DefaultEndpointProvider.h

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#pragma once
 
#include <aws/core/endpoint/AWSPartitions.h>
#include <aws/core/endpoint/EndpointProviderBase.h>
#include <aws/core/endpoint/EndpointParameter.h>
#include <aws/core/endpoint/ClientContextParameters.h>
#include <aws/core/endpoint/BuiltInParameters.h>
#include <aws/core/utils/memory/stl/AWSArray.h>
 
#include <aws/crt/endpoints/RuleEngine.h>
 
#include <aws/core/utils/Outcome.h>
#include <aws/core/client/AWSError.h>
#include <aws/core/client/CoreErrors.h>
#include "aws/core/utils/logging/LogMacros.h"
 
namespace Aws
{
    namespace Endpoint
    {
        static const char DEFAULT_ENDPOINT_PROVIDER_TAG[] = "Aws::Endpoint::DefaultEndpointProvider";
 
        AWS_CORE_API ResolveEndpointOutcome
        ResolveEndpointDefaultImpl(const Aws::Crt::Endpoints::RuleEngine& ruleEngine,
                                   const EndpointParameters& builtInParameters,
                                   const EndpointParameters& clientContextParameters,
                                   const EndpointParameters& endpointParameters);
 
        template<typename ClientConfigurationT = Aws::Client::GenericClientConfiguration<false>,
                 typename BuiltInParametersT = Aws::Endpoint::BuiltInParameters,
                 typename ClientContextParametersT = Aws::Endpoint::ClientContextParameters>
        class AWS_CORE_API DefaultEndpointProvider : public EndpointProviderBase<ClientConfigurationT, BuiltInParametersT, ClientContextParametersT>
        {
        public:
            DefaultEndpointProvider(const char* endpointRulesBlob, const size_t endpointRulesBlobSz)
                : m_crtRuleEngine(Aws::Crt::ByteCursorFromArray((const uint8_t*) endpointRulesBlob, endpointRulesBlobSz),
                                  Aws::Crt::ByteCursorFromArray((const uint8_t*) AWSPartitions::GetPartitionsBlob(), AWSPartitions::PartitionsBlobSize))
            {
                if(!m_crtRuleEngine) {
                    AWS_LOGSTREAM_FATAL(DEFAULT_ENDPOINT_PROVIDER_TAG, "Invalid CRT Rule Engine state");
                }
            }
 
            virtual ~DefaultEndpointProvider()
            {
            }
 
            void InitBuiltInParameters(const ClientConfigurationT& config) override
            {
                m_builtInParameters.SetFromClientConfiguration(config);
            }
 
            ResolveEndpointOutcome ResolveEndpoint(const EndpointParameters& endpointParameters) const override
            {
                auto ResolveEndpointDefaultImpl = Aws::Endpoint::ResolveEndpointDefaultImpl;
                return ResolveEndpointDefaultImpl(m_crtRuleEngine, m_builtInParameters.GetAllParameters(), m_clientContextParameters.GetAllParameters(), endpointParameters);
            };
 
            const ClientContextParametersT& GetClientContextParameters() const override
            {
                return m_clientContextParameters;
            }
            ClientContextParametersT& AccessClientContextParameters() override
            {
                return m_clientContextParameters;
            }
 
            const BuiltInParametersT& GetBuiltInParameters() const
            {
                return m_builtInParameters;
            }
            BuiltInParametersT& AccessBuiltInParameters()
            {
                return m_builtInParameters;
            }
 
            void OverrideEndpoint(const Aws::String& endpoint) override
            {
                m_builtInParameters.OverrideEndpoint(endpoint);
            }
 
        protected:
            /* Crt RuleEngine evaluator built using the service's Rule engine */
            Aws::Crt::Endpoints::RuleEngine m_crtRuleEngine;
 
            /* Also known as a configurable parameters defined by the AWS Service in their c2j/smithy model definition */
            ClientContextParametersT m_clientContextParameters;
 
            /* Also known as parameters on the ClientConfiguration in this SDK */
            BuiltInParametersT m_builtInParameters;
        };
 
        // Export symbol from the DLL:
        template class AWS_CORE_API DefaultEndpointProvider<Aws::Client::GenericClientConfiguration</*HasEndpointDiscovery*/ true> >;
    } // namespace Endpoint
} // namespace Aws