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wmbusmeters/src/meters.cc

2867 wiersze
84 KiB
C++
Czysty Wina Historia

/*
Copyright (C) 2017-2022 Fredrik Öhrström (gpl-3.0-or-later)
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 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 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"bus.h"
#include"config.h"
#include"meters.h"
#include"meters_common_implementation.h"
#include"units.h"
#include"wmbus.h"
#include"wmbus_utils.h"
#include<algorithm>
#include<cmath>
#include<limits>
#include<memory.h>
#include<numeric>
#include<stdexcept>
#include<time.h>
map<string, DriverInfo> *registered_drivers_ = NULL;
vector<DriverInfo*> *registered_drivers_list_ = NULL;
void verifyDriverLookupCreated()
{
if (registered_drivers_ == NULL)
{
registered_drivers_ = new map<string,DriverInfo>;
}
if (registered_drivers_list_ == NULL)
{
registered_drivers_list_ = new vector<DriverInfo*>;
}
}
DriverInfo *lookupDriver(string name)
{
verifyDriverLookupCreated();
if (registered_drivers_->count(name) == 1)
{
return &(*registered_drivers_)[name];
}
for (DriverInfo *di : *registered_drivers_list_)
{
for (DriverName &dn : di->nameAliases())
{
if (dn.str() == name)
{
return di;
}
}
}
return NULL;
}
vector<DriverInfo*> &allDrivers()
{
return *registered_drivers_list_;
}
void addRegisteredDriver(DriverInfo di)
{
verifyDriverLookupCreated();
if (registered_drivers_->count(di.name().str()) != 0)
{
error("Two drivers trying to register the name \"%s\"\n", di.name().str().c_str());
exit(1);
}
(*registered_drivers_)[di.name().str()] = di;
// The list elements points into the map.
(*registered_drivers_list_).push_back(lookupDriver(di.name().str()));
}
bool DriverInfo::detect(uint16_t mfct, uchar type, uchar version)
{
for (auto &dd : detect_)
{
if (dd.mfct == 0 && dd.type == 0 && dd.version == 0) continue; // Ignore drivers with no detection.
if (dd.mfct == mfct && dd.type == type && dd.version == version) return true;
}
return false;
}
bool DriverInfo::isValidMedia(uchar type)
{
for (auto &dd : detect_)
{
if (dd.type == type) return true;
}
return false;
}
bool DriverInfo::isCloseEnoughMedia(uchar type)
{
for (auto &dd : detect_)
{
if (isCloseEnough(dd.type, type)) return true;
}
return false;
}
bool registerDriver(function<void(DriverInfo&)> setup)
{
DriverInfo di;
setup(di);
// Check that the driver name has not been registered before!
assert(lookupDriver(di.name().str()) == NULL);
// Check that no other driver also triggers on the same detection values.
for (auto &d : di.detect())
{
for (DriverInfo *p : allDrivers())
{
bool foo = p->detect(d.mfct, d.type, d.version);
if (foo)
{
error("Internal error: driver %s tried to register the same auto detect combo as driver %s alread has taken!\n",
di.name().str().c_str(), p->name().str().c_str());
}
}
}
// Everything looks, good install this driver.
addRegisteredDriver(di);
// This code is invoked from the static initializers of DriverInfos when starting
// wmbusmeters. Thus we do not yet know if the user has supplied --debug or similar setting.
// To debug this you have to uncomment the printf below.
// fprintf(stderr, "(STATIC) added driver: %s\n", n.c_str());
return true;
}
bool lookupDriverInfo(const string& driver, DriverInfo *out_di)
{
DriverInfo *di = lookupDriver(driver);
if (di == NULL)
{
return false;
}
if (out_di != NULL)
{
*out_di = *di;
}
return true;
}
/*
MeterCommonImplementation::MeterCommonImplementation(MeterInfo &mi,
string driver) :
driver_name_(driver),
bus_(mi.bus),
name_(mi.name),
waiting_for_poll_response_sem_("waiting_for_poll_response")
{
ids_ = mi.ids;
idsc_ = toIdsCommaSeparated(ids_);
link_modes_ = mi.link_modes;
if (mi.key.length() > 0)
{
hex2bin(mi.key, &meter_keys_.confidentiality_key);
}
for (auto s : mi.shells)
{
addShell(s);
}
for (auto j : mi.extra_constant_fields)
{
addExtraConstantField(j);
}
}
*/
MeterCommonImplementation::MeterCommonImplementation(MeterInfo &mi,
DriverInfo &di) :
type_(di.type()),
driver_name_(di.name()),
bus_(mi.bus),
name_(mi.name),
mfct_tpl_status_bits_(di.mfctTPLStatusBits()),
has_process_content_(di.hasProcessContent()),
waiting_for_poll_response_sem_("waiting_for_poll_response")
{
ids_ = mi.ids;
idsc_ = toIdsCommaSeparated(ids_);
link_modes_ = mi.link_modes;
poll_interval_= mi.poll_interval;
if (mi.key.length() > 0)
{
hex2bin(mi.key, &meter_keys_.confidentiality_key);
}
for (auto s : mi.shells)
{
addShell(s);
}
for (auto j : mi.extra_constant_fields)
{
addExtraConstantField(j);
}
link_modes_.unionLinkModeSet(di.linkModes());
force_mfct_index_ = di.forceMfctIndex();
}
void MeterCommonImplementation::addShell(string cmdline)
{
shell_cmdlines_.push_back(cmdline);
}
void MeterCommonImplementation::addExtraConstantField(string ecf)
{
extra_constant_fields_.push_back(ecf);
}
void MeterCommonImplementation::addExtraCalculatedField(string ecf)
{
verbose("(meter) Adding calculated field: %s\n", ecf.c_str());
vector<string> parts = splitString(ecf, '=');
if (parts.size() != 2)
{
warning("Invalid formula for calculated field. %s\n", ecf.c_str());
return;
}
string vname;
Unit unit;
bool ok = extractUnit(parts[0], &vname, &unit);
if (!ok)
{
warning("Could not extract a valid unit from calculated field name %s\n", parts[0].c_str());
return;
}
Quantity quantity = toQuantity(unit);
FieldInfo *existing = findFieldInfo(vname, quantity);
if (existing != NULL)
{
if (!canConvert(unit, existing->displayUnit()))
{
warning("Warning! Cannot add the calculated field: %s since it would conflict with the already declared field %s for quantity %s.\n",
parts[0].c_str(), vname.c_str(), toString(quantity));
return;
}
}
addNumericFieldWithCalculator(
vname,
"Calculated: "+ecf,
DEFAULT_PRINT_PROPERTIES,
quantity,
parts[1],
unit
);
}
vector<string> &MeterCommonImplementation::shellCmdlines()
{
return shell_cmdlines_;
}
vector<string> &MeterCommonImplementation::meterExtraConstantFields()
{
return extra_constant_fields_;
}
DriverName MeterCommonImplementation::driverName()
{
return driver_name_;
}
void MeterCommonImplementation::setMeterType(MeterType mt)
{
type_ = mt;
}
void MeterCommonImplementation::addLinkMode(LinkMode lm)
{
link_modes_.addLinkMode(lm);
}
void MeterCommonImplementation::setMfctTPLStatusBits(Translate::Lookup &lookup)
{
mfct_tpl_status_bits_ = lookup;
}
void MeterCommonImplementation::addNumericFieldWithExtractor(string vname,
string help,
PrintProperties print_properties,
Quantity vquantity,
VifScaling vif_scaling,
FieldMatcher matcher,
Unit display_unit)
{
field_infos_.emplace_back(
FieldInfo(field_infos_.size(),
vname,
vquantity,
display_unit == Unit::Unknown ? defaultUnitForQuantity(vquantity) : display_unit,
vif_scaling,
matcher,
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
NoLookup, /* Lookup table */
NULL /* Formula */
));
}
void MeterCommonImplementation::addNumericFieldWithCalculator(string vname,
string help,
PrintProperties print_properties,
Quantity vquantity,
string formula,
Unit display_unit)
{
Formula *f = newFormula();
bool ok = f->parse(this, formula);
if (!ok)
{
string err = f->errors();
warning("Warning! Ignoring calculated field %s because parse failed:\n%s",
vname.c_str(),
err.c_str());
delete f;
return;
}
assert(ok);
field_infos_.push_back(
FieldInfo(field_infos_.size(),
vname,
vquantity,
display_unit == Unit::Unknown ? defaultUnitForQuantity(vquantity) : display_unit,
VifScaling::Auto,
FieldMatcher::noMatcher(),
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
NoLookup, /* Lookup table */
f /* Formula */
));
}
void MeterCommonImplementation::addNumericFieldWithCalculatorAndMatcher(string vname,
string help,
PrintProperties print_properties,
Quantity vquantity,
string formula,
FieldMatcher matcher,
Unit display_unit)
{
Formula *f = newFormula();
bool ok = f->parse(this, formula);
if (!ok)
{
string err = f->errors();
warning("Warning! Ignoring calculated field %s because parse failed:\n%s",
vname.c_str(),
err.c_str());
delete f;
return;
}
assert(ok);
field_infos_.push_back(
FieldInfo(field_infos_.size(),
vname,
vquantity,
display_unit == Unit::Unknown ? defaultUnitForQuantity(vquantity) : display_unit,
VifScaling::Auto,
matcher,
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
NoLookup, /* Lookup table */
f /* Formula */
));
}
void MeterCommonImplementation::addNumericField(
string vname,
Quantity vquantity,
PrintProperties print_properties,
string help,
Unit display_unit)
{
field_infos_.emplace_back(
FieldInfo(field_infos_.size(),
vname,
vquantity,
display_unit == Unit::Unknown ? defaultUnitForQuantity(vquantity) : display_unit,
VifScaling::None,
FieldMatcher::noMatcher(),
help,
print_properties,
NULL, // getValueFunc,
NULL,
NULL, // setValueFunc
NULL,
NoLookup, /* Lookup table */
NULL /* Formula */
));
}
void MeterCommonImplementation::addStringFieldWithExtractor(string vname,
string help,
PrintProperties print_properties,
FieldMatcher matcher)
{
field_infos_.emplace_back(
FieldInfo(field_infos_.size(),
vname,
Quantity::Text,
defaultUnitForQuantity(Quantity::Text),
VifScaling::None,
matcher,
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
NoLookup, /* Lookup table */
NULL /* Formula */
));
}
void MeterCommonImplementation::addStringFieldWithExtractorAndLookup(string vname,
string help,
PrintProperties print_properties,
FieldMatcher matcher,
Translate::Lookup lookup)
{
field_infos_.emplace_back(
FieldInfo(field_infos_.size(),
vname,
Quantity::Text,
defaultUnitForQuantity(Quantity::Text),
VifScaling::None,
matcher,
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
lookup,
NULL /* Formula */
));
}
void MeterCommonImplementation::addStringField(string vname,
string help,
PrintProperties print_properties)
{
field_infos_.emplace_back(
FieldInfo(field_infos_.size(),
vname,
Quantity::Text,
defaultUnitForQuantity(Quantity::Text),
VifScaling::None,
FieldMatcher(),
help,
print_properties,
NULL,
NULL,
NULL,
NULL,
NoLookup, /* Lookup table */
NULL /* Formula */
));
}
void MeterCommonImplementation::poll(shared_ptr<BusManager> bus_manager)
{
if (usesPolling())
{
// An valid poll interval must have been set!
