalités spécifiques au langage
- Délai de synchronisation entre spécification et implémentations
// Exemple : Extension spécifique TypeScript non portable
interface TypeScriptSpecificExtension {
// Cette extension ne peut pas être portée en Java facilement
dynamicValidation?: (value: any, context: Record<string, any>) => Promise<boolean>;
}
2. Architecture en couches
graph TB
subgraph "User Interface"
REACT[React Components]
VUE[Vue Components]
VANILLA[Vanilla JS]
end
subgraph "Framework Adapters"
REACT_ADAPTER[React Adapter]
VUE_ADAPTER[Vue Adapter]
FORM_LIB[Form Libraries]
end
subgraph "Protocol Implementation"
VALIDATOR[Field Validator]
RESOLVER[Values Resolver]
TYPES[Type System]
end
subgraph "Infrastructure"
HTTP[HTTP Client]
CACHE[Cache Provider]
STORAGE[Storage Provider]
end
REACT --> REACT_ADAPTER
VUE --> VUE_ADAPTER
VANILLA --> FORM_LIB
REACT_ADAPTER --> VALIDATOR
VUE_ADAPTER --> VALIDATOR
FORM_LIB --> RESOLVER
VALIDATOR --> HTTP
RESOLVER --> CACHE
TYPES --> STORAGE
classDef ui fill:#e8f5e8
classDef adapter fill:#fff3e0
classDef protocol fill:#e3f2fd
classDef infra fill:#fce4ec
class REACT,VUE,VANILLA ui
class REACT_ADAPTER,VUE_ADAPTER,FORM_LIB adapter
class VALIDATOR,RESOLVER,TYPES protocol
class HTTP,CACHE,STORAGE infra
Avantages de cette approche :
- Testabilité : Chaque couche peut être testée indépendamment
- Flexibilité : Possibilité de remplacer des couches spécifiques
- Réutilisabilité : Le cœur du protocole reste portable
🔬 Implémentation détaillée
1. Moteur de validation - Analyse approfondie
⚠️ Compatibilité rétro (v1) : Le moteur présenté ci‑dessous illustre encore certains points d’extension pour
enumValues
afin d’expliquer comment un adapter de migration peut fonctionner. En v2 canonique, les ensembles de valeurs doivent être fournis viafieldSpec.valuesEndpoint
(INLINE ou distant). Lorsque vous construisez un moteur strictement v2, vous pouvez supprimer toute la logique faisant référence àenumValues
.
// TypeScript - Architecture interne du FieldValidator
export class FieldValidator {
private static readonly DEFAULT_DATE_FORMAT = 'iso8601';
private readonly constraintProcessors: Map<string, ConstraintProcessor>;
constructor(
private options: ValidatorOptions = {},
private plugins: ValidatorPlugin[] = []
) {
this.constraintProcessors = this.initializeProcessors();
this.registerPlugins(plugins);
}
private initializeProcessors(): Map<string, ConstraintProcessor> {
const processors = new Map<string, ConstraintProcessor>();
// Processeurs de base du protocole (v2)
processors.set('pattern', new PatternConstraintProcessor());
processors.set('min', new MinConstraintProcessor());
processors.set('max', new MaxConstraintProcessor());
processors.set('format', new FormatConstraintProcessor());
// NOTE v2: enumValues est retiré du modèle protocolaire canonique. Un processeur
// peut subsister côté implémentation pour compatibilité rétro (adapter v1).
// processors.set('enumValues', new LegacyEnumConstraintProcessor()); // Optionnel
return processors;
}
// Méthode de validation avec stratégie de court-circuit optimisée
async validate(
fieldSpec: InputFieldSpec,
value: any,
constraintName?: string,
context?: ValidationContext
): Promise<ValidationResult> {
const validationContext = context || this.createDefaultContext();
const errors: ValidationError[] = [];
try {
// 1. Validation de type précoce (fail fast)
if (!this.isValidType(value, fieldSpec.dataType, fieldSpec.expectMultipleValues)) {
return this.createTypeError(fieldSpec, value);
}
// 2. Validation required (court-circuit si échec)
if (fieldSpec.required && this.isEmpty(value)) {
return this.createRequiredError(fieldSpec);
}
// 3. Court-circuit si valeur vide et non requise
if (this.isEmpty(value) && !fieldSpec.required) {
return new ValidationResult(true, []);
}
// 4. Traitement des contraintes avec optimisations
const constraints = constraintName
? [this.findConstraint(fieldSpec.constraints, constraintName)]
: fieldSpec.constraints;
for (const constraint of constraints) {
if (!constraint) continue;
const constraintErrors = await this.processConstraint(
constraint,
value,
fieldSpec,
validationContext
);
errors.push(...constraintErrors);
// Court-circuit optionnel sur première erreur (performance)
if (this.options.failFast && constraintErrors.length > 0) {
break;
}
}
} catch (error) {
// Gestion robuste des erreurs de validation
errors.push(new ValidationError(
'validation_error',
`Erreur interne de validation: ${error.message}`,
value
));
}
return new ValidationResult(errors.length === 0, errors);
}
private async processConstraint(
