DQMService Class Reference

#include <DQMService.h>

Public Member Functions
	DQMService (const edm::ParameterSet &pset, edm::ActivityRegistry &ar)
void	flush (edm::StreamContext const &sc)
void	flushStandalone ()
	~DQMService (void)

Private Member Functions
void	shutdown (void)

Private Attributes
lat::Regexp *	filter_
double	lastFlush_
DQMBasicNet *	net_
double	publishFrequency_
DQMStore *	store_

Detailed Description

A bridge to udpate the DQM network layer at the end of every event.

Definition at line 13 of file DQMService.h.

Constructor & Destructor Documentation

DQMService::DQMService	(	const edm::ParameterSet &	pset,
		edm::ActivityRegistry &	ar
	)

Definition at line 29 of file DQMService.cc.

References alignCSCRings::e, Exception, alcazmumu_cfi::filter, filter_, flush(), edm::ParameterSet::getUntrackedParameter(), query::host, query::port, publishFrequency_, AlCaHLTBitMon_QueryRunRegistry::string, edm::ActivityRegistry::watchPostEvent(), and edm::ActivityRegistry::watchPostStreamEndLumi().

  : store_(&*edm::Service<DQMStore>()),
    net_(0),
    filter_(0),
    lastFlush_(0),
    publishFrequency_(5.0)
{
  ar.watchPostEvent(this, &DQMService::flush);
  ar.watchPostStreamEndLumi(this, &DQMService::flush);

  std::string host = pset.getUntrackedParameter<std::string>("collectorHost", ""); 
  int port = pset.getUntrackedParameter<int>("collectorPort", 9090);
  bool verbose = pset.getUntrackedParameter<bool>("verbose", false);
  publishFrequency_ = pset.getUntrackedParameter<double>("publishFrequency", publishFrequency_);
  std::string filter = pset.getUntrackedParameter<std::string>("filter", "");

  if (host != "" && port > 0)
  {
    net_ = new DQMBasicNet;
    net_->debug(verbose);
    net_->updateToCollector(host, port);
    net_->start();
  }

  if (! filter.empty())
  {
    try
    {
      filter_ = new lat::Regexp(filter);
      if (! filter_->valid())
    throw cms::Exception("DQMService")
      << "Invalid 'filter' parameter value '" << filter << "':"
      << " bad regular expression syntax at character "
      << filter_->errorOffset() << ": " << filter_->errorMessage();
      filter_->study();
    }
    catch (lat::Error &e)
    {
      throw cms::Exception("DQMService")
    << "Invalid regular expression 'filter' parameter value '"
    << filter << "': " << e.explain();
    }
  }
}

DQMService::~DQMService

(

void

)

Definition at line 74 of file DQMService.cc.

References shutdown().

{
  shutdown();
}

Member Function Documentation

void DQMService::flush

(

edm::StreamContext const &

sc

)

Definition at line 181 of file DQMService.cc.

References flushStandalone().

Referenced by DQMService().

{
  // Call a function independent to the framework
  flushStandalone();
}

void DQMService::flushStandalone

(

)

Definition at line 82 of file DQMService.cc.

References assert(), MonitorElement::data_, DQMStore::data_, DQMNet::CoreObject::dirname, MonitorElement::DQM_KIND_INT, MonitorElement::DQM_KIND_REAL, MonitorElement::DQM_KIND_STRING, DQMNet::dqmhash(), alignCSCRings::e, filter_, DQMNet::CoreObject::flags, DQMNet::Object::hash, i, MonitorElement::kind(), lastFlush_, DQMNet::Object::lastreq, connectstrParser::o, MonitorElement::object_, DQMNet::CoreObject::objname, DQMNet::packQualityData(), MonitorElement::packScalarData(), publishFrequency_, DQMNet::Object::qdata, DQMNet::CoreObject::qreports, DQMNet::Object::rawdata, MonitorElement::reference_, DQMStore::reset(), DQMNet::Object::scalar, store_, AlCaHLTBitMon_QueryRunRegistry::string, DQMNet::CoreObject::tag, DQMNet::CoreObject::version, relval_steps::version, and MonitorElement::wasUpdated().