if (pollInterval() <= 0) return;
time_t now = time(NULL);
time_t next_poll_time = datetime_of_poll_+pollInterval();
if (now < next_poll_time)
{
// Not yet time to poll this meter.
return;
}
BusDevice *bus_device = bus_manager->findBus(bus());
if (!bus_device)
{
warning("(meter) warning! no bus specified for meter %s %s\n", name().c_str(), idsc().c_str());
return;
}
string id = ids().back();
if (id.length() != 2 && id.length() != 3 && id.length() != 8)
{
debug("(meter) not polling from bad id \"%s\" with wrong length\n", id.c_str());
return;
}
if (id.length() == 2 || id.length() == 3)
{
vector<uchar> idhex;
int idnum = atoi(id.c_str());
if (idnum < 0 || idnum > 250 || idhex.size() != 1)
{
debug("(meter) not polling from bad id \"%s\"\n", id.c_str());
return;
}
vector<uchar> buf;
buf.resize(5);
buf[0] = 0x10; // Start
buf[1] = 0x5b; // REQ_UD2
buf[2] = idhex[0];
uchar cs = 0;
for (int i=1; i<3; ++i) cs += buf[i];
buf[3] = cs; // checksum
buf[4] = 0x16; // Stop
verbose("(meter) polling %s %s (primary) with req ud2 on bus %s\n",
name().c_str(),
id.c_str(),
bus_device->busAlias().c_str(),id.c_str());
bus_device->serial()->send(buf);
}
if (id.length() == 8)
{
// A full secondary address 12345678 was specified.
vector<uchar> idhex;
bool ok = hex2bin(id, &idhex);
if (!ok || idhex.size() != 4)
{
debug("(meter) not polling from bad id \"%s\"\n", id.c_str());
return;
}
vector<uchar> buf;
buf.resize(17);
buf[0] = 0x68;
buf[1] = 0x0b;
buf[2] = 0x0b;
buf[3] = 0x68;
buf[4] = 0x73; // SND_UD
buf[5] = 0xfd; // address 253
buf[6] = 0x52; // ci 52
// Assuming we send id 12345678
buf[7] = idhex[3]; // id 78
buf[8] = idhex[2]; // id 56
buf[9] = idhex[1]; // id 34
buf[10] = idhex[0]; // id 12
// Use wildcards instead of exact matching here.
// TODO add selection based on these values as well.
buf[11] = 0xff; // mfct
buf[12] = 0xff; // mfct
buf[13] = 0xff; // version/generation
buf[14] = 0xff; // type/media/device
uchar cs = 0;
for (int i=4; i<15; ++i) cs += buf[i];
buf[15] = cs; // checksum
buf[16] = 0x16; // Stop
debug("(meter) secondary addressing bus %s to address %s\n", bus_device->busAlias().c_str(), id.c_str());
bus_device->serial()->send(buf);
usleep(1000*500);
buf.resize(5);
buf[0] = 0x10; // Start
buf[1] = 0x5b; // REQ_UD2
buf[2] = 0xfd; // 00 or address 253 previously setup
cs = 0;
for (int i=1; i<3; ++i) cs += buf[i];
buf[3] = cs; // checksum
buf[4] = 0x16; // Stop
verbose("(meter) polling %s %s (secondary) with req ud2 bus %s\n",
name().c_str(),
id.c_str(),
bus_device->busAlias().c_str());
bus_device->serial()->send(buf);
}
bool ok = waiting_for_poll_response_sem_.wait();
if (!ok)
{
warning("(meter) %s %s did not send a response!\n", name().c_str(), idsc().c_str());
}
}
}
vector<string>& MeterCommonImplementation::ids()
{
return ids_;
}
string MeterCommonImplementation::idsc()
{
return idsc_;
}
vector<FieldInfo> &MeterCommonImplementation::fieldInfos()
{
return field_infos_;
}
vector<string> &MeterCommonImplementation::extraConstantFields()
{
return extra_constant_fields_;
}
string MeterCommonImplementation::name()
{
return name_;
}
void MeterCommonImplementation::onUpdate(function<void(Telegram*,Meter*)> cb)
{
on_update_.push_back(cb);
}
int MeterCommonImplementation::numUpdates()
{
return num_updates_;
}
string MeterCommonImplementation::datetimeOfUpdateHumanReadable()
{
char datetime[40];
memset(datetime, 0, sizeof(datetime));
strftime(datetime, 20, "%Y-%m-%d %H:%M.%S", localtime(&datetime_of_update_));
return string(datetime);
}
string MeterCommonImplementation::datetimeOfUpdateRobot()
{
char datetime[40];
memset(datetime, 0, sizeof(datetime));
// This is the date time in the Greenwich timezone (Zulu time), dont get surprised!
time_t d = datetime_of_update_;
struct tm ts;
gmtime_r(&d, &ts);
strftime(datetime, sizeof(datetime), "%FT%TZ", &ts);
return string(datetime);
}
string MeterCommonImplementation::unixTimestampOfUpdate()
{
char ut[40];
memset(ut, 0, sizeof(ut));
snprintf(ut, sizeof(ut)-1, "%lu", datetime_of_update_);
return string(ut);
}
time_t MeterCommonImplementation::timestampLastUpdate()
{
return datetime_of_update_;
}
void MeterCommonImplementation::setPollInterval(time_t interval)
{
poll_interval_ = interval;
if (usesPolling() && poll_interval_ == 0)
{
warning("(meter) %s %s needs polling but has no pollinterval set!\n", name().c_str(), idsc().c_str());
}
}
time_t MeterCommonImplementation::pollInterval()
{
return poll_interval_;
}
bool MeterCommonImplementation::usesPolling()
{
return link_modes_.has(LinkMode::MBUS) ||
link_modes_.has(LinkMode::C2) ||
link_modes_.has(LinkMode::T2) ||
link_modes_.has(LinkMode::S2);
}
bool driverNeedsPolling(DriverName& dn)
{
DriverInfo *di = lookupDriver(dn.str());
if (di == NULL) return false;
// Return true for MBUS,S2,C2,T2 meters. Currently only mbus is implemented.