constraint: ConstraintDescriptor,
value: any,
fieldSpec: InputFieldSpec,
context: ValidationContext
): Promise<ValidationError[]> {
const errors: ValidationError[] = [];
// Traitement des contraintes par ordre de priorité (optimisation)
const processingOrder = this.getConstraintProcessingOrder(constraint);
for (const constraintType of processingOrder) {
const processor = this.constraintProcessors.get(constraintType);
if (processor && processor.canProcess(constraint)) {
try {
const result = await processor.process(
constraint,
value,
fieldSpec,
context
);
if (!result.isValid) {
errors.push(...result.errors);
}
} catch (error) {
errors.push(new ValidationError(
constraintType,
`Erreur de traitement ${constraintType}: ${error.message}`,
value
));
}
}
}
return errors;
}
// Optimisation : ordre de traitement basé sur la complexité/coût
private getConstraintProcessingOrder(constraint: ConstraintDescriptor): string[] {
const order = [];
// 1. Validations locales rapides d'abord
if (constraint.pattern) order.push('pattern');
if (constraint.min !== undefined) order.push('min');
if (constraint.max !== undefined) order.push('max');
if (constraint.format) order.push('format');
// 2. Validations nécessitant des données externes en dernier
// v2: les ensembles de valeurs sont définis via fieldSpec.valuesEndpoint (pas stocké dans la contrainte)
// Un adapter de compatibilité pourrait encore pousser 'enumValues' ici.
return order;
}
}
// Interface pour les processeurs de contraintes extensibles
interface ConstraintProcessor {
canProcess(constraint: ConstraintDescriptor): boolean;
process(
constraint: ConstraintDescriptor,
value: any,
fieldSpec: InputFieldSpec,
context: ValidationContext
): Promise<ProcessingResult>;
}
// Exemple de processeur personnalisé
class CustomBusinessLogicProcessor implements ConstraintProcessor {
canProcess(constraint: ConstraintDescriptor): boolean {
return constraint.name.startsWith('business_');
}
async process(
constraint: ConstraintDescriptor,
value: any,
fieldSpec: InputFieldSpec,
context: ValidationContext
): Promise<ProcessingResult> {
// Logique métier spécifique
switch (constraint.name) {
case 'business_unique_project_name':
return this.validateProjectNameUniqueness(value, context);
case 'business_user_permissions':
return this.validateUserPermissions(value, context);
default:
return { isValid: true, errors: [] };
}
}
private async validateProjectNameUniqueness(
projectName: string,
context: ValidationContext
): Promise<ProcessingResult> {
// Implémentation de la validation d'unicité
const exists = await context.businessLogic.checkProjectNameExists(projectName);
if (exists) {
return {
isValid: false,
errors: [new ValidationError(
'business_unique_project_name',
'Ce nom de projet existe déjà',
projectName
)]
};
}
return { isValid: true, errors: [] };
}
}
2. Système de cache haute performance
// Cache provider avec algorithmes avancés
export class HighPerformanceCacheProvider implements CacheProvider {
private readonly primaryCache = new Map<string, CacheEntry>();
private readonly indexCache = new Map<string, Set<string>>(); // Index pour invalidation en groupe
private readonly writeQueue: CacheWrite[] = [];
private readonly metrics: CacheMetrics;
private readonly config: CacheConfig = {
maxSize: 10000,
defaultTTL: 5 * 60 * 1000, // 5 minutes
maxMemoryUsage: 50 * 1024 * 1024, // 50MB
evictionPolicy: 'LRU',
writeStrategy: 'write-behind',
compressionThreshold: 1024 // Compresser les objets > 1KB
};
constructor(config?: Partial<CacheConfig>) {
this.config = { ...this.config, ...config };
this.metrics = new CacheMetrics();
this.setupWriteBehindProcessor();
this.setupMemoryMonitoring();
}
get<T>(key: string): T | null {
const start = performance.now();
try {
const entry = this.primaryCache.get(key);
if (!entry) {
this.metrics.recordMiss(key);
return null;
}
if (this.isExpired(entry)) {
this.primaryCache.delete(key);
this.removeFromIndexes(key, entry);
this.metrics.recordMiss(key);
return null;
}
// Mise à jour LRU
entry.lastAccessed = Date.now();
entry.accessCount++;
this.metrics.recordHit(key, performance.now() - start);
// Décompression si nécessaire
return this.deserializeValue<T>(entry.value);
} catch (error) {
this.metrics.recordError('get', error);
return null;
}
}
set<T>(key: string, value: T, ttlMs?: number): void {
const serializedValue = this.serializeValue(value);
const entry: CacheEntry = {
value: serializedValue,
createdAt: Date.now(),
lastAccessed: Date.now(),
accessCount: 1,
expiresAt: ttlMs ? Date.now() + ttlMs : Date.now() + this.config.defaultTTL,
