/data/refman/pasoursint/CMSSW_5_3_0/src/EventFilter/StorageManager/src/DataSenderMonitorCollection.cc

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// $Id: DataSenderMonitorCollection.cc,v 1.20 2012/04/20 10:48:02 mommsen Exp $

#include <string>
#include <sstream>
#include <iomanip>

#include <zlib.h>
#include <boost/lexical_cast.hpp>

#include "EventFilter/StorageManager/interface/Exception.h"
#include "EventFilter/StorageManager/interface/DataSenderMonitorCollection.h"


namespace stor {
  
  DataSenderMonitorCollection::DataSenderMonitorCollection
  (
    const utils::Duration_t& updateInterval,
    AlarmHandlerPtr ah
  ) :
  MonitorCollection(updateInterval),
  connectedRBs_(0),
  connectedEPs_(0),
  activeEPs_(0),
  outstandingDataDiscards_(0),
  outstandingDQMDiscards_(0),
  faultyEvents_(0),
  ignoredDiscards_(0),
  updateInterval_(updateInterval),
  alarmHandler_(ah)
  {}
  
  
  void DataSenderMonitorCollection::addInitSample(I2OChain const& i2oChain)
  {
    // sanity checks
    if (i2oChain.messageCode() != Header::INIT) {return;}
    if (! i2oChain.complete()) {return;}
    
    // fetch basic data from the I2OChain
    std::string outModName = i2oChain.outputModuleLabel();
    uint32_t msgSize = i2oChain.totalDataSize();
    
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    OutModRecordPtr topLevelOutModPtr, rbSpecificOutModPtr, fuSpecificOutModPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getAllNeededPointers(
        i2oChain, rbRecordPtr, fuRecordPtr,
        topLevelOutModPtr, rbSpecificOutModPtr,
        fuSpecificOutModPtr);
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      topLevelOutModPtr->name = outModName;
      topLevelOutModPtr->initMsgSize = msgSize;
      
      ++rbRecordPtr->initMsgCount;
      rbRecordPtr->nExpectedEPs += i2oChain.nExpectedEPs();
      rbSpecificOutModPtr->name = outModName;
      rbSpecificOutModPtr->initMsgSize = msgSize;
      
      ++fuRecordPtr->initMsgCount;
      fuSpecificOutModPtr->name = outModName;
      fuSpecificOutModPtr->initMsgSize = msgSize;
    }
  }
  
  
  void DataSenderMonitorCollection::addEventSample(I2OChain const& i2oChain)
  {
    // sanity checks
    if (i2oChain.messageCode() != Header::EVENT) {return;}
    if (! i2oChain.complete()) {return;}

    // fetch basic data from the I2OChain
    double eventSize = static_cast<double>(i2oChain.totalDataSize());
    uint32_t runNumber = i2oChain.runNumber();
    uint32_t eventNumber = i2oChain.eventNumber();
    
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    OutModRecordPtr topLevelOutModPtr, rbSpecificOutModPtr, fuSpecificOutModPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getAllNeededPointers(
        i2oChain, rbRecordPtr, fuRecordPtr,
        topLevelOutModPtr, rbSpecificOutModPtr,
        fuSpecificOutModPtr);
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      topLevelOutModPtr->eventSize.addSample(eventSize);
      
      rbRecordPtr->lastRunNumber = runNumber;
      rbRecordPtr->lastEventNumber = eventNumber;
      rbRecordPtr->eventSize.addSample(eventSize);
      rbSpecificOutModPtr->eventSize.addSample(eventSize);
      
      fuRecordPtr->lastRunNumber = runNumber;
      fuRecordPtr->lastEventNumber = eventNumber;
      fuRecordPtr->shortIntervalEventSize.addSample(eventSize);
      fuRecordPtr->mediumIntervalEventSize.addSample(eventSize);
      fuSpecificOutModPtr->eventSize.addSample(eventSize);
    }
  }
  
  
  void DataSenderMonitorCollection::addDQMEventSample(I2OChain const& i2oChain)
  {
    // sanity checks
    if (i2oChain.messageCode() != Header::DQM_EVENT) {return;}
    if (! i2oChain.complete()) {return;}
    
    // fetch basic data from the I2OChain
    double eventSize = static_cast<double>(i2oChain.totalDataSize());
    
