EcalCondDB/src/ODDCUConfig.cc

0001 #include <stdexcept>
0002 #include <string>
0003 #include "OnlineDB/Oracle/interface/Oracle.h"
0004
0005 #include "OnlineDB/EcalCondDB/interface/ODDCUConfig.h"
0006
0007 using namespace std;
0008 using namespace oracle::occi;
0009
0010 ODDCUConfig::ODDCUConfig() {
0011   m_env = nullptr;
0012   m_conn = nullptr;
0013   m_writeStmt = nullptr;
0014   m_readStmt = nullptr;
0015   m_config_tag = "";
0016   m_ID = 0;
0017   clear();
0018 }
0019
0020 void ODDCUConfig::clear() {}
0021
0022 ODDCUConfig::~ODDCUConfig() {}
0023
0024 void ODDCUConfig::setParameters(const std::map<string, string>& my_keys_map) {
0025   // parses the result of the XML parser that is a map of
0026   // string string with variable name variable value
0027
0028   for (std::map<std::string, std::string>::const_iterator ci = my_keys_map.begin(); ci != my_keys_map.end(); ci++) {
0029     if (ci->first == "DCU_CONFIGURATION_ID")
0030       setConfigTag(ci->second);
0031   }
0032 }
0033
0034 int ODDCUConfig::fetchNextId() noexcept(false) {
0035   int result = 0;
0036   try {
0037     this->checkConnection();
0038
0039     m_readStmt = m_conn->createStatement();
0040     m_readStmt->setSQL("select ecal_dcu_config_sq.NextVal from dual");
0041     ResultSet* rset = m_readStmt->executeQuery();
0042     while (rset->next()) {
0043       result = rset->getInt(1);
0044     }
0045     m_conn->terminateStatement(m_readStmt);
0046     return result;
0047
0048   } catch (SQLException& e) {
0049     throw(std::runtime_error(std::string("ODDCUConfig::fetchNextId():  ") + e.getMessage()));
0050   }
0051 }
0052
0053 void ODDCUConfig::prepareWrite() noexcept(false) {
0054   this->checkConnection();
0055   int next_id = fetchNextId();
0056
0057   try {
0058     m_writeStmt = m_conn->createStatement();
0059     m_writeStmt->setSQL(
0060         "INSERT INTO ECAL_DCU_CONFIGURATION ( dcu_configuration_id, dcu_tag ) "
0061         "VALUES (  "
0062         ":1, :2 )");
0063     m_writeStmt->setInt(1, next_id);
0064     m_ID = next_id;
0065
0066   } catch (SQLException& e) {
0067     throw(std::runtime_error(std::string("ODDCUConfig::prepareWrite():  ") + e.getMessage()));
0068   }
0069 }
0070
0071 void ODDCUConfig::writeDB() noexcept(false) {
0072   this->checkConnection();
0073   this->checkPrepare();
0074
0075   try {
0076     m_writeStmt->setString(2, this->getConfigTag());
0077
0078     m_writeStmt->executeUpdate();
0079
0080   } catch (SQLException& e) {
0081     throw(std::runtime_error(std::string("ODDCUConfig::writeDB():  ") + e.getMessage()));
0082   }
0083   // Now get the ID
0084   if (!this->fetchID()) {
0085     throw(std::runtime_error("ODDCUConfig::writeDB:  Failed to write"));
0086   }
0087 }
0088
0089 void ODDCUConfig::fetchData(ODDCUConfig* result) noexcept(false) {
0090   this->checkConnection();
0091   result->clear();
0092   if (result->getId() == 0 && (result->getConfigTag().empty())) {
0093     throw(std::runtime_error("ODDCUConfig::fetchData(): no Id defined for this ODDCUConfig "));
0094   }
0095
0096   try {
0097     m_readStmt->setSQL(
0098         "SELECT * "
0099         "FROM ECAL_DCU_CONFIGURATION  "
0100         " where ( dcu_configuration_id = :1 or dcu_tag=:2 ) ");
0101     m_readStmt->setInt(1, result->getId());
0102     m_readStmt->setString(2, result->getConfigTag());
0103     ResultSet* rset = m_readStmt->executeQuery();
0104
0105     rset->next();
0106     // 1 is the id and 2 is the config tag
0107     result->setId(rset->getInt(1));
0108     result->setConfigTag(rset->getString(2));
0109
0110   } catch (SQLException& e) {
0111     throw(std::runtime_error(std::string("ODDCUConfig::fetchData():  ") + e.getMessage()));
0112   }
0113 }
0114
0115 int ODDCUConfig::fetchID() noexcept(false) {
0116   // Return from memory if available
0117   if (m_ID != 0) {
0118     return m_ID;
0119   }
0120
0121   this->checkConnection();
0122
0123   try {
0124     Statement* stmt = m_conn->createStatement();
0125     stmt->setSQL(
0126         "SELECT dcu_configuration_id FROM ecal_dcu_configuration "
0127         "WHERE  dcu_tag=:dcu_tag  ");
0128
0129     stmt->setString(1, getConfigTag());
0130
0131     ResultSet* rset = stmt->executeQuery();
0132
0133     if (rset->next()) {
0134       m_ID = rset->getInt(1);
0135     } else {
0136       m_ID = 0;
0137     }
0138     m_conn->terminateStatement(stmt);
0139   } catch (SQLException& e) {
0140     throw(std::runtime_error(std::string("ODDCUConfig::fetchID:  ") + e.getMessage()));
0141   }
0142
0143   return m_ID;
0144 }