size: this.calculateSize(serializedValue),
compressed: serializedValue.length > this.config.compressionThreshold
};
if (this.config.writeStrategy === 'write-behind') {
this.queueWrite(key, entry);
} else {
this.writeDirectly(key, entry);
}
}
// Invalidation par pattern pour les données liées
invalidatePattern(pattern: string): void {
const regex = new RegExp(pattern);
const keysToDelete: string[] = [];
for (const [key] of this.primaryCache) {
if (regex.test(key)) {
keysToDelete.push(key);
}
}
keysToDelete.forEach(key => this.delete(key));
this.metrics.recordBatchInvalidation(keysToDelete.length);
}
// Invalidation par tag pour les groupes logiques
invalidateByTag(tag: string): void {
const keys = this.indexCache.get(tag);
if (keys) {
keys.forEach(key => this.delete(key));
this.indexCache.delete(tag);
this.metrics.recordTagInvalidation(tag, keys.size);
}
}
private setupWriteBehindProcessor(): void {
if (this.config.writeStrategy === 'write-behind') {
setInterval(() => {
this.processWriteQueue();
}, 100); // Traiter la queue toutes les 100ms
}
}
private processWriteQueue(): void {
const batchSize = Math.min(this.writeQueue.length, 50);
const batch = this.writeQueue.splice(0, batchSize);
for (const write of batch) {
try {
this.writeDirectly(write.key, write.entry);
} catch (error) {
this.metrics.recordError('write_behind', error);
}
}
}
private writeDirectly(key: string, entry: CacheEntry): void {
// Éviction si nécessaire
if (this.shouldEvict()) {
this.evictEntries();
}
// Enregistrement avec indexation
this.primaryCache.set(key, entry);
this.updateIndexes(key, entry);
this.metrics.recordWrite(key, entry.size);
}
private shouldEvict(): boolean {
return this.primaryCache.size >= this.config.maxSize ||
this.getCurrentMemoryUsage() >= this.config.maxMemoryUsage;
}
private evictEntries(): void {
const entriesToEvict = Math.max(1, Math.floor(this.config.maxSize * 0.1)); // Éviction de 10%
switch (this.config.evictionPolicy) {
case 'LRU':
this.evictLRU(entriesToEvict);
break;
case 'LFU':
this.evictLFU(entriesToEvict);
break;
case 'TTL':
this.evictExpired();
break;
}
}
private evictLRU(count: number): void {
const entries = Array.from(this.primaryCache.entries())
.sort(([, a], [, b]) => a.lastAccessed - b.lastAccessed)
.slice(0, count);
entries.forEach(([key]) => {
this.primaryCache.delete(key);
this.removeFromIndexes(key, this.primaryCache.get(key)!);
});
this.metrics.recordEviction('LRU', count);
}
// Métriques détaillées pour le monitoring
getDetailedMetrics(): DetailedCacheMetrics {
return {
...this.metrics.getSummary(),
memoryUsage: this.getCurrentMemoryUsage(),
entryCount: this.primaryCache.size,
averageEntrySize: this.getAverageEntrySize(),
hotKeys: this.getHotKeys(10),
evictionRate: this.metrics.getEvictionRate(),
compressionRatio: this.getCompressionRatio()
};
}
private getHotKeys(limit: number): Array<{ key: string; accessCount: number }> {
return Array.from(this.primaryCache.entries())
.map(([key, entry]) => ({ key, accessCount: entry.accessCount }))
.sort((a, b) => b.accessCount - a.accessCount)
.slice(0, limit);
}
}
⚡ Optimisations avancées
1. Compilation et optimisation à l’exécution
// Compilation dynamique des validations pour des performances maximales
export class CompiledValidator {
private compiledValidators = new Map<string, CompiledValidationFunction>();
compile(fieldSpec: InputFieldSpec): CompiledValidationFunction {
const cacheKey = this.generateCacheKey(fieldSpec);
if (this.compiledValidators.has(cacheKey)) {
return this.compiledValidators.get(cacheKey)!;
}
const compiled = this.compileFieldSpec(fieldSpec);
this.compiledValidators.set(cacheKey, compiled);
return compiled;
}
private compileFieldSpec(fieldSpec: InputFieldSpec): CompiledValidationFunction {
const validationSteps: ValidationStep[] = [];
// Génération de code optimisé pour chaque contrainte
for (const constraint of fieldSpec.constraints) {
if (constraint.pattern) {
const regex = new RegExp(constraint.pattern);
validationSteps.push({
type: 'pattern',
validator: (value: string) => regex.test(value),
errorMessage: constraint.errorMessage || 'Format invalide'
});
}
if (constraint.min !== undefined || constraint.max !== undefined) {
validationSteps.push(this.compileMinMaxValidation(constraint, fieldSpec));
}
// Legacy (migration): prise en charge optionnelle de enumValues pour specs non migrées
if (constraint.enumValues) {
const validValues = new Set(constraint.enumValues.map(ev => ev.value));
validationSteps.push({
type: 'enum',
validator: (value: any) => validValues.has(value),
