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https://github.com/mudita/MuditaOS.git
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2c3965df18
Pagination added for contact endpoint. Introduced PagedContext and query message for contacts that returns the required contacts together with the number of all contacts in db.
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include <memory>
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#include <string>
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#include <functional>
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#include <log/log.hpp>
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#include <module-services/service-desktop/endpoints/Context.hpp>
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namespace db
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{
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class QueryResult; // Forward declaration
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using QueryCallbackFunction = std::function<bool(db::QueryResult *)>;
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using EndpointQueryCallbackFunction = std::function<bool(db::QueryResult *, parserFSM::Context &)>;
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using EndpointQueryCallbackFunctionWithPages = std::function<bool(db::QueryResult *, parserFSM::PagedContext &)>;
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class QueryListener
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{
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public:
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virtual ~QueryListener() = default;
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virtual bool handleQueryResponse(QueryResult *response) = 0;
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};
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class QueryCallback : public db::QueryListener
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{
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public:
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static std::unique_ptr<QueryCallback> fromFunction(QueryCallbackFunction &&callbackFunction);
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explicit QueryCallback(QueryCallbackFunction &&_callback);
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bool handleQueryResponse(QueryResult *response) override;
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private:
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QueryCallbackFunction callback;
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};
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class EndpointListener : public db::QueryListener
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{
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public:
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EndpointListener() = default;
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EndpointListener(EndpointQueryCallbackFunction &&_callback, parserFSM::Context &_context);
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bool handleQueryResponse(db::QueryResult *result) override;
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private:
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EndpointQueryCallbackFunction callback;
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parserFSM::Context context;
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};
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class EndpointListenerWithPages : public EndpointListener
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{
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public:
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EndpointListenerWithPages() = default;
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EndpointListenerWithPages(EndpointQueryCallbackFunctionWithPages &&_callback,
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const parserFSM::PagedContext &_context);
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bool handleQueryResponse(db::QueryResult *result) override;
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private:
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EndpointQueryCallbackFunctionWithPages callback;
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parserFSM::PagedContext context;
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};
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/// virtual query input interface
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class Query
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{
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public:
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enum class Type
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{
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Create,
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Read,
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Update,
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Delete
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};
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explicit Query(Type type);
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virtual ~Query() = default;
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QueryListener *getQueryListener() const noexcept;
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void setQueryListener(std::unique_ptr<QueryListener> &&listener) noexcept;
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[[nodiscard]] virtual auto debugInfo() const -> std::string = 0;
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const Type type;
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private:
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std::unique_ptr<QueryListener> queryListener;
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};
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/// virtual query output (result) interface
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class QueryResult
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{
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public:
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explicit QueryResult(std::shared_ptr<Query> requestQuery = nullptr);
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virtual ~QueryResult() = default;
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void setRequestQuery(const std::shared_ptr<Query> &requestQueryToSet);
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std::shared_ptr<Query> getRequestQuery() const noexcept;
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bool handle();
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[[nodiscard]] bool hasListener() const noexcept;
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[[nodiscard]] virtual auto debugInfo() const -> std::string = 0;
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protected:
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std::shared_ptr<Query> requestQuery;
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};
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} // namespace db
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