return di->linkModes().has(LinkMode::MBUS) ||
di->linkModes().has(LinkMode::C2) ||
di->linkModes().has(LinkMode::T2) ||
di->linkModes().has(LinkMode::S2);
}
const char *toString(MeterType type)
{
#define X(tname) if (type == MeterType::tname) return #tname;
LIST_OF_METER_TYPES
#undef X
return "unknown";
}
string toString(DriverInfo &di)
{
return di.name().str();
}
bool MeterCommonImplementation::isTelegramForMeter(Telegram *t, Meter *meter, MeterInfo *mi)
{
string name;
vector<string> ids;
string idsc;
string driver_name;
assert((meter && !mi) ||
(!meter && mi));
if (meter)
{
name = meter->name();
ids = meter->ids();
idsc = meter->idsc();
driver_name = meter->driverName().str();
}
else
{
name = mi->name;
ids = mi->ids;
idsc = mi->idsc;
driver_name = mi->driver_name.str();
}
debug("(meter) %s: for me? %s in %s\n", name.c_str(), t->idsc.c_str(), idsc.c_str());
bool used_wildcard = false;
bool id_match = doesIdsMatchExpressions(t->ids, ids, &used_wildcard);
if (!id_match) {
// The id must match.
debug("(meter) %s: not for me: not my id\n", name.c_str());
return false;
}
bool valid_driver = isMeterDriverValid(driver_name, t->dll_mfct, t->dll_type, t->dll_version);
if (!valid_driver && t->tpl_id_found)
{
valid_driver = isMeterDriverValid(driver_name, t->tpl_mfct, t->tpl_type, t->tpl_version);
}
if (!valid_driver)
{
// Are we using the right driver? Perhaps not since
// this particular driver, mfct, media, version combo
// is not registered in the METER_DETECTION list in meters.h
/*
if (used_wildcard)
{
// The match for the id was not exact, thus the user is listening using a wildcard
// to many meters and some received matched meter telegrams are not from the right meter type,
// ie their driver does not match. Lets just ignore telegrams that probably cannot be decoded properly.
verbose("(meter) ignoring telegram from %s since it matched a wildcard id rule but driver (%s) does not match.\n",
t->idsc.c_str(), driver_name.c_str());
return false;
}*/
// The match was exact, ie the user has actually specified 12345678 and foo as driver even
// though they do not match. Lets warn and then proceed. It is common that a user tries a
// new version of a meter with the old driver, thus it might not be a real error.
if (isVerboseEnabled() || isDebugEnabled() || !warned_for_telegram_before(t, t->dll_a))
{
string possible_drivers = t->autoDetectPossibleDrivers();
if (t->beingAnalyzed() == false && driver_name != "auto")
{
warning("(meter) %s: meter detection did not match the selected driver %s! correct driver is: %s\n"
"(meter) Not printing this warning again for id: %02x%02x%02x%02x mfct: (%s) %s (0x%02x) type: %s (0x%02x) ver: 0x%02x\n",
name.c_str(),
driver_name.c_str(),
possible_drivers.c_str(),
t->dll_id_b[3], t->dll_id_b[2], t->dll_id_b[1], t->dll_id_b[0],
manufacturerFlag(t->dll_mfct).c_str(),
manufacturer(t->dll_mfct).c_str(),
t->dll_mfct,
mediaType(t->dll_type, t->dll_mfct).c_str(), t->dll_type,
t->dll_version);
if (possible_drivers == "unknown!")
{
warning("(meter) please consider opening an issue at https://github.com/wmbusmeters/wmbusmeters/\n");
warning("(meter) to add support for this unknown mfct,media,version combination\n");
}
}
}
}
debug("(meter) %s: yes for me\n", name.c_str());
return true;
}
MeterKeys *MeterCommonImplementation::meterKeys()
{
return &meter_keys_;
}
int MeterCommonImplementation::index()
{
return index_;
}
void MeterCommonImplementation::setIndex(int i)
{
index_ = i;
}
string MeterCommonImplementation::bus()
{
return bus_;
}
void MeterCommonImplementation::triggerUpdate(Telegram *t)
{
// Check if processContent has discarded this telegram.
if (t->discard) return;
datetime_of_poll_ = time(NULL);
datetime_of_update_ = t->about.timestamp ? t->about.timestamp : datetime_of_poll_;
num_updates_++;
for (auto &cb : on_update_) if (cb) cb(t, this);
t->handled = true;
}
string findField(string key, vector<string> *extra_constant_fields)
{
key = key+"=";
for (string ecf : *extra_constant_fields)
{
if (startsWith(ecf, key))
{
return ecf.substr(key.length());
}
}
return "";
}
// Is the desired field one of the fields common to all meters and telegrams?
bool checkCommonField(string *buf, string desired_field, Meter *m, Telegram *t, char c, bool human_readable)
{
if (desired_field == "name")
{
*buf += m->name() + c;
return true;
}
if (desired_field == "id")
{
*buf += t->ids.back() + c;
return true;
}
if (desired_field == "timestamp")
{
*buf += m->datetimeOfUpdateHumanReadable() + c;
return true;
}
if (desired_field == "timestamp_lt")
{
*buf += m->datetimeOfUpdateHumanReadable() + c;
return true;
}
if (desired_field == "timestamp_utc")
{
*buf += m->datetimeOfUpdateRobot() + c;
return true;
}
if (desired_field == "timestamp_ut")
{
*buf += m->unixTimestampOfUpdate() + c;
return true;
}
if (desired_field == "device")
{
*buf += t->about.device + c;
return true;
}
if (desired_field == "rssi_dbm")
{
*buf += to_string(t->about.rssi_dbm) + c;
return true;
}
return false;
}
// Is the desired field one of the meter printable fields?
bool checkPrintableField(string *buf, string desired_field, Meter *m, Telegram *t, char c,
vector<FieldInfo> &fields, bool human_readable)
{
for (FieldInfo &fi : fields)
{
if (fi.xuantity() == Quantity::Text)
{
// Strings are simply just print them.
if (desired_field == fi.vname())
{
*buf += m->getStringValue(&fi) + c;
return true;
}
}
else
{
string display_unit_s = unitToStringLowerCase(fi.displayUnit());
string var = fi.vname()+"_"+display_unit_s;
if (desired_field != var) continue;
// We have the correc field.
if (fi.displayUnit() == Unit::DateLT)
{
double d = m->getNumericValue(&fi, Unit::DateLT);
*buf += strdate(d);
*buf += c;
return true;
}
else if (fi.displayUnit() == Unit::DateTimeLT)
{
double d = m->getNumericValue(&fi, Unit::DateTimeLT);
*buf += strdatetime(d);
*buf += c;
return true;
}
else if (fi.displayUnit() == Unit::DateTimeUTC)
{
double d = m->getNumericValue(&fi, Unit::DateTimeUTC);
*buf += strTimestampUTC(d);
*buf += c;
return true;
}
else
{
// Default unit.
*buf += valueToString(m->getNumericValue(&fi, fi.displayUnit()), fi.displayUnit());
if (human_readable)
{
*buf += " ";
*buf += unitToStringHR(fi.displayUnit());
}
*buf += c;
return true;
}
}
}
return false;
}
// Is the desired field one of the constant fields?
bool checkConstantField(string *buf, string field, char c, vector<string> *extra_constant_fields)
{
// Ok, lets look for extra constant fields and print any such static information.
string v = findField(field, extra_constant_fields);
if (v != "")
{
*buf += v + c;
return true;
}
return false;
}
string concatFields(Meter *m, Telegram *t, char c, vector<FieldInfo> &prints, bool human_readable,
vector<string> *selected_fields, vector<string> *extra_constant_fields)
{
if (selected_fields == NULL || selected_fields->size() == 0)
{
selected_fields = &m->selectedFields();
}
string buf = "";
for (string field : *selected_fields)
{
bool handled = checkCommonField(&buf, field, m, t, c, human_readable);
if (handled) continue;
handled = checkPrintableField(&buf, field, m, t, c, prints, human_readable);
if (handled) continue;
handled = checkConstantField(&buf, field, c, extra_constant_fields);
if (handled) continue;
if (!handled)
{
buf += "?"+field+"?"+c;
}
}
if (buf.back() == c) buf.pop_back();
return buf;
}
bool MeterCommonImplementation::handleTelegram(AboutTelegram &about, vector<uchar> input_frame,
bool simulated, string *ids, bool *id_match, Telegram *out_analyzed)
{
Telegram t;
t.about = about;
bool ok = t.parseHeader(input_frame);
if (simulated) t.markAsSimulated();
if (out_analyzed != NULL) t.markAsBeingAnalyzed();
*ids = t.idsc;
if (!ok || !isTelegramForMeter(&t, this, NULL))
{
// This telegram is not intended for this meter.
return false;
}
*id_match = true;
verbose("(meter) %s(%d) %s handling telegram from %s\n", name().c_str(), index(), driverName().str().c_str(), t.ids.back().c_str());
if (isDebugEnabled())
{
string msg = bin2hex(input_frame);
debug("(meter) %s %s \"%s\"\n", name().c_str(), t.ids.back().c_str(), msg.c_str());
}
// For older meters with manufacturer specific data without a nice 0f dif marker.
