OptionalModelObject ReverseTranslator::translateCoilSystemCoolingDX( const WorkspaceObject & workspaceObject )
{
  if( workspaceObject.iddObject().type() != IddObjectType::CoilSystem_Cooling_DX )
  {
     LOG(Error, "WorkspaceObject is not IddObjectType: CoilSystem:Cooling:DX");
     return boost::none;
  }

  Workspace workspace = workspaceObject.workspace();

  boost::optional<std::string> coolingCoilObjectType;
  boost::optional<std::string> coolingCoilName;

  coolingCoilObjectType = workspaceObject.getString(CoilSystem_Cooling_DXFields::CoolingCoilObjectType);
  coolingCoilName = workspaceObject.getString(CoilSystem_Cooling_DXFields::CoolingCoilName);

  boost::optional<WorkspaceObject> wo;

  if( coolingCoilObjectType && coolingCoilName )
  {
    wo = workspace.getObjectByTypeAndName(IddObjectType(coolingCoilObjectType.get()),coolingCoilName.get());
  }

  if( wo )
  {
    return translateAndMapWorkspaceObject(wo.get());
  }
  else
  {
    return boost::none;
  }
}
OptionalModelObject ReverseTranslator::translateEnergyManagementSystemConstructionIndexVariable(const WorkspaceObject & workspaceObject)
{
  if (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_ConstructionIndexVariable) {
    LOG(Error, "WorkspaceObject is not IddObjectType: EnergyManagementSystem_ConstructionIndexVariable");
    return boost::none;
  }

  OptionalString s1 = workspaceObject.getString(EnergyManagementSystem_ConstructionIndexVariableFields::Name);
  if(!s1){
    LOG(Error, "WorkspaceObject EnergyManagementSystem_ConstructionIndexVariable has no Name");
    return boost::none;
  }

  OptionalString s = workspaceObject.getString(EnergyManagementSystem_ConstructionIndexVariableFields::ConstructionObjectName);
  if (!s) {
    LOG(Error, workspaceObject.nameString() + ": has no ConstructionObjectName");
    return boost::none;
  }

  Workspace workspace = workspaceObject.workspace();

  if (s) {
    //std::vector<WorkspaceObject> wsObjects = workspace.getObjectsByTypeAndName(IddObjectType::Construction, *s);
    std::vector<WorkspaceObject> wsObjects = workspace.getObjectsByName(*s);
    if (wsObjects.size() > 1) {
      LOG(Error, workspaceObject.nameString() + ": Construction is not unique.  More than 1 object with that name.");
      return boost::none;
    }
    if (wsObjects.size() == 0) {
      LOG(Error, workspaceObject.nameString() + ": Construction not found.");
      return boost::none;
    } else {
      boost::optional<model::ModelObject> modelObject = translateAndMapWorkspaceObject(wsObjects[0]);
      if (modelObject) {
        openstudio::model::EnergyManagementSystemConstructionIndexVariable emsConstructionIndexVariable(m_model);
        emsConstructionIndexVariable.setName(*s1);
        emsConstructionIndexVariable.setConstructionObject(modelObject.get());
        return emsConstructionIndexVariable;
      }
    }
  }
  return boost::none;
}
OptionalModelObject ReverseTranslator::translateEnergyManagementSystemOutputVariable(const WorkspaceObject & workspaceObject)
{
  if (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_OutputVariable) {
    LOG(Error, "WorkspaceObject is not IddObjectType: EnergyManagementSystem_OutputVariable");
    return boost::none;
  }

  //make sure all other objects are translated first except below
  for (const WorkspaceObject& workspaceObject : m_workspace.objects()) {
    if ((workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_Program)
      && (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_Subroutine)
      && (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_ProgramCallingManager)
      && (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_MeteredOutputVariable)
      && (workspaceObject.iddObject().type() != IddObjectType::EnergyManagementSystem_OutputVariable)) {
      translateAndMapWorkspaceObject(workspaceObject);
    }
  }

  OptionalString s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::Name);
  if (!s) {
    LOG(Error, "EnergyManagementSystem_OutputVariable has no Name");
    return boost::none;
  }
  openstudio::model::EnergyManagementSystemOutputVariable emsOutputVariable(m_model);
  emsOutputVariable.setName(*s);

  s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::EMSVariableName);
  if (!s) {
    LOG(Error, emsOutputVariable.nameString() + ": EMSVariableName not set");
    return boost::none;
  } else {
    Workspace workspace = workspaceObject.workspace();
    //look for GlobalVariables, translate and check if there is a name match since GV's dont have name field.
    boost::optional<WorkspaceObject> wsObject = workspace.getObjectByTypeAndName(IddObjectType::EnergyManagementSystem_GlobalVariable, *s);
    //for (WorkspaceObject& wsObject : workspace.getObjectsByType(IddObjectType::EnergyManagementSystem_GlobalVariable)) {
    if (wsObject) {
      boost::optional<model::ModelObject> modelObject = translateAndMapWorkspaceObject(wsObject.get());
      if (modelObject) {
        if (modelObject.get().cast<EnergyManagementSystemGlobalVariable>().name() == s) {
          emsOutputVariable.setEMSVariableName(*s);
        }
      }
    }
    //look for name match on other (EMS) objects.
    for (WorkspaceObject& wsObject : workspace.getObjectsByName(*s)) {
      boost::optional<model::ModelObject> modelObject = translateAndMapWorkspaceObject(wsObject);
      if (modelObject) {
        emsOutputVariable.setEMSVariableName(*s);
        break;
      }
    }
  }

