Blame view

src/dcxmldal.cpp 2.15 KB
30448f62   Peter M. Groen   Replace Qt with s...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
  #include "dcxmldal.h"
  #include "dcxmlconfig.h"
  
  using namespace osdev::components;
  
  static const char* selectFunctions          = "selectFunctions";        // return all functions
  static const char* selectFunctionByName     = "selectFunction";         // return function by command name
  
  // The only instance of the singleton Dal Config Parser.
  std::unique_ptr<DcXmlDal>  DcXmlDal::s_instance( nullptr );
  
  DcXmlDal& DcXmlDal::Instance()
  {
      if( nullptr == s_instance )
      {
          s_instance = std::unique_ptr<DcXmlDal>( new DcXmlDal( DCXmlConfig::Instance().getDalConfig() ) );
      }
  
      return *s_instance;
  }
  
  DcXmlDal::DcXmlDal( const QString &fileName )
  {
      if( !fileName.isEmpty() )
      {
          if( !loadConfiguration( fileName ) )
          {
              LogWarning( "[DcXmlDal::DcXmlDal]", QString( "There was an error reading file : %1" ).arg( fileName ) );
          }
      }
      else
      {
          LogWarning( "[DcXmlDal::DcXmlDal]", QString( "No filename given. No configuration read." ) );
      }
  
      constructXPathHash();
  }
  
  DcXmlDal::~DcXmlDal()
  {
  }
  
  bool DcXmlDal::loadConfiguration( const QString &fileName )
  {
      return loadConfiguration( DCXmlConfig::Instance().getConfigPath(), fileName );
  }
  
  bool DcXmlDal::loadConfiguration( const QString &configDir, const QString &fileName )
  {
      return DcXmlBase::parseFile( configDir + fileName );
  }
  
  void DcXmlDal::constructXPathHash()
  {
      DcXmlBase::addXPath( selectFunctions        , "//data_access/functions/function" );
      DcXmlBase::addXPath( selectFunctionByName   , "//data_access/functions/function[@name='%1']" );
  }
  
  QStringList DcXmlDal::getQueries() const
  {
      QStringList lstResult;
  
      QList<pugi::xpath_node> functionList = DcXmlBase::selectNodes(  DcXmlBase::getXPath( selectFunctions ) );
      for( const auto& nodeItem : functionList )
      {
          lstResult.append( nodeItem.node().attribute( "name" ).value() );
      }
  
      return lstResult;
  }
  
  QString DcXmlDal::getQueryByName( const QString &_queryName ) const
  {
      QList<QVariant> varList;
      varList.append( _queryName );
  
      return QString( DcXmlBase::selectNode( evaluateXPath( selectFunctionByName, varList ) ).node().attribute( "value" ).value() );
  }