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Diffstat (limited to 'unoxml/source/rdf/librdf_repository.cxx')
| -rw-r--r-- | unoxml/source/rdf/librdf_repository.cxx | 2248 |
1 files changed, 2248 insertions, 0 deletions
diff --git a/unoxml/source/rdf/librdf_repository.cxx b/unoxml/source/rdf/librdf_repository.cxx new file mode 100644 index 000000000000..a7e50e7e232d --- /dev/null +++ b/unoxml/source/rdf/librdf_repository.cxx @@ -0,0 +1,2248 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#include "librdf_repository.hxx" + +#include <string.h> + +#include <set> +#include <map> +#include <functional> +#include <algorithm> + +#include <boost/utility.hpp> +#include <boost/shared_ptr.hpp> +#include <boost/shared_array.hpp> +#include <boost/bind.hpp> + +#include <librdf.h> + +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/lang/XInitialization.hpp> +#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp> +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <com/sun/star/io/XSeekableInputStream.hpp> +#include <com/sun/star/text/XTextRange.hpp> +#include <com/sun/star/rdf/XDocumentRepository.hpp> +#include <com/sun/star/rdf/XLiteral.hpp> +#include <com/sun/star/rdf/FileFormat.hpp> +#include <com/sun/star/rdf/URIs.hpp> +#include <com/sun/star/rdf/BlankNode.hpp> +#include <com/sun/star/rdf/URI.hpp> +#include <com/sun/star/rdf/Literal.hpp> + +#include <rtl/ref.hxx> +#include <rtl/ustring.hxx> +#include <cppuhelper/implbase1.hxx> +#include <cppuhelper/implbase3.hxx> +#include <cppuhelper/basemutex.hxx> + +#include <comphelper/stlunosequence.hxx> +#include <comphelper/sequenceasvector.hxx> +#include <comphelper/makesequence.hxx> +#include <librdf.h> +#include <libxslt/security.h> + +#include <boost/utility.hpp> +#include <boost/shared_ptr.hpp> +#include <boost/shared_array.hpp> +#include <boost/bind.hpp> + +#include <map> +#include <functional> +#include <algorithm> + +#include <string.h> + + +/** + Implementation of the service com.sun.star.rdf.Repository. + + This implementation uses the Redland RDF library (librdf). + + There are several classes involved: + librdf_TypeConverter: helper class to convert data types redland <-> uno + librdf_Repository: the main repository, does almost all the work + librdf_NamedGraph: the XNamedGraph, forwards everything to repository + librdf_GraphResult: an XEnumeration<Statement> + librdf_QuerySelectResult: an XEnumeration<sequence<XNode>> + + @author mst + */ + +/// anonymous implementation namespace +namespace { + +class librdf_NamedGraph; +class librdf_Repository; + +using namespace ::com::sun::star; + +typedef std::map< ::rtl::OUString, ::rtl::Reference<librdf_NamedGraph> > + NamedGraphMap_t; + +const char s_sparql [] = "sparql"; +const char s_nsRDFs [] = "http://www.w3.org/2000/01/rdf-schema#"; +const char s_label [] = "label"; +const char s_nsOOo [] = "http://openoffice.org/2004/office/rdfa/"; + +//////////////////////////////////////////////////////////////////////////// + +//FIXME: this approach is not ideal. can we use blind nodes instead? +bool isInternalContext(librdf_node *i_pNode) throw () +{ + OSL_ENSURE(i_pNode, "isInternalContext: context null"); + OSL_ENSURE(librdf_node_is_resource(i_pNode), + "isInternalContext: context not resource"); + if (i_pNode) { + librdf_uri *pURI(librdf_node_get_uri(i_pNode)); + OSL_ENSURE(pURI, "isInternalContext: URI null"); + if (pURI) { + unsigned char *pContextURI(librdf_uri_as_string(pURI)); + OSL_ENSURE(pContextURI, + "isInternalContext: URI string null"); + // if prefix matches reserved uri, it is RDFa context + if (!strncmp(reinterpret_cast<char *>(pContextURI), + s_nsOOo, sizeof(s_nsOOo)-1)) { + return true; + } + } + return false; + } + return true; +} + + +//////////////////////////////////////////////////////////////////////////// + +// n.b.: librdf destructor functions dereference null pointers! +// so they need to be wrapped to be usable with boost::shared_ptr. +static void safe_librdf_free_world(librdf_world *const world) +{ + if (world) { librdf_free_world(world); } +} +static void safe_librdf_free_model(librdf_model *const model) +{ + if (model) { librdf_free_model(model); } +} +static void safe_librdf_free_node(librdf_node* node) +{ + if (node) { librdf_free_node(node); } +} +static void safe_librdf_free_parser(librdf_parser *const parser) +{ + if (parser) { librdf_free_parser(parser); } +} +static void safe_librdf_free_query(librdf_query *const query) +{ + if (query) { librdf_free_query(query); } +} +static void +safe_librdf_free_query_results(librdf_query_results *const query_results) +{ + if (query_results) { librdf_free_query_results(query_results); } +} +static void safe_librdf_free_serializer(librdf_serializer *const serializer) +{ + if (serializer) { librdf_free_serializer(serializer); } +} +static void safe_librdf_free_statement(librdf_statement *const statement) +{ + if (statement) { librdf_free_statement(statement); } +} +static void safe_librdf_free_storage(librdf_storage *const storage) +{ + if (storage) { librdf_free_storage(storage); } +} +static void safe_librdf_free_stream(librdf_stream *const stream) +{ + if (stream) { librdf_free_stream(stream); } +} +static void safe_librdf_free_uri(librdf_uri *const uri) +{ + if (uri) { librdf_free_uri(uri); } +} + + +//////////////////////////////////////////////////////////////////////////// + +/** converts between librdf types and UNO API types. + */ +class librdf_TypeConverter +{ +public: + librdf_TypeConverter( + uno::Reference< uno::XComponentContext > const & i_xContext, + librdf_Repository &i_rRep) + : m_xContext(i_xContext) + , m_rRep(i_rRep) + { }; + + librdf_world *createWorld() const; + librdf_storage *createStorage(librdf_world *i_pWorld) const; + librdf_model *createModel(librdf_world *i_pWorld, + librdf_storage * i_pStorage) const; + librdf_uri* mkURI( librdf_world* i_pWorld, + const uno::Reference< rdf::XURI > & i_xURI) const; + librdf_node* mkResource( librdf_world* i_pWorld, + const uno::Reference< rdf::XResource > & i_xResource) const; + librdf_node* mkNode( librdf_world* i_pWorld, + const uno::Reference< rdf::XNode > & i_xNode) const; + librdf_statement* mkStatement( librdf_world* i_pWorld, + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) const; + uno::Reference<rdf::XURI> convertToXURI(librdf_uri* i_pURI) const; + uno::Reference<rdf::XURI> convertToXURI(librdf_node* i_pURI) const; + uno::Reference<rdf::XResource> + convertToXResource(librdf_node* i_pNode) const; + uno::Reference<rdf::XNode> convertToXNode(librdf_node* i_pNode) const; + rdf::Statement + convertToStatement(librdf_statement* i_pStmt, librdf_node* i_pContext) + const; + +private: + uno::Reference< uno::XComponentContext > m_xContext; + librdf_Repository & m_rRep; +}; + + +//////////////////////////////////////////////////////////////////////////// + +/** implements the repository service. + */ +class librdf_Repository: + private boost::noncopyable, +// private ::cppu::BaseMutex, + public ::cppu::WeakImplHelper3< + lang::XServiceInfo, + rdf::XDocumentRepository, + lang::XInitialization> +{ +public: + + explicit librdf_Repository( + uno::Reference< uno::XComponentContext > const & i_xContext); + virtual ~librdf_Repository(); + + // ::com::sun::star::lang::XServiceInfo: + virtual ::rtl::OUString SAL_CALL getImplementationName() + throw (uno::RuntimeException); + virtual ::sal_Bool SAL_CALL supportsService( + const ::rtl::OUString & ServiceName) throw (uno::RuntimeException); + virtual uno::Sequence< ::rtl::OUString > SAL_CALL + getSupportedServiceNames() throw (uno::RuntimeException); + + // ::com::sun::star::rdf::XRepository: + virtual uno::Reference< rdf::XBlankNode > SAL_CALL createBlankNode() + throw (uno::RuntimeException); + virtual uno::Reference<rdf::XNamedGraph> SAL_CALL importGraph( + ::sal_Int16 i_Format, + const uno::Reference< io::XInputStream > & i_xInStream, + const uno::Reference< rdf::XURI > & i_xGraphName, + const uno::Reference< rdf::XURI > & i_xBaseURI) + throw (uno::RuntimeException, lang::IllegalArgumentException, + datatransfer::UnsupportedFlavorException, + container::ElementExistException, rdf::ParseException, + rdf::RepositoryException, io::IOException); + virtual void SAL_CALL exportGraph(::sal_Int16 i_Format, + const uno::Reference< io::XOutputStream > & i_xOutStream, + const uno::Reference< rdf::XURI > & i_xGraphName, + const uno::Reference< rdf::XURI > & i_xBaseURI) + throw (uno::RuntimeException, lang::IllegalArgumentException, + datatransfer::UnsupportedFlavorException, + container::NoSuchElementException, rdf::RepositoryException, + io::IOException); + virtual uno::Sequence< uno::Reference< rdf::XURI > > SAL_CALL + getGraphNames() throw (uno::RuntimeException, rdf::RepositoryException); + virtual uno::Reference< rdf::XNamedGraph > SAL_CALL getGraph( + const uno::Reference< rdf::XURI > & i_xGraphName) + throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException); + virtual uno::Reference< rdf::XNamedGraph > SAL_CALL createGraph( + const uno::Reference< rdf::XURI > & i_xGraphName) + throw (uno::RuntimeException, lang::IllegalArgumentException, + container::ElementExistException, rdf::RepositoryException); + virtual void SAL_CALL destroyGraph( + const uno::Reference< rdf::XURI > & i_xGraphName) + throw (uno::RuntimeException, lang::IllegalArgumentException, + container::NoSuchElementException, rdf::RepositoryException); + virtual uno::Reference< container::XEnumeration > SAL_CALL getStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) + throw (uno::RuntimeException, + rdf::RepositoryException); + virtual uno::Reference< rdf::XQuerySelectResult > SAL_CALL + querySelect(const ::rtl::OUString & i_rQuery) + throw (uno::RuntimeException, rdf::QueryException, + rdf::RepositoryException); + virtual uno::Reference< container::XEnumeration > SAL_CALL + queryConstruct(const ::rtl::OUString & i_rQuery) + throw (uno::RuntimeException, rdf::QueryException, + rdf::RepositoryException); + virtual ::sal_Bool SAL_CALL queryAsk(const ::rtl::OUString & i_rQuery) + throw (uno::RuntimeException, rdf::QueryException, + rdf::RepositoryException); + + // ::com::sun::star::rdf::XDocumentRepository: + virtual void SAL_CALL setStatementRDFa( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Sequence< uno::Reference< rdf::XURI > > & i_rPredicates, + const uno::Reference< rdf::XMetadatable > & i_xObject, + const ::rtl::OUString & i_rRDFaContent, + const uno::Reference< rdf::XURI > & i_xRDFaDatatype) + throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException); + virtual void SAL_CALL removeStatementRDFa( + const uno::Reference< rdf::XMetadatable > & i_xElement) + throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException); + virtual beans::Pair< uno::Sequence<rdf::Statement>, sal_Bool > SAL_CALL + getStatementRDFa(uno::Reference< rdf::XMetadatable > const& i_xElement) + throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException); + virtual uno::Reference< container::XEnumeration > SAL_CALL + getStatementsRDFa( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) + throw (uno::RuntimeException, + rdf::RepositoryException); + + // ::com::sun::star::lang::XInitialization: + virtual void SAL_CALL initialize( + const uno::Sequence< ::com::sun::star::uno::Any > & i_rArguments) + throw (uno::RuntimeException, uno::Exception); + + // XNamedGraph forwards --------------------------------------------- + const NamedGraphMap_t::iterator SAL_CALL clearGraph( + const uno::Reference< rdf::XURI > & i_xName, + bool i_Internal = false ); + void SAL_CALL addStatementGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xName, + bool i_Internal = false ); +// throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException); + void SAL_CALL removeStatementsGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xName ); +// throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException); + uno::Reference< container::XEnumeration > SAL_CALL getStatementsGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xName, + bool i_Internal = false ); +// throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException); + + const librdf_TypeConverter& getTypeConverter() { return m_TypeConverter; }; + +private: + + uno::Reference< uno::XComponentContext > m_xContext; + + /// librdf global data + /** N.B.: The redland documentation gives the impression that you can have + as many librdf_worlds as you like. This is true in the same sense + that you can physically be in as many places as you like. + Well, you can, just not at the same time. + The ugly truth is that destroying a librdf_world kills a bunch + of static variables; other librdf_worlds become very unhappy + when they access these. + And of course this is not documented anywhere that I could find. + So we allocate a single world, and refcount that. + */ + static boost::shared_ptr<librdf_world> m_pWorld; + /// refcount + static sal_uInt32 m_NumInstances; + /// mutex for m_pWorld - redland is not as threadsafe as is often claimed + static osl::Mutex m_aMutex; + + // NB: sequence of the shared pointers is important! + /// librdf repository storage + boost::shared_ptr<librdf_storage> m_pStorage; + /// librdf repository model + boost::shared_ptr<librdf_model> m_pModel; + + /// all named graphs + NamedGraphMap_t m_NamedGraphs; + + /// type conversion helper + librdf_TypeConverter m_TypeConverter; + + /// set of xml:ids of elements with xhtml:content + ::std::set< ::rtl::OUString > m_RDFaXHTMLContentSet; +}; + + +//////////////////////////////////////////////////////////////////////////// + +/** result of operations that