if (force_mfct_index_ != -1)
{
t.force_mfct_index = force_mfct_index_;
}
ok = t.parse(input_frame, &meter_keys_, true);
if (!ok)
{
if (out_analyzed != NULL) *out_analyzed = t;
// Ignoring telegram since it could not be parsed.
return false;
}
char log_prefix[256];
snprintf(log_prefix, 255, "(%s) log", driverName().str().c_str());
logTelegram(t.original, t.frame, t.header_size, t.suffix_size);
if (usesPolling())
{
waiting_for_poll_response_sem_.notify();
}
// Invoke standardized field extractors!
processFieldExtractors(&t);
if (hasProcessContent())
{
// Invoke tailor made meter specific parsing!
processContent(&t);
}
// Invoke any calculators working on the extracted fields.
processFieldCalculators();
// All done....
if (isDebugEnabled())
{
char log_prefix[256];
snprintf(log_prefix, 255, "(%s)", driverName().str().c_str());
t.explainParse(log_prefix, 0);
}
triggerUpdate(&t);
if (out_analyzed != NULL) *out_analyzed = t;
return true;
}
void MeterCommonImplementation::processFieldExtractors(Telegram *t)
{
// Multiple dventries can be matched against a single wildcard FieldInfo.
map<FieldInfo*,set<DVEntry*>> founds;
// Sort the dv_entries based on their offset in the telegram.
// I.e. restore the ordering that was implicit in the telegram.
vector<DVEntry*> sorted_entries;
for (auto &p : t->dv_entries)
{
sorted_entries.push_back(&p.second.second);
}
sort(sorted_entries.begin(), sorted_entries.end(),
[](const DVEntry* a, const DVEntry *b) -> bool { return a->offset < b->offset; });
// Now go through each field_info defined by the driver.
for (FieldInfo &fi : field_infos_)
{
int current_match_nr = 0;
if (!fi.hasMatcher())
{
// This field_info has not been matched to a dv_entry before!
debug("(meters) skipping field without matcher %s(%s)[%d]...\n",
fi.vname().c_str(),
toString(fi.xuantity()),
fi.index());
continue;
}
debug("(meters) trying field info %s(%s)[%d]...\n",
fi.vname().c_str(),
toString(fi.xuantity()),
fi.index());
// Iterate through dv_entries in the telegram in the same order the telegram presented them.
for (DVEntry *dve : sorted_entries)
{
if (fi.hasMatcher() && fi.matches(dve))
{
current_match_nr++;
if (fi.matcher().index_nr != IndexNr(current_match_nr) &&
!fi.matcher().expectedToMatchAgainstMultipleEntries())
{
// This field info did match, but requires another index nr!
// Increment the current index nr and look for the next match.
}
else if (founds[&fi].count(dve) == 0 || fi.matcher().expectedToMatchAgainstMultipleEntries())
{
debug("(meters) using field info %s(%s)[%d] to extract %s at offset %d\n",
fi.vname().c_str(),
toString(fi.xuantity()),
fi.index(),
dve->dif_vif_key.str().c_str(),
dve->offset);
dve->addFieldInfo(&fi);
fi.performExtraction(this, t, dve);
founds[&fi].insert(dve);
}
else
{
if (isVerboseEnabled())
{
set<DVEntry*> old = founds[&fi];
string olds;
for (DVEntry *dve : old)
{
olds += to_string(dve->offset)+",";
}
olds.pop_back();
verbose("(meter) while processing field extractors ignoring dventry %s at offset %d matching since "
"field %s was already matched against offsets %s !\n",
dve->dif_vif_key.str().c_str(),
dve->offset,
fi.vname().c_str(),
olds.c_str());
}
}
}
}
}
// Iterate over the fields that has no matcher rule. Ie the field
// itself does the searching and matching.
for (FieldInfo &fi : field_infos_)
{
if (!fi.hasMatcher())
{
fi.performExtraction(this, t, NULL);
}
else if (founds.count(&fi) == 0 && fi.printProperties().hasINCLUDETPLSTATUS())
{
// This is a status field and it joins the tpl status but it also
// has a potential dve match, which did not trigger. Now
// force extraction to get the tpl status.
fi.performExtraction(this, t, NULL);
}
}
}
void MeterCommonImplementation::processFieldCalculators()
{
// Iterate over the fields with formulas but no matcher.
for (FieldInfo &fi : field_infos_)
{
if (fi.hasFormula() && !fi.hasMatcher())
{
debug("(meters) calculating field %s(%s)[%d]\n",
fi.vname().c_str(),
toString(fi.xuantity()),
fi.index());
fi.performCalculation(this);
}
}
}
void MeterCommonImplementation::processContent(Telegram *t)
{
}
bool MeterCommonImplementation::hasProcessContent()
{
return has_process_content_;
}
void MeterCommonImplementation::setNumericValue(FieldInfo *fi, DVEntry *dve, Unit u, double v)
{
if (fi->hasSetNumericValueOverride())
{
// Use setter function to store value somewhere.
fi->setNumericValueOverride(u, v);
return;
}
// Store value in default meter location for numeric values.
string field_name_no_unit;
if (dve == NULL)
{
field_name_no_unit = fi->vname();
}
else
{
field_name_no_unit = fi->generateFieldNameNoUnit(dve);
}
numeric_values_[pair<string,Quantity>(field_name_no_unit, fi->xuantity())] = NumericField(u, v, fi);
}
void MeterCommonImplementation::setNumericValue(string vname, Unit u, double v)
{
Quantity q = toQuantity(u);
FieldInfo *fi = findFieldInfo(vname, q);
if (fi == NULL)
{
warning("(meter) cannot set numeric value %g %s for non-existant field \"%s\" %s\n", v, unitToStringLowerCase(u).c_str(), vname.c_str(), toString(q));
return;
}
setNumericValue(fi, NULL, u, v);
}
bool MeterCommonImplementation::hasValue(FieldInfo *fi)
{
return hasStringValue(fi) || hasNumericValue(fi);
}
bool MeterCommonImplementation::hasNumericValue(FieldInfo *fi)
{
if (fi->hasGetNumericValueOverride()) return true;
pair<string,Quantity> key(fi->vname(),fi->xuantity());
return numeric_values_.count(key) != 0;
}
bool MeterCommonImplementation::hasStringValue(FieldInfo *fi)
{
if (fi->hasGetStringValueOverride()) return true;
return string_values_.count(fi->vname()) != 0;
}
double MeterCommonImplementation::getNumericValue(FieldInfo *fi, Unit to)
{
if (fi->hasGetNumericValueOverride())
{
return fi->getNumericValueOverride(to);
}
string field_name_no_unit = fi->vname();
pair<string,Quantity> key(field_name_no_unit,fi->xuantity());
if (numeric_values_.count(key) == 0)
{
return std::numeric_limits<double>::quiet_NaN(); // This is translated into a null in the json.
}
NumericField &nf = numeric_values_[key];
return convert(nf.value, nf.unit, to);
}
double MeterCommonImplementation::getNumericValue(string vname, Unit to)
{
Quantity q = toQuantity(to);
FieldInfo *fi = findFieldInfo(vname, q);
if (fi != NULL && fi->hasGetNumericValueOverride())
{
return fi->getNumericValueOverride(to);
}
pair<string,Quantity> key(vname,q);
if (numeric_values_.count(key) == 0)
{
return std::numeric_limits<double>::quiet_NaN(); // This is translated into a null in the json.
}
NumericField &nf = numeric_values_[key];
return convert(nf.value, nf.unit, to);
}
void MeterCommonImplementation::setStringValue(FieldInfo *fi, string v)
{
if (fi->hasSetStringValueOverride())
{
fi->setStringValueOverride(v);
return;
}
string field_name_no_unit = fi->vname();
string_values_[field_name_no_unit] = StringField(v, fi);
}
void MeterCommonImplementation::setStringValue(string vname, string v)
{
FieldInfo *fi = findFieldInfo(vname, Quantity::Text);
if (fi == NULL)
{
warning("(meter) cannot set string value %s for non-existant field \"%s\"\n", v.c_str(), vname.c_str());
return;
}
setStringValue(fi, v);
}
string MeterCommonImplementation::getStringValue(FieldInfo *fi)
{
if (fi->hasGetStringValueOverride())
{
// There is a custom getter for this field. Use this instead.
return fi->getStringValueOverride();
}
// Fetch the string value from the default string storage in the meter.
string field_name_no_unit = fi->vname();
if (string_values_.count(field_name_no_unit) == 0)
{
return "null"; // This is translated to a real(non-string) null in the json.
}
StringField &sf = string_values_[field_name_no_unit];
string value = sf.value;
if (fi->printProperties().hasSTATUS())
{
// This is >THE< status field, only one is allowed.