  s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::UpdateFrequency);
  if (!s) {
    LOG(Error, emsOutputVariable.nameString() + ": UpdateFrequency not set");
    return boost::none;
  } else {
    emsOutputVariable.setUpdateFrequency(*s);
  }

  s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::TypeofDatainVariable);
  if (!s) {
    LOG(Error, emsOutputVariable.nameString() + ": TypeofDatainVariable not set");
    return boost::none;
  } else {
    emsOutputVariable.setTypeOfDataInVariable(*s);
  }

  s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::Units);
  if (s) {
    emsOutputVariable.setUnits(*s);
  }

  s = workspaceObject.getString(EnergyManagementSystem_OutputVariableFields::EMSProgramorSubroutineName);
  if (s) {
    Workspace workspace = workspaceObject.workspace();
    for (WorkspaceObject& wsObject : workspace.getObjectsByName(*s)) {
      boost::optional<model::ModelObject> modelObject = translateAndMapWorkspaceObject(wsObject);
      if (modelObject) {
        if (modelObject.get().iddObjectType() == IddObjectType::OS_EnergyManagementSystem_Program) {
          emsOutputVariable.setEMSProgramOrSubroutineName(modelObject.get().cast<EnergyManagementSystemProgram>());
        } else if (modelObject.get().iddObjectType() == IddObjectType::OS_EnergyManagementSystem_Subroutine) {
          emsOutputVariable.setEMSProgramOrSubroutineName(modelObject.get().cast<EnergyManagementSystemSubroutine>());
        }
        return emsOutputVariable;
      }
    }
  }

  return emsOutputVariable;
}
OptionalModelObject ReverseTranslator::translateSetpointManagerSingleZoneReheat( const WorkspaceObject & workspaceObject )
{
  if( workspaceObject.iddObject().type() != IddObjectType::SetpointManager_SingleZone_Reheat )
  {
     LOG(Error, "WorkspaceObject is not IddObjectType: SetpointManager_SingleZone_Reheat");
     return boost::none;
  }

  bool nodeFound = false;

  if( boost::optional<std::string> setpointNodeName = workspaceObject.getString(SetpointManager_SingleZone_ReheatFields::SetpointNodeorNodeListName) )
  {
    boost::optional<Node> setpointNode = m_model.getModelObjectByName<Node>(setpointNodeName.get());

    if( setpointNode ) { nodeFound = true; }
  }

  if( ! nodeFound )
  {
    LOG(Error, workspaceObject.briefDescription() << " is not attached to a node in the model");

    return boost::none;
  }

  SetpointManagerSingleZoneReheat mo(m_model);

  boost::optional<std::string> s = workspaceObject.getString(SetpointManager_SingleZone_ReheatFields::Name);
  if( s )
  {
    mo.setName(s.get());
  }

  boost::optional<double> value = workspaceObject.getDouble(SetpointManager_SingleZone_ReheatFields::MinimumSupplyAirTemperature);
  if( value )
  {
    mo.setMinimumSupplyAirTemperature(value.get());
  }

  value = workspaceObject.getDouble(SetpointManager_SingleZone_ReheatFields::MaximumSupplyAirTemperature);
  if( value )
  {
    mo.setMaximumSupplyAirTemperature(value.get());
  }

  s = workspaceObject.getString(SetpointManager_SingleZone_ReheatFields::ControlZoneName);
  if( s )
  {
    boost::optional<ModelObject> modelObject;
    boost::optional<Space> space;

    if( boost::optional<WorkspaceObject> _zone = 
          workspaceObject.workspace().getObjectByTypeAndName(IddObjectType::Zone,s.get()) )
    {
      modelObject = translateAndMapWorkspaceObject(_zone.get());
    }

    if( modelObject )
    {
      if( (space = modelObject->optionalCast<Space>()) )
      {
        if( boost::optional<ThermalZone> thermalZone = space->thermalZone() )
        {
          mo.setControlZone(thermalZone.get());
        }
      }
    }
  }

  s = workspaceObject.getString(SetpointManager_SingleZone_ReheatFields::SetpointNodeorNodeListName);
  if( s )
  {
    if( boost::optional<Node> node = m_model.getModelObjectByName<Node>(s.get()) )
    {
      mo.addToNode(node.get());
    }
  }

  if( mo.setpointNode() )
  {
    return mo;
  }
  else
  {
    return boost::none;
  }
}
OptionalModelObject ReverseTranslator::translateZone( const WorkspaceObject & workspaceObject )
{
 if( workspaceObject.iddObject().type() != IddObjectType::Zone ){
    LOG(Error, "WorkspaceObject is not IddObjectType: Zone");
    return boost::none;
  }

