LCOV - code coverage report
Current view: top level - xmloff/source/core - unointerfacetouniqueidentifiermapper.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 64 0.0 %
Date: 2014-04-14 Functions: 0 9 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <xmloff/unointerfacetouniqueidentifiermapper.hxx>
      21             : 
      22             : using namespace ::com::sun::star;
      23             : using ::com::sun::star::uno::Reference;
      24             : using ::com::sun::star::uno::XInterface;
      25             : 
      26             : namespace comphelper
      27             : {
      28             : 
      29           0 : UnoInterfaceToUniqueIdentifierMapper::UnoInterfaceToUniqueIdentifierMapper()
      30           0 : : mnNextId( 1 )
      31             : {
      32           0 : }
      33             : 
      34           0 : const OUString& UnoInterfaceToUniqueIdentifierMapper::registerReference( const Reference< XInterface >& rInterface )
      35             : {
      36             :     // Be certain that the references we store in our table are to the
      37             :     // leading / primary XInterface - cf. findReference
      38           0 :     uno::Reference< uno::XInterface > xRef( rInterface, uno::UNO_QUERY );
      39             : 
      40           0 :     IdMap_t::const_iterator aIter;
      41           0 :     if( findReference( xRef, aIter ) )
      42             :     {
      43           0 :         return (*aIter).first;
      44             :     }
      45             :     else
      46             :     {
      47           0 :         OUString aId( "id" );
      48           0 :         aId += OUString::number( mnNextId++ );
      49           0 :         return (*maEntries.insert( IdMap_t::value_type( aId, xRef ) ).first).first;
      50           0 :     }
      51             : }
      52             : 
      53           0 : bool UnoInterfaceToUniqueIdentifierMapper::registerReference( const OUString& rIdentifier, const Reference< XInterface >& rInterface )
      54             : {
      55           0 :     IdMap_t::const_iterator aIter;
      56             : 
      57             :     // Be certain that the references we store in our table are to the
      58             :     // leading / primary XInterface - cf. findReference
      59           0 :     uno::Reference< uno::XInterface > xRef( rInterface, uno::UNO_QUERY );
      60             : 
      61           0 :     if( findReference( xRef, aIter ) )
      62             :     {
      63           0 :         return rIdentifier != (*aIter).first;
      64             :     }
      65           0 :     else if( findIdentifier( rIdentifier, aIter ) )
      66             :     {
      67           0 :         return false;
      68             :     }
      69             :     else
      70             :     {
      71           0 :         insertReference( rIdentifier, xRef );
      72             :     }
      73             : 
      74           0 :     return true;
      75             : }
      76             : 
      77           0 : void UnoInterfaceToUniqueIdentifierMapper::registerReferenceAlways( const OUString& rIdentifier, const Reference< XInterface >& rInterface )
      78             : {
      79             :     // Be certain that the references we store in our table are to the
      80             :     // leading / primary XInterface - cf. findReference
      81           0 :     uno::Reference< uno::XInterface > xRef( rInterface, uno::UNO_QUERY );
      82             : 
      83           0 :     insertReference( rIdentifier, xRef );
      84           0 : }
      85             : 
      86           0 : const OUString& UnoInterfaceToUniqueIdentifierMapper::getIdentifier( const Reference< XInterface >& rInterface ) const
      87             : {
      88           0 :     IdMap_t::const_iterator aIter;
      89           0 :     if( findReference( rInterface, aIter ) )
      90             :     {
      91           0 :         return (*aIter).first;
      92             :     }
      93             :     else
      94             :     {
      95           0 :         static const OUString aEmpty;
      96           0 :         return aEmpty;
      97             :     }
      98             : }
      99             : 
     100           0 : const Reference< XInterface >& UnoInterfaceToUniqueIdentifierMapper::getReference( const OUString& rIdentifier ) const
     101             : {
     102           0 :     IdMap_t::const_iterator aIter;
     103           0 :     if( findIdentifier( rIdentifier, aIter ) )
     104             :     {
     105           0 :         return (*aIter).second;
     106             :     }
     107             :     else
     108             :     {
     109           0 :         static const Reference< XInterface > aEmpty;
     110           0 :         return aEmpty;
     111             :     }
     112             : }
     113             : 
     114           0 : bool UnoInterfaceToUniqueIdentifierMapper::findReference( const Reference< XInterface >& rInterface, IdMap_t::const_iterator& rIter ) const
     115             : {
     116           0 :     uno::Reference< uno::XInterface > xRef( rInterface, uno::UNO_QUERY );
     117             : 
     118           0 :     rIter = maEntries.begin();
     119             : 
     120           0 :     const IdMap_t::const_iterator aEnd( maEntries.end() );
     121           0 :     while( rIter != aEnd )
     122             :     {
     123             :         // The Reference == operator, does a repeated queryInterface on
     124             :         // this to ensure we got the right XInterface base-class. However,
     125             :         // we can be sure that this has been done already by the time we
     126             :         // get to here.
     127           0 :         if( (*rIter).second.get() == xRef.get() )
     128           0 :             return true;
     129             : 
     130           0 :         rIter++;
     131             :     }
     132             : 
     133           0 :     return false;
     134             : }
     135             : 
     136           0 : bool UnoInterfaceToUniqueIdentifierMapper::findIdentifier( const OUString& rIdentifier, IdMap_t::const_iterator& rIter ) const
     137             : {
     138           0 :     rIter = maEntries.find( rIdentifier );
     139           0 :     return rIter != maEntries.end();
     140             : }
     141             : 
     142           0 : void UnoInterfaceToUniqueIdentifierMapper::insertReference( const OUString& rIdentifier, const Reference< XInterface >& rInterface )
     143             : {
     144           0 :     maEntries[rIdentifier] = rInterface;
     145             : 
     146             :     // see if this is a reference like something we would generate in the future
     147           0 :     const sal_Unicode *p = rIdentifier.getStr();
     148           0 :     sal_Int32 nLength = rIdentifier.getLength();
     149             : 
     150             :     // see if the identifier is 'id' followed by a pure integer value
     151           0 :     if( nLength < 2 || p[0] != 'i' || p[1] != 'd' )
     152           0 :         return;
     153             : 
     154           0 :     nLength -= 2;
     155           0 :     p += 2;
     156             : 
     157           0 :     while(nLength--)
     158             :     {
     159           0 :         if( (*p < '0') || (*p > '9') )
     160           0 :             return; // a custom id, that will never conflict with genereated id's
     161             : 
     162           0 :         p++;
     163             :     }
     164             : 
     165             :     // the identifier is a pure integer value
     166             :     // so we make sure we will never generate
     167             :     // an integer value like this one
     168           0 :     sal_Int32 nId = rIdentifier.copy(2).toInt32();
     169           0 :     if( mnNextId <= nId )
     170           0 :         mnNextId = nId + 1;
     171             : }
     172             : 
     173             : }
     174             : 
     175             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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