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/****************************************************************************
**
** Copyright (C) 2013-2016 Esri <contracts@esri.com>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or 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.GPL2 and 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "georoutejsonparser_esri.h"
#include <QJsonArray>
#include <QGeoRectangle>
#include <QGeoManeuver>
#include <QGeoRouteSegment>
QT_BEGIN_NAMESPACE
// JSON reference: http://resources.arcgis.com/en/help/arcgis-rest-api/#/Route_service_with_synchronous_execution/02r300000036000000/
static const QString kErrorMessage(QStringLiteral("Error %1: %2."));
static const QString kErrorJson(QStringLiteral("Error: invalide JSON document."));
static const QString kErrorKey(QStringLiteral("error"));
static const QString kErrorCodeKey(QStringLiteral("code"));
static const QString kErrorMessageKey(QStringLiteral("message"));
static const QString kErrorDetailsKey(QStringLiteral("details"));
static const QString kDirectionsKey(QStringLiteral("directions"));
static const QString kRoutesKey(QStringLiteral("routes"));
static const QString kBarriersKey(QStringLiteral("barriers"));
static const QString kMessagesKey(QStringLiteral("messages"));
static const QString kDirectionsRouteIdKey(QStringLiteral("routeId"));
static const QString kDirectionsRouteNameKey(QStringLiteral("routeName"));
static const QString kDirectionsSummaryKey(QStringLiteral("summary"));
static const QString kDirectionsTotalLengthKey(QStringLiteral("totalLength"));
static const QString kDirectionsTotalTimeKey(QStringLiteral("totalTime"));
static const QString kDirectionsTotalDriveTimeKey(QStringLiteral("totalDriveTime"));
static const QString kDirectionsEnvelopeKey(QStringLiteral("envelope"));
static const QString kDirectionsEnvelopeXminKey(QStringLiteral("xmin"));
static const QString kDirectionsEnvelopeYminKey(QStringLiteral("ymin"));
static const QString kDirectionsEnvelopeXmaxKey(QStringLiteral("xmax"));
static const QString kDirectionsEnvelopeYmaxKey(QStringLiteral("ymax"));
static const QString kDirectionsFeaturesKey(QStringLiteral("features"));
static const QString kDirectionsFeaturesAttributesKey(QStringLiteral("attributes"));
static const QString kDirectionsFeaturesCompressedGeometryKey(QStringLiteral("compressedGeometry"));
static const QString kDirectionsFeaturesAttributesLengthKey(QStringLiteral("length"));
static const QString kDirectionsFeaturesAttributesTimeKey(QStringLiteral("time"));
static const QString kDirectionsFeaturesAttributesTextKey(QStringLiteral("text"));
static const QString kDirectionsFeaturesAttributesEtaKey(QStringLiteral("ETA"));
static const QString kDirectionsFeaturesAttributesManeuverTypeKey(QStringLiteral("maneuverType"));
static const QString kRoutesFeaturesKey(QStringLiteral("features"));
static const QString kRoutesFeaturesAttributesKey(QStringLiteral("attributes"));
static const QString kRoutesFeaturesObjectIdKey(QStringLiteral("ObjectID"));
static const QString kRoutesFeaturesGeometryKey(QStringLiteral("geometry"));
static const QString kRoutesFeaturesGeometryPathsKey(QStringLiteral("paths"));
GeoRouteJsonParserEsri::GeoRouteJsonParserEsri(const QJsonDocument &document)
{
if (!document.isObject())
{
m_error = kErrorJson;
return;
}
m_json = document.object();
if (m_json.contains(kErrorKey))
{
QJsonObject error = m_json.value(kErrorKey).toObject();
int code = error.value(kErrorCodeKey).toInt();
QString message = error.value(kErrorMessageKey).toString();
m_error = kErrorMessage.arg(code).arg(message);
return;
}
parseDirections();
parseRoutes();
}
QList<QGeoRoute> GeoRouteJsonParserEsri::routes() const
{
return m_routes.values();
}
bool GeoRouteJsonParserEsri::isValid() const
{
return (m_error.isEmpty());
}
QString GeoRouteJsonParserEsri::errorString() const
{
return m_error;
}
void GeoRouteJsonParserEsri::parseDirections()
{
QJsonArray directions = m_json.value(kDirectionsKey).toArray();
foreach (const QJsonValue &direction, directions)
parseDirection(direction.toObject());
}
void GeoRouteJsonParserEsri::parseDirection(const QJsonObject &direction)
{
QGeoRoute &geoRoute = m_routes[direction.value(kDirectionsRouteIdKey).toInt()];
// parse summary
geoRoute.setRouteId(direction.value(kDirectionsRouteNameKey).toString());
QJsonObject summary = direction.value(kDirectionsSummaryKey).toObject();
geoRoute.setDistance(summary.value(kDirectionsTotalLengthKey).toDouble());
