| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QOPCUA_OPCUACONNECTION_P_H |
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| 5 | #define QOPCUA_OPCUACONNECTION_P_H |
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| 6 | |
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| 7 | #include <private/opcuareaditem_p.h> |
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| 8 | #include <private/opcuaserverdiscovery_p.h> |
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| 9 | |
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| 10 | #include <QJSValue> |
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| 11 | #include <QObject> |
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| 12 | #include <QOpcUaClient> |
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| 13 | #include <QOpcUaAuthenticationInformation> |
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| 14 | |
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| 15 | #include <QtQml/qqml.h> |
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| 16 | |
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| 17 | // |
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| 18 | // W A R N I N G |
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| 19 | // ------------- |
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| 20 | // |
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| 21 | // This file is not part of the Qt API. It exists purely as an |
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| 22 | // implementation detail. This header file may change from version to |
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| 23 | // version without notice, or even be removed. |
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| 24 | // |
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| 25 | // We mean it. |
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| 26 | // |
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| 27 | |
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| 28 | QT_BEGIN_NAMESPACE |
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| 29 | |
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| 30 | class QOpcUaReadResult; |
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| 31 | class OpcUaEndpointDiscovery; |
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| 32 | |
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| 33 | class OpcUaConnection : public QObject |
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| 34 | { |
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| 35 | Q_OBJECT |
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| 36 | Q_DISABLE_COPY(OpcUaConnection) |
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| 37 | Q_PROPERTY(QStringList availableBackends READ availableBackends NOTIFY availableBackendsChanged) |
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| 38 | Q_PROPERTY(bool connected READ connected NOTIFY connectedChanged) |
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| 39 | Q_PROPERTY(QString backend READ backend WRITE setBackend NOTIFY backendChanged) |
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| 40 | Q_PROPERTY(bool defaultConnection READ defaultConnection WRITE setDefaultConnection NOTIFY defaultConnectionChanged) |
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| 41 | Q_PROPERTY(QStringList namespaces READ namespaces NOTIFY namespacesChanged) |
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| 42 | Q_PROPERTY(QOpcUaAuthenticationInformation authenticationInformation READ authenticationInformation WRITE setAuthenticationInformation) |
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| 43 | Q_PROPERTY(QStringList supportedSecurityPolicies READ supportedSecurityPolicies CONSTANT) |
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| 44 | Q_PROPERTY(QJSValue supportedUserTokenTypes READ supportedUserTokenTypes CONSTANT) |
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| 45 | Q_PROPERTY(QOpcUaEndpointDescription currentEndpoint READ currentEndpoint) |
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| 46 | Q_PROPERTY(QOpcUaClient* connection READ connection WRITE setConnection NOTIFY connectionChanged) |
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| 47 | QML_NAMED_ELEMENT(Connection) |
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| 48 | QML_ADDED_IN_VERSION(5, 12) |
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| 49 | |
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| 50 | public: |
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| 51 | OpcUaConnection(QObject *parent = nullptr); |
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| 52 | ~OpcUaConnection(); |
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| 53 | QStringList availableBackends() const; |
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| 54 | bool connected() const; |
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| 55 | void setBackend(const QString &name); |
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| 56 | QString backend() const; |
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| 57 | static OpcUaConnection *defaultConnection(); |
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| 58 | bool isDefaultConnection() const; |
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| 59 | QStringList namespaces() const; |
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| 60 | |
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| 61 | QOpcUaEndpointDescription currentEndpoint() const; |
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| 62 | |
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| 63 | QOpcUaAuthenticationInformation authenticationInformation() const; |
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| 64 | Q_INVOKABLE bool readNodeAttributes(const QJSValue &value); |
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| 65 | Q_INVOKABLE bool writeNodeAttributes(const QJSValue &value); |
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| 66 | |
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| 67 | QStringList supportedSecurityPolicies() const; |
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| 68 | QJSValue supportedUserTokenTypes() const; |
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| 69 | |
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| 70 | QOpcUaClient *connection() const; |
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| 71 | |
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| 72 | public slots: |
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| 73 | void connectToEndpoint(const QOpcUaEndpointDescription &endpointDescription); |
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| 74 | void disconnectFromEndpoint(); |
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| 75 | void setDefaultConnection(bool defaultConnection = true); |
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| 76 | void setAuthenticationInformation(const QOpcUaAuthenticationInformation &authenticationInformation); |
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| 77 | void setConnection(QOpcUaClient *client); |
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| 78 | |
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| 79 | signals: |
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| 80 | void availableBackendsChanged(); |
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| 81 | void connectedChanged(); |
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| 82 | void backendChanged(); |
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| 83 | void defaultConnectionChanged(); |
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| 84 | void namespacesChanged(); |
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| 85 | void readNodeAttributesFinished(const QVariant &value); |
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| 86 | void writeNodeAttributesFinished(const QVariant &value); |
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| 87 | void connectionChanged(); |
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| 88 | |
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| 89 | private slots: |
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| 90 | void clientStateHandler(QOpcUaClient::ClientState state); |
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| 91 | void handleReadNodeAttributesFinished(const QList<QOpcUaReadResult> &results); |
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| 92 | void handleWriteNodeAttributesFinished(const QList<QOpcUaWriteResult> &results); |
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| 93 | |
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| 94 | private: |
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| 95 | void removeConnection(); |
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| 96 | void setupConnection(); |
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| 97 | |
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| 98 | QOpcUaClient *m_client = nullptr; |
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| 99 | bool m_connected = false; |
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| 100 | static OpcUaConnection* m_defaultConnection; |
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| 101 | |
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| 102 | friend class OpcUaNode; |
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| 103 | friend class OpcUaValueNode; |
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| 104 | friend class OpcUaMethodNode; |
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| 105 | friend class OpcUaEndpointDiscovery; |
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| 106 | friend class OpcUaServerDiscovery; |
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| 107 | }; |
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| 108 | |
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| 109 | QT_END_NAMESPACE |
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| 110 | |
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| 111 | #endif // QOPCUA_OPCUACONNECTION_P_H |
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| 112 | |
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