xref: /trunk/main/ucbhelper/source/provider/providerhelper.cxx (revision 1ecadb572e7010ff3b3382ad9bf179dbc6efadbb)
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_ucbhelper.hxx"
30 
31 /**************************************************************************
32                                 TODO
33  **************************************************************************
34 
35  *************************************************************************/
36 
37 #include <hash_map>
38 #include <com/sun/star/beans/XPropertyAccess.hpp>
39 #include <com/sun/star/container/XNameAccess.hpp>
40 #include <com/sun/star/container/XNamed.hpp>
41 #include <com/sun/star/ucb/XPropertySetRegistryFactory.hpp>
42 #include <com/sun/star/ucb/XPropertySetRegistry.hpp>
43 
44 #include "osl/diagnose.h"
45 #include "osl/mutex.hxx"
46 #include "cppuhelper/weakref.hxx"
47 #include <ucbhelper/contentidentifier.hxx>
48 #include <ucbhelper/providerhelper.hxx>
49 #include <ucbhelper/contenthelper.hxx>
50 
51 using namespace com::sun::star;
52 
53 namespace ucbhelper_impl
54 {
55 
56 //=========================================================================
57 //
58 // Contents.
59 //
60 //=========================================================================
61 
62 struct equalString
63 {
64     bool operator()(
65         const rtl::OUString& rKey11, const rtl::OUString& rKey22 ) const
66     {
67         return !!( rKey11 == rKey22 );
68     }
69 };
70 
71 struct hashString
72 {
73     size_t operator()( const rtl::OUString & rName ) const
74     {
75         return rName.hashCode();
76     }
77 };
78 
79 typedef std::hash_map
80 <
81     rtl::OUString,
82     uno::WeakReference< ucb::XContent >,
83     hashString,
84     equalString
85 >
86 Contents;
87 
88 //=========================================================================
89 //
90 // struct ContentProviderImplHelper_Impl.
91 //
92 //=========================================================================
93 
94 struct ContentProviderImplHelper_Impl
95 {
96     uno::Reference< com::sun::star::ucb::XPropertySetRegistry >
97         m_xPropertySetRegistry;
98     Contents
99         m_aContents;
100 };
101 
102 } // namespace ucbhelper_impl
103 
104 //=========================================================================
105 //=========================================================================
106 //
107 // ContentProviderImplHelper Implementation.
108 //
109 //=========================================================================
110 //=========================================================================
111 
112 namespace ucbhelper {
113 
114 ContentProviderImplHelper::ContentProviderImplHelper(
115     const uno::Reference< lang::XMultiServiceFactory >& rXSMgr )
116 : m_pImpl( new ucbhelper_impl::ContentProviderImplHelper_Impl ),
117   m_xSMgr( rXSMgr )
118 {
119 }
120 
121 //=========================================================================
122 // virtual
123 ContentProviderImplHelper::~ContentProviderImplHelper()
124 {
125     delete m_pImpl;
126 }
127 
128 //=========================================================================
129 //
130 // XInterface methods.
131 //
132 //=========================================================================
133 
134 XINTERFACE_IMPL_3( ContentProviderImplHelper,
135                    lang::XTypeProvider,
136                    lang::XServiceInfo,
137                    com::sun::star::ucb::XContentProvider );
138 
139 //=========================================================================
140 //
141 // XTypeProvider methods.
142 //
143 //=========================================================================
144 
145 XTYPEPROVIDER_IMPL_3( ContentProviderImplHelper,
146                       lang::XTypeProvider,
147                       lang::XServiceInfo,
148                       com::sun::star::ucb::XContentProvider );
149 
150 //=========================================================================
151 //
152 // XServiceInfo methods.
153 //
154 //=========================================================================
155 
156 // virtual
157 sal_Bool SAL_CALL ContentProviderImplHelper::supportsService(
158                                             const rtl::OUString& ServiceName )
159     throw( uno::RuntimeException )
160 {
161     uno::Sequence< rtl::OUString > aSNL = getSupportedServiceNames();
162     const rtl::OUString* pArray = aSNL.getConstArray();
163     for ( sal_Int32 i = 0; i < aSNL.getLength(); i++ )
164     {
165         if ( pArray[ i ] == ServiceName )
166             return sal_True;
167     }
168 
169     return sal_False;
170 }
171 
172 //=========================================================================
173 //
174 // XContentProvider methods.
