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ODTTCFConfig.cc

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#include <stdexcept>
#include <string>
#include "OnlineDB/Oracle/interface/Oracle.h"

#include "OnlineDB/EcalCondDB/interface/ODTTCFConfig.h"

using namespace std;
using namespace oracle::occi;

ODTTCFConfig::ODTTCFConfig()
{
  m_env = NULL;
  m_conn = NULL;
  m_writeStmt = NULL;
  m_readStmt = NULL;
  m_config_tag="";
  m_ID=0;
  clear();
  m_size=0;
}


void ODTTCFConfig::clear(){

}


ODTTCFConfig::~ODTTCFConfig()
{
}

int ODTTCFConfig::fetchNextId()  throw(std::runtime_error) {

  int result=0;
  try {
    this->checkConnection();
    std::cout<< "going to fetch new id for TTCF 1"<<endl;
    m_readStmt = m_conn->createStatement(); 
    m_readStmt->setSQL("select ecal_ttcf_config_sq.NextVal from dual");
    ResultSet* rset = m_readStmt->executeQuery();
    while (rset->next ()){
      result= rset->getInt(1);
    }
    std::cout<< "id is : "<< result<<endl;

    m_conn->terminateStatement(m_readStmt);
    return result; 

  } catch (SQLException &e) {
    throw(runtime_error("ODTTCFConfig::fetchNextId():  "+e.getMessage()));
  }

}




void ODTTCFConfig::prepareWrite()
  throw(runtime_error)
{
  this->checkConnection();
  int next_id=fetchNextId();

  try {
    m_writeStmt = m_conn->createStatement();
    m_writeStmt->setSQL("INSERT INTO ECAL_TTCF_CONFIGURATION (ttcf_configuration_id, ttcf_tag, " 
                        " ttcf_configuration_file , configuration ) "
                        "VALUES (:1, :2, :3 , :4 )");
    m_writeStmt->setInt(1, next_id);
    m_writeStmt->setString(2, getConfigTag());
    m_writeStmt->setString(3, getTTCFConfigurationFile());

    oracle::occi::Clob clob(m_conn);
    clob.setEmpty();
    m_writeStmt->setClob(4,clob);
    m_writeStmt->executeUpdate ();
    m_ID=next_id; 

    m_conn->terminateStatement(m_writeStmt);
    std::cout<<"inserted into CONFIGURATION with id="<<next_id<<std::endl;

    // now we read and update it 
    m_writeStmt = m_conn->createStatement(); 
    m_writeStmt->setSQL ("SELECT configuration FROM ECAL_TTCF_CONFIGURATION WHERE"
                         " ttcf_configuration_id=:1 FOR UPDATE");

  std::cout<<"updating the clob 0"<<std::endl;


  } catch (SQLException &e) {
    throw(runtime_error("ODTTCFConfig::prepareWrite():  "+e.getMessage()));
  }

  std::cout<<"updating the clob 1 "<<std::endl;

}

void ODTTCFConfig::writeDB()
  throw(runtime_error)
{

  std::cout<<"updating the clob 2"<<std::endl;

  try {
    m_writeStmt->setInt(1, m_ID);
    ResultSet* rset = m_writeStmt->executeQuery();

    rset->next ();

    oracle::occi::Clob clob = rset->getClob (1);
    cout << "Opening the clob in read write mode" << endl;
    populateClob (clob, getTTCFConfigurationFile(), m_size);
    int clobLength=clob.length ();
    cout << "Length of the clob is: " << clobLength << endl;

    m_writeStmt->executeUpdate();
    m_writeStmt->closeResultSet (rset);

  } catch (SQLException &e) {
    throw(runtime_error("ODTTCFConfig::writeDB():  "+e.getMessage()));
  }
  // Now get the ID
  if (!this->fetchID()) {
    throw(runtime_error("ODTTCFConfig::writeDB:  Failed to write"));
  }


}




void ODTTCFConfig::fetchData(ODTTCFConfig * result)
  throw(runtime_error)
{
  this->checkConnection();
  result->clear();

  if(result->getId()==0 && (result->getConfigTag()=="") ){
    throw(runtime_error("ODTTCFConfig::fetchData(): no Id defined for this ODTTCFConfig "));
  }

  try {

    m_readStmt->setSQL("SELECT *   "
                       "FROM ECAL_TTCF_CONFIGURATION  "
                       " where (ttcf_configuration_id = :1 or ttcf_tag= :2) " );
    m_readStmt->setInt(1, result->getId());
    m_readStmt->setString(2, result->getConfigTag());
    ResultSet* rset = m_readStmt->executeQuery();

    rset->next();

    result->setId(rset->getInt(1));
    result->setConfigTag(rset->getString(2));
    result->setTTCFConfigurationFile(rset->getString(3));
    Clob clob = rset->getClob (4);
    cout << "Opening the clob in Read only mode" << endl;
    clob.open (OCCI_LOB_READONLY);
    int clobLength=clob.length ();
    cout << "Length of the clob is: " << clobLength << endl;
    m_size=clobLength;
    unsigned char* buffer = readClob (clob, m_size);
    clob.close ();
    result->setTTCFClob((unsigned char*) buffer );

  } catch (SQLException &e) {
    throw(runtime_error("ODTTCFConfig::fetchData():  "+e.getMessage()));
  }
}



int ODTTCFConfig::fetchID()    throw(std::runtime_error)
{
  if (m_ID!=0) {
    return m_ID;
  }

  this->checkConnection();

  try {
    Statement* stmt = m_conn->createStatement();
    stmt->setSQL("SELECT ttcf_configuration_id FROM ecal_ttcf_configuration "
                 "WHERE  ttcf_tag=:ttcf_tag "
                 );

    stmt->setString(1, getConfigTag() );

    ResultSet* rset = stmt->executeQuery();

    if (rset->next()) {
      m_ID = rset->getInt(1);
    } else {
      m_ID = 0;
    }
    m_conn->terminateStatement(stmt);
  } catch (SQLException &e) {
    throw(runtime_error("ODTTCFConfig::fetchID:  "+e.getMessage()));
  }

    return m_ID;
}

void ODTTCFConfig::setParameters(std::map<string,string> my_keys_map){

  // parses the result of the XML parser that is a map of
  // string string with variable name variable value

  for( std::map<std::string, std::string >::iterator ci=
         my_keys_map.begin(); ci!=my_keys_map.end(); ci++ ) {

    if(ci->first==  "TTCF_CONFIGURATION_ID") setConfigTag(ci->second);
    if(ci->first==  "Configuration") {
      std::string fname=ci->second ;
      string  str3;
      size_t pos, pose;

      pos = fname.find("=");    // position of "live" in str
      pose = fname.size();    // position of "]" in str
      str3 = fname.substr (pos+1, pose-pos-2);

      cout << "fname="<<fname<< " and reduced is: "<<str3 << endl;
      setTTCFConfigurationFile(str3 );


      // here we must open the file and read the LTC Clob
      std::cout << "Going to read file: " << str3 << endl;

      ifstream inpFile;
      inpFile.open(str3.c_str());

      // tell me size of file
      int bufsize = 0;
      inpFile.seekg( 0,ios::end );
      bufsize = inpFile.tellg();
      std::cout <<" bufsize ="<<bufsize<< std::endl;
      // set file pointer to start again
      inpFile.seekg( 0,ios::beg );

      inpFile.close();
      m_size=bufsize;

    }
  }

}

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