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/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
**
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtAnalytics plugin.
**
** $QT_BEGIN_LICENSE:GPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company. For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: GPL-3.0
**
****************************************************************************/
/*!
\page qtanalytics-concepts.html
\title Concepts
\section1 Tracking
What do we want to track?
We want mostly track page views and actions, as also general device
information.
\section1 ConfigUtil
\l ConfigUtil provides utility function to load and parse JSON based
configuration files. The file lookup is based on a given name (e.g.
\c {analytics}) and the lookup looks first for an environment variable
called \c {ANALYTICS_CONFIG}, and if exists will take that path. If not
then a file will be looked in the resource file named \c {:/analytics.json}.
If this also not exists a warning is printed and the configuration is
not successful.
\section1 \l {Context} {Context}
The \l Context object provides the methods available to the builders. It is
reused across all hits. It provides a configuration value access as also network
HTTP GET/POST methods.
In general it should be possible to have a Context interface which could
then be used inside the hit builders and by this making them more
testable.
The configuration is stored into a JSON file (e.g. analytics.json) which
is looked up using the ConfigUtil functions.
\sa {Context}, {IContext}
\section1 \l {HitBuilder} {Hit Builder}
The hit builder is an interface used to collect the various tracking
information and then send the information away using a network.
The hit builder has a common high level API to be shared across specific
builders.
\list
\li send build trackVisit trackEvent
\endlist
\sa {HitBuilder}, {MatomoBuilder}, {GoogleBuilder}
\section1 \l {MatomoBuilder} {Matomo Hit Builder}
\list
\li \l {https://developer.matomo.org/api-reference/tracking-api}
\endlist
The Matomo hit builder is enabled by setting tracker to "matomo" in the
configuration file. The builder support visit and event tracking. It
uses a GET request to the server URL to send the tracking information.
\section1 \l {GoogleBuilder} {Google Analytics Tracking}
\list
\li \l {https://developers.google.com/analytics/devguides/collection/protocol/v1/}
\li \l {https://ga-dev-tools.appspot.com/hit-builder/}
\endlist
The Google hit builder is enabled by setting the tracker to "google". It
uses the Google measurements protocol.
\section1 Configuration Format
The configuration is stored in JSON documents. The document keys change with the chosen \c tracker (e.g. \c matomo, \c google).
\note It is not possible currently to support several trackers.
\section2 Google Configuration
\code
{
"tracker": "google"
"tid": "UA-555555555-5",
"cid": "555",
"deviceResolution": "1280x800",
"domain": "http://example.org",
}
\endcode
\section2 Matomo Configuration
\code
{
"tracker": "matomo",
"server": "http://localhost:8000/piwik.php",
"idsite": "1"
}
\endcode
*/
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