geoRoute.setTravelTime(summary.value(kDirectionsTotalTimeKey).toDouble() * 60);
// default units is minutes, see directionsTimeAttributeName param
geoRoute.setTravelMode(QGeoRouteRequest::CarTravel);
// default request is time for car, see directionsTimeAttributeName param
QJsonObject enveloppe = summary.value(kDirectionsEnvelopeKey).toObject();
QGeoCoordinate topLeft(enveloppe.value(kDirectionsEnvelopeXminKey).toDouble(),
enveloppe.value(kDirectionsEnvelopeYmaxKey).toDouble());
QGeoCoordinate bottomRight(enveloppe.value(kDirectionsEnvelopeXmaxKey).toDouble(),
enveloppe.value(kDirectionsEnvelopeYminKey).toDouble());
geoRoute.setBounds(QGeoRectangle(topLeft, bottomRight));
// parse features
QJsonArray features = direction.value(kDirectionsFeaturesKey).toArray();
static const QMap<QString, QGeoManeuver::InstructionDirection> esriDirectionsManeuverTypes
{
{ QStringLiteral("esriDMTUnknown"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTStop"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTStraight"), QGeoManeuver::DirectionForward },
{ QStringLiteral("esriDMTBearLeft"), QGeoManeuver::DirectionBearLeft },
{ QStringLiteral("esriDMTBearRight"), QGeoManeuver::DirectionBearRight },
{ QStringLiteral("esriDMTTurnLeft"), QGeoManeuver::DirectionLeft },
{ QStringLiteral("esriDMTTurnRight"), QGeoManeuver::DirectionRight },
{ QStringLiteral("esriDMTSharpLeft"), QGeoManeuver::DirectionLightLeft },
{ QStringLiteral("esriDMTSharpRight"), QGeoManeuver::DirectionLightRight },
{ QStringLiteral("esriDMTUTurn"), QGeoManeuver::DirectionUTurnRight },
{ QStringLiteral("esriDMTFerry"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTRoundabout"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTHighwayMerge"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTHighwayExit"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTHighwayChange"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTForkCenter"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTForkLeft"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTForkRight"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTDepart"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTTripItem"), QGeoManeuver::NoDirection },
{ QStringLiteral("esriDMTEndOfFerry"), QGeoManeuver::NoDirection }
};
QGeoRouteSegment firstSegment;
for (int i = features.size() - 1; i >= 0; --i)
{
QJsonObject feature = features.at(i).toObject();
QJsonObject attributes = feature.value(kDirectionsFeaturesAttributesKey).toObject();
QGeoRouteSegment segment;
double length = attributes.value(kDirectionsFeaturesAttributesLengthKey).toDouble();
segment.setDistance(length);
double time = attributes.value(kDirectionsFeaturesAttributesTimeKey).toDouble() * 60;
// default units is minutes, see directionsTimeAttributeName param
segment.setTravelTime(time);
QGeoManeuver maneuver;
QString type = attributes.value(kDirectionsFeaturesAttributesManeuverTypeKey).toString();
maneuver.setDirection(esriDirectionsManeuverTypes.value(type));
maneuver.setInstructionText(attributes.value(kDirectionsFeaturesAttributesTextKey).toString() + ".");
maneuver.setDistanceToNextInstruction(length);
maneuver.setTimeToNextInstruction(time);
segment.setManeuver(maneuver);
segment.setNextRouteSegment(firstSegment);
firstSegment = segment;
}
geoRoute.setFirstRouteSegment(firstSegment);
}
void GeoRouteJsonParserEsri::parseRoutes()
{
QJsonObject routes = m_json.value(kRoutesKey).toObject();
QJsonArray features = routes.value(kRoutesFeaturesKey).toArray();
foreach (const QJsonValue &feature, features)
parseRoute(feature.toObject());
}
void GeoRouteJsonParserEsri::parseRoute(const QJsonObject &route)
{
QJsonObject attributes = route.value(kRoutesFeaturesAttributesKey).toObject();
QGeoRoute &geoRoute = m_routes[attributes.value(kRoutesFeaturesObjectIdKey).toInt()];
QJsonObject geometry = route.value(kRoutesFeaturesGeometryKey).toObject();
QJsonArray paths = geometry.value(kRoutesFeaturesGeometryPathsKey).toArray();
if (!paths.isEmpty())
{
QList<QGeoCoordinate> geoCoordinates;
foreach (const QJsonValue &value, paths.first().toArray()) // only first polyline?
{
QJsonArray geoCoordinate = value.toArray();
if (geoCoordinate.size() == 2) // ignore 3rd coordinate
{
geoCoordinates.append(QGeoCoordinate(geoCoordinate[1].toDouble(),
geoCoordinate[0].toDouble()));
}
}
geoRoute.setPath(geoCoordinates);
}
}
QT_END_NAMESPACE
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