// Look for other fields with the JOIN_INTO_STATUS marker.
// These other fields will not be printed, instead
// joined into this status field.
for (FieldInfo &f : field_infos_)
{
if (f.printProperties().hasINJECTINTOSTATUS())
{
string more = getStringValue(&f);
string joined = joinStatusOKStrings(value, more);
value = joined;
}
}
// Sort all found flags and remove any duplicates. A well designed meter decoder
// should not be able to generate duplicates.
value = sortStatusString(value);
// If it is empty, then translate to OK!
if (value == "") value = "OK";
}
return value;
}
string MeterCommonImplementation::decodeTPLStatusByte(uchar sts)
{
return ::decodeTPLStatusByteWithMfct(sts, mfct_tpl_status_bits_);
}
FieldInfo *MeterCommonImplementation::findFieldInfo(string vname, Quantity xuantity)
{
FieldInfo *found = NULL;
for (FieldInfo &p : field_infos_)
{
if (p.vname() == vname &&
p.xuantity() == xuantity)
{
found = &p;
break;
}
}
return found;
}
string MeterCommonImplementation::renderJsonOnlyDefaultUnit(string vname, Quantity xuantity)
{
FieldInfo *fi = findFieldInfo(vname, xuantity);
if (fi == NULL) return "unknown field "+vname;
return fi->renderJsonOnlyDefaultUnit(this);
}
string MeterCommonImplementation::debugValues()
{
string s;
for (auto &p : numeric_values_)
{
string vname = p.first.first;
Quantity q = p.first.second;
NumericField& nf = p.second;
s += tostrprintf("%s %s = %g\n", toString(q), vname.c_str(), nf.value);
}
for (auto &p : string_values_)
{
string vname = p.first;
StringField& nf = p.second;
s += tostrprintf("%s = \"%s\"\n", vname.c_str(), nf.value.c_str());
}
return s;
}
FieldInfo::~FieldInfo()
{
}
FieldInfo::FieldInfo(int index,
string vname,
Quantity xuantity,
Unit display_unit,
VifScaling vif_scaling,
FieldMatcher matcher,
string help,
PrintProperties print_properties,
function<double(Unit)> get_numeric_value_override,
function<string()> get_string_value_override,
function<void(Unit,double)> set_numeric_value_override,
function<void(string)> set_string_value_override,
Translate::Lookup lookup,
Formula *formula
) :
index_(index),
vname_(vname),
xuantity_(xuantity),
display_unit_(display_unit),
vif_scaling_(vif_scaling),
matcher_(matcher),
help_(help),
print_properties_(print_properties),
get_numeric_value_override_(get_numeric_value_override),
get_string_value_override_(get_string_value_override),
set_numeric_value_override_(set_numeric_value_override),
set_string_value_override_(set_string_value_override),
lookup_(lookup),
formula_(formula),
field_name_(newStringInterpolator()),
valid_field_name_(field_name_->parse(vname))
{
if (!valid_field_name_)
{
warning("(meter) field template \"%s\" could not be parsed!\n", vname.c_str());
}
}
string FieldInfo::renderJsonOnlyDefaultUnit(Meter *m)
{
return renderJson(m, NULL);
}
string FieldInfo::renderJsonText(Meter *m)
{
return renderJson(m, NULL);
}
string FieldInfo::generateFieldNameNoUnit(DVEntry *dve)
{
if (!valid_field_name_) return "bad_field_name";
return field_name_->apply(dve);
}
string FieldInfo::generateFieldNameWithUnit(DVEntry *dve)
{
if (!valid_field_name_) return "bad_field_name";
if (xuantity_ == Quantity::Text)
{
return field_name_->apply(dve);
}
string display_unit_s = unitToStringLowerCase(displayUnit());
string var = field_name_->apply(dve);
return var+"_"+display_unit_s;
}
string FieldInfo::renderJson(Meter *m, DVEntry *dve)
{
string s;
string display_unit_s = unitToStringLowerCase(displayUnit());
string field_name = generateFieldNameNoUnit(dve);
if (xuantity() == Quantity::Text)
{
string v = m->getStringValue(this);
if (v == "null")
{
// Yes, right now a meter cannot send a string value "something":"null" it will
// be translated into "something":null in the json, indicating that there is no value.
// This should not be a problem for now. Lets deal with it when a meter decides to send "null"
// as its version string for example.
s += "\""+field_name+"\":null";
}
else
{
// Normally the string values are quoted in json. TODO quote the value properly.
// A well crafted meter could send a version string with " and break the json format.
s += "\""+field_name+"\":\""+v+"\"";
}
}
else
{
if (displayUnit() == Unit::DateLT)
{
s += "\""+field_name+"_"+display_unit_s+"\":\""+strdate(m->getNumericValue(field_name, Unit::DateLT))+"\"";
}
else if (displayUnit() == Unit::DateTimeLT)
{
s += "\""+field_name+"_"+display_unit_s+"\":\""+strdatetime(m->getNumericValue(field_name, Unit::DateTimeLT))+"\"";
}
else if (displayUnit() == Unit::DateTimeUTC)
{
s += "\""+field_name+"_"+display_unit_s+"\":\""+strTimestampUTC(m->getNumericValue(field_name, Unit::DateTimeUTC))+"\"";
}
else
{
// All numeric values.
s += "\""+field_name+"_"+display_unit_s+"\":"+valueToString(m->getNumericValue(field_name, displayUnit()), displayUnit());
}
}
return s;
}
void MeterCommonImplementation::printMeter(Telegram *t,
string *human_readable,
string *fields, char separator,
string *json,
vector<string> *envs,
vector<string> *extra_constant_fields,
vector<string> *selected_fields,
bool pretty_print_json)
{
*human_readable = concatFields(this, t, '\t', field_infos_, true, selected_fields, extra_constant_fields);
*fields = concatFields(this, t, separator, field_infos_, false, selected_fields, extra_constant_fields);
string media;
if (t->tpl_id_found)
{
media = mediaTypeJSON(t->tpl_type, t->tpl_mfct);
}
else if (t->ell_id_found)
{
media = mediaTypeJSON(t->ell_type, t->ell_mfct);
}
else
{
media = mediaTypeJSON(t->dll_type, t->dll_mfct);
}
string indent = "";
string newline = "";
if (pretty_print_json)
{
indent = " ";
newline ="\n";
}
string s;
s += "{"+newline;
s += indent+"\"media\":\""+media+"\","+newline;
s += indent+"\"meter\":\""+driverName().str()+"\","+newline;
s += indent+"\"name\":\""+name()+"\","+newline;
if (t->ids.size() > 0)
{
s += indent+"\"id\":\""+t->ids.back()+"\","+newline;
}
else
{
s += indent+"\"id\":\"\","+newline;
}
// Iterate over the meter field infos...
map<FieldInfo*,set<DVEntry*>> founds; // Multiple dventries can match to a single field info.
set<string> found_vnames;
for (FieldInfo& fi : field_infos_)
{
if (fi.printProperties().hasHIDE()) continue;
// The field should be printed in the json. (Most usually should.)
for (auto& i : t->dv_entries)
{
// Check each telegram dv entry.
DVEntry *dve = &i.second.second;
// Has the entry been matches to this field, then print it as json.
if (dve->hasFieldInfo(&fi))
{
assert(founds[&fi].count(dve) == 0);
founds[&fi].insert(dve);
string field_name = fi.generateFieldNameNoUnit(dve);
found_vnames.insert(field_name);
}
}
}
for (FieldInfo& fi : field_infos_)
{
if (fi.printProperties().hasHIDE()) continue;
if (founds.count(&fi) != 0)
{
// This field info has matched against some dventries.
for (DVEntry *dve : founds[&fi])
{
debug("(meters) render field %s(%s %s)[%d] with dventry @%d key %s data %s\n",
fi.vname().c_str(), toString(fi.xuantity()), unitToStringLowerCase(fi.displayUnit()).c_str(), fi.index(),
dve->offset,
dve->dif_vif_key.str().c_str(),
dve->value.c_str());
string out = fi.renderJson(this, dve);
debug("(meters) %s\n", out.c_str());
s += indent+out+","+newline;
}
}
else
{
// Ok, no value found in received telegram.
// Print field anyway if it is required,
// or if a value has been received before and this field has not been received using a different rule.
// Why this complicated rule?
// E.g. the minmoess mbus seems to use storage 1 for target_m3 but the wmbus version uses storage 8.
// I.e. we have two rules that store into target_m3, this check will prevent target_m3 from being printed twice.
if (fi.printProperties().hasREQUIRED() ||
(hasValue(&fi) && (
found_vnames.count(fi.vname()) == 0 ||
fi.hasFormula()))) // TODO! Fix so a new field total_l does not overwrite total_m3 in mem.
{
// No telegram entries found, but this field should be printed anyway.
// It will be printed with any value received from a previous telegram.
