qabstractgrpcchannel.h

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// Copyright (C) 2022 The Qt Company Ltd.

// Copyright (C) 2019 Alexey Edelev <semlanik@gmail.com>

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef QABSTRACTGRPCCHANNEL_H

#define QABSTRACTGRPCCHANNEL_H

#include <QtGrpc/qtgrpcglobal.h>

#include <QtCore/qmetatype.h>

#include <QtCore/qstringfwd.h>

#include <QtCore/qtclasshelpermacros.h>

#include <memory>

QT_BEGIN_NAMESPACE

class QAbstractProtobufSerializer;

class QGrpcBidiStream;

class QGrpcCallReply;

class QGrpcOperationContext;

class QGrpcChannelOptions;

class QGrpcCallOptions;

class QGrpcClientBase;

class QGrpcClientStream;

class QGrpcServerStream;

class QGrpcInterceptorChain;

class QAbstractGrpcChannelPrivate;

class Q_GRPC_EXPORT QAbstractGrpcChannel

public:

    virtual ~QAbstractGrpcChannel();

    [[nodiscard]] virtual std::shared_ptr<QAbstractProtobufSerializer> serializer() const = 0;

    [[nodiscard]] const QGrpcChannelOptions &channelOptions() const & noexcept;

    void channelOptions() const && = delete;

    void setChannelOptions(const QGrpcChannelOptions &options);

    void setChannelOptions(QGrpcChannelOptions &&options);

    [[nodiscard]] const QGrpcInterceptorChain &interceptorChain() const & noexcept;

    void interceptorChain() const && = delete;

protected:

    QAbstractGrpcChannel();

    explicit QAbstractGrpcChannel(QAbstractGrpcChannelPrivate &dd);

    explicit QAbstractGrpcChannel(const QGrpcChannelOptions &options);

    explicit QAbstractGrpcChannel(QGrpcInterceptorChain interceptorChain);

    explicit QAbstractGrpcChannel(const QGrpcChannelOptions &options,

                                  QGrpcInterceptorChain interceptorChain);

private:

    virtual void call(QGrpcOperationContext *operationContext, QByteArray &&messageData) = 0;

    virtual void serverStream(QGrpcOperationContext *operationContext,

                              QByteArray &&messageData) = 0;

    virtual void clientStream(QGrpcOperationContext *operationContext,

                              QByteArray &&messageData) = 0;

    virtual void bidiStream(QGrpcOperationContext *operationContext, QByteArray &&messageData) = 0;

private:

    friend class QGrpcClientBase;

    friend class QGrpcClientBasePrivate;

    std::unique_ptr<QAbstractGrpcChannelPrivate> d_ptr;

    Q_DISABLE_COPY_MOVE(QAbstractGrpcChannel)

    Q_DECLARE_PRIVATE(QAbstractGrpcChannel)

};

QT_END_NAMESPACE

#endif // QABSTRACTGRPCCHANNEL_H