Referenced by flush().

{
  // Avoid sending updates excessively often.
  uint64_t version = lat::Time::current().ns();
  double vtime = version * 1e-9;
  if (vtime - lastFlush_ < publishFrequency_)
    return;

  // OK, send an update.
  if (net_)
  {
    DQMNet::Object o;
    std::set<std::string> seen;
    std::string fullpath;

    // Lock the network layer so we can modify the data.
    net_->lock();
    bool updated = false;

    // Find updated contents and update the network cache.
    DQMStore::MEMap::iterator i, e;
    net_->reserveLocalSpace(store_->data_.size());
    for (i = store_->data_.begin(), e = store_->data_.end(); i != e; ++i)
    {
      const MonitorElement &me = *i;
      fullpath.clear();
      fullpath += *me.data_.dirname;
      if (! me.data_.dirname->empty())
        fullpath += '/';
      fullpath += me.data_.objname;

      if (filter_ && filter_->search(fullpath) < 0)
    continue;

      seen.insert(fullpath);
      if (! me.wasUpdated())
    continue;

      o.lastreq = 0;
      o.hash = DQMNet::dqmhash(fullpath.c_str(), fullpath.size());
      o.flags = me.data_.flags;
      o.tag = me.data_.tag;
      o.version = version;
      o.dirname = me.data_.dirname;
      o.objname = me.data_.objname;
      assert(o.rawdata.empty());
      assert(o.scalar.empty());
      assert(o.qdata.empty());

      // Pack object and reference, scalar and quality data.
      switch (me.kind())
      {
      case MonitorElement::DQM_KIND_INT:
      case MonitorElement::DQM_KIND_REAL:
      case MonitorElement::DQM_KIND_STRING:
    me.packScalarData(o.scalar, "");
    break;

      default:
    {
          TBufferFile buffer(TBufferFile::kWrite);
          buffer.WriteObject(me.object_);
          if (me.reference_)
        buffer.WriteObject(me.reference_);
          else
        buffer.WriteObjectAny(0, 0);
          o.rawdata.resize(buffer.Length());
          memcpy(&o.rawdata[0], buffer.Buffer(), buffer.Length());
          DQMNet::packQualityData(o.qdata, me.data_.qreports);
      break;
    }
      }

      // Update.
      net_->updateLocalObject(o);
      DQMNet::DataBlob().swap(o.rawdata);
      std::string().swap(o.scalar);
      std::string().swap(o.qdata);
      updated = true;
    }

    // Find removed contents and clear the network cache.
    if (net_->removeLocalExcept(seen))
      updated = true;

    // Unlock the network layer.
    net_->unlock();

    // Tell network to flush if we updated something.
    if (updated)
      net_->sendLocalChanges();
  }

  store_->reset();
  lastFlush_ = lat::Time::current().ns() * 1e-9;


}

void DQMService::shutdown ( void  )

private

Definition at line 189 of file DQMService.cc.

Referenced by ~DQMService().

{
  // If we have a network, let it go.
  if (net_)
    net_->shutdown();
}

Member Data Documentation

lat::Regexp* DQMService::filter_

private

Definition at line 26 of file DQMService.h.

Referenced by DQMService(), and flushStandalone().

double DQMService::lastFlush_

private

Definition at line 27 of file DQMService.h.

Referenced by flushStandalone().

DQMBasicNet* DQMService::net_

private

Definition at line 25 of file DQMService.h.

double DQMService::publishFrequency_

private

Definition at line 28 of file DQMService.h.

Referenced by DQMService(), and flushStandalone().

DQMStore* DQMService::store_

private

Definition at line 24 of file DQMService.h.

Referenced by flushStandalone().