/* Copyright (C) 2016 J.F.Dockes
* 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; either version 2 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _OHSERVICE_H_X_INCLUDED_
#define _OHSERVICE_H_X_INCLUDED_
#include <string>
#include <unordered_map>
#include <vector>
#include "libupnpp/device/device.hxx"
#include "upmpdutils.hxx"
#include "upmpd.hxx"
using namespace UPnPP;
// A parent class for all openhome service, to share a bit of state
// variable and event management code.
class OHService : public UPnPProvider::UpnpService {
public:
OHService(const std::string& servtp, const std::string &servid, UpMpd *dev)
: UpnpService(servtp, servid, dev), m_dev(dev) {
}
virtual ~OHService() { }
virtual bool getEventData(bool all, std::vector<std::string>& names,
std::vector<std::string>& values) {
//LOGDEB("OHService::getEventData" << std::endl);
std::unordered_map<std::string, std::string> state, changed;
makestate(state);
if (all) {
changed = state;
} else {
changed = diffmaps(m_state, state);
}
m_state = state;
for (auto& it : changed) {
//LOGDEB("OHService: state change: " << it.first << " -> "
// << it.second << endl);
names.push_back(it.first);
values.push_back(it.second);
}
return true;
}
protected:
virtual bool makestate(std::unordered_map<std::string, std::string> &) = 0;
// State variable storage
std::unordered_map<std::string, std::string> m_state;
UpMpd *m_dev;
};
#endif /* _OHSERVICE_H_X_INCLUDED_ */