stoc/source/tdmanager/tdmgr_tdenumeration.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_stoc.hxx"
  33 #include <osl/diagnose.h>
  34 #include "tdmgr_common.hxx"
  35 #include "tdmgr_tdenumeration.hxx"
  36
  37 using namespace com::sun::star;
  38
  39 extern rtl_StandardModuleCount g_moduleCount;
  40
  41 namespace stoc_tdmgr
  42 {
  43
  44 //=========================================================================
  45 //=========================================================================
  46 //
  47 // TypeDescriptionEnumerationImpl Implementation.
  48 //
  49 //=========================================================================
  50 //=========================================================================
  51
  52 TypeDescriptionEnumerationImpl::TypeDescriptionEnumerationImpl(
  53         const rtl::OUString & rModuleName,
  54         const com::sun::star::uno::Sequence<
  55             com::sun::star::uno::TypeClass > & rTypes,
  56         com::sun::star::reflection::TypeDescriptionSearchDepth eDepth,
  57         const TDEnumerationAccessStack & rTDEAS )
  58 : m_aModuleName( rModuleName ),
  59   m_aTypes( rTypes ),
  60   m_eDepth( eDepth ),
  61   m_aChildren( rTDEAS )
  62 {
  63     ::g_moduleCount.modCnt.acquire( &::g_moduleCount.modCnt );
  64 }
  65
  66 //=========================================================================
  67 // virtual
  68 TypeDescriptionEnumerationImpl::~TypeDescriptionEnumerationImpl()
  69 {
  70     ::g_moduleCount.modCnt.release( &::g_moduleCount.modCnt );
  71 }
  72
  73 //=========================================================================
  74 //
  75 // XEnumeration (base of XTypeDescriptionEnumeration) methods
  76 //
  77 //=========================================================================
  78
  79 // virtual
  80 sal_Bool SAL_CALL TypeDescriptionEnumerationImpl::hasMoreElements()
  81     throw ( uno::RuntimeException )
  82 {
  83     uno::Reference< reflection::XTypeDescriptionEnumeration > xEnum
  84         = queryCurrentChildEnumeration();
  85     if ( xEnum.is() )
  86         return xEnum->hasMoreElements();
  87
  88     return sal_False;
  89 }
  90
  91 //=========================================================================
  92 // virtual
  93 uno::Any SAL_CALL TypeDescriptionEnumerationImpl::nextElement()
  94     throw ( container::NoSuchElementException,
  95             lang::WrappedTargetException,
  96             uno::RuntimeException )
  97 {
  98     uno::Reference< reflection::XTypeDescriptionEnumeration > xEnum
  99         = queryCurrentChildEnumeration();
 100     if ( xEnum.is() )
 101         return xEnum->nextElement();
 102
 103     throw container::NoSuchElementException(
 104         rtl::OUString::createFromAscii(
 105             "No further elements in enumeration!" ),
 106         static_cast< cppu::OWeakObject * >( this  ) );
 107 }
 108
 109 //=========================================================================
 110 //
 111 // XTypeDescriptionEnumeration methods
 112 //
 113 //=========================================================================
 114
 115 // virtual
 116 uno::Reference< reflection::XTypeDescription > SAL_CALL
 117 TypeDescriptionEnumerationImpl::nextTypeDescription()
 118     throw ( container::NoSuchElementException,
 119             uno::RuntimeException )
 120 {
 121     uno::Reference< reflection::XTypeDescriptionEnumeration > xEnum
 122         = queryCurrentChildEnumeration();
 123     if ( xEnum.is() )
 124         return xEnum->nextTypeDescription();
 125
 126     throw container::NoSuchElementException(
 127         rtl::OUString::createFromAscii(
 128             "No further elements in enumeration!" ),
 129         static_cast< cppu::OWeakObject * >( this  ) );
 130 }
 131
 132 //=========================================================================
 133 uno::Reference< reflection::XTypeDescriptionEnumeration >
 134 TypeDescriptionEnumerationImpl::queryCurrentChildEnumeration()
 135 {
 136     osl::MutexGuard aGuard( m_aMutex );
 137
 138     for (;;)
 139     {
 140         if ( m_xEnum.is() )
 141         {
 142             if ( m_xEnum->hasMoreElements() )
 143             {
 144                 return m_xEnum;
 145             }
 146             else
 147             {
 148                 // Forget about enumeration without further elements. Try next.
 149                 m_xEnum.clear();
 150             }
 151         }
 152
 153         // Note: m_xEnum is always null here.
 154
 155         if ( m_aChildren.empty() )
 156         {
 157             // No child enumerations left.
 158             return m_xEnum;
 159         }
 160
 161         try
 162         {
 163             m_xEnum =
 164                 m_aChildren.top()->createTypeDescriptionEnumeration(
 165                     m_aModuleName, m_aTypes, m_eDepth );
 166         }
 167         catch ( reflection::NoSuchTypeNameException const & )
 168         {
 169             OSL_ENSURE( sal_False,
 170                "TypeDescriptionEnumerationImpl::queryCurrentChildEnumeration "
 171                "- Caught NoSuchTypeNameException!" );
 172         }
 173         catch ( reflection::InvalidTypeNameException const & )
 174         {
 175             OSL_ENSURE( sal_False,
 176                "TypeDescriptionEnumerationImpl::queryCurrentChildEnumeration "
 177                "- Caught InvalidTypeNameException!" );
 178         }
 179
 180         // We're done with this enumeration access in any case (Either
 181         // enumeration was successfully created or creation failed for some
 182         // reason).
 183         m_aChildren.pop();
 184     }
 185
 186     // unreachable
 187 }
 188
 189 } // namespace stoc_tdmgr
 190