  // this function creates a space and a thermal zone, it returns the space.  If you want the 
  // thermal zone you can reliably dereference the result of space.thermalZone().

  openstudio::model::ThermalZone thermalZone( m_model );

  openstudio::model::Space space( m_model );
  space.setThermalZone(thermalZone);

  boost::optional<std::string> idfZoneName;

  OptionalString s = workspaceObject.name();
  if(s){
    space.setName(*s);
    thermalZone.setName(*s + " Thermal Zone");
    idfZoneName = *s;
  }

  OptionalDouble d = workspaceObject.getDouble(ZoneFields::DirectionofRelativeNorth);
  if(d){
    space.setDirectionofRelativeNorth(*d);
  }

  d=workspaceObject.getDouble(ZoneFields::XOrigin);
  if(d){
    space.setXOrigin(*d);
  }

  d=workspaceObject.getDouble(ZoneFields::YOrigin);
  if(d){
    space.setYOrigin(*d);
  }

  d=workspaceObject.getDouble(ZoneFields::ZOrigin);
  if(d){
    space.setZOrigin(*d);
  }

  OptionalInt i = workspaceObject.getInt(ZoneFields::Type);
  if(i){
    // no-op
  }

  i = workspaceObject.getInt(ZoneFields::Multiplier);
  if(i){
    thermalZone.setMultiplier(*i);
  }

  d = workspaceObject.getDouble(ZoneFields::CeilingHeight);
  if(d){
    thermalZone.setCeilingHeight(*d);
  }

  d=workspaceObject.getDouble(ZoneFields::Volume);
  if(d){
    thermalZone.setVolume(*d);
  }

  s = workspaceObject.getString(ZoneFields::ZoneInsideConvectionAlgorithm);
  if(s){
    thermalZone.setZoneInsideConvectionAlgorithm(*s);
  }

  s = workspaceObject.getString(ZoneFields::ZoneOutsideConvectionAlgorithm);
  if(s){
    thermalZone.setZoneOutsideConvectionAlgorithm(*s);
  }

  s = workspaceObject.getString(ZoneFields::PartofTotalFloorArea);
  if(s){
    if(istringEqual("Yes",*s))
    {
      space.setPartofTotalFloorArea(true);
    }
    else
    {
      space.setPartofTotalFloorArea(false);
    }
  }

  // Thermostat

  // If the zone in the idf file does not have a name, there is no use in even trying to find a thermostat
  if( idfZoneName )
  {
    Workspace workspace = workspaceObject.workspace();
    
    std::vector<WorkspaceObject> _zoneControlThermostats;
    _zoneControlThermostats = workspace.getObjectsByType(IddObjectType::ZoneControl_Thermostat);

    for( const auto & _zoneControlThermostat : _zoneControlThermostats )
    {
      if( boost::optional<std::string> zoneName = _zoneControlThermostat.getString( ZoneControl_ThermostatFields::ZoneorZoneListName ) )
      {
        bool zoneControlThermostatfound = false;

        if( zoneName.get() == idfZoneName ) 
        { 
          zoneControlThermostatfound = true; 
        }
        else if( boost::optional<WorkspaceObject> _zoneList = workspace.getObjectByTypeAndName(IddObjectType::ZoneList,zoneName.get()) )
        {
          std::vector<IdfExtensibleGroup> zoneListGroup = _zoneList->extensibleGroups();

          for( const auto & zoneListElem : zoneListGroup )
          {
            boost::optional<std::string> zoneListZoneName = zoneListElem.getString(ZoneListExtensibleFields::ZoneName);
            if( zoneListZoneName )
            {
              if( zoneListZoneName.get() == idfZoneName ) { zoneControlThermostatfound = true; }
              break;
            }
          }
        }
        if( zoneControlThermostatfound )
        {
          std::vector<IdfExtensibleGroup> extensibleGroups = _zoneControlThermostat.extensibleGroups();
          for( const auto & extensibleGroup : extensibleGroups )
          {
            boost::optional<std::string> thermostatType = extensibleGroup.getString(ZoneControl_ThermostatExtensibleFields::ControlObjectType);
            boost::optional<std::string> thermostatName = extensibleGroup.getString(ZoneControl_ThermostatExtensibleFields::ControlName);

            if( thermostatName && thermostatType )
            {
              boost::optional<WorkspaceObject> _thermostat
               = workspace.getObjectByTypeAndName(IddObjectType(thermostatType.get()),thermostatName.get());
              
              if( _thermostat )
              {
                boost::optional<ModelObject> thermostat = translateAndMapWorkspaceObject(_thermostat.get());
                if( thermostat )
                {
                  if( boost::optional<ThermostatSetpointDualSetpoint> thermostatSetpointDualSetpoint
                      = thermostat->optionalCast<ThermostatSetpointDualSetpoint>() )
                  {
                    thermalZone.setThermostatSetpointDualSetpoint(thermostatSetpointDualSetpoint.get());
                  }
                }
              }
            }
          }
          break;
        }
      }
    }
  }

