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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* \class storage::Process
*
* \brief Storage process as a library.
*
* A class with a main function cannot be tested within C++ code. This class
* contains the process as a library such that it can be tested and used in
* other pieces of code.
*
* Specializations of this class will exist to add the funcionality needed for
* the various process types.
*/
#pragma once
#include <vespa/config-bucketspaces.h>
#include <vespa/config-stor-distribution.h>
#include <vespa/config/subscription/configsubscriber.h>
#include <vespa/config/subscription/configuri.h>
#include <vespa/document/config/config-documenttypes.h>
#include <vespa/storage/config/config-stor-bouncer.h>
#include <vespa/storage/config/config-stor-communicationmanager.h>
#include <vespa/storage/config/config-stor-server.h>
#include <vespa/storage/storageserver/applicationgenerationfetcher.h>
namespace document { class DocumentTypeRepo; }
namespace storage {
class StorageNode;
struct StorageNodeContext;
class Process : public ApplicationGenerationFetcher {
protected:
using DocumentTypesConfig = document::config::DocumenttypesConfig;
using BucketspacesConfig = vespa::config::content::core::BucketspacesConfig;
using CommunicationManagerConfig = vespa::config::content::core::StorCommunicationmanagerConfig;
using StorBouncerConfig = vespa::config::content::core::StorBouncerConfig;
using StorDistributionConfig = vespa::config::content::StorDistributionConfig;
using StorServerConfig = vespa::config::content::core::StorServerConfig;
using DocumentTypeRepoSP = std::shared_ptr<const document::DocumentTypeRepo>;
config::ConfigUri _configUri;
DocumentTypeRepoSP getTypeRepo() { return _repos.back(); }
config::ConfigSubscriber _configSubscriber;
std::unique_ptr<config::ConfigHandle<DocumentTypesConfig>> _document_cfg_handle;
std::unique_ptr<config::ConfigHandle<BucketspacesConfig>> _bucket_spaces_cfg_handle;
std::unique_ptr<config::ConfigHandle<CommunicationManagerConfig>> _comm_mgr_cfg_handle;
std::unique_ptr<config::ConfigHandle<StorBouncerConfig>> _bouncer_cfg_handle;
std::unique_ptr<config::ConfigHandle<StorDistributionConfig>> _distribution_cfg_handle;
std::unique_ptr<config::ConfigHandle<StorServerConfig>> _server_cfg_handle;
private:
std::vector<DocumentTypeRepoSP> _repos;
public:
using UP = std::unique_ptr<Process>;
explicit Process(const config::ConfigUri & configUri);
~Process() override;
virtual void setupConfig(vespalib::duration subscribeTimeout);
virtual void createNode() = 0;
virtual bool configUpdated();
virtual void updateConfig();
virtual void shutdown();
virtual void removeConfigSubscriptions() {}
virtual StorageNode& getNode() = 0;
virtual StorageNodeContext& getContext() = 0;
int64_t getGeneration() const override;
};
} // storage
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