errorMessage: constraint.errorMessage || 'Valeur non autorisée'
});
}
}
// Retourner une fonction optimisée
return this.createOptimizedValidator(validationSteps, fieldSpec);
}
private createOptimizedValidator(
steps: ValidationStep[],
fieldSpec: InputFieldSpec
): CompiledValidationFunction {
return (value: any): ValidationResult => {
// Validation rapide du type
if (!this.fastTypeCheck(value, fieldSpec.dataType, fieldSpec.expectMultipleValues)) {
return {
isValid: false,
errors: [{
constraintName: 'type',
message: `Type ${fieldSpec.dataType} attendu`
}]
};
}
// Validation required
if (fieldSpec.required && (value === null || value === undefined || value === '')) {
return {
isValid: false,
errors: [{
constraintName: 'required',
message: 'Ce champ est obligatoire'
}]
};
}
// Exécution des étapes compilées
const errors: ValidationError[] = [];
if (fieldSpec.expectMultipleValues && Array.isArray(value)) {
// Validation optimisée pour les tableaux
for (let i = 0; i < value.length; i++) {
for (const step of steps) {
if (!step.validator(value[i])) {
errors.push({
constraintName: `${step.type}[${i}]`,
message: step.errorMessage
});
}
}
}
} else {
// Validation pour valeur unique
for (const step of steps) {
if (!step.validator(value)) {
errors.push({
constraintName: step.type,
message: step.errorMessage
});
}
}
}
return {
isValid: errors.length === 0,
errors
};
};
}
private fastTypeCheck(value: any, dataType: DataType, expectMultiple: boolean): boolean {
if (expectMultiple) {
return Array.isArray(value) && value.every(v => this.checkSingleType(v, dataType));
}
return this.checkSingleType(value, dataType);
}
private checkSingleType(value: any, dataType: DataType): boolean {
switch (dataType) {
case DataType.STRING: return typeof value === 'string';
case DataType.NUMBER: return typeof value === 'number' && !isNaN(value);
case DataType.BOOLEAN: return typeof value === 'boolean';
case DataType.DATE: return !isNaN(Date.parse(value));
default: return false;
}
}
}
type CompiledValidationFunction = (value: any) => ValidationResult;
interface ValidationStep {
type: string;
validator: (value: any) => boolean;
errorMessage: string;
}
2. Pool de workers pour validations asynchrones
// Worker pool pour validation parallèle haute performance
export class ValidationWorkerPool {
private workers: Worker[] = [];
private taskQueue: ValidationTask[] = [];
private activeWorkers = new Set<number>();
private workerResults = new Map<string, Promise<ValidationResult>>();
constructor(private poolSize: number = navigator.hardwareConcurrency || 4) {
this.initializeWorkers();
}
private initializeWorkers(): void {
for (let i = 0; i < this.poolSize; i++) {
const worker = new Worker(new URL('./validation-worker.ts', import.meta.url));
worker.onmessage = (event) => {
this.handleWorkerMessage(i, event.data);
};
worker.onerror = (error) => {
console.error(`Erreur worker ${i}:`, error);
this.handleWorkerError(i, error);
};
this.workers[i] = worker;
}
}
async validateAsync(
fieldSpec: InputFieldSpec,
value: any,
priority: 'low' | 'normal' | 'high' = 'normal'
): Promise<ValidationResult> {
const taskId = this.generateTaskId();
const task: ValidationTask = {
id: taskId,
fieldSpec: JSON.parse(JSON.stringify(fieldSpec)), // Clone pour sérialisation
value,
priority,
timestamp: Date.now()
};
// Créer la promesse de résultat
const resultPromise = new Promise<ValidationResult>((resolve, reject) => {
task.resolve = resolve;
task.reject = reject;
});
this.workerResults.set(taskId, resultPromise);
// Ajouter à la queue avec priorité
this.addToQueue(task);
this.processQueue();
return resultPromise;
}
private addToQueue(task: ValidationTask): void {
// Insertion avec tri par priorité
const priorityOrder = { high: 0, normal: 1, low: 2 };
let insertIndex = this.taskQueue.length;
for (let i = 0; i < this.taskQueue.length; i++) {
if (priorityOrder[task.priority] < priorityOrder[this.taskQueue[i].priority]) {
insertIndex = i;
break;
}
}
this.taskQueue.splice(insertIndex, 0, task);
}
private processQueue(): void {
// Assigner les tâches aux workers disponibles
for (let workerId = 0; workerId < this.workers.length; workerId++) {
if (!this.activeWorkers.has(workerId) && this.taskQueue.length > 0) {
const task = this.taskQueue.shift()!;
this.assignTaskToWorker(workerId, task);
}
}
}
private assignTaskToWorker(workerId: number, task: ValidationTask): void {
this.activeWorkers.add(workerId);
const worker = this.workers[workerId];
worker.postMessage({
type: 'VALIDATE',
taskId: task.id,
fieldSpec: task.fieldSpec,
value: task.value
});
// Timeout de sécurité
setTimeout(() => {