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      rbRecordPtr->dqmEventSize.addSample(eventSize);
      fuRecordPtr->dqmEventSize.addSample(eventSize);
    }
  }
  
  
  void DataSenderMonitorCollection::addErrorEventSample(I2OChain const& i2oChain)
  {
    // sanity checks
    if (i2oChain.messageCode() != Header::ERROR_EVENT) {return;}
    if (! i2oChain.complete()) {return;}
    
    // fetch basic data from the I2OChain
    double eventSize = static_cast<double>(i2oChain.totalDataSize());
    
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      rbRecordPtr->errorEventSize.addSample(eventSize);
      fuRecordPtr->errorEventSize.addSample(eventSize);
    }
  }
  
  
  void DataSenderMonitorCollection::addFaultyEventSample(I2OChain const& i2oChain)
  {
    // fetch basic data from the I2OChain
    double eventSize = static_cast<double>(i2oChain.totalDataSize());
    
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      if (i2oChain.messageCode() == Header::DQM_EVENT)
      {
        rbRecordPtr->faultyDQMEventSize.addSample(eventSize);
        fuRecordPtr->faultyDQMEventSize.addSample(eventSize);
      }
      else
      {
        rbRecordPtr->faultyEventSize.addSample(eventSize);
        fuRecordPtr->faultyEventSize.addSample(eventSize);
      }
    }
  }
  
  
  void DataSenderMonitorCollection::incrementDataDiscardCount(I2OChain const& i2oChain)
  {
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      rbRecordPtr->dataDiscardCount.addSample(1);
      fuRecordPtr->dataDiscardCount.addSample(1);
    }
  }
  
  
  void DataSenderMonitorCollection::incrementDQMDiscardCount(I2OChain const& i2oChain)
  {
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      rbRecordPtr->dqmDiscardCount.addSample(1);
      fuRecordPtr->dqmDiscardCount.addSample(1);
    }
  }
  
  
  void DataSenderMonitorCollection::incrementSkippedDiscardCount(I2OChain const& i2oChain)
  {
    // look up the monitoring records that we need
    bool pointersAreValid;
    RBRecordPtr rbRecordPtr;
    FURecordPtr fuRecordPtr;
    {
      boost::mutex::scoped_lock sl(collectionsMutex_);
      pointersAreValid = getRBRecordPointer(i2oChain, rbRecordPtr);
      if (pointersAreValid)
      {
        pointersAreValid = getFURecordPointer(i2oChain, rbRecordPtr, fuRecordPtr);
      }
    }
    
    // accumulate the data of interest
    if (pointersAreValid)
    {
      rbRecordPtr->skippedDiscardCount.addSample(1);
      fuRecordPtr->skippedDiscardCount.addSample(1);
    }
  }
  
  
  DataSenderMonitorCollection::OutputModuleResultsList
  DataSenderMonitorCollection::getTopLevelOutputModuleResults() const
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    
    return buildOutputModuleResults(outputModuleMap_);
  }
  
  
  DataSenderMonitorCollection::ResourceBrokerResultsList
  DataSenderMonitorCollection::getAllResourceBrokerResults() const
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    ResourceBrokerResultsList resultsList;
    
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapEnd =
      resourceBrokerMap_.end();
    for (rbMapIter = resourceBrokerMap_.begin(); rbMapIter != rbMapEnd; ++rbMapIter)
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      RBResultPtr result = buildResourceBrokerResult(rbRecordPtr);
      result->uniqueRBID = rbMapIter->first;
      resultsList.push_back(result);
    }
    
    return resultsList;
  }
  
  
  DataSenderMonitorCollection::RBResultPtr
  DataSenderMonitorCollection::getOneResourceBrokerResult(UniqueResourceBrokerID_t uniqueRBID) const
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    RBResultPtr result;
    
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    rbMapIter = resourceBrokerMap_.find(uniqueRBID);
    if (rbMapIter != resourceBrokerMap_.end())
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      result = buildResourceBrokerResult(rbRecordPtr);
      result->uniqueRBID = rbMapIter->first;
    }
    
    return result;
  }
  
  
  DataSenderMonitorCollection::OutputModuleResultsList
  DataSenderMonitorCollection::getOutputModuleResultsForRB(UniqueResourceBrokerID_t uniqueRBID) const
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    OutputModuleResultsList resultsList;
    
