text: /**************************************************************
   * 
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   * 
   *   http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   * 
   *************************************************************/
  
  
  
  // MARKER(update_precomp.py): autogen include statement, do not remove
  #include "precompiled_stoc.hxx"
  #include <osl/diagnose.h>
  #include "base.hxx"
  
  #include "com/sun/star/uno/RuntimeException.hpp"
  
  using namespace com::sun::star;
  
  namespace stoc_rdbtdp
  {
  
  void SingletonTypeDescriptionImpl::init() {
      {
          MutexGuard guard(getMutex());
          if (_xInterfaceTD.is() || _xServiceTD.is()) {
              return;
          }
      }
      Reference< XTypeDescription > base;
      try {
          base = Reference< XTypeDescription >(
              _xTDMgr->getByHierarchicalName(_aBaseName), UNO_QUERY_THROW);
      } catch (NoSuchElementException const & e) {
          throw RuntimeException(
              (OUString(
                  RTL_CONSTASCII_USTRINGPARAM(
                      "com.sun.star.container.NoSuchElementException: "))
               + e.Message),
              static_cast< OWeakObject * >(this));
      }
      MutexGuard guard(getMutex());
      if (!_xInterfaceTD.is() && !_xServiceTD.is()) {
          if (resolveTypedefs(base)->getTypeClass() == TypeClass_INTERFACE) {
              _xInterfaceTD = base;
          } else if (base->getTypeClass() == TypeClass_SERVICE) {
              _xServiceTD = Reference< XServiceTypeDescription >(
                  base, UNO_QUERY_THROW);
          } else {
              throw RuntimeException(
                  OUString(
                      RTL_CONSTASCII_USTRINGPARAM(
                          "Singleton is based on neither interface nor service")),
                  static_cast< OWeakObject * >(this));
          }
      }
      OSL_ASSERT(_xInterfaceTD.is() ^ _xServiceTD.is());
  }
  
  //__________________________________________________________________________________________________
  // virtual
  SingletonTypeDescriptionImpl::~SingletonTypeDescriptionImpl()
  {
      g_moduleCount.modCnt.release( &g_moduleCount.modCnt );
  }
  
  // XTypeDescription
  //__________________________________________________________________________________________________
  // virtual
  TypeClass SingletonTypeDescriptionImpl::getTypeClass()
      throw(::com::sun::star::uno::RuntimeException)
  {
      return TypeClass_SINGLETON;
  }
  //__________________________________________________________________________________________________
  // virtual
  OUString SingletonTypeDescriptionImpl::getName()
      throw(::com::sun::star::uno::RuntimeException)
  {
      return _aName;
  }
  
  // XSingletonTypeDescription
  //__________________________________________________________________________________________________
  // virtual
  Reference< XServiceTypeDescription > SAL_CALL
  SingletonTypeDescriptionImpl::getService()
      throw(::com::sun::star::uno::RuntimeException)
  {
      init();
      return _xServiceTD;
  }
  
  // XSingletonTypeDescription2
  //______________________________________________________________________________
  // virtual
  sal_Bool SAL_CALL
  SingletonTypeDescriptionImpl::isInterfaceBased()
      throw(::com::sun::star::uno::RuntimeException)
  {
      init();
      return _xInterfaceTD.is();
  }
  
  //______________________________________________________________________________
  // virtual
  Reference< XTypeDescription > SAL_CALL
  SingletonTypeDescriptionImpl::getInterface()
      throw(::com::sun::star::uno::RuntimeException)
  {
      init();
      return _xInterfaceTD;
  }
  
  }
  