if (this.activeWorkers.has(workerId)) {
this.handleWorkerTimeout(workerId, task);
}
}, 30000); // 30 secondes timeout
}
private handleWorkerMessage(workerId: number, message: any): void {
this.activeWorkers.delete(workerId);
if (message.type === 'VALIDATION_RESULT') {
const resultPromise = this.workerResults.get(message.taskId);
if (resultPromise) {
const task = this.findTaskById(message.taskId);
if (task?.resolve) {
task.resolve(message.result);
}
this.workerResults.delete(message.taskId);
}
}
// Traiter la prochaine tâche en queue
this.processQueue();
}
// Métriques de performance du pool
getPoolMetrics(): WorkerPoolMetrics {
return {
totalWorkers: this.workers.length,
activeWorkers: this.activeWorkers.size,
queueLength: this.taskQueue.length,
avgTaskCompletionTime: this.calculateAvgCompletionTime(),
throughput: this.calculateThroughput()
};
}
// Optimisation dynamique de la taille du pool
optimizePoolSize(): void {
const metrics = this.getPoolMetrics();
if (metrics.queueLength > metrics.totalWorkers * 2 && metrics.totalWorkers < 16) {
// Augmenter la taille du pool si queue trop longue
this.addWorker();
} else if (metrics.avgTaskCompletionTime < 10 && metrics.totalWorkers > 2) {
// Réduire si les tâches sont trop rapides (overhead de sérialisation)
this.removeWorker();
}
}
}
// Worker de validation (fichier séparé: validation-worker.ts)
self.onmessage = async (event) => {
const { type, taskId, fieldSpec, value } = event.data;
if (type === 'VALIDATE') {
try {
// Import dynamique pour éviter le bundling
const { FieldValidator } = await import('./field-validator');
const validator = new FieldValidator();
const result = await validator.validate(fieldSpec, value);
self.postMessage({
type: 'VALIDATION_RESULT',
taskId,
result
});
} catch (error) {
self.postMessage({
type: 'VALIDATION_ERROR',
taskId,
error: error.message
});
}
}
};
🔧 Extension du protocole
1. Système de plugins
// Architecture de plugins pour étendre le protocole
export interface ProtocolPlugin {
name: string;
version: string;
// Hooks du cycle de vie
onFieldSpecLoad?(fieldSpec: InputFieldSpec): InputFieldSpec;
onValidationStart?(fieldSpec: InputFieldSpec, value: any): void;
onValidationComplete?(result: ValidationResult): ValidationResult;
onValuesResolve?(endpoint: ValuesEndpoint, options: FetchValuesOptions): FetchValuesOptions;
// Extensions de contraintes
customConstraints?: Map<string, ConstraintProcessor>;
// Extensions de types
customDataTypes?: Map<string, DataTypeProcessor>;
// Méta-informations
dependencies?: string[];
conflicts?: string[];
}
export class ProtocolExtensionManager {
private plugins = new Map<string, ProtocolPlugin>();
private hooks = new Map<string, ProtocolPlugin[]>();
registerPlugin(plugin: ProtocolPlugin): void {
// Vérifier les dépendances
this.validatePluginDependencies(plugin);
// Vérifier les conflits
this.checkPluginConflicts(plugin);
// Enregistrer le plugin
this.plugins.set(plugin.name, plugin);
// Enregistrer les hooks
this.registerPluginHooks(plugin);
console.log(`Plugin ${plugin.name} v${plugin.version} enregistré`);
}
private validatePluginDependencies(plugin: ProtocolPlugin): void {
if (plugin.dependencies) {
for (const dependency of plugin.dependencies) {
if (!this.plugins.has(dependency)) {
throw new Error(
`Plugin ${plugin.name} nécessite la dépendance: ${dependency}`
);
}
}
}
}
async executeHook<T>(
hookName: string,
context: T,
...args: any[]
): Promise<T> {
const plugins = this.hooks.get(hookName) || [];
let result = context;
for (const plugin of plugins) {
try {
const hookMethod = (plugin as any)[hookName];
if (typeof hookMethod === 'function') {
result = await hookMethod.call(plugin, result, ...args) || result;
}
} catch (error) {
console.error(`Erreur dans le plugin ${plugin.name}, hook ${hookName}:`, error);
// Continuer avec les autres plugins
}
}
return result;
}
getExtendedConstraintProcessors(): Map<string, ConstraintProcessor> {
const processors = new Map<string, ConstraintProcessor>();
for (const plugin of this.plugins.values()) {
if (plugin.customConstraints) {
for (const [name, processor] of plugin.customConstraints) {
processors.set(name, processor);
}
}
}
return processors;
}
}
// Exemple de plugin pour l'internationalisation
export class I18nPlugin implements ProtocolPlugin {
name = 'i18n';
version = '1.0.0';
constructor(private locale: string, private translations: Record<string, any>) {}
onFieldSpecLoad(fieldSpec: InputFieldSpec): InputFieldSpec {
// Traduire les textes de l'interface
const translated = { ...fieldSpec };
if (this.translations[this.locale]) {