  // Zone Equipment
/*
  if( idfZoneName )
  {
    std::vector<WorkspaceObject> zoneHVACEquipmentConnections;
    zoneHVACEquipmentConnections = workspaceObject.workspace().getObjectsByType(IddObjectType::ZoneHVAC_EquipmentConnections);

    for( std::vector<WorkspaceObject>::iterator it = zoneHVACEquipmentConnections.begin();
         it != zoneHVACEquipmentConnections.end();
         it++ )
    {
      s = it->getString(ZoneHVAC_EquipmentConnectionsFields::ZoneName);

      if( s && istringEqual(s.get(),idfZoneName.get()) )
      {
        boost::optional<WorkspaceObject> _zoneEquipmentList = it->getTarget(ZoneHVAC_EquipmentConnectionsFields::ZoneConditioningEquipmentListName);

        if( _zoneEquipmentList )
        {
          translateAndMapWorkspaceObject(_zoneEquipmentList.get());
        }

        break;
      }
    }
  }
*/

  return space;
}
OptionalModelObject ReverseTranslator::translateAirLoopHVACOutdoorAirSystem( const WorkspaceObject & workspaceObject )
{
  if( workspaceObject.iddObject().type() != IddObjectType::AirLoopHVAC_OutdoorAirSystem )
  {
     LOG(Error, "WorkspaceObject is not IddObjectType: AirLoopHVAC_OutdoorAirSystem");
     return boost::none;
  }

  Workspace _workspace = workspaceObject.workspace();

  boost::optional<WorkspaceObject> _controllerList;
  boost::optional<WorkspaceObject> _controllerOutdoorAir;
  boost::optional<std::string> controllerName;
  boost::optional<std::string> controllerType;
  boost::optional<ControllerOutdoorAir> oaController;

  _controllerList = workspaceObject.getTarget(AirLoopHVAC_OutdoorAirSystemFields::ControllerListName);

  if( _controllerList )
  {
    for( int i = 1;
         _controllerList->getString(i);
         i = i + 2 )
    {
      controllerType = _controllerList->getString(i);
      controllerName = _controllerList->getString(i + 1);
      if( controllerType )
      {
        if( istringEqual(controllerType.get(),"Controller:OutdoorAir") )
        {
          break;
        }
      }
    }
  }

  if( controllerName && controllerType )
  {
    boost::optional<WorkspaceObject> wo = _workspace.getObjectByTypeAndName(IddObjectType(controllerType.get()),controllerName.get()); 
    if( wo )
    {
      boost::optional<ModelObject> mo = translateAndMapWorkspaceObject(wo.get());
      if( mo )
      {
        oaController = mo->optionalCast<ControllerOutdoorAir>();
      }
    }
  }

  if( oaController )
  {
    AirLoopHVACOutdoorAirSystem mo(m_model,oaController.get());

    boost::optional<std::string> name = workspaceObject.getString(AirLoopHVAC_OutdoorAirSystemFields::Name);
    if( name ) { mo.setName(name.get()); }

    Node outboardOANode = mo.outboardOANode().get();

    boost::optional<WorkspaceObject> _oaEquipmentList;
    boost::optional<WorkspaceObject> _outdoorAirMixer;
    std::vector<WorkspaceObject> equipmentVector;
    _oaEquipmentList = workspaceObject.getTarget(AirLoopHVAC_OutdoorAirSystemFields::OutdoorAirEquipmentListName);

    if( _oaEquipmentList )
    {
      for( int i = 1;
           _oaEquipmentList->getString(i);
           i = i + 2 )
      {
        boost::optional<std::string> equipmentName;
        boost::optional<std::string> equipmentType;

        equipmentType = _oaEquipmentList->getString(i);
        equipmentName = _oaEquipmentList->getString(i + 1);

        if( equipmentName && equipmentType )
        {
          boost::optional<WorkspaceObject> wo = _workspace.getObjectByTypeAndName(IddObjectType(equipmentType.get()),equipmentName.get());
          if( wo )
          {
            equipmentVector.push_back(wo.get());

            if( wo->iddObject().type() == IddObjectType::OutdoorAir_Mixer )
            {
              _outdoorAirMixer = wo;
            }
          }
        }
      }
      if( _outdoorAirMixer )
      {
        boost::optional<std::string> mixerOAInletNodeName = _outdoorAirMixer->getString(OutdoorAir_MixerFields::OutdoorAirStreamNodeName);
        boost::optional<std::string> mixerOAReliefNodeName = _outdoorAirMixer->getString(OutdoorAir_MixerFields::ReliefAirStreamNodeName);
        if( mixerOAInletNodeName ) { mo.outdoorAirModelObject()->cast<Node>().setName(mixerOAInletNodeName.get()); }
        if( mixerOAReliefNodeName ) { mo.reliefAirModelObject()->cast<Node>().setName(mixerOAReliefNodeName.get()); }