return a graph, i.e., + an XEnumeration of statements. + */ +class librdf_GraphResult: + private boost::noncopyable, + public ::cppu::WeakImplHelper1< + container::XEnumeration> +{ +public: + + librdf_GraphResult(librdf_Repository *i_pRepository, + ::osl::Mutex & i_rMutex, + boost::shared_ptr<librdf_stream> const& i_pStream, + boost::shared_ptr<librdf_node> const& i_pContext, + boost::shared_ptr<librdf_query> const& i_pQuery = + boost::shared_ptr<librdf_query>() ) + : m_xRep(i_pRepository) + , m_rMutex(i_rMutex) + , m_pQuery(i_pQuery) + , m_pContext(i_pContext) + , m_pStream(i_pStream) + { }; + + virtual ~librdf_GraphResult() {} + + // ::com::sun::star::container::XEnumeration: + virtual ::sal_Bool SAL_CALL hasMoreElements() + throw (uno::RuntimeException); + virtual uno::Any SAL_CALL nextElement() + throw (uno::RuntimeException, container::NoSuchElementException, + lang::WrappedTargetException); + +private: + // NB: this is not a weak pointer: streams _must_ be deleted before the + // storage they point into, so we keep the repository alive here + // also, sequence is important: the stream must be destroyed first. + ::rtl::Reference< librdf_Repository > m_xRep; + // needed for synchronizing access to librdf (it doesnt do win32 threading) + ::osl::Mutex & m_rMutex; + // the query (in case this is a result of a graph query) + // not that the redland documentation spells this out explicity, but + // queries must be freed only after all the results are completely read + boost::shared_ptr<librdf_query> const m_pQuery; + boost::shared_ptr<librdf_node> const m_pContext; + boost::shared_ptr<librdf_stream> const m_pStream; + + librdf_node* getContext() const; +}; + + +// ::com::sun::star::container::XEnumeration: +::sal_Bool SAL_CALL +librdf_GraphResult::hasMoreElements() throw (uno::RuntimeException) +{ + ::osl::MutexGuard g(m_rMutex); + return m_pStream.get() && !librdf_stream_end(m_pStream.get()); +} + +librdf_node* librdf_GraphResult::getContext() const +{ + if (!m_pStream.get() || librdf_stream_end(m_pStream.get())) + return NULL; + librdf_node *pCtxt( static_cast<librdf_node *> + (librdf_stream_get_context(m_pStream.get())) ); + if (pCtxt) + return pCtxt; + return m_pContext.get(); +} + +::com::sun::star::uno::Any SAL_CALL +librdf_GraphResult::nextElement() +throw (uno::RuntimeException, container::NoSuchElementException, + lang::WrappedTargetException) +{ + ::osl::MutexGuard g(m_rMutex); + if (!m_pStream.get() || !librdf_stream_end(m_pStream.get())) { + librdf_node * pCtxt = getContext(); + + librdf_statement *pStmt( librdf_stream_get_object(m_pStream.get()) ); + if (!pStmt) { + rdf::QueryException e(::rtl::OUString::createFromAscii( + "librdf_GraphResult::nextElement: " + "librdf_stream_get_object failed"), *this); + throw lang::WrappedTargetException(::rtl::OUString::createFromAscii( + "librdf_GraphResult::nextElement: " + "librdf_stream_get_object failed"), *this, + uno::makeAny(e)); + } + // NB: pCtxt may be null here if this is result of a graph query + if (pCtxt && isInternalContext(pCtxt)) { + pCtxt = 0; // XML ID context is implementation detail! + } + rdf::Statement Stmt( + m_xRep->getTypeConverter().convertToStatement(pStmt, pCtxt) ); + // NB: this will invalidate current item. + librdf_stream_next(m_pStream.get()); + return uno::makeAny(Stmt); + } else { + throw container::NoSuchElementException(); + } +} + + +//////////////////////////////////////////////////////////////////////////// + +/** result of tuple queries ("SELECT"). + */ +class librdf_QuerySelectResult: + private boost::noncopyable, + public ::cppu::WeakImplHelper1< + rdf::XQuerySelectResult> +{ +public: + + librdf_QuerySelectResult(librdf_Repository *i_pRepository, + ::osl::Mutex & i_rMutex, + boost::shared_ptr<librdf_query> const& i_pQuery, + boost::shared_ptr<librdf_query_results> const& i_pQueryResult, + uno::Sequence< ::rtl::OUString > const& i_rBindingNames ) + : m_xRep(i_pRepository) + , m_rMutex(i_rMutex) + , m_pQuery(i_pQuery) + , m_pQueryResult(i_pQueryResult) + , m_BindingNames(i_rBindingNames) + { }; + + virtual ~librdf_QuerySelectResult() {} + + // ::com::sun::star::container::XEnumeration: + virtual ::sal_Bool SAL_CALL hasMoreElements() + throw (uno::RuntimeException); + virtual uno::Any SAL_CALL nextElement() + throw (uno::RuntimeException, container::NoSuchElementException, + lang::WrappedTargetException); + + // ::com::sun::star::rdf::XQuerySelectResult: + virtual uno::Sequence< ::rtl::OUString > SAL_CALL getBindingNames() + throw (uno::RuntimeException); + +private: + + // NB: this is not a weak pointer: streams _must_ be deleted before the + // storage they point into, so we keep the repository alive here + // also, sequence is important: the stream must be destroyed first. + ::rtl::Reference< librdf_Repository > m_xRep; + // needed for synchronizing access to librdf (it doesnt do win32 threading) + ::osl::Mutex & m_rMutex; + // not that the redland documentation spells this out explicity, but + // queries must be freed only after all the results are completely read + boost::shared_ptr<librdf_query> m_pQuery; + boost::shared_ptr<librdf_query_results> m_pQueryResult; + uno::Sequence< ::rtl::OUString > m_BindingNames; +}; + + +// ::com::sun::star::container::XEnumeration: +::sal_Bool SAL_CALL +librdf_QuerySelectResult::hasMoreElements() throw (uno::RuntimeException) +{ + ::osl::MutexGuard g(m_rMutex); + return !librdf_query_results_finished(m_pQueryResult.get()); +} + +class NodeArrayDeleter : public std::unary_function<librdf_node**, void> +{ + const int m_Count; + +public: + NodeArrayDeleter(int i_Count) : m_Count(i_Count) { } + + void operator() (librdf_node** io_pArray) const throw () + { + std::for_each(io_pArray, io_pArray + m_Count, safe_librdf_free_node); + delete[] io_pArray; + } +}; + +::com::sun::star::uno::Any SAL_CALL +librdf_QuerySelectResult::nextElement() +throw (uno::RuntimeException, container::NoSuchElementException, + lang::WrappedTargetException) +{ + ::osl::MutexGuard g(m_rMutex); + if (!librdf_query_results_finished(m_pQueryResult.get())) { + sal_Int32 count(m_BindingNames.getLength()); + OSL_ENSURE(count >= 0, "negative length?"); + boost::shared_array<librdf_node*> pNodes( new librdf_node*[count], + NodeArrayDeleter(count)); + for (int i = 0; i < count; ++i) { + pNodes[i] = 0; + } + if (librdf_query_results_get_bindings(m_pQueryResult.get(), NULL, + pNodes.get())) + { + rdf::QueryException e(::rtl::OUString::createFromAscii( + "librdf_QuerySelectResult::nextElement: " + "librdf_query_results_get_bindings failed"), *this); + throw lang::WrappedTargetException(::rtl::OUString::createFromAscii( + "librdf_QuerySelectResult::nextElement: " + "librdf_query_results_get_bindings failed"), *this, + uno::makeAny(e)); + } + uno::Sequence< uno::Reference< rdf::XNode > > ret(count); + for (int i = 0; i < count; ++i) { + ret[i] = m_xRep->getTypeConverter().convertToXNode(pNodes[i]); + } + // NB: this will invalidate current item. + librdf_query_results_next(m_pQueryResult.get()); + return uno::makeAny(ret); + } else { + throw container::NoSuchElementException(); + } +} + +// ::com::sun::star::rdf::XQuerySelectResult: +uno::Sequence< ::rtl::OUString > SAL_CALL +librdf_QuerySelectResult::getBindingNames() throw (uno::RuntimeException) +{ + return m_BindingNames; +} + + +//////////////////////////////////////////////////////////////////////////// + +/** represents a named graph, and forwards all the work to repository. + */ +class librdf_NamedGraph: + private boost::noncopyable, + public ::cppu::WeakImplHelper1< + rdf::XNamedGraph> +{ +public: + librdf_NamedGraph(librdf_Repository * i_pRep, + uno::Reference<rdf::XURI> const & i_xName) + : m_wRep(i_pRep) + , m_pRep(i_pRep) + , m_xName(i_xName) + { }; + + virtual ~librdf_NamedGraph() {} + + // ::com::sun::star::rdf::XNode: + virtual ::rtl::OUString SAL_CALL getStringValue() + throw (uno::RuntimeException); + + // ::com::sun::star::rdf::XURI: + virtual ::rtl::OUString SAL_CALL getNamespace() + throw (uno::RuntimeException); + virtual ::rtl::OUString SAL_CALL getLocalName() + throw (uno::RuntimeException); + + // ::com::sun::star::rdf::XNamedGraph: + virtual uno::Reference<rdf::XURI> SAL_CALL getName() + throw (uno::RuntimeException); + virtual void SAL_CALL clear() + throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException); + virtual void SAL_CALL addStatement( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) + throw (uno::RuntimeException, lang::IllegalArgumentException, + container::NoSuchElementException, rdf::RepositoryException); + virtual void SAL_CALL removeStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) + throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException); + virtual uno::Reference< container::XEnumeration > SAL_CALL getStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) + throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException); + +private: + + /// weak reference: this is needed to check if m_pRep is valid + uno::WeakReference< rdf::XRepository > m_wRep; + librdf_Repository *m_pRep; + uno::Reference< rdf::XURI > m_xName; +}; + + +// ::com::sun::star::rdf::XNode: +::rtl::OUString SAL_CALL librdf_NamedGraph::getStringValue() +throw (uno::RuntimeException) +{ + return m_xName->getStringValue(); +} + +// ::com::sun::star::rdf::XURI: +::rtl::OUString SAL_CALL librdf_NamedGraph::getNamespace() +throw (uno::RuntimeException) +{ + return m_xName->getNamespace(); +} + +::rtl::OUString SAL_CALL librdf_NamedGraph::getLocalName() +throw (uno::RuntimeException) +{ + return m_xName->getLocalName(); +} + +// ::com::sun::star::rdf::XNamedGraph: +uno::Reference< rdf::XURI > SAL_CALL librdf_NamedGraph::getName() +throw (uno::RuntimeException) +{ + return m_xName; +} + +void SAL_CALL librdf_NamedGraph::clear() +throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException) +{ + uno::Reference< rdf::XRepository > xRep( m_wRep ); + if (!xRep.is()) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_NamedGraph::clear: repository is gone"), *this); + } + try { + m_pRep->clearGraph(m_xName); + } catch (lang::IllegalArgumentException &) { + throw uno::RuntimeException(); + } +} + +void SAL_CALL librdf_NamedGraph::addStatement( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) +throw (uno::RuntimeException, lang::IllegalArgumentException, + container::NoSuchElementException, rdf::RepositoryException) +{ + uno::Reference< rdf::XRepository > xRep( m_wRep ); + if (!xRep.is()) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_NamedGraph::addStatement: repository is gone"), *this); + } + m_pRep->addStatementGraph(i_xSubject, i_xPredicate, i_xObject, m_xName); +} + +void SAL_CALL librdf_NamedGraph::removeStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) +throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException) +{ + uno::Reference< rdf::XRepository > xRep( m_wRep ); + if (!xRep.is()) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_NamedGraph::removeStatements: repository is gone"), *this); + } + m_pRep->removeStatementsGraph(i_xSubject, i_xPredicate, i_xObject, m_xName); +} + +uno::Reference< container::XEnumeration > SAL_CALL +librdf_NamedGraph::getStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) +throw (uno::RuntimeException, + container::NoSuchElementException, rdf::RepositoryException) +{ + uno::Reference< rdf::XRepository > xRep( m_wRep ); + if (!xRep.is()) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_NamedGraph::getStatements: repository is gone"), *this); + } + return m_pRep->getStatementsGraph( + i_xSubject, i_xPredicate, i_xObject, m_xName); +} + + +//////////////////////////////////////////////////////////////////////////// + +boost::shared_ptr<librdf_world> librdf_Repository::m_pWorld; +sal_uInt32 librdf_Repository::m_NumInstances = 0; +osl::Mutex librdf_Repository::m_aMutex; + +librdf_Repository::librdf_Repository( + uno::Reference< uno::XComponentContext > const & i_xContext) + : /*BaseMutex(),*/ m_xContext(i_xContext) +// m_pWorld (static_cast<librdf_world *>(0), safe_librdf_free_world ), + , m_pStorage(static_cast<librdf_storage*>(0), safe_librdf_free_storage) + , m_pModel (static_cast<librdf_model *>(0), safe_librdf_free_model ) + , m_NamedGraphs() + , m_TypeConverter(i_xContext, *this) +{ + OSL_ENSURE(i_xContext.is(), "librdf_Repository: null context"); + + ::osl::MutexGuard g(m_aMutex); + if (!m_NumInstances++) { + m_pWorld.reset(m_TypeConverter.createWorld(), safe_librdf_free_world); + } +} + +librdf_Repository::~librdf_Repository() +{ + // must destroy these before world! + m_pModel.reset(); + m_pStorage.reset(); + + // FIXME: so it turns out that calling librdf_free_world will + // (via raptor_sax2_finish) call xmlCleanupParser, which will + // free libxml2's globals! ARRRGH!!! => never call librdf_free_world +#if 0 + ::osl::MutexGuard g(m_aMutex); + if (!--m_NumInstances) { + m_pWorld.reset(); + } +#endif +} + +// com.sun.star.uno.XServiceInfo: +::rtl::OUString SAL_CALL librdf_Repository::getImplementationName() +throw (uno::RuntimeException) +{ + return comp_librdf_Repository::_getImplementationName(); +} + +::sal_Bool SAL_CALL librdf_Repository::supportsService( + ::rtl::OUString const & serviceName) throw (uno::RuntimeException) +{ + uno::Sequence< ::rtl::OUString > serviceNames + = comp_librdf_Repository::_getSupportedServiceNames(); + for (::sal_Int32 i = 0; i < serviceNames.getLength(); ++i) { + if (serviceNames[i] == serviceName) + return sal_True; + } + return sal_False; +} + +uno::Sequence< ::rtl::OUString > SAL_CALL +librdf_Repository::getSupportedServiceNames() throw (uno::RuntimeException) +{ + return comp_librdf_Repository::_getSupportedServiceNames(); +} + +// ::com::sun::star::rdf::XRepository: +uno::Reference< rdf::XBlankNode > SAL_CALL librdf_Repository::createBlankNode() +throw (uno::RuntimeException) +{ + ::osl::MutexGuard g(m_aMutex); + const boost::shared_ptr<librdf_node> pNode( + librdf_new_node_from_blank_identifier(m_pWorld.get(), NULL), + safe_librdf_free_node); + if (!pNode) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::createBlankNode: " + "librdf_new_node_from_blank_identifier failed"), *this); + } + const unsigned char * id (librdf_node_get_blank_identifier(pNode.get())); + if (!id) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::createBlankNode: " + "librdf_node_get_blank_identifier failed"), *this); + } + const ::rtl::OUString nodeID(::rtl::OUString::createFromAscii( + reinterpret_cast<const char *>(id))); + try { + return rdf::BlankNode::create(m_xContext, nodeID); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::createBlankNode: " + "illegal blank node label"), *this, uno::makeAny(iae)); + } +} + +bool formatNeedsBaseURI(::sal_Int16 i_Format) +{ + (void) i_Format; //FIXME any which dont? + return true; +} + +//void SAL_CALL +uno::Reference<rdf::XNamedGraph> SAL_CALL +librdf_Repository::importGraph(::sal_Int16 i_Format, + const uno::Reference< io::XInputStream > & i_xInStream, + const uno::Reference< rdf::XURI > & i_xGraphName, + const uno::Reference< rdf::XURI > & i_xBaseURI) +throw (uno::RuntimeException, lang::IllegalArgumentException, + datatransfer::UnsupportedFlavorException, + container::ElementExistException, rdf::ParseException, + rdf::RepositoryException, io::IOException) +{ + ::osl::MutexGuard g(m_aMutex); + if (!i_xInStream.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "stream is null"), *this, 1); + } + //FIXME: other formats + if (i_Format != rdf::FileFormat::RDF_XML) { + throw datatransfer::UnsupportedFlavorException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "file format not supported"), *this); + } + if (!i_xGraphName.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "graph name is null"), *this, 2); + } + if (i_xGraphName->getStringValue().matchAsciiL(s_nsOOo, sizeof(s_nsOOo)-1)) + { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "URI is reserved"), *this, 0); + } + if (formatNeedsBaseURI(i_Format) && !i_xBaseURI.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "base URI is null"), *this, 3); + } + OSL_ENSURE(i_xBaseURI.is(), "no base uri"); + const ::rtl::OUString baseURIU( i_xBaseURI->getStringValue() ); + if (baseURIU.indexOf('#') >= 0) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "base URI is not absolute"), *this, 3); + } + + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (m_NamedGraphs.find(contextU) != m_NamedGraphs.end()) { + throw container::ElementExistException( + ::rtl::OUString::createFromAscii("librdf_Repository::importGraph: " + "graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::importGraph: " + "librdf_new_node_from_uri_string failed"), *this); + } + + const ::rtl::OString baseURI( + ::rtl::OUStringToOString(baseURIU, RTL_TEXTENCODING_UTF8) ); + const boost::shared_ptr<librdf_uri> pBaseURI( + librdf_new_uri(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (baseURI.getStr())), + safe_librdf_free_uri); + if (!pBaseURI) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::importGraph: " + "librdf_new_uri failed"), *this); + } + + const boost::shared_ptr<librdf_parser> pParser( + librdf_new_parser(m_pWorld.get(), "rdfxml", NULL, NULL), + safe_librdf_free_parser); + if (!pParser) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::importGraph: " + "librdf_new_parser failed"), *this); + } + + uno::Sequence<sal_Int8> buf; + uno::Reference<io::XSeekable> xSeekable(i_xInStream, uno::UNO_QUERY); + // UGLY: if only that redland junk could read streams... + const sal_Int64 sz( xSeekable.is() ? xSeekable->getLength() : 1 << 20 ); + // exceptions are propagated + i_xInStream->readBytes( buf, static_cast<sal_Int32>( sz ) ); + const boost::shared_ptr<librdf_stream> pStream( + librdf_parser_parse_counted_string_as_stream(pParser.get(), + reinterpret_cast<const unsigned char*>(buf.getConstArray()), + buf.getLength(), pBaseURI.