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    rbMapIter = resourceBrokerMap_.find(uniqueRBID);
    if (rbMapIter != resourceBrokerMap_.end())
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      resultsList = buildOutputModuleResults(rbRecordPtr->outputModuleMap);
    }
    
    return resultsList;
  }
  
  
  DataSenderMonitorCollection::FilterUnitResultsList
  DataSenderMonitorCollection::getFilterUnitResultsForRB(UniqueResourceBrokerID_t uniqueRBID) const
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    FilterUnitResultsList resultsList;
    
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    rbMapIter = resourceBrokerMap_.find(uniqueRBID);
    if (rbMapIter != resourceBrokerMap_.end())
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapIter;
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapEnd =
        rbRecordPtr->filterUnitMap.end();        
      for (fuMapIter = rbRecordPtr->filterUnitMap.begin();
           fuMapIter != fuMapEnd; ++fuMapIter)
      {
        FURecordPtr fuRecordPtr = fuMapIter->second;
        FUResultPtr result(new FilterUnitResult(fuRecordPtr->key));
        result->initMsgCount = fuRecordPtr->initMsgCount;
        result->lastRunNumber = fuRecordPtr->lastRunNumber;
        result->lastEventNumber = fuRecordPtr->lastEventNumber;
        fuRecordPtr->shortIntervalEventSize.getStats(result->shortIntervalEventStats);
        fuRecordPtr->mediumIntervalEventSize.getStats(result->mediumIntervalEventStats);
        fuRecordPtr->dqmEventSize.getStats(result->dqmEventStats);
        fuRecordPtr->errorEventSize.getStats(result->errorEventStats);
        fuRecordPtr->faultyEventSize.getStats(result->faultyEventStats);
        fuRecordPtr->faultyDQMEventSize.getStats(result->faultyDQMEventStats);
        fuRecordPtr->dataDiscardCount.getStats(result->dataDiscardStats);
        fuRecordPtr->dqmDiscardCount.getStats(result->dqmDiscardStats);
        fuRecordPtr->skippedDiscardCount.getStats(result->skippedDiscardStats);
        
        result->outstandingDataDiscardCount =
          result->initMsgCount +
          result->shortIntervalEventStats.getSampleCount() +
          result->errorEventStats.getSampleCount() +
          result->faultyEventStats.getSampleCount() -
          result->dataDiscardStats.getSampleCount();
        result->outstandingDQMDiscardCount =
          result->dqmEventStats.getSampleCount() +
          result->faultyDQMEventStats.getSampleCount() -
          result->dqmDiscardStats.getSampleCount();
        
        resultsList.push_back(result);
      }
    }
    
    return resultsList;
  }
  
  
  void DataSenderMonitorCollection::do_calculateStatistics()
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapEnd =
      resourceBrokerMap_.end();
    for (rbMapIter=resourceBrokerMap_.begin(); rbMapIter!=rbMapEnd; ++rbMapIter)
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      rbRecordPtr->eventSize.calculateStatistics();
      rbRecordPtr->dqmEventSize.calculateStatistics();
      rbRecordPtr->errorEventSize.calculateStatistics();
      rbRecordPtr->faultyEventSize.calculateStatistics();
      rbRecordPtr->faultyDQMEventSize.calculateStatistics();
      rbRecordPtr->dataDiscardCount.calculateStatistics();
      rbRecordPtr->dqmDiscardCount.calculateStatistics();
      rbRecordPtr->skippedDiscardCount.calculateStatistics();
      calcStatsForOutputModules(rbRecordPtr->outputModuleMap);
      
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapIter;
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapEnd =
        rbRecordPtr->filterUnitMap.end();        
      for (fuMapIter = rbRecordPtr->filterUnitMap.begin();
           fuMapIter != fuMapEnd; ++fuMapIter)
      {
        FURecordPtr fuRecordPtr = fuMapIter->second;
        fuRecordPtr->shortIntervalEventSize.calculateStatistics();
        fuRecordPtr->mediumIntervalEventSize.calculateStatistics();
        fuRecordPtr->dqmEventSize.calculateStatistics();
        fuRecordPtr->errorEventSize.calculateStatistics();
        fuRecordPtr->faultyEventSize.calculateStatistics();
        fuRecordPtr->faultyDQMEventSize.calculateStatistics();
        fuRecordPtr->dataDiscardCount.calculateStatistics();
        fuRecordPtr->dqmDiscardCount.calculateStatistics();
        fuRecordPtr->skippedDiscardCount.calculateStatistics();
        calcStatsForOutputModules(fuRecordPtr->outputModuleMap);
      }
    }
    