175 //
176 //=========================================================================
177 
178 // virtual
179 sal_Int32 SAL_CALL ContentProviderImplHelper::compareContentIds(
180         const uno::Reference< com::sun::star::ucb::XContentIdentifier >& Id1,
181         const uno::Reference< com::sun::star::ucb::XContentIdentifier >& Id2 )
182     throw( uno::RuntimeException )
183 {
184     // Simply do a string compare.
185 
186     rtl::OUString aURL1( Id1->getContentIdentifier() );
187     rtl::OUString aURL2( Id2->getContentIdentifier() );
188 
189     return aURL1.compareTo( aURL2 );;
190 }
191 
192 //=========================================================================
193 //
194 // Non-interface methods
195 //
196 //=========================================================================
197 
198 void ContentProviderImplHelper::cleanupRegisteredContents()
199 {
200     osl::MutexGuard aGuard( m_aMutex );
201 
202     ucbhelper_impl::Contents::iterator it
203         = m_pImpl->m_aContents.begin();
204     while( it != m_pImpl->m_aContents.end() )
205     {
206         uno::Reference< ucb::XContent > xContent( (*it).second );
207         if ( !xContent.is() )
208         {
209             ucbhelper_impl::Contents::iterator tmp = it;
210             ++it;
211             m_pImpl->m_aContents.erase( tmp );
212         }
213         else
214         {
215             ++it;
216         }
217     }
218 }
219 
220 //=========================================================================
221 
222 void ContentProviderImplHelper::removeContent( ContentImplHelper* pContent )
223 {
224     osl::MutexGuard aGuard( m_aMutex );
225 
226     cleanupRegisteredContents();
227 
228     const rtl::OUString aURL(
229         pContent->getIdentifier()->getContentIdentifier() );
230 
231     ucbhelper_impl::Contents::iterator it = m_pImpl->m_aContents.find( aURL );
232 
233     if ( it != m_pImpl->m_aContents.end() )
234         m_pImpl->m_aContents.erase( it );
235 }
236 
237 //=========================================================================
238 rtl::Reference< ContentImplHelper >
239 ContentProviderImplHelper::queryExistingContent(
240     const uno::Reference< com::sun::star::ucb::XContentIdentifier >&
241         Identifier )
242 {
243     return queryExistingContent( Identifier->getContentIdentifier() );
244 }
245 
246 //=========================================================================
247 rtl::Reference< ContentImplHelper >
248 ContentProviderImplHelper::queryExistingContent( const rtl::OUString& rURL )
249 {
250     osl::MutexGuard aGuard( m_aMutex );
251 
252     cleanupRegisteredContents();
253 
254     // Check, if a content with given id already exists...
255 
256     ucbhelper_impl::Contents::const_iterator it
257         = m_pImpl->m_aContents.find( rURL );
258     if ( it != m_pImpl->m_aContents.end() )
259     {
260         uno::Reference< ucb::XContent > xContent( (*it).second );
261         if ( xContent.is() )
262         {
263             return rtl::Reference< ContentImplHelper >(
264                 static_cast< ContentImplHelper * >( xContent.get() ) );
265         }
266     }
267     return rtl::Reference< ContentImplHelper >();
268 }
269 
270 //=========================================================================
271 void ContentProviderImplHelper::queryExistingContents(
272         ContentRefList& rContents )
273 {
274     osl::MutexGuard aGuard( m_aMutex );
275 
276     cleanupRegisteredContents();
277 
278     ucbhelper_impl::Contents::const_iterator it
279         = m_pImpl->m_aContents.begin();
280     ucbhelper_impl::Contents::const_iterator end
281         = m_pImpl->m_aContents.end();
282 
283     while ( it != end )
284     {
285         uno::Reference< ucb::XContent > xContent( (*it).second );
286         if ( xContent.is() )
287         {
288             rContents.push_back(
289                 rtl::Reference< ContentImplHelper >(
290                     static_cast< ContentImplHelper * >( xContent.get() ) ) );
291         }
292         ++it;
293     }
294 }
295 
296 //=========================================================================
297 void ContentProviderImplHelper::registerNewContent(
298     const uno::Reference< ucb::XContent > & xContent )
299 {
300     if ( xContent.is() )
301     {
302         osl::MutexGuard aGuard( m_aMutex );
303 
304         cleanupRegisteredContents();
305 
306         const rtl::OUString aURL(
307             xContent->getIdentifier()->getContentIdentifier() );
308         ucbhelper_impl::Contents::const_iterator it
309             = m_pImpl->m_aContents.find( aURL );
310         if ( it == m_pImpl->m_aContents.end() )
311             m_pImpl->m_aContents[ aURL ] = xContent;
312     }
313 }
314 
315 //=========================================================================
316 uno::Reference< com::sun::star::ucb::XPropertySetRegistry >
317 ContentProviderImplHelper::getAdditionalPropertySetRegistry()
318 {
319     // Get propertyset registry.