// Or if no value has been received, null.
debug("(meters) render field %s(%s)[%d] without dventry\n",
fi.vname().c_str(), toString(fi.xuantity()), fi.index());
string out = fi.renderJson(this, NULL);
debug("(meters) %s\n", out.c_str());
s += indent+out+","+newline;
}
}
}
s += indent+"\"timestamp\":\""+datetimeOfUpdateRobot()+"\"";
if (t->about.device != "")
{
s += ","+newline;
s += indent+"\"device\":\""+t->about.device+"\","+newline;
s += indent+"\"rssi_dbm\":"+to_string(t->about.rssi_dbm);
}
for (string extra_field : meterExtraConstantFields())
{
s += ","+newline;
s += indent+makeQuotedJson(extra_field);
}
for (string extra_field : *extra_constant_fields)
{
s += ","+newline;
s += indent+makeQuotedJson(extra_field);
}
s += newline;
s += "}";
*json = s;
envs->push_back(string("METER_JSON=")+*json);
if (t->ids.size() > 0)
{
envs->push_back(string("METER_ID=")+t->ids.back());
}
else
{
envs->push_back(string("METER_ID="));
}
envs->push_back(string("METER_NAME=")+name());
envs->push_back(string("METER_MEDIA=")+media);
envs->push_back(string("METER_TYPE=")+driverName().str());
envs->push_back(string("METER_TIMESTAMP=")+datetimeOfUpdateRobot());
envs->push_back(string("METER_TIMESTAMP_UTC=")+datetimeOfUpdateRobot());
envs->push_back(string("METER_TIMESTAMP_UT=")+unixTimestampOfUpdate());
envs->push_back(string("METER_TIMESTAMP_LT=")+datetimeOfUpdateHumanReadable());
if (t->about.device != "")
{
envs->push_back(string("METER_DEVICE=")+t->about.device);
envs->push_back(string("METER_RSSI_DBM=")+to_string(t->about.rssi_dbm));
}
for (FieldInfo& fi : field_infos_)
{
if (fi.printProperties().hasHIDE()) continue;
string display_unit_s = unitToStringUpperCase(fi.displayUnit());
string var = fi.vname();
std::transform(var.begin(), var.end(), var.begin(), ::toupper);
if (fi.xuantity() == Quantity::Text)
{
string envvar = "METER_"+var+"="+getStringValue(&fi);
envs->push_back(envvar);
}
else
{
string envvar = "METER_"+var+"_"+display_unit_s+"="+valueToString(getNumericValue(&fi, fi.displayUnit()), fi.displayUnit());
envs->push_back(envvar);
}
}
// If the configuration has supplied json_address=Roodroad 123
// then the env variable METER_address will available and have the content "Roodroad 123"
for (string add_json : meterExtraConstantFields())
{
envs->push_back(string("METER_")+add_json);
}
for (string extra_field : *extra_constant_fields)
{
envs->push_back(string("METER_")+extra_field);
}
}
void MeterCommonImplementation::setExpectedTPLSecurityMode(TPLSecurityMode tsm)
{
expected_tpl_sec_mode_ = tsm;
}
void MeterCommonImplementation::setExpectedELLSecurityMode(ELLSecurityMode dsm)
{
expected_ell_sec_mode_ = dsm;
}
TPLSecurityMode MeterCommonImplementation::expectedTPLSecurityMode()
{
return expected_tpl_sec_mode_;
}
ELLSecurityMode MeterCommonImplementation::expectedELLSecurityMode()
{
return expected_ell_sec_mode_;
}
void detectMeterDrivers(int manufacturer, int media, int version, vector<string> *drivers)
{
for (DriverInfo *p : allDrivers())
{
if (p->detect(manufacturer, media, version))
{
drivers->push_back(p->name().str());
}
}
}
bool isMeterDriverValid(DriverName driver_name, int manufacturer, int media, int version)
{
for (DriverInfo *p : allDrivers())
{
if (p->detect(manufacturer, media, version))
{
if (p->hasDriverName(driver_name)) return true;
}
}
return false;
}
bool isMeterDriverReasonableForMedia(string driver_name, int media)
{
if (media == 0x37) return false; // Skip converter meter side since they do not give any useful information.
for (DriverInfo *p : allDrivers())
{
if (p->name().str() == driver_name && p->isValidMedia(media))
{
return true;
}
}
return false;
}
DriverInfo driver_unknown_;
DriverInfo pickMeterDriver(Telegram *t)
{
int manufacturer = t->dll_mfct;
int media = t->dll_type;
int version = t->dll_version;
if (t->tpl_id_found)
{
manufacturer = t->tpl_mfct;
media = t->tpl_type;
version = t->tpl_version;
}
for (DriverInfo *p : allDrivers())
{
if (p->detect(manufacturer, media, version))
{
return *p;
}
}
return driver_unknown_;
}
shared_ptr<Meter> createMeter(MeterInfo *mi)
{
shared_ptr<Meter> newm;
const char *keymsg = (mi->key[0] == 0) ? "not-encrypted" : "encrypted";
DriverInfo *di = lookupDriver(mi->driver_name.str());
if (di != NULL)
{
shared_ptr<Meter> newm = di->construct(*mi);
for (string &j : mi->extra_calculated_fields)
{
newm->addExtraCalculatedField(j);
}
newm->setPollInterval(mi->poll_interval);
if (mi->selected_fields.size() > 0)
{
newm->setSelectedFields(mi->selected_fields);
}
else
{
newm->setSelectedFields(di->defaultFields());
}
verbose("(meter) created %s %s %s %s\n",
mi->name.c_str(),
di->name().str().c_str(),
mi->idsc.c_str(),
keymsg);
return newm;
}
return newm;
}
bool is_driver_and_extras(const string& t, DriverName *out_driver_name, string *out_extras)
{
// piigth(jump=foo)
// multical21
DriverInfo di;
size_t ps = t.find('(');
size_t pe = t.find(')');
size_t te = 0; // Position after type end.
bool found_parentheses = (ps != string::npos && pe != string::npos);
if (!found_parentheses)
{
if (lookupDriverInfo(t, &di))
{
*out_driver_name = di.name();
// We found a registered driver.
*out_extras = "";
return true;
}
*out_extras = "";
return true;
}
// Parentheses must be last.
if (! (ps > 0 && ps < pe && pe == t.length()-1)) return false;
te = ps;
string type = t.substr(0, te);
bool found = lookupDriverInfo(type, &di);
if (found)
{
*out_driver_name = di.name();
}
string extras = t.substr(ps+1, pe-ps-1);
*out_extras = extras;
return true;
}
string MeterInfo::str()
{
string r;
r += driver_name.str();
if (extras != "")
{
r += "("+extras+")";
}
r += ":";
if (bus != "") r += bus+":";
if (bps != 0) r += bps+":";
if (!link_modes.empty()) r += link_modes.hr()+":";
if (r.size() > 0) r.pop_back();
return r;
}
bool MeterInfo::parse(string n, string d, string i, string k)
{
clear();
name = n;
ids = splitMatchExpressions(i);
key = k;
bool driverextras_checked = false;
bool bus_checked = false;
bool bps_checked = false;
bool link_modes_checked = false;
// The : colon is forbidden inside the parts.
vector<string> parts = splitString(d, ':');
// Example piigth:MAIN:2400 // it is an mbus meter.
// c5isf:MAIN:2400:mbus // attached to mbus instead of t1
// multical21:c1
// telco:BUS2:c2
// driver ( extras ) : bus_alias : bps : linkmodes
for (auto& p : parts)
{
if (!driverextras_checked && is_driver_and_extras(p, &driver_name, &extras))
{
driverextras_checked = true;
}
else if (!bus_checked && isValidAlias(p) && !isValidBps(p) && !isValidLinkModes(p))
{
driverextras_checked = true;
bus_checked = true;
bus = p;
}
else if (!bps_checked && isValidBps(p) && !isValidLinkModes(p))
{
driverextras_checked = true;
bus_checked = true;
bps_checked = true;
bps = atoi(p.c_str());
}
else if (!link_modes_checked && isValidLinkModes(p))
{
driverextras_checked = true;
bus_checked = true;
bps_checked = true;
link_modes_checked = true;
link_modes = parseLinkModes(p);
}
else
{
// Unknown part....
return false;
}
}
if (!link_modes_checked)
{
// No explicit link mode set, set to the default link modes
// that the meter can transmit on.
// link_modes = toMeterLinkModeSet(driver);
}
return true;
}
bool MeterInfo::usesPolling()
{
return link_modes.has(LinkMode::MBUS) ||
link_modes.has(LinkMode::C2) ||
link_modes.has(LinkMode::T2) ||
link_modes.has(LinkMode::S2);
}
bool isValidKey(const string& key, MeterInfo &mi)
{
if (key.length() == 0) return true;
if (key == "NOKEY") {
return true;
}
if (mi.driver_name.str() == "izar" ||
mi.driver_name.str() == "hydrus")
{
// These meters can either be OMS compatible 128 bit key (32 hex).
