SqliteReadSvc Class Reference

SqliteReadSvc implementats IRDBAccessSvc interface for reading plain tables in the Geometry SQLite database. More...

#include <SqliteReadSvc.h>

Inheritance diagram for SqliteReadSvc:

Collaboration diagram for SqliteReadSvc:

Public Member Functions
	SqliteReadSvc (const std::string &name, ISvcLocator *svc)
	Standard Service Constructor.
StatusCode	finalize () override
bool	connect (std::string_view connName) override
	Open the SQLite database This method has no effect if the connection has already been opened.
bool	disconnect (std::string_view connName) override
	Dummy overrider of the virtual function.
bool	shutdown (std::string_view connName) override
	Closes the database connection.
IRDBRecordset_ptr	getRecordsetPtr (std::string_view node, std::string_view tag, std::string_view tag2node, std::string_view connName) override
	Provides access to the Recordset object containing HVS-tagged data.
std::string	getChildTag (const std::string &childNode, const std::string &, const std::string &, const std::string &) override
	Dummy overrider of the virtual function.
std::unique_ptr< IRDBQuery >	getQuery (const std::string &node, const std::string &, const std::string &, const std::string &) override
	Dummy overrider of the virtual function (for now).
void	getTagDetails (RDBTagDetails &tagDetails, const std::string &tag, const std::string &) override
	Dummy overrider of the virtual function.

Private Attributes
RecordsetPtrMap	m_recordsets
sqlite3 *	m_db {nullptr}
std::mutex	m_sessionMutex

Detailed Description

SqliteReadSvc implementats IRDBAccessSvc interface for reading plain tables in the Geometry SQLite database.

Definition at line 40 of file SqliteReadSvc.h.

Constructor & Destructor Documentation

SqliteReadSvc()

SqliteReadSvc::SqliteReadSvc	(	const std::string &	name,
		ISvcLocator *	svc )

Standard Service Constructor.

Definition at line 19 of file SqliteReadSvc.cxx.

  : base_class(name,svc)
{
}

Member Function Documentation

connect()

bool SqliteReadSvc::connect ( std::string_view connName )

override

Open the SQLite database This method has no effect if the connection has already been opened.

Parameters

connName

[IN] path to the SQLite database file

Returns

success/failure

Definition at line 32 of file SqliteReadSvc.cxx.

{
  std::lock_guard<std::mutex> guard(m_sessionMutex);
  const std::string connNameStr{connName};
  if(!m_db) {
    int res = sqlite3_open(connNameStr.c_str(), &m_db);
    if (res != SQLITE_OK) {
      ATH_MSG_FATAL("Failed to open " << connName << ". " << sqlite3_errmsg(m_db));
      return false;
    }
  }
  return true;
}

disconnect()

bool SqliteReadSvc::disconnect ( std::string_view connName )

override

Dummy overrider of the virtual function.

Returns

success/failure

Definition at line 46 of file SqliteReadSvc.cxx.

{
  // Dummy implementation
  return true;
}

finalize()

StatusCode SqliteReadSvc::finalize ( )

override

Definition at line 24 of file SqliteReadSvc.cxx.

{
  m_recordsets.clear();
  shutdown("");
 
  return StatusCode::SUCCESS;
}

getChildTag()

std::string SqliteReadSvc::getChildTag ( const std::string & childNode, const std::string & parentTag, const std::string & parentNode, const std::string &  )

override

Dummy overrider of the virtual function.

Parameters

childNode

[IN] the name of the table

Returns

the name of the table if exists, otherwise an empty string

Definition at line 100 of file SqliteReadSvc.cxx.

{
  ATH_MSG_DEBUG("getChildTag for " << childNode << " " << parentTag << " " << parentNode);
  ATH_MSG_WARNING("SqliteReadSvc::getChildTag is a dummy method");
  return std::string();
}

getQuery()

std::unique_ptr< IRDBQuery > SqliteReadSvc::getQuery ( const std::string & node, const std::string & tag, const std::string & tag2node, const std::string & connName )

override

Dummy overrider of the virtual function (for now).

Definition at line 89 of file SqliteReadSvc.cxx.

{
  ATH_MSG_DEBUG("getQuery (" << node << "," << tag << "," << tag2node << "," << connName << ")");
  ATH_MSG_WARNING("SqliteReadSvc::getQuery is a dummy method");
 
  return std::unique_ptr<IRDBQuery>();
}

getRecordsetPtr()

IRDBRecordset_ptr SqliteReadSvc::getRecordsetPtr ( std::string_view node, std::string_view tag, std::string_view tag2node, std::string_view connName )

override

Provides access to the Recordset object containing HVS-tagged data.

Parameters

node	[IN] name of the table. Other input parameters are dummy

Returns

pointer to the recordset object

Definition at line 63 of file SqliteReadSvc.cxx.

{
  ATH_MSG_DEBUG("Getting RecordsetPtr with key " << node);
 
  std::lock_guard<std::mutex> guard(m_sessionMutex);
  if(!m_db) {
    ATH_MSG_ERROR("Connection to the SQLite database not open. Returning empty recordset");
    return IRDBRecordset_ptr(new SqliteRecordset());
  }
 
  auto itRecordset = m_recordsets.find(node);
  if(itRecordset!=m_recordsets.end()) {
    ATH_MSG_DEBUG("Reusing an existing recordset");
    return itRecordset->second;
  }
  const std::string nodeStr{node};
  SqliteRecordset* recConcrete = new SqliteRecordset();
  recConcrete->getData(m_db,nodeStr);
  IRDBRecordset_ptr rec(recConcrete);
  m_recordsets.emplace(nodeStr,rec);
  return rec;
}

getTagDetails()

void SqliteReadSvc::getTagDetails ( RDBTagDetails & tagDetails, const std::string & tag, const std::string &  )

override

Dummy overrider of the virtual function.

Definition at line 110 of file SqliteReadSvc.cxx.

{
  ATH_MSG_DEBUG("getTagDetails for tag: " << tag);
  ATH_MSG_WARNING("SqliteReadSvc::getTagDetails is a dummy method");
  return;
}

shutdown()

bool SqliteReadSvc::shutdown ( std::string_view connName )

override

Closes the database connection.

Returns

success/failure

Definition at line 52 of file SqliteReadSvc.cxx.

{
  std::lock_guard<std::mutex> guard(m_sessionMutex);
  if(m_db) {
    sqlite3_close(m_db);
    m_db = nullptr;
  }
  return true;
}

Member Data Documentation

m_db

sqlite3* SqliteReadSvc::m_db {nullptr}

private

Definition at line 91 of file SqliteReadSvc.h.

{nullptr};

m_recordsets

RecordsetPtrMap SqliteReadSvc::m_recordsets

private

Definition at line 90 of file SqliteReadSvc.h.

m_sessionMutex

std::mutex SqliteReadSvc::m_sessionMutex

private

Definition at line 92 of file SqliteReadSvc.h.

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The documentation for this class was generated from the following files:

• SqliteReadSvc.h
• SqliteReadSvc.cxx