320 
321     osl::MutexGuard aGuard( m_aMutex );
322 
323     if ( !m_pImpl->m_xPropertySetRegistry.is() )
324     {
325         uno::Reference< com::sun::star::ucb::XPropertySetRegistryFactory >
326             xRegFac(
327                 m_xSMgr->createInstance(
328                     rtl::OUString::createFromAscii(
329                         "com.sun.star.ucb.Store" ) ),
330                 uno::UNO_QUERY );
331 
332         OSL_ENSURE( xRegFac.is(),
333                     "ContentProviderImplHelper::getAdditionalPropertySet - "
334                     "No UCB-Store service!" );
335 
336         if ( xRegFac.is() )
337         {
338             // Open/create a registry.
339             m_pImpl->m_xPropertySetRegistry
340                 = xRegFac->createPropertySetRegistry( rtl::OUString() );
341 
342             OSL_ENSURE( m_pImpl->m_xPropertySetRegistry.is(),
343                     "ContentProviderImplHelper::getAdditionalPropertySet - "
344                     "Error opening registry!" );
345         }
346     }
347 
348     return m_pImpl->m_xPropertySetRegistry;
349 }
350 
351 
352 //=========================================================================
353 uno::Reference< com::sun::star::ucb::XPersistentPropertySet >
354 ContentProviderImplHelper::getAdditionalPropertySet(
355     const rtl::OUString& rKey, sal_Bool bCreate )
356 {
357     // Get propertyset registry.
358     getAdditionalPropertySetRegistry();
359 
360     if ( m_pImpl->m_xPropertySetRegistry.is() )
361     {
362         // Open/create persistent property set.
363         return uno::Reference< com::sun::star::ucb::XPersistentPropertySet >(
364             m_pImpl->m_xPropertySetRegistry->openPropertySet(
365                 rKey, bCreate ) );
366     }
367 
368     return uno::Reference< com::sun::star::ucb::XPersistentPropertySet >();
369 }
370 
371 //=========================================================================
372 sal_Bool ContentProviderImplHelper::renameAdditionalPropertySet(
373     const rtl::OUString& rOldKey,
374     const rtl::OUString& rNewKey,
375     sal_Bool bRecursive )
376 {
377     if ( rOldKey == rNewKey )
378         return sal_True;
379 
380     osl::MutexGuard aGuard( m_aMutex );
381 
382     if ( bRecursive )
383     {
384         // Get propertyset registry.
385         getAdditionalPropertySetRegistry();
386 
387         if ( m_pImpl->m_xPropertySetRegistry.is() )
388         {
389             uno::Reference< container::XNameAccess > xNameAccess(
390                 m_pImpl->m_xPropertySetRegistry, uno::UNO_QUERY );
391             if ( xNameAccess.is() )
392             {
393                 uno::Sequence< rtl::OUString > aKeys
394                     = xNameAccess->getElementNames();
395                 sal_Int32 nCount = aKeys.getLength();
396                 if ( nCount > 0 )
397                 {
398                     rtl::OUString aOldKeyWithSlash = rOldKey;
399                     rtl::OUString aOldKeyWithoutSlash;
400                     if ( aOldKeyWithSlash.lastIndexOf(
401                              sal_Unicode('/')
402                                  != aOldKeyWithSlash.getLength() - 1 ) )
403                     {
404                         aOldKeyWithSlash += rtl::OUString( sal_Unicode('/') );
405                         aOldKeyWithoutSlash = rOldKey;
406                     }
407                     else if ( rOldKey.getLength() )
408                         aOldKeyWithoutSlash
409                             = rOldKey.copy( 0, rOldKey.getLength() - 1 );
410 
411                     const rtl::OUString* pKeys = aKeys.getConstArray();
412                     for ( sal_Int32 n = 0; n < nCount; ++n )
413                     {
414                         const rtl::OUString& rKey = pKeys[ n ];
415                         if ( rKey.compareTo(
416                                  aOldKeyWithSlash,
417                                  aOldKeyWithSlash.getLength() ) == 0
418                              || rKey.equals( aOldKeyWithoutSlash ) )
419                         {
420                             rtl::OUString aNewKey
421                                 = rKey.replaceAt(
422                                     0, rOldKey.getLength(), rNewKey );
423                             if ( !renameAdditionalPropertySet(
424                                     rKey, aNewKey, sal_False ) )
425                                 return sal_False;
426                         }
427                     }
428                 }
429             }
430             else
431                 return sal_False;
432         }
433         else
434             return sal_False;
435     }
436     else
437     {
438         // Get old property set, if exists.