// Or using an older proprietary encryption with 64 bit keys (16 hex)
if (key.length() != 16 && key.length() != 32) return false;
}
else
{
// OMS compliant meters have 128 bit AES keys (32 hex).
// There is a deprecated DES mode, but I have not yet
// seen any telegram using that mode.
if (key.length() != 32) return false;
}
vector<uchar> tmp;
return hex2bin(key, &tmp);
}
void FieldInfo::performExtraction(Meter *m, Telegram *t, DVEntry *dve)
{
if (xuantity_ == Quantity::Text)
{
// Extract a string.
extractString(m, t, dve);
}
else if (hasFormula())
{
double value = formula_->calculate(displayUnit(), dve, m);
m->setNumericValue(this, dve, displayUnit(), value);
}
else
{
// Extract a numeric.
extractNumeric(m, t, dve);
}
}
void FieldInfo::performCalculation(Meter *m)
{
assert(hasFormula());
double value = formula_->calculate(displayUnit());
m->setNumericValue(this, NULL, displayUnit(), value);
}
bool FieldInfo::hasMatcher()
{
return matcher_.active == true;
}
bool FieldInfo::hasFormula()
{
return formula_ != NULL;
}
bool FieldInfo::matches(DVEntry *dve)
{
return matcher_.matches(*dve);
}
string FieldInfo::str()
{
return tostrprintf("%d %s_%s (%s) %s [%s] \"%s\"",
index_,
vname_.c_str(),
unitToStringLowerCase(display_unit_).c_str(),
toString(xuantity_),
toString(vif_scaling_),
matcher_.str().c_str(),
help_.c_str());
}
DriverName MeterInfo::driverName()
{
return driver_name;
}
bool FieldInfo::extractNumeric(Meter *m, Telegram *t, DVEntry *dve)
{
bool found = false;
string key = matcher_.dif_vif_key.str();
if (dve == NULL)
{
if (key == "")
{
// Search for key.
bool ok = findKeyWithNr(matcher_.measurement_type,
matcher_.vif_range,
matcher_.storage_nr_from.intValue(),
matcher_.tariff_nr_from.intValue(),
matcher_.index_nr.intValue(),
&key,
&t->dv_entries);
// No entry was found.
if (!ok) return false;
}
// No entry with this key was found.
if (t->dv_entries.count(key) == 0) return false;
dve = &t->dv_entries[key].second;
}
assert(dve != NULL);
assert(key == "" || dve->dif_vif_key.str() == key);
string field_name;
if (isDebugEnabled())
{
field_name = generateFieldNameWithUnit(dve);
}
double extracted_double_value = NAN;
if (dve->extractDouble(&extracted_double_value,
vifScaling() == VifScaling::Auto ||
vifScaling() == VifScaling::AutoSigned,
vifScaling() == VifScaling::NoneSigned ||
vifScaling() == VifScaling::AutoSigned))
{
Unit decoded_unit = displayUnit();
if (matcher_.vif_range == VIFRange::DateTime)
{
struct tm datetime;
dve->extractDate(&datetime);
time_t tmp = mktime(&datetime);
string bbb = strdatetime(tmp);
extracted_double_value = tmp;
}
else if (matcher_.vif_range == VIFRange::Date)
{
struct tm date;
dve->extractDate(&date);
time_t tmp = mktime(&date);
extracted_double_value = tmp;
}
else if (matcher_.vif_range == VIFRange::AnyEnergyVIF ||
matcher_.vif_range == VIFRange::AnyVolumeVIF ||
matcher_.vif_range == VIFRange::AnyPowerVIF)
{
// Find the actual unit used in the telegram.
decoded_unit = toDefaultUnit(dve->vif);
}
else if (matcher_.vif_range != VIFRange::Any &&
matcher_.vif_range != VIFRange::None)
{
// Pick the default unit for this range.
decoded_unit = toDefaultUnit(matcher_.vif_range);
}
debug("(meter) %s %s decoded %s default %s value %g\n",
toString(matcher_.vif_range),
field_name.c_str(),
unitToStringLowerCase(decoded_unit).c_str(),
unitToStringLowerCase(display_unit_).c_str(),
extracted_double_value);
m->setNumericValue(this, dve, display_unit_, convert(extracted_double_value, decoded_unit, display_unit_));
t->addMoreExplanation(dve->offset, renderJson(m, dve));
found = true;
}
return found;
}
static string add_tpl_status(string existing_status, Meter *m, Telegram *t)
{
string status = m->decodeTPLStatusByte(t->tpl_sts);
t->addMoreExplanation(t->tpl_sts_offset, "(%s)", status.c_str());
if (status != "OK")
{
if (existing_status != "OK")
{
// Join the statuses.
if (existing_status != "")
{
existing_status += " ";
}
existing_status += status;
}
else
{
// Overwrite OK.
existing_status = status;
}
}
else
{
// No change to the existing_status
}
return existing_status;
}
bool FieldInfo::extractString(Meter *m, Telegram *t, DVEntry *dve)
{
bool found = false;
string key = matcher_.dif_vif_key.str();
if (dve == NULL)
{
if (key == "")
{
if (!hasMatcher())
{
// There is no matcher, only use case is to capture JOIN_TPL_STATUS.
if (print_properties_.hasINCLUDETPLSTATUS())
{
string status = add_tpl_status("OK", m, t);
m->setStringValue(this, status);
return true;
}
}
else
{
// Search for key.
bool ok = findKeyWithNr(matcher_.measurement_type,
matcher_.vif_range,
matcher_.storage_nr_from.intValue(),
matcher_.tariff_nr_from.intValue(),
matcher_.index_nr.intValue(),
&key,
&t->dv_entries);
// No entry was found.
if (!ok) {
// Nothing found, however check if capturing JOIN_TPL_STATUS.
if (print_properties_.hasINCLUDETPLSTATUS())
{
string status = add_tpl_status("OK", m, t);
m->setStringValue(this, status);
return true;
}
return false;
}
}
}
// No entry with this key was found.
if (t->dv_entries.count(key) == 0)
{
// Nothing found, however check if capturing JOIN_TPL_STATUS.
if (print_properties_.hasINCLUDETPLSTATUS())
{
string status = add_tpl_status("OK", m, t);
m->setStringValue(this, status);
return true;
}
return false;
}
dve = &t->dv_entries[key].second;
}
assert(dve != NULL);
assert(key == "" || dve->dif_vif_key.str() == key);
// Generate the json field name:
string field_name = generateFieldNameNoUnit(dve);
uint64_t extracted_bits {};
if (lookup_.hasLookups() || (print_properties_.hasINCLUDETPLSTATUS()))
{
string translated_bits = "";
// The field has lookups, or the print property JOIN_TPL_STATUS is set,
// this means that we should create a string.
if (lookup_.hasLookups() && dve->extractLong(&extracted_bits))
{
translated_bits = lookup().translate(extracted_bits);
found = true;
}
if (print_properties_.hasINCLUDETPLSTATUS())
{
translated_bits = add_tpl_status(translated_bits, m, t);
}
if (found)
{
m->setStringValue(this, translated_bits);
t->addMoreExplanation(dve->offset, renderJsonText(m));
}
}
else if (matcher_.vif_range == VIFRange::DateTime)
{
struct tm datetime;
dve->extractDate(&datetime);
string extracted_device_date_time;
if (dve->value.size() == 12)
{
// A long date time sec + timezone field. TODO add timezone data.
extracted_device_date_time = strdatetimesec(&datetime);
}
else
{
extracted_device_date_time = strdatetime(&datetime);
}
m->setStringValue(this, extracted_device_date_time);
t->addMoreExplanation(dve->offset, renderJsonText(m));
found = true;
}
else if (matcher_.vif_range == VIFRange::Date)
{
struct tm date;
dve->extractDate(&date);
string extracted_device_date = strdate(&date);
m->setStringValue(this, extracted_device_date);
t->addMoreExplanation(dve->offset, renderJsonText(m));
found = true;
}
else if (matcher_.vif_range == VIFRange::Any ||
matcher_.vif_range == VIFRange::EnhancedIdentification ||
matcher_.vif_range == VIFRange::FabricationNo ||
matcher_.vif_range == VIFRange::HardwareVersion ||
matcher_.vif_range == VIFRange::FirmwareVersion ||
matcher_.vif_range == VIFRange::ModelVersion ||
matcher_.vif_range == VIFRange::SoftwareVersion ||
matcher_.vif_range == VIFRange::Customer ||
matcher_.vif_range == VIFRange::Location ||
matcher_.vif_range == VIFRange::SpecialSupplierInformation ||
matcher_.vif_range == VIFRange::ParameterSet)
{
string extracted_id;
dve->extractReadableString(&extracted_id);
m->setStringValue(this, extracted_id);
t->addMoreExplanation(dve->offset, renderJsonText(m));
found = true;
}
else
{
error("Internal error: Cannot extract text string from vif %s in %s:%d\n",
toString(matcher_.vif_range),
__FILE__, __LINE__);
}
return found;
}
bool Address::parse(string &s)
{
// Example: 12345678
// or 12345678.M=PII.T=1B.V=01
// or 1234*
// or 1234*.PII
// or 1234*.V01
// or 12 // mbus primary
// or 0 // mbus primary
// or 250.MPII.T1B.V01 // mbus primary
id = "";
mbus_primary = false;
mfct = 0;
type = 0;
version = 0;
if (s.size() == 0) return false;
vector<string> parts = splitString(s, '.');
assert(parts.size() > 0);
if (!isValidMatchExpression(parts[0], true))
{
// Not a long id, so lets check if it is 0-250.
