Line data    Source code

       1             : #pragma once
       2             : 
       3             : #include "envoy/common/optref.h"
       4             : #include "envoy/common/pure.h"
       5             : 
       6             : namespace Envoy {
       7             : namespace Config {
       8             : 
       9             : /**
      10             :  * A provider for extension configurations obtained either statically or via
      11             :  * the extension configuration discovery service. Dynamically updated extension
      12             :  * configurations may share subscriptions across extension config providers.
      13             :  */
      14             : template <class FactoryCallback> class ExtensionConfigProvider {
      15             : public:
      16         436 :   virtual ~ExtensionConfigProvider() = default;
      17             : 
      18             :   /**
      19             :    * Get the extension configuration resource name.
      20             :    **/
      21             :   virtual const std::string& name() PURE;
      22             : 
      23             :   /**
      24             :    * @return FactoryCallback an extension factory callback. Note that if the
      25             :    * provider has not yet performed an initial configuration load and no
      26             :    * default is provided, an empty optional will be returned. The factory
      27             :    * callback is the latest version of the extension configuration, and should
      28             :    * generally apply only to new requests and connections.
      29             :    */
      30             :   virtual OptRef<FactoryCallback> config() PURE;
      31             : };
      32             : 
      33             : } // namespace Config
      34             : } // namespace Envoy