        boost::optional<std::string> oaStreamInletNodeName;
        boost::optional<std::string> oaStreamOutletNodeName;

        oaStreamInletNodeName = _outdoorAirMixer->getString(OutdoorAir_MixerFields::OutdoorAirStreamNodeName);

        while( oaStreamInletNodeName )
        {
          boost::optional<ModelObject> oaComponentModelObject;
          boost::optional<std::string> newOAStreamInletNodeName;

          for( std::vector<WorkspaceObject>::iterator it = equipmentVector.begin();
               it < equipmentVector.end();
               it++ )
          {
            switch(it->iddObject().type().value())
            {
              case openstudio::IddObjectType::EvaporativeCooler_Direct_ResearchSpecial :
              {
                oaStreamOutletNodeName = it->getString(EvaporativeCooler_Direct_ResearchSpecialFields::AirOutletNodeName);
                if( oaStreamOutletNodeName )
                {
                  if( istringEqual(oaStreamOutletNodeName.get(),oaStreamInletNodeName.get()) )
                  {
                    newOAStreamInletNodeName = it->getString(EvaporativeCooler_Direct_ResearchSpecialFields::AirInletNodeName);

                    oaComponentModelObject = translateAndMapWorkspaceObject(*it);
                  }
                }
                break;
              }
              default :
              {
                break;
              }
            }
            if( newOAStreamInletNodeName )
            {
              break;
            }
          }

          oaStreamInletNodeName = newOAStreamInletNodeName;

          if( oaComponentModelObject )
          {
            bool success = false;

            if( boost::optional<HVACComponent> hvacComponent = oaComponentModelObject->optionalCast<HVACComponent>() )
            {
              success = hvacComponent->addToNode(outboardOANode);

              if( success )
              {
                if( boost::optional<StraightComponent> straightComponent = hvacComponent->optionalCast<StraightComponent>() )
                {
                  if( oaStreamInletNodeName )
                  {
                    straightComponent->inletModelObject()->cast<Node>().setName(oaStreamInletNodeName.get());
                  }
                  if( oaStreamOutletNodeName )
                  {
                    straightComponent->outletModelObject()->cast<Node>().setName(oaStreamOutletNodeName.get());
                  }
                }
              }
            }

            if( ! success )
            {
              oaComponentModelObject->remove();
            }
          }
        }
      }
    }

    return mo;
  }
  else
  {
    return boost::none;
  }
}
OptionalModelObject ReverseTranslator::translateZoneHVACEquipmentList( const WorkspaceObject & workspaceObject )
{
  if(workspaceObject.iddObject().type() != IddObjectType::ZoneHVAC_EquipmentList){
    LOG(Error, "WorkspaceObject is not IddObjectType: ZoneHVAC:EquipmentList");
     return boost::none;
  }

  boost::optional<openstudio::model::ThermalZone> thermalZone;

  std::vector<WorkspaceObject> zoneHVACEquipmentConnections = workspaceObject.getSources(IddObjectType::ZoneHVAC_EquipmentConnections);
  if (zoneHVACEquipmentConnections.size() == 0){
    LOG(Error,"No ZoneHVAC:EquipmentConnections object associated with a zone. Check that IDF file is correct.");
    return boost::none;
  }else if (zoneHVACEquipmentConnections.size() > 1){
    LOG(Error,"More than 1 ZoneHVAC:EquipmentConnections objects associated with a zone. Check that IDF file is correct.");
    return boost::none;
  }

  for( const auto & zoneHVACEquipmentConnection : zoneHVACEquipmentConnections )
  {
    if( boost::optional<std::string> name = zoneHVACEquipmentConnection.getString(ZoneHVAC_EquipmentConnectionsFields::ZoneName) )
    {
      boost::optional<model::Space> space = m_model.getModelObjectByName<model::Space>(name.get());

      if( space )
      {
        thermalZone = space->thermalZone();
      }
    }
  }

  // get extensible groups for zone HVAC equipment list
  std::vector<IdfExtensibleGroup> extensibleGroups = workspaceObject.extensibleGroups();

  // loop over extensible groups
  unsigned n = extensibleGroups.size();
  for (unsigned i = 0; i < n; ++i){
    // define variables
    boost::optional<openstudio::model::ZoneHVACComponent> zoneHVACComponent;
    // get zone equipment object type and zone equipment object name from extensible group
    boost::optional<std::string> zoneEquipmentObjectType = extensibleGroups[i].getString(ZoneHVAC_EquipmentListExtensibleFields::ZoneEquipmentObjectType);
    boost::optional<std::string> zoneEquipmentName = extensibleGroups[i].getString(ZoneHVAC_EquipmentListExtensibleFields::ZoneEquipmentName);
    // get zone equipment workspace object by type and name
    if (zoneEquipmentObjectType && zoneEquipmentName){
      OptionalWorkspaceObject zoneEquipmentWorkspaceObject = workspaceObject.workspace().getObjectByTypeAndName(IddObjectType(*zoneEquipmentObjectType),*zoneEquipmentName);
      // translate zone equipment workspace object
      if (zoneEquipmentWorkspaceObject){
        OptionalModelObject zoneEquipmentModelObject = translateAndMapWorkspaceObject(*zoneEquipmentWorkspaceObject);
        // cast zone equipment model object to zone HVAC component
        if (zoneEquipmentModelObject){
          zoneHVACComponent = zoneEquipmentModelObject->optionalCast<ZoneHVACComponent>();
        }
      }
    }
    // add to thermal zone
    if (zoneHVACComponent && thermalZone){
      zoneHVACComponent->addToThermalZone(*thermalZone);
    }
  }