439         uno::Reference< com::sun::star::ucb::XPersistentPropertySet > xOldSet
440             = getAdditionalPropertySet( rOldKey, sal_False );
441         if ( xOldSet.is() )
442         {
443             // Rename property set.
444             uno::Reference< container::XNamed > xNamed(
445                 xOldSet, uno::UNO_QUERY );
446             if ( xNamed.is() )
447             {
448                 // ??? throws no exceptions and has no return value ???
449                 xNamed->setName( rNewKey );
450             }
451             else
452                 return sal_False;
453         }
454     }
455     return sal_True;
456 }
457 
458 //=========================================================================
459 sal_Bool ContentProviderImplHelper::copyAdditionalPropertySet(
460     const rtl::OUString& rSourceKey,
461     const rtl::OUString& rTargetKey,
462     sal_Bool bRecursive )
463 {
464     if ( rSourceKey == rTargetKey )
465         return sal_True;
466 
467     osl::MutexGuard aGuard( m_aMutex );
468 
469     if ( bRecursive )
470     {
471         // Get propertyset registry.
472         getAdditionalPropertySetRegistry();
473 
474         if ( m_pImpl->m_xPropertySetRegistry.is() )
475         {
476             uno::Reference< container::XNameAccess > xNameAccess(
477                 m_pImpl->m_xPropertySetRegistry, uno::UNO_QUERY );
478             if ( xNameAccess.is() )
479             {
480                 uno::Sequence< rtl::OUString > aKeys
481                     = xNameAccess->getElementNames();
482                 sal_Int32 nCount = aKeys.getLength();
483                 if ( nCount > 0 )
484                 {
485                     rtl::OUString aSrcKeyWithSlash = rSourceKey;
486                     rtl::OUString aSrcKeyWithoutSlash;
487                     if ( aSrcKeyWithSlash.lastIndexOf(
488                              sal_Unicode('/')
489                              != aSrcKeyWithSlash.getLength() - 1 ) )
490                     {
491                         aSrcKeyWithSlash += rtl::OUString( sal_Unicode('/') );
492                         aSrcKeyWithoutSlash = rSourceKey;
493                     }
494                     else if ( rSourceKey.getLength() )
495                         aSrcKeyWithoutSlash = rSourceKey.copy(
496                             0, rSourceKey.getLength() - 1 );
497 
498                     const rtl::OUString* pKeys = aKeys.getConstArray();
499                     for ( sal_Int32 n = 0; n < nCount; ++n )
500                     {
501                         const rtl::OUString& rKey = pKeys[ n ];
502                         if ( rKey.compareTo(
503                                  aSrcKeyWithSlash,
504                                  aSrcKeyWithSlash.getLength() ) == 0
505                              || rKey.equals( aSrcKeyWithoutSlash ) )
506                         {
507                             rtl::OUString aNewKey
508                                 = rKey.replaceAt(
509                                     0, rSourceKey.getLength(), rTargetKey );
510                             if ( !copyAdditionalPropertySet(
511                                     rKey, aNewKey, sal_False ) )
512                                 return sal_False;
513                         }
514                     }
515                 }
516             }
517             else
518                 return sal_False;
519         }
520         else
521             return sal_False;
522     }
523     else
524     {
525         // Get old property set, if exists.
526         uno::Reference< com::sun::star::ucb::XPersistentPropertySet >
527             xOldPropSet = getAdditionalPropertySet( rSourceKey, sal_False );
528         if ( !xOldPropSet.is() )
529             return sal_False;
530 
531         uno::Reference< beans::XPropertySetInfo > xPropSetInfo
532             = xOldPropSet->getPropertySetInfo();
533         if ( !xPropSetInfo.is() )
534             return sal_False;
535 
536         uno::Reference< beans::XPropertyAccess > xOldPropAccess(
537             xOldPropSet, uno::UNO_QUERY );
538         if ( !xOldPropAccess.is() )
539             return sal_False;
540 
541         // Obtain all values from old set.