    calcStatsForOutputModules(outputModuleMap_);
  }
  
  
  void DataSenderMonitorCollection::do_reset()
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    
    connectedRBs_ = 0;
    connectedEPs_ = 0;
    activeEPs_ = 0;
    outstandingDataDiscards_ = 0;
    outstandingDQMDiscards_ = 0;
    faultyEvents_ = 0;
    ignoredDiscards_ = 0;
    resourceBrokerMap_.clear();
    outputModuleMap_.clear();
  }
  
  
  void DataSenderMonitorCollection::do_appendInfoSpaceItems(InfoSpaceItems& infoSpaceItems)
  {
    infoSpaceItems.push_back(std::make_pair("connectedRBs", &connectedRBs_));
    infoSpaceItems.push_back(std::make_pair("connectedEPs", &connectedEPs_));
    infoSpaceItems.push_back(std::make_pair("activeEPs", &activeEPs_));
    infoSpaceItems.push_back(std::make_pair("outstandingDataDiscards", &outstandingDataDiscards_));
    infoSpaceItems.push_back(std::make_pair("outstandingDQMDiscards", &outstandingDQMDiscards_));
    infoSpaceItems.push_back(std::make_pair("faultyEvents", &faultyEvents_));
    infoSpaceItems.push_back(std::make_pair("ignoredDiscards", &ignoredDiscards_));
  }
  
  
  void DataSenderMonitorCollection::do_updateInfoSpaceItems()
  {
    boost::mutex::scoped_lock sl(collectionsMutex_);
    
    connectedRBs_ = static_cast<xdata::UnsignedInteger32>(resourceBrokerMap_.size());
    
    uint32_t localEPCount = 0;
    uint32_t localActiveEPCount = 0;
    int localMissingDataDiscardCount = 0;
    int localMissingDQMDiscardCount = 0;
    uint32_t localFaultyEventsCount = 0;
    uint32_t localIgnoredDiscardCount = 0;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapEnd =
      resourceBrokerMap_.end();
    for (rbMapIter = resourceBrokerMap_.begin(); rbMapIter != rbMapEnd; ++rbMapIter)
    {
      RBRecordPtr rbRecordPtr = rbMapIter->second;
      if ( rbRecordPtr->initMsgCount > 0 )
        localEPCount += rbRecordPtr->nExpectedEPs / rbRecordPtr->initMsgCount;
      
      MonitoredQuantity::Stats skippedDiscardStats;
      rbRecordPtr->skippedDiscardCount.getStats(skippedDiscardStats);
      localIgnoredDiscardCount += skippedDiscardStats.getSampleCount();
      
      MonitoredQuantity::Stats eventStats;
      MonitoredQuantity::Stats errorEventStats;
      MonitoredQuantity::Stats dataDiscardStats;
      rbRecordPtr->eventSize.getStats(eventStats);
      rbRecordPtr->errorEventSize.getStats(errorEventStats);
      rbRecordPtr->dataDiscardCount.getStats(dataDiscardStats);
      localMissingDataDiscardCount += rbRecordPtr->initMsgCount + eventStats.getSampleCount() +
        errorEventStats.getSampleCount() - dataDiscardStats.getSampleCount();
      
      MonitoredQuantity::Stats dqmEventStats;
      MonitoredQuantity::Stats dqmDiscardStats;
      rbRecordPtr->dqmEventSize.getStats(dqmEventStats);
      rbRecordPtr->dqmDiscardCount.getStats(dqmDiscardStats);
      localMissingDQMDiscardCount += dqmEventStats.getSampleCount() -
        dqmDiscardStats.getSampleCount();
      
      MonitoredQuantity::Stats faultyEventStats;
      rbRecordPtr->faultyEventSize.getStats(faultyEventStats);
      localFaultyEventsCount += faultyEventStats.getSampleCount();
      MonitoredQuantity::Stats faultyDQMEventStats;
      rbRecordPtr->faultyDQMEventSize.getStats(faultyDQMEventStats);
      localFaultyEventsCount += faultyDQMEventStats.getSampleCount();
      