  return boost::none;
}
void WorkspaceWatcher::onObjectRemove(const WorkspaceObject& removedObject)
{
  OS_ASSERT(removedObject.initialized());
  OS_ASSERT(removedObject.workspace().isMember(removedObject.handle()));
}
void WorkspaceWatcher::onObjectAdd(const WorkspaceObject& addedObject)
{
  OS_ASSERT(addedObject.initialized());
  OS_ASSERT(addedObject.workspace().isMember(addedObject.handle()));
}
OptionalModelObject ReverseTranslator::translateAirLoopHVAC( const WorkspaceObject & workspaceObject )
{
  if( workspaceObject.iddObject().type() != IddObjectType::AirLoopHVAC )
  {
     LOG(Error, "WorkspaceObject is not IddObjectType: AirLoopHVAC");
     return boost::none;
  }

  OptionalModelObject result;
  boost::optional<double> val;
  boost::optional<std::string> optionalString;
  Workspace _workspace = workspaceObject.workspace();

  openstudio::model::AirLoopHVAC airLoopHVAC( m_model );

  boost::optional<std::string> supplyInletNodeName = workspaceObject.getString(AirLoopHVACFields::SupplySideInletNodeName);
  boost::optional<std::string> supplyOutletNodeName = workspaceObject.getString(AirLoopHVACFields::SupplySideOutletNodeNames);
  boost::optional<std::string> demandInletNodeName = workspaceObject.getString(AirLoopHVACFields::DemandSideInletNodeNames);
  boost::optional<std::string> demandOutletNodeName = workspaceObject.getString(AirLoopHVACFields::DemandSideOutletNodeName);

  Node supplyInletNode = airLoopHVAC.supplyInletNode();
  Node supplyOutletNode = airLoopHVAC.supplyOutletNode();
  Node demandInletNode = airLoopHVAC.demandInletNode();
  Node demandOutletNode = airLoopHVAC.demandOutletNode();

  if( supplyInletNodeName ) { supplyInletNode.setName(supplyInletNodeName.get()); }
  if( supplyOutletNodeName ) { supplyOutletNode.setName(supplyOutletNodeName.get()); }
  if( demandInletNodeName ) { demandInletNode.setName(demandInletNodeName.get()); }
  if( demandOutletNodeName ) { demandOutletNode.setName(demandOutletNodeName.get()); }

  optionalString = workspaceObject.getString(AirLoopHVACFields::Name);
  if( optionalString )
  {
    airLoopHVAC.setName(optionalString.get());
  }

  optionalString = workspaceObject.getString(AirLoopHVACFields::DesignSupplyAirFlowRate);
  if( optionalString && istringEqual(optionalString.get(),"AutoSize") )
  {
    airLoopHVAC.autosizeDesignSupplyAirFlowRate();
  }
  else if( (val = workspaceObject.getDouble(AirLoopHVACFields::DesignSupplyAirFlowRate)) )
  {
    airLoopHVAC.setDesignSupplyAirFlowRate(val.get());
  }

  // Go find the supply branch.
  // Currently only supporting one supply branch.
  // Dual ducts are not supported.
  OptionalWorkspaceObject _supplyBranchList;
  OptionalWorkspaceObject _supplyBranch;

  _supplyBranchList = workspaceObject.getTarget(AirLoopHVACFields::BranchListName);
  if( _supplyBranchList )
  {
    _supplyBranch = _supplyBranchList->getExtensibleGroup(0).cast<WorkspaceExtensibleGroup>().getTarget(BranchListExtensibleFields::BranchName);
    if( ! _supplyBranch )
    {
      LOG(Error, _supplyBranchList->briefDescription() << ": Missing supply branch");
    }
    else
    {
      // March through the equipment on the supply branch and convert them.
      for( unsigned i = 0; ! _supplyBranch->getExtensibleGroup(i).empty(); i++ )
      {
        WorkspaceExtensibleGroup eg = _supplyBranch->getExtensibleGroup(i).cast<WorkspaceExtensibleGroup>();
        boost::optional<std::string> componentName = eg.getString(BranchExtensibleFields::ComponentName);
        boost::optional<std::string> componentType = eg.getString(BranchExtensibleFields::ComponentObjectType);
        boost::optional<std::string> componentInletNodeName = eg.getString(BranchExtensibleFields::ComponentInletNodeName);
        boost::optional<std::string> componentOutletNodeName = eg.getString(BranchExtensibleFields::ComponentOutletNodeName);
        boost::optional<WorkspaceObject> wo;
        OptionalNode node;
        OptionalModelObject targetModelObject;