const localeTranslations = this.translations[this.locale];
if (localeTranslations.fields?.[fieldSpec.displayName]) {
const fieldTranslations = localeTranslations.fields[fieldSpec.displayName];
translated.displayName = fieldTranslations.displayName || fieldSpec.displayName;
translated.description = fieldTranslations.description || fieldSpec.description;
// Traduire les messages d'erreur des contraintes
translated.constraints = fieldSpec.constraints.map(constraint => ({
...constraint,
errorMessage: fieldTranslations.constraints?.[constraint.name]?.errorMessage
|| constraint.errorMessage
}));
}
}
return translated;
}
onValidationComplete(result: ValidationResult): ValidationResult {
// Traduire les messages d'erreur
const translatedErrors = result.errors.map(error => ({
...error,
message: this.translateErrorMessage(error.message, error.constraintName)
}));
return {
...result,
errors: translatedErrors
};
}
private translateErrorMessage(message: string, constraintName: string): string {
const translations = this.translations[this.locale]?.errors;
return translations?.[constraintName] || translations?.generic || message;
}
}
// Plugin pour validation métier personnalisée
export class BusinessLogicPlugin implements ProtocolPlugin {
name = 'business-logic';
version = '1.0.0';
customConstraints = new Map<string, ConstraintProcessor>([
['unique_identifier', new UniqueIdentifierProcessor()],
['business_rules', new BusinessRulesProcessor()],
['conditional_validation', new ConditionalValidationProcessor()]
]);
constructor(private businessService: BusinessLogicService) {}
onValidationStart(fieldSpec: InputFieldSpec, value: any): void {
// Logger les validations pour audit
this.businessService.logValidationAttempt(fieldSpec.displayName, value);
}
}
2. Analyse de performance et profiling
// Profiler avancé pour analyser les performances
export class ValidationProfiler {
private profiles = new Map<string, PerformanceProfile>();
private activeProfiles = new Map<string, PerformanceSession>();
startProfiling(sessionId: string): void {
this.activeProfiles.set(sessionId, {
startTime: performance.now(),
operations: [],
memoryStart: this.getMemoryUsage()
});
}
recordOperation(
sessionId: string,
operation: string,
duration: number,
metadata?: any
): void {
const session = this.activeProfiles.get(sessionId);
if (session) {
session.operations.push({
operation,
duration,
timestamp: performance.now() - session.startTime,
metadata
});
}
}
endProfiling(sessionId: string): PerformanceReport {
const session = this.activeProfiles.get(sessionId);
if (!session) {
throw new Error(`Session de profiling non trouvée: ${sessionId}`);
}
const totalDuration = performance.now() - session.startTime;
const memoryEnd = this.getMemoryUsage();
const report: PerformanceReport = {
sessionId,
totalDuration,
memoryDelta: memoryEnd - session.memoryStart,
operationCount: session.operations.length,
operations: session.operations,
bottlenecks: this.identifyBottlenecks(session.operations),
recommendations: this.generateRecommendations(session.operations)
};
this.activeProfiles.delete(sessionId);
this.profiles.set(sessionId, {
report,
timestamp: Date.now()
});
return report;
}
private identifyBottlenecks(operations: PerformanceOperation[]): Bottleneck[] {
const bottlenecks: Bottleneck[] = [];
// Identifier les opérations les plus lentes
const sortedOps = [...operations].sort((a, b) => b.duration - a.duration);
const slowOps = sortedOps.slice(0, 3).filter(op => op.duration > 10);
for (const op of slowOps) {
bottlenecks.push({
type: 'slow_operation',
operation: op.operation,
impact: 'high',
description: `Opération ${op.operation} prend ${op.duration.toFixed(2)}ms`,
suggestion: this.getSuggestionForOperation(op.operation)
});
}
// Identifier les opérations répétitives
const operationCounts = new Map<string, number>();
operations.forEach(op => {
operationCounts.set(op.operation, (operationCounts.get(op.operation) || 0) + 1);
});
for (const [operation, count] of operationCounts) {
if (count > 10) {
bottlenecks.push({
type: 'repeated_operation',
operation,
impact: 'medium',
description: `Opération ${operation} répétée ${count} fois`,
suggestion: 'Considérer la mise en cache ou le batching'
});
}
}
return bottlenecks;
}
generateOptimizationReport(): OptimizationReport {
const allProfiles = Array.from(this.profiles.values());
return {
totalSessions: allProfiles.length,
averageSessionDuration: this.calculateAverageSessionDuration(allProfiles),
commonBottlenecks: this.findCommonBottlenecks(allProfiles),
performanceTrends: this.analyzePerformanceTrends(allProfiles),
