SimpleView.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#include <stdexcept>
#include "AthViews/SimpleView.h"
#include "AthViews/View.h"
#include "SGTools/transientKey.h"
 
SimpleView::SimpleView( std::string const& Name, bool AllowFallThrough, std::string const& storeName ) :
  m_store( storeName, Name ),
  m_roi(),
  m_name( Name ),
  m_allowFallThrough( AllowFallThrough )
{
}
 
SimpleView::~SimpleView()
{
}
 
 
std::string SimpleView::viewKey (const std::string& key) const
{
  return SG::transientKey (m_name + "_" + key);
}
 
 
void SimpleView::linkParent( const IProxyDict* parent ) {
  auto castParent = dynamic_cast< const SG::View* >( parent );
  if ( castParent ) {
    m_parents.insert( castParent );
  }
  else {
    throw std::runtime_error( "Unable to link parent view that cannot be cast to SG::View" );
  }
}
 
 
SG::DataProxy * SimpleView::proxy_exact( SG::sgkey_t /*sgkey*/ ) const
{
  return nullptr;
}
 
 
SG::DataProxy * SimpleView::proxy( const CLID& id, const std::string& key ) const
{
  return findProxy( id, key, m_allowFallThrough );
}
 
SG::DataProxy * SimpleView::findProxy( const CLID& id, const std::string& key, const bool allowFallThrough ) const
{
  auto isValid = [](const SG::DataProxy* p) { return p != nullptr and p->isValid(); };
  auto localProxy = m_store->proxy( id, viewKey(key) );
  if ( isValid( localProxy ) ) {
    return localProxy;
  }
 
  for ( auto parent: m_parents ) {
    // Don't allow parents to access whole-event store independently of this view
    auto inParentProxy = parent->impl()->findProxy( id, key, false );
    if ( isValid( inParentProxy ) ) {
      return inParentProxy;
    }
  }
  
  //Look in the default store if cound not find in any view - for instance for event-wise IDCs
  if ( (not isValid( localProxy )) and allowFallThrough ) {
 
    //Apply filtering
    if ( m_fallFilter.size() ) {
      bool filterPass = false;
 
      //Filter passes if the key contains one of the possible values
      for ( auto& entry : m_fallFilter ) {
        if ( key.find( entry ) != std::string::npos ) {
          filterPass = true;
          break;
        }
      }
 
      if ( !filterPass ) return nullptr;
    }
 
    return m_store->proxy( id, key );
  }
  return nullptr;
}
 
 
SG::DataProxy * SimpleView::proxy( const void* const pTransient ) const
{
  return m_store->proxy( pTransient );
}
 
 
std::vector< const SG::DataProxy* > SimpleView::proxies() const
{
  return m_store->proxies();
}
 
 
StatusCode SimpleView::addToStore( CLID id, SG::DataProxy * proxy )
{
  return m_store->addToStore( id, proxy );
}
 
 
bool SimpleView::tryELRemap( sgkey_t sgkey_in, size_t index_in, sgkey_t & sgkey_out, size_t & index_out )
{
  throw std::runtime_error( "Not implemented: SimpleView::tryELRemap" );
  return m_store->tryELRemap( sgkey_in, index_in, sgkey_out, index_out );
}
 
SG::DataProxy * SimpleView::recordObject( SG::DataObjectSharedPtr<DataObject> obj, const std::string& key, bool allowMods, bool returnExisting )
{
  return m_store->recordObject( obj, viewKey(key), allowMods, returnExisting );
}
 
void SimpleView::boundHandle( IResetable * handle )
{
  return m_store->boundHandle( handle );
}
 
void SimpleView::unboundHandle( IResetable * handle )
{
  return m_store->unboundHandle( handle );
}
 
const std::string& SimpleView::name() const
{
  return m_name;
}
 
//IStringPool
IStringPool::sgkey_t SimpleView::stringToKey( const std::string& str, CLID clid )
{
  return m_store->stringToKey( viewKey(str), clid );
}
const std::string* SimpleView::keyToString( IStringPool::sgkey_t key ) const
{
  throw std::runtime_error( "Not implemented: SimpleView::keyToString" );
  return m_store->keyToString( key );
}
const std::string* SimpleView::keyToString( IStringPool::sgkey_t key, CLID& clid ) const
{
  throw std::runtime_error( "Not implemented: SimpleView::keyToString" );
  return m_store->keyToString( key, clid );
}
void SimpleView::registerKey( IStringPool::sgkey_t key, const std::string& str, CLID clid )
{
    m_store->registerKey( key, viewKey(str), clid );
}
 
void SimpleView::setROI(const ElementLink<TrigRoiDescriptorCollection>& roi) {
  m_roi = roi;
}
 
const ElementLink<TrigRoiDescriptorCollection>& SimpleView::getROI() const {
  return m_roi;
}
 
std::string SimpleView::dump( const std::string& indent ) const {
 
  // Dump view contents
  std::string ret = indent + "Dump " + name() + "\n";
  ret += indent + "[";
  for ( const SG::DataProxy* dp: proxies() ) {
    if ( dp->name().find( name() ) == 0 ) 
      ret += " " + dp->name();
  }
  ret += " ]\n";
 
  // Dump parent views
  if ( m_parents.size() ) ret += indent + "Parents:\n";
  for ( auto p : m_parents ) {
    ret += p->dump( indent + "  " );
  }
 
  // Fallthrough
  if ( indent == "" ) {
    if ( m_allowFallThrough ) {
      ret += indent + "May access main store: " + m_store->name();
    } else {
      ret += indent + "May not access main store";
    }
  }
  return ret;
}