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0e4517d901
1. All numerical fields are added to sort index automatically since that makes logical sense. 2. Search fields to be used as a facet are to have a `facet: true` property - removes duplication. 3. If someone wants to use a faceted field also to search against (rare scenario), then they can duplicate that field without the `facet: true` property.
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
#pragma once
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#include <iostream>
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#include <string>
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#include <sparsepp.h>
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#include "store.h"
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#include "field.h"
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#include "collection.h"
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// Singleton, for managing meta information of all collections and house keeping
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class CollectionManager {
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private:
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Store *store;
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spp::sparse_hash_map<std::string, Collection*> collections;
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spp::sparse_hash_map<uint32_t, std::string> collection_id_names;
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// Auto incrementing ID assigned to each collection
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// Using a ID instead of a collection's name makes renaming possible
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uint32_t next_collection_id;
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static constexpr const char* COLLECTION_NAME_KEY = "name";
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static constexpr const char* COLLECTION_ID_KEY = "id";
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static constexpr const char* COLLECTION_SEARCH_FIELDS_KEY = "fields";
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static constexpr const char* COLLECTION_TOKEN_ORDERING_FIELD_KEY = "token_ranking_field";
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std::string auth_key;
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CollectionManager();
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~CollectionManager() = default;
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public:
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static CollectionManager & get_instance() {
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static CollectionManager instance;
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return instance;
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}
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CollectionManager(CollectionManager const&) = delete;
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void operator=(CollectionManager const&) = delete;
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Option<bool> init(Store *store, const std::string & auth_key);
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// frees in-memory data structures when server is shutdown - helps us run a memory leak detecter properly
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void dispose();
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Collection* init_collection(const nlohmann::json & collection_meta, const uint32_t collection_next_seq_id);
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void add_to_collections(Collection* collection);
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bool auth_key_matches(std::string auth_key_sent);
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Option<Collection*> create_collection(std::string name, const std::vector<field> & fields,
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const std::string & token_ranking_field = "");
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Collection* get_collection(const std::string & collection_name);
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Collection* get_collection_with_id(uint32_t collection_id);
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std::vector<Collection*> get_collections();
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Option<bool> drop_collection(std::string collection_name, const bool remove_from_store = true);
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uint32_t get_next_collection_id();
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void set_next_collection_id(uint32_t next_id);
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Store* get_store();
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static constexpr const char* NEXT_COLLECTION_ID_KEY = "$CI";
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}; |