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sdrangel/sdrbase/util/grb.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2024 Jon Beniston, M7RCE //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "grb.h"
#include "util/csv.h"
#include <QDebug>
#include <QUrl>
#include <QNetworkReply>
#include <QNetworkDiskCache>
#include <QTextStream>
GRB::GRB()
{
connect(&m_dataTimer, &QTimer::timeout, this,&GRB::getData);
m_networkManager = new QNetworkAccessManager();
connect(m_networkManager, &QNetworkAccessManager::finished, this, &GRB::handleReply);
QStringList locations = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
QDir writeableDir(locations[0]);
if (!writeableDir.mkpath(QStringLiteral("cache") + QDir::separator() + QStringLiteral("grb"))) {
qDebug() << "Failed to create cache/grb";
}
m_cache = new QNetworkDiskCache();
m_cache->setCacheDirectory(locations[0] + QDir::separator() + QStringLiteral("cache") + QDir::separator() + QStringLiteral("grb"));
m_cache->setMaximumCacheSize(100000000);
m_networkManager->setCache(m_cache);
}
GRB::~GRB()
{
disconnect(&m_dataTimer, &QTimer::timeout, this, &GRB::getData);
disconnect(m_networkManager, &QNetworkAccessManager::finished, this, &GRB::handleReply);
delete m_networkManager;
}
GRB* GRB::create()
{
return new GRB();
}
void GRB::getDataPeriodically(int periodInMins)
{
if (periodInMins > 0)
{
m_dataTimer.setInterval(periodInMins*60*1000);
m_dataTimer.start();
getData();
}
else
{
m_dataTimer.stop();
}
}
void GRB::getData()
{
QUrl url("https://user-web.icecube.wisc.edu/~grbweb_public/Summary_table.txt");
m_networkManager->get(QNetworkRequest(url));
}
void GRB::handleReply(QNetworkReply* reply)
{
if (reply)
{
if (!reply->error())
{
if (reply->url().fileName().endsWith(".txt"))
{
QByteArray bytes = reply->readAll();
handleText(bytes);
}
else
{
qDebug() << "GRB::handleReply: Unexpected file" << reply->url().fileName();
}
}
else
{
qDebug() << "GRB::handleReply: Error: " << reply->error();
}
reply->deleteLater();
}
else
{
qDebug() << "GRB::handleReply: Reply is null";
}
}
void GRB::handleText(QByteArray& bytes)
{
// Convert to CSV
QString s(bytes);
QStringList l = s.split("\n");
for (int i = 0; i < l.size(); i++) {
l[i] = l[i].simplified().replace(" ", ",");
}
s = l.join("\n");
QTextStream in(&s);
// Skip header
for (int i = 0; i < 4; i++) {
in.readLine();
}
QList<Data> grbs;
QStringList cols;
while(CSV::readRow(in, &cols))
{
Data grb;
if (cols.length() >= 10)
{
grb.m_name = cols[0];
grb.m_fermiName = cols[1];
int year = grb.m_name.mid(3, 2).toInt();
if (year >= 90) {
year += 1900;
} else {
year += 2000;
}
QDate date(year, grb.m_name.mid(5, 2).toInt(), grb.m_name.mid(7, 2).toInt());
QTime time = QTime::fromString(cols[2]);
grb.m_dateTime = QDateTime(date, time);
grb.m_ra = cols[3].toFloat();
grb.m_dec = cols[4].toFloat();
grb.m_fluence = cols[9].toFloat();
//qDebug() << grb.m_name << grb.m_dateTime.toString() << grb.m_ra << grb.m_dec << grb.m_fluence ;
if (grb.m_dateTime.isValid()) {
grbs.append(grb);
}
}
}
emit dataUpdated(grbs);
}
QString GRB::Data::getFermiURL() const
{
if (m_fermiName.isEmpty() || (m_fermiName == "None")) {
return "";
}
QString base = "https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/bursts/";
QString yearDir = "20" + m_fermiName.mid(3, 2);
QString dataDir = m_fermiName;
dataDir.replace("GRB", "bn");
return base + yearDir + "/" + dataDir + "/current/";
}
QString GRB::Data::getFermiPlotURL() const
{
QString base = getFermiURL();
if (base.isEmpty()) {
return "";
}
QString name = m_fermiName;
name.replace("GRB", "bn");
return getFermiURL() + "glg_lc_all_" + name + "_v00.gif"; // Could be v01.gif? How to know without fetching index?
}
QString GRB::Data::getFermiSkyMapURL() const
{
QString base = getFermiURL();
if (base.isEmpty()) {
return "";
}
QString name = m_fermiName;
name.replace("GRB", "bn");
return getFermiURL() + "glg_skymap_all_" + name + "_v00.png";
}
QString GRB::Data::getSwiftURL() const
{
QString name = m_name;
name.replace("GRB", "");
return "https://swift.gsfc.nasa.gov/archive/grb_table/" + name;
}