//
//
// Copyright 2020 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//

#ifndef GRPC_CORE_EXT_XDS_CERTIFICATE_PROVIDER_REGISTRY_H
#define GRPC_CORE_EXT_XDS_CERTIFICATE_PROVIDER_REGISTRY_H

#include <grpc/support/port_platform.h>

#include <string>

#include "src/core/ext/xds/certificate_provider_factory.h"

namespace grpc_core {

// Global registry for all the certificate provider plugins.
class CertificateProviderRegistry {
 public:
  // Returns the factory for the plugin keyed by name.
  static CertificateProviderFactory* LookupCertificateProviderFactory(
      absl::string_view name);

  // The following methods are used to create and populate the
  // CertificateProviderRegistry. NOT THREAD SAFE -- to be used only during
  // global gRPC initialization and shutdown.

  // Global initialization of the registry.
  static void InitRegistry();

  // Global shutdown of the registry.
  static void ShutdownRegistry();

  // Register a provider with the registry. Can only be called after calling
  // InitRegistry(). The key of the factory is extracted from factory
  // parameter with method CertificateProviderFactory::name. If the same key
  // is registered twice, an exception is raised.
  static void RegisterCertificateProviderFactory(
      std::unique_ptr<CertificateProviderFactory> factory);
};

}  // namespace grpc_core

#endif  // GRPC_CORE_EXT_XDS_CERTIFICATE_PROVIDER_REGISTRY_H