        if( componentName && (componentName.get() != "") && componentType && (componentType.get() != "") )
        {
          IddObjectType iddType(componentType.get());
          wo = _workspace.getObjectByTypeAndName(iddType,componentName.get());
        }

        if( wo )
        {
          targetModelObject = translateAndMapWorkspaceObject( wo.get() );
          if( !targetModelObject)
          {
            LOG(Error, "Error importing object: " << wo->briefDescription() );
            continue;
          }

          if( OptionalHVACComponent hvacComponent = targetModelObject->optionalCast<HVACComponent>() )
          {
            Node node = airLoopHVAC.supplyOutletNode();
            if( hvacComponent->addToNode(node) )
            {
              if( boost::optional<StraightComponent> straightComponent = hvacComponent->optionalCast<StraightComponent>() )
              {
                Node outletNode = straightComponent->outletModelObject()->cast<Node>();
                Node inletNode = straightComponent->inletModelObject()->cast<Node>();
                if( componentOutletNodeName )
                {
                  outletNode.setName(componentOutletNodeName.get());
                }
                if( componentInletNodeName )
                {
                  inletNode.setName(componentInletNodeName.get());
                }
              }
              else if( boost::optional<AirLoopHVACOutdoorAirSystem> oaSystem = hvacComponent->optionalCast<AirLoopHVACOutdoorAirSystem>() )
              {
                Node outletNode = oaSystem->mixedAirModelObject()->cast<Node>();
                Node inletNode = oaSystem->returnAirModelObject()->cast<Node>();
                if( componentOutletNodeName )
                {
                  outletNode.setName(componentOutletNodeName.get());
                }
                if( componentInletNodeName )
                {
                  inletNode.setName(componentInletNodeName.get());
                }
              }
            }
          }
        }
        else
        {
          LOG(Error, _supplyBranch->briefDescription() << ": Missing object listed at ComponentName " << i);
        }
      }
    }
  }
  else
  {
    LOG( Error, workspaceObject.briefDescription() << ": Missing supply branch list, "
              << "Supply equipment will be incomplete");
  }

  // March through the zone on the demand side and add branches for them.
  if( demandOutletNodeName )
  {
    // Find the zone mixer for this air loop
    std::vector<WorkspaceObject> _airLoopHVACZoneMixers;
    _airLoopHVACZoneMixers = workspaceObject.workspace().getObjectsByType(IddObjectType::AirLoopHVAC_ZoneMixer);

    boost::optional<WorkspaceObject> _airLoopHVACZoneMixer;
    for( const auto & elem : _airLoopHVACZoneMixers )
    {
      boost::optional<std::string> mixerOutletNodeName;
      mixerOutletNodeName = elem.getString(AirLoopHVAC_ZoneMixerFields::OutletNodeName);

      if( mixerOutletNodeName && mixerOutletNodeName.get() == demandOutletNodeName.get() )
      {
        _airLoopHVACZoneMixer = elem;
        break;
      }
    }
    if( _airLoopHVACZoneMixer )
    {
      for( int i = 2;
           _airLoopHVACZoneMixer->getString(i);
           i++ )
      {

        std::vector<WorkspaceObject> _zoneHVACEquipmentConnections;

        std::string mixerInletNodeName = _airLoopHVACZoneMixer->getString(i).get();

        _zoneHVACEquipmentConnections = _workspace.getObjectsByType(IddObjectType::ZoneHVAC_EquipmentConnections);

        for( const auto & _zoneHVACEquipmentConnection : _zoneHVACEquipmentConnections )
        {

          OptionalString returnAirNodeName = _zoneHVACEquipmentConnection.getString(ZoneHVAC_EquipmentConnectionsFields::ZoneReturnAirNodeName);
          OptionalString inletAirNodeName = _zoneHVACEquipmentConnection.getString(ZoneHVAC_EquipmentConnectionsFields::ZoneAirInletNodeorNodeListName);
          OptionalString zoneName = _zoneHVACEquipmentConnection.getString(ZoneHVAC_EquipmentConnectionsFields::ZoneName);
          OptionalString zoneEquipListName = _zoneHVACEquipmentConnection.getString(ZoneHVAC_EquipmentConnectionsFields::ZoneConditioningEquipmentListName);

          OptionalWorkspaceObject _zone;
          OptionalWorkspaceObject _zoneEquipmentList;
          OptionalWorkspaceObject _zoneEquipment;
          OptionalWorkspaceObject _airTerminal; 

          if( returnAirNodeName &&
              returnAirNodeName.get() == mixerInletNodeName &&
              zoneName &&
              zoneEquipListName )
          {
            _zone = _workspace.getObjectByTypeAndName(IddObjectType::Zone,*zoneName);

