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/*
* Copyright (C) 2007 John Tapsell <tapsell@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License version 2 as
* published by the Free Software Foundation
*
* 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 for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "systemmonitor.h"
#include <QTimer>
#include <QProcess>
#include <QDebug>
#include <KLocalizedString>
#include <Plasma/DataContainer>
#include <ksgrd/SensorManager.h>
SystemMonitorEngine::SystemMonitorEngine(QObject* parent, const QVariantList& args)
: Plasma::DataEngine(parent, args)
{
KSGRD::SensorMgr = new KSGRD::SensorManager(this);
KSGRD::SensorMgr->engage(QStringLiteral("localhost"), QLatin1String(""), QStringLiteral("ksysguardd"));
m_waitingFor= 0;
connect(KSGRD::SensorMgr, &KSGRD::SensorManager::update, this, &SystemMonitorEngine::updateMonitorsList);
updateMonitorsList();
}
SystemMonitorEngine::~SystemMonitorEngine()
{
}
void SystemMonitorEngine::updateMonitorsList()
{
KSGRD::SensorMgr->sendRequest(QStringLiteral("localhost"), QStringLiteral("monitors"), (KSGRD::SensorClient*)this, -1);
}
QStringList SystemMonitorEngine::sources() const
{
return m_sensors;
}
bool SystemMonitorEngine::sourceRequestEvent(const QString &name)
{
// NB: do not follow this example in your own data engines!
// This is kept for backwards compatilibility.
// Visualizations should instead listen to sourceAdded()
if (m_sensors.isEmpty()) {
// we don't have our first data yet, so let's trust the requester, at least fo rnow
// when we get our list of sensors later, then we'll know for sure and remove
// this source if they were wrong
setData(name, DataEngine::Data());
return true;
}
return false;
}
bool SystemMonitorEngine::updateSourceEvent(const QString &sensorName)
{
const int index = m_sensors.indexOf(sensorName);
if (index != -1) {
KSGRD::SensorMgr->sendRequest(QStringLiteral("localhost"), sensorName, (KSGRD::SensorClient*)this, index);
KSGRD::SensorMgr->sendRequest(QStringLiteral("localhost"), QStringLiteral("%1?").arg(sensorName), (KSGRD::SensorClient*)this, -(index + 2));
}
return false;
}
void SystemMonitorEngine::updateSensors()
{
DataEngine::SourceDict sources = containerDict();
DataEngine::SourceDict::iterator it = sources.begin();
m_waitingFor = 0;
while (it != sources.end()) {
m_waitingFor++;
QString sensorName = it.key();
KSGRD::SensorMgr->sendRequest( QStringLiteral("localhost"), sensorName, (KSGRD::SensorClient*)this, -1);
++it;
}
}
void SystemMonitorEngine::answerReceived(int id, const QList<QByteArray> &answer)
{
if (id < -1) {
if (answer.isEmpty() || m_sensors.count() <= (-id - 2)) {
qDebug() << "sensor info answer was empty, (" << answer.isEmpty() << ") or sensors does not exist to us ("
<< (m_sensors.count() < (-id - 2)) << ") for index" << (-id - 2);
return;
}
DataEngine::SourceDict sources = containerDict();
DataEngine::SourceDict::const_iterator it = sources.constFind(m_sensors.value(-id - 2));
const QStringList newSensorInfo = QString::fromUtf8(answer[0]).split('\t');
if (newSensorInfo.count() < 4) {
qDebug() << "bad sensor info, only" << newSensorInfo.count()
<< "entries, and we were expecting 4. Answer was " << answer;
if(it != sources.constEnd())
qDebug() << "value =" << it.value()->data()[QStringLiteral("value")] << "type=" << it.value()->data()[QStringLiteral("type")];
return;
}
const QString sensorName = newSensorInfo[0];
const QString min = newSensorInfo[1];
const QString max = newSensorInfo[2];
const QString unit = newSensorInfo[3];
if (it != sources.constEnd()) {
it.value()->setData(QStringLiteral("name"), sensorName);
it.value()->setData(QStringLiteral("min"), min);
it.value()->setData(QStringLiteral("max"), max);
it.value()->setData(QStringLiteral("units"), unit);
}
return;
}
if (id == -1) {
QSet<QString> sensors;
m_sensors.clear();
int count = 0;
foreach (const QByteArray &sens, answer) {
const QStringList newSensorInfo = QString::fromUtf8(sens).split('\t');
if (newSensorInfo.count() < 2) {
continue;
}
if(newSensorInfo.at(1) == QLatin1String("logfile"))
continue; // logfile data type not currently supported
const QString newSensor = newSensorInfo[0];
sensors.insert(newSensor);
m_sensors.append(newSensor);
{
// HACK: for backwards compability
// in case this source was created in sourceRequestEvent, stop it being
// automagically removed when disconnected from
Plasma::DataContainer *s = containerForSource( newSensor );
if ( s ) {
disconnect( s, &Plasma::DataContainer::becameUnused, this, &SystemMonitorEngine::removeSource );
}
}
DataEngine::Data d;
d.insert(QStringLiteral("value"), QVariant());
d.insert(QStringLiteral("type"), newSensorInfo[1]);
setData(newSensor, d);
KSGRD::SensorMgr->sendRequest( QStringLiteral("localhost"), QStringLiteral("%1?").arg(newSensor), (KSGRD::SensorClient*)this, -(count + 2));
++count;
}
QHash<QString, Plasma::DataContainer*> sourceDict = containerDict();
QHashIterator<QString, Plasma::DataContainer*> it(sourceDict);
while (it.hasNext()) {
it.next();
if (!sensors.contains(it.key())) {
removeSource(it.key());
}
}
return;
}
m_waitingFor--;
QString reply;
if (!answer.isEmpty()) {
reply = QString::fromUtf8(answer[0]);
}
DataEngine::SourceDict sources = containerDict();
DataEngine::SourceDict::const_iterator it = sources.constFind(m_sensors.value(id));
if (it != sources.constEnd()) {
it.value()->setData(QStringLiteral("value"), reply);
}
}
void SystemMonitorEngine::sensorLost( int )
{
m_waitingFor--;
}
K_EXPORT_PLASMA_DATAENGINE_WITH_JSON(systemmonitor, SystemMonitorEngine, "plasma-dataengine-systemmonitor.json")
#include "systemmonitor.moc"
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