99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright 2013 - 2022, nymea GmbH
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* Contact: contact@nymea.io
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*
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* This file is part of nymea.
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* This project including source code and documentation is protected by
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* copyright law, and remains the property of nymea GmbH. All rights, including
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* reproduction, publication, editing and translation, are reserved. The use of
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* this project is subject to the terms of a license agreement to be concluded
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* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
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* under https://nymea.io/license
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*
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* GNU Lesser General Public License Usage
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* Alternatively, this project may be redistributed and/or modified under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; version 3. This project is distributed in the hope that
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* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this project. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any further details and any questions please contact us under
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* contact@nymea.io or see our FAQ/Licensing Information on
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* https://nymea.io/license/faq
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef FRONIUSSOLARCONNECTION_H
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#define FRONIUSSOLARCONNECTION_H
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#include <QObject>
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#include <QQueue>
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#include <QHostAddress>
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#include <QNetworkAccessManager>
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#include <network/networkaccessmanager.h>
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#include "froniusnetworkreply.h"
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class FroniusSolarConnection : public QObject
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{
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Q_OBJECT
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public:
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explicit FroniusSolarConnection(NetworkAccessManager *networkManager, const QHostAddress &address, QObject *parent = nullptr);
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QHostAddress address() const;
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void setAddress(const QHostAddress &address);
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bool available() const;
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bool busy() const;
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FroniusNetworkReply *getVersion();
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FroniusNetworkReply *getActiveDevices();
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FroniusNetworkReply *getPowerFlowRealtimeData();
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FroniusNetworkReply *getInverterRealtimeData(int inverterId);
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FroniusNetworkReply *getMeterRealtimeData(int meterId);
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FroniusNetworkReply *getStorageRealtimeData(int meterId);
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signals:
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void availableChanged(bool available);
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private:
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NetworkAccessManager *m_networkManager = nullptr;
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QHostAddress m_address;
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bool m_available = false;
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// Fallback solution for dead nam requests, this happens on some platforms
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// Note: we enable for now the custom network access manager
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// Some fronius inverters keep the connection alive and get stuck somehow.
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// In order to workaround this issue, we have to recreate the nam after each request.
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// Stuff like disableing pipelining, queueing requests did not fix the issue, only
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// destroying and re-creating the nam helped here. Current guess: the persistant TCP connection
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// keeps some resources blocked. The issue is actually on the fronius webserver side, and just on some
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// rare hardware so far.
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QNetworkAccessManager *m_customNetworkManager = nullptr;
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bool m_useCustomNetworkManager = true; // Force for now
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uint m_errorOperationCanceledCount = 0;
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uint m_errorOperationCanceledCountLimit = 3;
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uint m_errorCount = 0;
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uint m_errorCountLimit = 5;
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// Request queue to prevent overloading the device with requests
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FroniusNetworkReply *m_currentReply = nullptr;
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QQueue<FroniusNetworkReply *> m_requestQueue;
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QNetworkRequest buildRequest(const QUrl &url);
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void sendNextRequest();
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};
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#endif // FRONIUSSOLARCONNECTION_H
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