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapIter;
      std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapEnd =
        rbRecordPtr->filterUnitMap.end();        
      for (fuMapIter = rbRecordPtr->filterUnitMap.begin(); fuMapIter != fuMapEnd; ++fuMapIter)
      {
        FURecordPtr fuRecordPtr = fuMapIter->second;
        MonitoredQuantity::Stats fuMediumIntervalEventStats;
        fuRecordPtr->mediumIntervalEventSize.getStats(fuMediumIntervalEventStats);
        if (fuMediumIntervalEventStats.getSampleCount(MonitoredQuantity::RECENT) > 0) {
          ++localActiveEPCount;
        }
      }
    }
    connectedEPs_ = static_cast<xdata::UnsignedInteger32>(localEPCount);
    activeEPs_ = static_cast<xdata::UnsignedInteger32>(localActiveEPCount);
    outstandingDataDiscards_ = static_cast<xdata::Integer32>(localMissingDataDiscardCount);
    outstandingDQMDiscards_ = static_cast<xdata::Integer32>(localMissingDQMDiscardCount);
    faultyEvents_ = static_cast<xdata::UnsignedInteger32>(localFaultyEventsCount);
    ignoredDiscards_ = static_cast<xdata::UnsignedInteger32>(localIgnoredDiscardCount);
    
    faultyEventsAlarm(localFaultyEventsCount);
    ignoredDiscardAlarm(localIgnoredDiscardCount);
  }
  
  
  void DataSenderMonitorCollection::faultyEventsAlarm(const uint32_t& faultyEventsCount) const
  {
    const std::string alarmName = "FaultyEvents";
    
    if (faultyEventsCount > 0)
    {
      std::ostringstream msg;
      msg << "Missing or faulty I2O fragments for " <<
        faultyEventsCount <<
        " events. These events are lost!";
      XCEPT_DECLARE(stor::exception::FaultyEvents, ex, msg.str());
      alarmHandler_->raiseAlarm(alarmName, AlarmHandler::ERROR, ex);
    }
    else
    {
      alarmHandler_->revokeAlarm(alarmName);
    }
  }
  
  
  void DataSenderMonitorCollection::ignoredDiscardAlarm(const uint32_t& ignoredDiscardCount) const
  {
    const std::string alarmName = "IgnoredDiscard";
    
    if ( ignoredDiscardCount > 0)
    {
      std::ostringstream msg;
      msg << ignoredDiscardCount <<
        " discard messages ignored. These events might be stuck in the resource broker.";
      XCEPT_DECLARE(stor::exception::IgnoredDiscard, ex, msg.str());
      alarmHandler_->raiseAlarm(alarmName, AlarmHandler::ERROR, ex);
    }
    else
    {
      alarmHandler_->revokeAlarm(alarmName);
    }
  }

  
  size_t DataSenderMonitorCollection::getConnectedEPs() const
  {
    size_t count = 0;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapEnd =
      resourceBrokerMap_.end();
    for (rbMapIter = resourceBrokerMap_.begin(); rbMapIter != rbMapEnd; ++rbMapIter)
    {
      if ( rbMapIter->second->initMsgCount > 0 )
        count += rbMapIter->second->nExpectedEPs / rbMapIter->second->initMsgCount;
    }
    return count;
  }

  
  typedef DataSenderMonitorCollection DSMC;
  
  bool DSMC::getAllNeededPointers
  (
    I2OChain const& i2oChain,
    DSMC::RBRecordPtr& rbRecordPtr,
    DSMC::FURecordPtr& fuRecordPtr,
    DSMC::OutModRecordPtr& topLevelOutModPtr,
    DSMC::OutModRecordPtr& rbSpecificOutModPtr,
    DSMC::OutModRecordPtr& fuSpecificOutModPtr
  )
  {
    ResourceBrokerKey rbKey(i2oChain);
    if (! rbKey.isValid) {return false;}
    FilterUnitKey fuKey(i2oChain);
    if (! fuKey.isValid) {return false;}
    OutputModuleKey outModKey = i2oChain.outputModuleId();
    
    topLevelOutModPtr = getOutputModuleRecord(outputModuleMap_, outModKey);
    
