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Diffstat (limited to 'examples/positioning/weatherinfo/openweathermapbackend.cpp')
| -rw-r--r-- | examples/positioning/weatherinfo/openweathermapbackend.cpp | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/examples/positioning/weatherinfo/openweathermapbackend.cpp b/examples/positioning/weatherinfo/openweathermapbackend.cpp deleted file mode 100644 index 0a77579b..00000000 --- a/examples/positioning/weatherinfo/openweathermapbackend.cpp +++ /dev/null @@ -1,265 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2021 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "openweathermapbackend.h" - -#include <QNetworkAccessManager> -#include <QNetworkReply> -#include <QUrlQuery> -#include <QJsonDocument> -#include <QJsonObject> -#include <QJsonValue> -#include <QJsonArray> -#include <QGeoCoordinate> -#include <QLoggingCategory> - -Q_DECLARE_LOGGING_CATEGORY(requestsLog) - -static constexpr auto kZeroKelvin = 273.15; - -static QString niceTemperatureString(double t) -{ - return QString::number(qRound(t - kZeroKelvin)) + QChar(0xB0); -} - -/* - Converts weather code to a string that will be used to show the icon. - The possible strings are based on the icon names. The icon name is built up - as follows: - weather-[mystring].png - where [mystring] is the value returned by this method. - Check resources for the full list of available icons. -*/ -static QString weatherCodeToString(const QString &code) -{ - if (code == u"01d" || code == u"01n") - return "sunny"; - else if (code == u"02d" || code == u"02n") - return "sunny-very-few-clouds"; - else if (code == u"03d" || code == u"03n") - return "few-clouds"; - else if (code == u"04d" || code == u"04n") - return "overcast"; - else if (code == u"09d" || code == u"09n" || code == u"10d" || code == u"10n") - return "showers"; - else if (code == u"11d" || code == u"11n") - return "thundershower"; - else if (code == u"13d" || code == u"13n") - return "snow"; - else if (code == u"50d" || code == u"50n") - return "fog"; - - return "sunny"; // default choice -} - -static void parseWeatherDescription(const QJsonObject &object, WeatherInfo &info) -{ - const QJsonArray weatherArray = object.value(u"weather").toArray(); - if (!weatherArray.isEmpty()) { - const QJsonObject obj = weatherArray.first().toObject(); - info.m_weatherDescription = obj.value(u"description").toString(); - info.m_weatherIconId = weatherCodeToString(obj.value(u"icon").toString()); - } else { - qCDebug(requestsLog, "An empty weather array is returned."); - } -} - -OpenWeatherMapBackend::OpenWeatherMapBackend(QObject *parent) - : ProviderBackend(parent), - m_networkManager(new QNetworkAccessManager(this)), - m_appId(QStringLiteral("36496bad1955bf3365448965a42b9eac")) -{ -} - -void OpenWeatherMapBackend::requestWeatherInfo(const QString &city) -{ - QUrlQuery query; - query.addQueryItem(QStringLiteral("q"), city); - - requestCurrentWeather(query, QGeoCoordinate()); -} - -void OpenWeatherMapBackend::requestWeatherInfo(const QGeoCoordinate &coordinate) -{ - QUrlQuery query; - query.addQueryItem(QStringLiteral("lat"), QString::number(coordinate.latitude())); - query.addQueryItem(QStringLiteral("lon"), QString::number(coordinate.longitude())); - - requestCurrentWeather(query, coordinate); -} - -void OpenWeatherMapBackend::handleCurrentWeatherReply(QNetworkReply *reply, - const QGeoCoordinate &coordinate) -{ - if (!reply) { - emit errorOccurred(); - return; - } - bool parsed = false; - if (!reply->error()) { - // extract info about current weather - const QJsonDocument document = QJsonDocument::fromJson(reply->readAll()); - const QJsonObject documentObject = document.object(); - - LocationInfo currentLocation; - currentLocation.m_name = documentObject.value(u"name").toString(); - if (coordinate.isValid()) - currentLocation.m_coordinate = coordinate; - qCDebug(requestsLog) << "Got current weather for" << currentLocation.m_name; - - WeatherInfo currentWeather; - - parseWeatherDescription(documentObject, currentWeather); - - const QJsonObject mainObject = documentObject.value(u"main").toObject(); - const QJsonValue tempValue = mainObject.value(u"temp"); - if (tempValue.isDouble()) - currentWeather.m_temperature = niceTemperatureString(tempValue.toDouble()); - else - qCDebug(requestsLog, "Failed to parse current temperature."); - - parsed = !currentLocation.m_name.isEmpty() && !currentWeather.m_temperature.isEmpty(); - - if (parsed) { - // request forecast - requestWeatherForecast(currentLocation, currentWeather); - } - } - if (!parsed) { - emit errorOccurred(); - if (reply->error()) - qCDebug(requestsLog) << reply->errorString(); - else - qCDebug(requestsLog, "Failed to parse current weather JSON."); - } - - reply->deleteLater(); -} - -void OpenWeatherMapBackend::handleWeatherForecastReply(QNetworkReply *reply, - const LocationInfo &location, - const WeatherInfo ¤tWeather) -{ - if (!reply) { - emit errorOccurred(); - return; - } - if (!reply->error()) { - QJsonDocument document = QJsonDocument::fromJson(reply->readAll()); - const QJsonObject documentObject = document.object(); - - QList<WeatherInfo> weatherDetails; - // current weather will be the first in the list - weatherDetails << currentWeather; - - QJsonArray daysList = documentObject.value(u"list").toArray(); - // include current day as well - for (qsizetype i = 0; i < daysList.size(); ++i) { - QJsonObject dayObject = daysList.at(i).toObject(); - WeatherInfo info; - - const QDateTime dt = QDateTime::fromSecsSinceEpoch(dayObject.value(u"dt").toInteger()); - info.m_dayOfWeek = dt.toString(u"ddd"); - - const QJsonObject tempObject = dayObject.value(u"temp").toObject(); - - const QJsonValue minTemp = tempObject.value(u"min"); - const QJsonValue maxTemp = tempObject.value(u"max"); - if (minTemp.isDouble() && maxTemp.isDouble()) { - info.m_temperature = niceTemperatureString(minTemp.toDouble()) + QChar('/') - + niceTemperatureString(maxTemp.toDouble()); - } else { - qCDebug(requestsLog, "Failed to parse min or max temperature."); - } - - parseWeatherDescription(dayObject, info); - - if (!info.m_temperature.isEmpty() && !info.m_weatherIconId.isEmpty()) - weatherDetails.push_back(info); - } - - emit weatherInformation(location, weatherDetails); - } else { - emit errorOccurred(); - qCDebug(requestsLog) << reply->errorString(); - } - - reply->deleteLater(); -} - -void OpenWeatherMapBackend::requestCurrentWeather(QUrlQuery &query, - const QGeoCoordinate &coordinate) -{ - QUrl url("http://api.openweathermap.org/data/2.5/weather"); - query.addQueryItem(QStringLiteral("mode"), QStringLiteral("json")); - query.addQueryItem(QStringLiteral("APPID"), m_appId); - url.setQuery(query); - - QNetworkReply *reply = m_networkManager->get(QNetworkRequest(url)); - connect(reply, &QNetworkReply::finished, this, - [this, reply, coordinate]() { handleCurrentWeatherReply(reply, coordinate); }); -} - -void OpenWeatherMapBackend::requestWeatherForecast(const LocationInfo &location, - const WeatherInfo ¤tWeather) -{ - QUrl url("http://api.openweathermap.org/data/2.5/forecast/daily"); - QUrlQuery query; - query.addQueryItem(QStringLiteral("q"), location.m_name); - query.addQueryItem(QStringLiteral("mode"), QStringLiteral("json")); - query.addQueryItem(QStringLiteral("cnt"), QStringLiteral("4")); - query.addQueryItem(QStringLiteral("APPID"), m_appId); - url.setQuery(query); - - QNetworkReply *reply = m_networkManager->get(QNetworkRequest(url)); - connect(reply, &QNetworkReply::finished, this, [this, reply, location, currentWeather]() { - handleWeatherForecastReply(reply, location, currentWeather); - }); -} |