recommendations: this.generateGlobalRecommendations(allProfiles)
};
}
private calculateAverageSessionDuration(profiles: PerformanceProfile[]): number {
if (profiles.length === 0) return 0;
const totalDuration = profiles.reduce(
(sum, profile) => sum + profile.report.totalDuration,
0
);
return totalDuration / profiles.length;
}
private findCommonBottlenecks(profiles: PerformanceProfile[]): CommonBottleneck[] {
const bottleneckFrequency = new Map<string, number>();
profiles.forEach(profile => {
profile.report.bottlenecks.forEach(bottleneck => {
const key = `${bottleneck.type}:${bottleneck.operation}`;
bottleneckFrequency.set(key, (bottleneckFrequency.get(key) || 0) + 1);
});
});
return Array.from(bottleneckFrequency.entries())
.filter(([, frequency]) => frequency >= 3)
.map(([key, frequency]) => {
const [type, operation] = key.split(':');
return {
type,
operation,
frequency,
impactLevel: frequency > 10 ? 'critical' : frequency > 5 ? 'high' : 'medium'
};
})
.sort((a, b) => b.frequency - a.frequency);
}
}
interface PerformanceReport {
sessionId: string;
totalDuration: number;
memoryDelta: number;
operationCount: number;
operations: PerformanceOperation[];
bottlenecks: Bottleneck[];
recommendations: string[];
}
interface Bottleneck {
type: 'slow_operation' | 'repeated_operation' | 'memory_leak';
operation: string;
impact: 'low' | 'medium' | 'high' | 'critical';
description: string;
suggestion: string;
}
🤝 Contributions au protocole
Guide pour contribuer
1. Architecture des contributions
graph TB
subgraph "Types de contributions"
SPEC[📋 Spécification protocole]
IMPL[💻 Implémentations]
DOCS[📖 Documentation]
TESTS[🧪 Tests de conformité]
end
subgraph "Processus de validation"
RFC[📝 RFC (Request for Comments)]
REVIEW[👥 Revue par les pairs]
PROTO[🏗️ Prototype]
COMPAT[🔄 Tests compatibilité]
end
subgraph "Intégration"
MERGE[🔀 Intégration]
RELEASE[🚀 Release]
MIGRATION[📦 Guide migration]
end
SPEC --> RFC
IMPL --> REVIEW
DOCS --> REVIEW
TESTS --> COMPAT
RFC --> PROTO
REVIEW --> PROTO
PROTO --> COMPAT
COMPAT --> MERGE
MERGE --> RELEASE
RELEASE --> MIGRATION
classDef contribution fill:#e8f5e8
classDef validation fill:#fff3e0
classDef integration fill:#e3f2fd
class SPEC,IMPL,DOCS,TESTS contribution
class RFC,REVIEW,PROTO,COMPAT validation
class MERGE,RELEASE,MIGRATION integration
2. Standards de contribution
// Template pour une nouvelle contrainte
export interface NewConstraintProposal {
// Métadonnées obligatoires
name: string;
version: string;
author: string;
description: string;
// Spécification technique
constraintSpec: {
supportedDataTypes: DataType[];
parameters: ConstraintParameter[];
behavior: ConstraintBehavior;
};
// Tests de conformité obligatoires
conformanceTests: ConformanceTest[];
// Documentation
documentation: {
examples: ConstraintExample[];
useCases: string[];
migration?: MigrationGuide;
};
// Compatibilité
compatibility: {
minProtocolVersion: string;
backwardCompatible: boolean;
breakingChanges?: string[];
};
}
// Tests de conformité standardisés
export interface ConformanceTest {
name: string;
description: string;
fieldSpec: InputFieldSpec;
testCases: Array<{
input: any;
expectedResult: {
isValid: boolean;
errors?: string[];
};
description: string;
}>;
}
// Exemple de contribution: constraint "credit_card"
export const CreditCardConstraintProposal: NewConstraintProposal = {
name: "credit_card_validation",
version: "1.0.0",
author: "community",
description: "Validation de numéros de carte de crédit avec algorithme de Luhn",
constraintSpec: {
supportedDataTypes: [DataType.STRING],
parameters: [
{
name: "acceptedTypes",
type: "string[]",
description: "Types de cartes acceptées (visa, mastercard, amex, etc.)",
optional: true
}
],
behavior: {
validatesFormat: true,
validatesChecksum: true,
cacheable: true
}
},
conformanceTests: [
{
name: "visa_card_validation",
description: "Validation d'un numéro Visa valide",
fieldSpec: {
displayName: "Numéro de carte",
dataType: DataType.STRING,
expectMultipleValues: false,
required: true,
constraints: [
{
name: "cardValidation",
type: "credit_card_validation",
params: { acceptedTypes: ["visa"] }
}
]
},
testCases: [
{
input: "4111111111111111",
expectedResult: { isValid: true },
description: "Numéro Visa valide"
},
{
input: "5555555555554444",
expectedResult: {
isValid: false,
errors: ["Type de carte non accepté"]
},
description: "Numéro Mastercard avec restriction Visa"
}
]
}
],
documentation: {
examples: [
{
title: "Validation carte de crédit basique",
fieldSpec: "/* voir conformanceTests */",
description: "Exemple d'usage standard"
}
],