for (size_t i=0; i < parts[0].length(); ++i)
{
if (!isdigit(parts[0][i])) return false;
}
// All digits good.
int v = atoi(parts[0].c_str());
if (v < 0 || v > 250) return false;
// It is 0-250 which means it is an mbus primary address.
mbus_primary = true;
}
id = parts[0];
for (size_t i=1; i<parts[i].size(); ++i)
{
if (parts[i].size() == 4) // V=xy or T=xy
{
if (parts[i][1] != '=') return false;
vector<uchar> data;
bool ok = hex2bin(&parts[i][2], &data);
if (!ok) return false;
if (data.size() != 1) return false;
if (parts[i][0] == 'V')
{
version = data[0];
}
else if (parts[i][0] == 'T')
{
type = data[0];
}
else
{
return false;
}
}
else if (parts[i].size() == 5) // M=xyz
{
if (parts[i][1] != '=') return false;
if (parts[i][0] != 'M') return false;
bool ok = flagToManufacturer(&parts[i][2], &mfct);
if (!ok) return false;
}
else
{
return false;
}
}
return true;
}
bool checkIf(set<string> &fields, const char *s)
{
if (fields.count(s) > 0)
{
fields.erase(s);
return true;
}
return false;
}
void checkFieldsEmpty(set<string> &fields, string name)
{
if (fields.size() > 0)
{
string info;
for (auto &s : fields) { info += s+" "; }
warning("(meter) when adding common fields to driver %s, these fields were not found: %s\n",
name.c_str(),
info.c_str());
}
}
void MeterCommonImplementation::addOptionalCommonFields(string field_names)
{
set<string> fields = splitStringIntoSet(field_names, ',');
if (checkIf(fields, "actuality_duration_s"))
{
addNumericFieldWithExtractor(
"actuality_duration",
"Lapsed time between measurement and transmission.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Time,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ActualityDuration),
Unit::Second
);
}
if (checkIf(fields, "actuality_duration_h"))
{
addNumericFieldWithExtractor(
"actuality_duration",
"Lapsed time between measurement and transmission.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Time,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ActualityDuration)
);
}
if (checkIf(fields, "fabrication_no"))
{
addStringFieldWithExtractor(
"fabrication_no",
"Fabrication number.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::FabricationNo)
);
}
if (checkIf(fields,"enhanced_id"))
{
addStringFieldWithExtractor(
"enhanced_id",
"Enhanced identification number.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::EnhancedIdentification)
);
}
if (checkIf(fields,"software_version"))
{
addStringFieldWithExtractor(
"software_version",
"Software version.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::SoftwareVersion)
);
}
if (checkIf(fields,"model_version"))
{
addStringFieldWithExtractor(
"model_version",
"Meter model version.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ModelVersion)
);
}
if (checkIf(fields,"parameter_set"))
{
addStringFieldWithExtractor(
"parameter_set",
"Parameter set for this meter.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ParameterSet)
);
}
if (checkIf(fields,"customer"))
{
addStringFieldWithExtractor(
"customer",
"Customer name.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Customer)
);
}
if (checkIf(fields,"location"))
{
addStringFieldWithExtractor(
"location",
"Meter installed at this customer location.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Location)
);
}
if (checkIf(fields,"operating_time_h"))
{
addNumericFieldWithExtractor(
"operating_time",
"How long the meter has been collecting data.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Time,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::OperatingTime)
);
}
if (checkIf(fields,"on_time_h"))
{
addNumericFieldWithExtractor(
"on_time",
"How long the meter has been powered up.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Time,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::OnTime)
);
}
if (checkIf(fields,"on_time_at_error_h"))
{
addNumericFieldWithExtractor(
"on_time_at_error",
"How long the meter has been in an error state while powered up.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Time,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::AtError)
.set(VIFRange::OnTime)
);
}
if (checkIf(fields,"meter_date"))
{
addStringFieldWithExtractor(
"meter_date",
"Date when the meter sent the telegram.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Date)
);
}
if (checkIf(fields,"meter_date_at_error"))
{
addStringFieldWithExtractor(
"meter_date_at_error",
"Date when the meter was in error.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::AtError)
.set(VIFRange::Date)
);
}
if (checkIf(fields,"meter_datetime"))
{
addStringFieldWithExtractor(
"meter_datetime",
"Date and time when the meter sent the telegram.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::DateTime)
);
}
if (checkIf(fields,"meter_datetime_at_error"))
{
addStringFieldWithExtractor(
"meter_datetime_at_error",
"Date and time when the meter was in error.",
DEFAULT_PRINT_PROPERTIES,
FieldMatcher::build()
.set(MeasurementType::AtError)
.set(VIFRange::DateTime)
);
}
checkFieldsEmpty(fields, name());
}
void MeterCommonImplementation::addOptionalFlowRelatedFields(string field_names)
{
set<string> fields = splitStringIntoSet(field_names, ',');
if (checkIf(fields,"total_m3"))
{
addNumericFieldWithExtractor(
"total",
"The total media volume consumption recorded by this meter.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Volume,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Volume)
);
}
if (checkIf(fields,"target_m3"))
{
addNumericFieldWithExtractor(
"target",
"The volume recorded by this meter at the target date.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Volume,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Volume)
.set(StorageNr(1))
);
}
if (checkIf(fields,"target_date"))
{
addNumericFieldWithExtractor(
"target",
"The target date. Usually the end of the previous billing period.",
DEFAULT_PRINT_PROPERTIES,
Quantity::PointInTime,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Date)
.set(StorageNr(1)),
Unit::DateLT
);
}
if (checkIf(fields,"total_forward_m3"))
{
addNumericFieldWithExtractor(
"total_forward",
"The total media volume flowing forward.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Volume,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Volume)
.add(VIFCombinable::ForwardFlow)
);
}
if (checkIf(fields,"total_backward_m3"))
{
addNumericFieldWithExtractor(
"total_backward",
"The total media volume flowing backward.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Volume,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::Volume)
.add(VIFCombinable::BackwardFlow)
);
}
if (checkIf(fields,"flow_temperature_c"))
{
addNumericFieldWithExtractor(
"flow_temperature",
"Forward media temperature.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Temperature,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::FlowTemperature)
);
}
if (checkIf(fields,"external_temperature_c"))
{
addNumericFieldWithExtractor(
"external_temperature",
"Temperature outside of meter.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Temperature,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ExternalTemperature)
);
}
if (checkIf(fields,"return_temperature_c"))
{
addNumericFieldWithExtractor(
"return_temperature",
"Return media temperature.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Temperature,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::ReturnTemperature)
);
}
if (checkIf(fields,"flow_return_temperature_difference_c"))
{
addNumericFieldWithExtractor(
"flow_return_temperature_difference",
"The difference between flow and return media temperatures.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Temperature,
VifScaling::AutoSigned,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::TemperatureDifference)
);
}
if (checkIf(fields,"volume_flow_m3h"))
{
addNumericFieldWithExtractor(
"volume_flow",
"Media volume flow.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Flow,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::VolumeFlow)
);
}
if (checkIf(fields,"access_counter"))
{
addNumericFieldWithExtractor(
"access",
"Meter access counter.",
DEFAULT_PRINT_PROPERTIES,
Quantity::Dimensionless,
VifScaling::None,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::AccessNumber)
);
}
}
void MeterCommonImplementation::addHCARelatedFields(string field_names)
{
set<string> fields = splitStringIntoSet(field_names, ',');
if (checkIf(fields,"consumption_hca"))
{
addNumericFieldWithExtractor(
"consumption",
"The current heat cost allocation for this meter.",
DEFAULT_PRINT_PROPERTIES,
Quantity::HCA,
VifScaling::Auto,
FieldMatcher::build()
.set(MeasurementType::Instantaneous)
.set(VIFRange::HeatCostAllocation)
);
}
}
const char *toString(VifScaling s)
{
switch (s)
{
case VifScaling::None: return "None";
case VifScaling::Auto: return "Auto";
case VifScaling::NoneSigned: return "NoneSigned";
case VifScaling::AutoSigned: return "AutoSigned";
}
return "?";
}
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