542         uno::Sequence< beans::PropertyValue > aValues
543             = xOldPropAccess->getPropertyValues();
544         sal_Int32 nCount = aValues.getLength();
545 
546         uno::Sequence< beans::Property > aProps
547             = xPropSetInfo->getProperties();
548 
549         if ( nCount )
550         {
551             // Fail, if property set with new key already exists.
552             uno::Reference< com::sun::star::ucb::XPersistentPropertySet >
553                 xNewPropSet
554                     = getAdditionalPropertySet( rTargetKey, sal_False );
555             if ( xNewPropSet.is() )
556                 return sal_False;
557 
558             // Create new, empty set.
559             xNewPropSet = getAdditionalPropertySet( rTargetKey, sal_True );
560             if ( !xNewPropSet.is() )
561                 return sal_False;
562 
563             uno::Reference< beans::XPropertyContainer > xNewPropContainer(
564                 xNewPropSet, uno::UNO_QUERY );
565             if ( !xNewPropContainer.is() )
566                 return sal_False;
567 
568             for ( sal_Int32 n = 0; n < nCount; ++n )
569             {
570                 const beans::PropertyValue& rValue = aValues[ n ];
571 
572                 sal_Int16 nAttribs = 0;
573                 for ( sal_Int32 m = 0; m < aProps.getLength(); ++m )
574                 {
575                     if ( aProps[ m ].Name == rValue.Name )
576                     {
577                         nAttribs = aProps[ m ].Attributes;
578                         break;
579                     }
580                 }
581 
582                 try
583                 {
584                     xNewPropContainer->addProperty(
585                         rValue.Name, nAttribs, rValue.Value );
586                 }
587                 catch ( beans::PropertyExistException & )
588                 {
589                 }
590                 catch ( beans::IllegalTypeException & )
591                 {
592                 }
593                 catch ( lang::IllegalArgumentException & )
594                 {
595                 }
596             }
597         }
598     }
599     return sal_True;
600 }
601 
602 //=========================================================================
603 sal_Bool ContentProviderImplHelper::removeAdditionalPropertySet(
604     const rtl::OUString& rKey, sal_Bool bRecursive )
605 {
606     osl::MutexGuard aGuard( m_aMutex );
607 
608     if ( bRecursive )
609     {
610         // Get propertyset registry.
611         getAdditionalPropertySetRegistry();
612 
613         if ( m_pImpl->m_xPropertySetRegistry.is() )
614         {
615             uno::Reference< container::XNameAccess > xNameAccess(
616                 m_pImpl->m_xPropertySetRegistry, uno::UNO_QUERY );
617             if ( xNameAccess.is() )
618             {
619                 uno::Sequence< rtl::OUString > aKeys
620                     = xNameAccess->getElementNames();
621                 sal_Int32 nCount = aKeys.getLength();
622                 if ( nCount > 0 )
623                 {
624                     rtl::OUString aKeyWithSlash = rKey;
625                     rtl::OUString aKeyWithoutSlash;
626                     if ( aKeyWithSlash.lastIndexOf(
627                              sal_Unicode('/')
628                              != aKeyWithSlash.getLength() - 1 ) )
629                     {
630                         aKeyWithSlash += rtl::OUString( (sal_Unicode)'/' );
631                         aKeyWithoutSlash = rKey;
632                     }
633                     else if ( rKey.getLength() )
634                         aKeyWithoutSlash
635                             = rKey.copy( 0, rKey.getLength() - 1 );
636 
637                     const rtl::OUString* pKeys = aKeys.getConstArray();
638                     for ( sal_Int32 n = 0; n < nCount; ++n )
639                     {
640                         const rtl::OUString& rCurrKey = pKeys[ n ];
641                         if ( rCurrKey.compareTo(
642                                  aKeyWithSlash,
643                                  aKeyWithSlash.getLength() ) == 0
644                              || rCurrKey.equals( aKeyWithoutSlash ) )
645                         {
646                             if ( !removeAdditionalPropertySet(
647                                      rCurrKey, sal_False ) )
648                                 return sal_False;
649                         }
650                     }
651                 }
652             }
653             else
654                 return sal_False;
655         }
656         else
657             return sal_False;
658     }
659     else
660     {
661         // Get propertyset registry.
662         getAdditionalPropertySetRegistry();
663 
664         if ( m_pImpl->m_xPropertySetRegistry.is() )
665             m_pImpl->m_xPropertySetRegistry->removePropertySet( rKey );
666         else
667             return sal_False;
668     }
669     return sal_True;
670 }
671 
672 } // namespace ucbhelper
673