    rbRecordPtr = getResourceBrokerRecord(rbKey);
    rbSpecificOutModPtr = getOutputModuleRecord(
      rbRecordPtr->outputModuleMap,
      outModKey);
    
    fuRecordPtr = getFilterUnitRecord(rbRecordPtr, fuKey);
    fuSpecificOutModPtr = getOutputModuleRecord(
      fuRecordPtr->outputModuleMap,
      outModKey);
    
    return true;
  }
  
  
  bool DSMC::getRBRecordPointer
  (
    I2OChain const& i2oChain,
    DSMC::RBRecordPtr& rbRecordPtr
  )
  {
    ResourceBrokerKey rbKey(i2oChain);
    if (! rbKey.isValid) {return false;}
    
    rbRecordPtr = getResourceBrokerRecord(rbKey);
    return true;
  }
  
  
  bool DSMC::getFURecordPointer
  (
    I2OChain const& i2oChain,
    DSMC::RBRecordPtr& rbRecordPtr,
    DSMC::FURecordPtr& fuRecordPtr
  )
  {
    FilterUnitKey fuKey(i2oChain);
    if (! fuKey.isValid) {return false;}
    
    fuRecordPtr = getFilterUnitRecord(rbRecordPtr, fuKey);
    return true;
  }
  
  
  DSMC::RBRecordPtr
  DSMC::getResourceBrokerRecord(DSMC::ResourceBrokerKey const& rbKey)
  {
    RBRecordPtr rbRecordPtr;
    UniqueResourceBrokerID_t uniqueRBID = getUniqueResourceBrokerID(rbKey);
    std::map<UniqueResourceBrokerID_t, RBRecordPtr>::const_iterator rbMapIter;
    rbMapIter = resourceBrokerMap_.find(uniqueRBID);
    if (rbMapIter == resourceBrokerMap_.end())
    {
      rbRecordPtr.reset(new ResourceBrokerRecord(rbKey,updateInterval_));
      resourceBrokerMap_[uniqueRBID] = rbRecordPtr;
    }
    else
    {
      rbRecordPtr = rbMapIter->second;
    }
    return rbRecordPtr;
  }
  
  
  DSMC::UniqueResourceBrokerID_t
  DSMC::getUniqueResourceBrokerID(DSMC::ResourceBrokerKey const& rbKey)
  {
    UniqueResourceBrokerID_t uniqueID;
    std::map<ResourceBrokerKey, UniqueResourceBrokerID_t>::const_iterator rbMapIter;
    rbMapIter = resourceBrokerIDs_.find(rbKey);
    if (rbMapIter == resourceBrokerIDs_.end())
    {
      std::string workString = rbKey.hltURL +
        boost::lexical_cast<std::string>(rbKey.hltTid) +
        boost::lexical_cast<std::string>(rbKey.hltInstance) +
        boost::lexical_cast<std::string>(rbKey.hltLocalId) +
        rbKey.hltClassName;
      uLong crc = crc32(0L, Z_NULL, 0);
      Bytef* crcbuf = (Bytef*) workString.data();
      crc = crc32(crc, crcbuf, workString.length());
      uniqueID = static_cast<UniqueResourceBrokerID_t>(crc);
      resourceBrokerIDs_[rbKey] = uniqueID;
    }
    else
    {
      uniqueID = rbMapIter->second;
    }
    return uniqueID;
  }
  
  
  DSMC::FURecordPtr
  DSMC::getFilterUnitRecord
  (
    DSMC::RBRecordPtr& rbRecordPtr,
    DSMC::FilterUnitKey const& fuKey
  )
  {
    FURecordPtr fuRecordPtr;
    std::map<FilterUnitKey, FURecordPtr>::const_iterator fuMapIter;
    fuMapIter = rbRecordPtr->filterUnitMap.find(fuKey);
    if (fuMapIter == rbRecordPtr->filterUnitMap.end())
    {
      fuRecordPtr.reset(new FilterUnitRecord(fuKey,updateInterval_));
      rbRecordPtr->filterUnitMap[fuKey] = fuRecordPtr;
    }
    else
    {
      fuRecordPtr = fuMapIter->second;
    }
    return fuRecordPtr;
  }
  