useCases: [
"Formulaires de paiement e-commerce",
"Validation de moyens de paiement",
"Systèmes de facturation"
]
},
compatibility: {
minProtocolVersion: "1.0.0",
backwardCompatible: true
}
};
3. Implémentation de référence
// Implémentation de référence pour les nouveaux contributeurs
export class ReferenceConstraintProcessor implements ConstraintProcessor {
canProcess(constraint: ConstraintDescriptor): boolean {
return constraint.name === 'credit_card_validation';
}
async process(
constraint: ConstraintDescriptor,
value: any,
fieldSpec: InputFieldSpec,
context: ValidationContext
): Promise<ProcessingResult> {
if (typeof value !== 'string') {
return {
isValid: false,
errors: [new ValidationError(
constraint.name,
'Numéro de carte doit être une chaîne de caractères',
value
)]
};
}
// Nettoyer le numéro (retirer espaces et tirets)
const cleanNumber = value.replace(/[\s-]/g, '');
// Vérifier le format de base
if (!/^\d{13,19}$/.test(cleanNumber)) {
return {
isValid: false,
errors: [new ValidationError(
constraint.name,
constraint.errorMessage || 'Format de numéro de carte invalide',
value
)]
};
}
// Algorithme de Luhn
if (!this.validateLuhn(cleanNumber)) {
return {
isValid: false,
errors: [new ValidationError(
constraint.name,
constraint.errorMessage || 'Numéro de carte invalide',
value
)]
};
}
// Vérifier les types acceptés si spécifiés
const acceptedTypes = constraint.acceptedTypes;
if (acceptedTypes && acceptedTypes.length > 0) {
const cardType = this.detectCardType(cleanNumber);
if (!acceptedTypes.includes(cardType)) {
return {
isValid: false,
errors: [new ValidationError(
constraint.name,
`Type de carte ${cardType} non accepté`,
value
)]
};
}
}
return { isValid: true, errors: [] };
}
private validateLuhn(number: string): boolean {
let sum = 0;
let isEven = false;
for (let i = number.length - 1; i >= 0; i--) {
let digit = parseInt(number[i]);
if (isEven) {
digit *= 2;
if (digit > 9) {
digit -= 9;
}
}
sum += digit;
isEven = !isEven;
}
return sum % 10 === 0;
}
private detectCardType(number: string): string {
// Patterns de détection simplifiés
if (/^4/.test(number)) return 'visa';
if (/^5[1-5]/.test(number)) return 'mastercard';
if (/^3[47]/.test(number)) return 'amex';
if (/^6/.test(number)) return 'discover';
return 'unknown';
}
}
Roadmap technique
Version 2.0 (Planifiée)
// Nouvelles fonctionnalités prévues
interface ProtocolV2Extensions {
// Validation conditionnelle avancée
conditionalConstraints: {
condition: string; // Expression logique
constraints: ConstraintDescriptor[];
}[];
// Internationalisation native
i18n: {
defaultLocale: string;
translations: Record<string, TranslationSet>;
};
// Validation côté serveur intégrée
serverValidation: {
endpoint: string;
batchSupport: boolean;
realTimeValidation: boolean;
};
// Métriques et analytics intégrés
analytics: {
trackPerformance: boolean;
trackUserBehavior: boolean;
metricsEndpoint?: string;
};
}
📊 Analyse critique et limites
Forces du protocole actuel
- ✅ Simplicité conceptuelle - API claire et compréhensible
- ✅ Interopérabilité - Standard cross-language efficace
- ✅ Extensibilité - Architecture plugin bien pensée
- ✅ Performance - Optimisations disponibles pour tous les cas d’usage
Limites identifiées
- ⚠️ Validation conditionnelle complexe - Limitée aux cas simples
- ⚠️ Gestion d’état - Pas de solution native pour les formulaires multi-étapes
- ⚠️ Synchronisation - Pas de mécanisme de mise à jour temps réel des spécifications
- ⚠️ Offline - Support limité pour les applications déconnectées
Recommandations d’amélioration
// Proposition d'amélioration: ValidationContext enrichi
interface EnhancedValidationContext {
// Contexte actuel
formData: Record<string, any>;
userContext: UserContext;
businessLogic: BusinessLogicService;
// Nouvelles capacités proposées
formState: FormState; // Multi-step, wizard, etc.
dependencies: FieldDependencyGraph;
realTimeSync: RealtimeSyncManager;
offlineSupport: OfflineValidationCache;
}
🎯 Conclusion
Ce guide expert a couvert :
- 🔬 Architecture interne détaillée avec les compromis techniques
- ⚡ Optimisations avancées pour les cas d’usage haute performance
- 🔧 Extension du protocole via le système de plugins
- 🤝 Contribution au projet avec standards et processus
- 📊 Analyse critique des forces et limitations actuelles
Pour aller plus loin
- 🔍 Code source TypeScript - Implémentation de référence
- ☕ Code source Java - Implémentation enterprise
- 🧪 Tests de conformité - Suite de tests standardisés
- 💬 Discussions techniques - Échanges avec la communauté
Temps estimé : 2-4 heures • Difficulté : Expert