            _zoneEquipmentList = _workspace.getObjectByTypeAndName(IddObjectType::ZoneHVAC_EquipmentList,zoneEquipListName.get());

            if( ! _zone )
            {
              LOG( Error, 
                  airLoopHVAC.briefDescription()
                  << " is connected to a zone that does not exist." );

              break;
            }

            if( ! _zoneEquipmentList )
            {
              LOG( Error, 
                  _zone->briefDescription()
                  << " does not have a zone equipment list, but it is attached to a loop." );

              break;
            }

            for( int j = 1; (optionalString = _zoneEquipmentList->getString(j)); j = j + 4 )
            {
              boost::optional<std::string> zoneEquipmentName = _zoneEquipmentList->getString(j+1) ;
              // Possible Zone Equipment
              //
              // ZoneHVAC:AirDistributionUnit
              // AirTerminal:SingleDuct:Uncontrolled
              // ZoneHVAC:EnergyRecoveryVentilator
              // ZoneHVAC:FourPipeFanCoil
              // ZoneHVAC:OutdoorAirUnit
              // ZoneHVAC:PackagedTerminalAirConditioner
              // ZoneHVAC:PackagedTerminalHeatPump
              // ZoneHVAC:UnitHeater
              // ZoneHVAC:UnitVentilator
              // ZoneHVAC:VentilatedSlab
              // ZoneHVAC:WaterToAirHeatPump
              // ZoneHVAC:WindowAirConditioner
              // ZoneHVAC:Baseboard:RadiantConvective:Electric
              // ZoneHVAC:Baseboard:RadiantConvective:Water
              // ZoneHVAC:Baseboard:RadiantConvective:Steam
              // ZoneHVAC:Baseboard:Convective:Electric
              // ZoneHVAC:Baseboard:Convective:Water
              // ZoneHVAC:HighTemperatureRadiant
              // ZoneHVAC:LowTemperatureRadiant:VariableFlow
              // ZoneHVAC:LowTemperatureRadiant:ConstantFlow
              // ZoneHVAC:LowTemperatureRadiant:Electric
              // ZoneHVAC:Dehumidifier:DX
              // ZoneHVAC:IdealLoadsAirSystem
              // Fan:ZoneExhaust
              // WaterHeater:HeatPump
              //
              if( zoneEquipmentName )
              {
                if( istringEqual(optionalString.get(),"AirTerminal:SingleDuct:Uncontrolled") )
                {
                  _airTerminal = _workspace.getObjectByTypeAndName(IddObjectType::AirTerminal_SingleDuct_Uncontrolled,zoneEquipmentName.get());

                  break;
                }
                else if( istringEqual(optionalString.get(),"ZoneHVAC:AirDistributionUnit") )
                {
                  boost::optional<WorkspaceObject> _airDistributionUnit = 
                    _workspace.getObjectByTypeAndName(IddObjectType::ZoneHVAC_AirDistributionUnit,zoneEquipmentName.get());

                  if( _airDistributionUnit )
                  {
                    boost::optional<std::string> airUnitName;
                    boost::optional<std::string> airUnitType;

                    airUnitType = _airDistributionUnit->getString(ZoneHVAC_AirDistributionUnitFields::AirTerminalObjectType);
                    airUnitName = _airDistributionUnit->getString(ZoneHVAC_AirDistributionUnitFields::AirTerminalName);

                    if( airUnitName && airUnitType )
                    {
                      _airTerminal = _workspace.getObjectByTypeAndName(IddObjectType(airUnitType.get()),airUnitName.get());
                    }
                  }

                  break;
                }
              }
            }

            OptionalModelObject airTerminalModelObject;
            OptionalSpace space;
            OptionalStraightComponent straightComponent;
            OptionalThermalZone thermalZone;

            if( _airTerminal )
            {
              airTerminalModelObject = translateAndMapWorkspaceObject( _airTerminal.get() );
            }

            if( _zone )
            {
              if( OptionalModelObject mo = translateAndMapWorkspaceObject( _zone.get() ) )
              {
                space = mo->optionalCast<Space>();
              }
            }

            if( space )
            {
              thermalZone = space->thermalZone();
            }

            if( airTerminalModelObject )
            {
              straightComponent = airTerminalModelObject->optionalCast<StraightComponent>();
            }

            bool success = false;

            if( straightComponent && thermalZone )
            {
              success = airLoopHVAC.addBranchForZone(thermalZone.get(),straightComponent.get());
            }
            else if( thermalZone )
            {
              Model m;

              success = airLoopHVAC.addBranchForZone(thermalZone.get(),boost::none);
            }

            if( success )
            {
              if( inletAirNodeName ) { thermalZone->inletPortList().airLoopHVACModelObject()->cast<Node>().setName(inletAirNodeName.get()); }
              if( returnAirNodeName ) { thermalZone->returnAirModelObject()->cast<Node>().setName(returnAirNodeName.get()); }
            }
          }
        }
      }
    }
  }

  return airLoopHVAC;
}