  
  DSMC::OutModRecordPtr
  DSMC::getOutputModuleRecord
  (
    OutputModuleRecordMap& outModMap,
    DSMC::OutputModuleKey const& outModKey
  )
  {
    OutModRecordPtr outModRecordPtr;
    OutputModuleRecordMap::const_iterator omMapIter;
    omMapIter = outModMap.find(outModKey);
    if (omMapIter == outModMap.end())
    {
      outModRecordPtr.reset(new OutputModuleRecord(updateInterval_));
      
      outModRecordPtr->name = "Unknown";
      outModRecordPtr->id = outModKey;
      outModRecordPtr->initMsgSize = 0;
      
      outModMap[outModKey] = outModRecordPtr;
    }
    else
    {
      outModRecordPtr = omMapIter->second;
    }
    return outModRecordPtr;
  }
  
  
  DSMC::OutputModuleResultsList
  DSMC::buildOutputModuleResults(DSMC::OutputModuleRecordMap const& outputModuleMap) const
  {
    OutputModuleResultsList resultsList;
    
    OutputModuleRecordMap::const_iterator omMapIter;
    OutputModuleRecordMap::const_iterator omMapEnd = outputModuleMap.end();
    for (omMapIter = outputModuleMap.begin(); omMapIter != omMapEnd; ++omMapIter)
    {
      OutModRecordPtr outModRecordPtr = omMapIter->second;
      boost::shared_ptr<OutputModuleResult> result(new OutputModuleResult());
      result->name = outModRecordPtr->name;
      result->id = outModRecordPtr->id;
      result->initMsgSize = outModRecordPtr->initMsgSize;
      outModRecordPtr->eventSize.getStats(result->eventStats);
      resultsList.push_back(result);
    }
    
    return resultsList;
  }
  
  
  DSMC::RBResultPtr
  DSMC::buildResourceBrokerResult(DSMC::RBRecordPtr const& rbRecordPtr) const
  {
    RBResultPtr result(new ResourceBrokerResult(rbRecordPtr->key));
    
    result->filterUnitCount = rbRecordPtr->initMsgCount>0 ? rbRecordPtr->nExpectedEPs / rbRecordPtr->initMsgCount : 0;
    result->initMsgCount = rbRecordPtr->initMsgCount;
    result->lastRunNumber = rbRecordPtr->lastRunNumber;
    result->lastEventNumber = rbRecordPtr->lastEventNumber;
    rbRecordPtr->eventSize.getStats(result->eventStats);
    rbRecordPtr->dqmEventSize.getStats(result->dqmEventStats);
    rbRecordPtr->errorEventSize.getStats(result->errorEventStats);
    rbRecordPtr->faultyEventSize.getStats(result->faultyEventStats);
    rbRecordPtr->faultyDQMEventSize.getStats(result->faultyDQMEventStats);
    rbRecordPtr->dataDiscardCount.getStats(result->dataDiscardStats);
    rbRecordPtr->dqmDiscardCount.getStats(result->dqmDiscardStats);
    rbRecordPtr->skippedDiscardCount.getStats(result->skippedDiscardStats);
    
    result->outstandingDataDiscardCount =
      result->initMsgCount +
      result->eventStats.getSampleCount() +
      result->errorEventStats.getSampleCount() +
      result->faultyEventStats.getSampleCount() -
      result->dataDiscardStats.getSampleCount();
    result->outstandingDQMDiscardCount =
      result->dqmEventStats.getSampleCount() +
      result->faultyDQMEventStats.getSampleCount() -
      result->dqmDiscardStats.getSampleCount();
    
    return result;
  }
  
  
  void DSMC::calcStatsForOutputModules(DSMC::OutputModuleRecordMap& outputModuleMap)
  {
    OutputModuleRecordMap::const_iterator omMapIter;
    OutputModuleRecordMap::const_iterator omMapEnd = outputModuleMap.end();
    for (omMapIter = outputModuleMap.begin(); omMapIter != omMapEnd; ++omMapIter)
    {
      OutModRecordPtr outModRecordPtr = omMapIter->second;
      
      outModRecordPtr->fragmentSize.calculateStatistics();
      outModRecordPtr->eventSize.calculateStatistics();
    }
  }
  
  
  bool compareRBResultPtrValues
  (
    DSMC::RBResultPtr firstValue,
    DSMC::RBResultPtr secondValue
  )
  {
    return *firstValue < *secondValue;
  }

} // namespace stor