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::ParseException(::rtl::OUString::createFromAscii( + "librdf_Repository::importGraph: " + "librdf_parser_parse_counted_string_as_stream failed"), *this); + } + m_NamedGraphs.insert(std::make_pair(contextU, + new librdf_NamedGraph(this, i_xGraphName))); + if (librdf_model_context_add_statements(m_pModel.get(), + pContext.get(), pStream.get())) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::importGraph: " + "librdf_model_context_add_statements failed"), *this); + } + return getGraph(i_xGraphName); +} + +void SAL_CALL +librdf_Repository::exportGraph(::sal_Int16 i_Format, + const uno::Reference< io::XOutputStream > & i_xOutStream, + const uno::Reference< rdf::XURI > & i_xGraphName, + const uno::Reference< rdf::XURI > & i_xBaseURI) +throw (uno::RuntimeException, lang::IllegalArgumentException, + datatransfer::UnsupportedFlavorException, + container::NoSuchElementException, rdf::RepositoryException, + io::IOException) +{ + ::osl::MutexGuard g(m_aMutex); + if (!i_xOutStream.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "stream is null"), *this, 1); + } + // FIXME: other formats + if (i_Format != rdf::FileFormat::RDF_XML) { + throw datatransfer::UnsupportedFlavorException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "file format not supported"), *this); + } + if (!i_xGraphName.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "graph name is null"), *this, 2); + } + if (formatNeedsBaseURI(i_Format) && !i_xBaseURI.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "base URI is null"), *this, 3); + } + OSL_ENSURE(i_xBaseURI.is(), "no base uri"); + const ::rtl::OUString baseURIU( i_xBaseURI->getStringValue() ); + if (baseURIU.indexOf('#') >= 0) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "base URI is not absolute"), *this, 3); + } + + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (m_NamedGraphs.find(contextU) == m_NamedGraphs.end()) { + throw container::NoSuchElementException( + ::rtl::OUString::createFromAscii("librdf_Repository::exportGraph: " + "no graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_new_node_from_uri_string failed"), *this); + } + const ::rtl::OString baseURI( + ::rtl::OUStringToOString(baseURIU, RTL_TEXTENCODING_UTF8) ); + const boost::shared_ptr<librdf_uri> pBaseURI( + librdf_new_uri(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (baseURI.getStr())), + safe_librdf_free_uri); + if (!pBaseURI) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_new_uri failed"), *this); + } + + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_context_as_stream(m_pModel.get(), pContext.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_model_context_as_stream failed"), *this); + } +// const char *format("rdfxml"); + const char *format("rdfxml-abbrev"); + const boost::shared_ptr<librdf_serializer> pSerializer( + librdf_new_serializer(m_pWorld.get(), format, NULL, NULL), + safe_librdf_free_serializer); + if (!pSerializer) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_new_serializer failed"), *this); + } + + const boost::shared_ptr<librdf_uri> pRelativeURI( + librdf_new_uri(m_pWorld.get(), reinterpret_cast<const unsigned char*> + ("http://feature.librdf.org/raptor-relativeURIs")), + safe_librdf_free_uri); + const boost::shared_ptr<librdf_uri> pWriteBaseURI( + librdf_new_uri(m_pWorld.get(), reinterpret_cast<const unsigned char*> + ("http://feature.librdf.org/raptor-writeBaseURI")), + safe_librdf_free_uri); + const boost::shared_ptr<librdf_node> p0( + librdf_new_node_from_literal(m_pWorld.get(), + reinterpret_cast<const unsigned char*> ("0"), NULL, 0), + safe_librdf_free_node); + const boost::shared_ptr<librdf_node> p1( + librdf_new_node_from_literal(m_pWorld.get(), + reinterpret_cast<const unsigned char*> ("1"), NULL, 0), + safe_librdf_free_node); + if (!pWriteBaseURI || !pRelativeURI || !p0 || !p1) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_new_uri or librdf_new_node_from_literal failed"), *this); + } + + // make URIs relative to base URI + if (librdf_serializer_set_feature(pSerializer.get(), + pRelativeURI.get(), p1.get())) + { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_serializer_set_feature relativeURIs failed"), *this); + } + // but do not write the base URI to the file! + if (librdf_serializer_set_feature(pSerializer.get(), + pWriteBaseURI.get(), p0.get())) + { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_serializer_set_feature writeBaseURI failed"), *this); + } + + size_t length; + const boost::shared_ptr<unsigned char> pBuf( + librdf_serializer_serialize_stream_to_counted_string( + pSerializer.get(), pBaseURI.get(), pStream.get(), &length), free); + if (!pBuf) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::exportGraph: " + "librdf_serializer_serialize_stream_to_counted_string failed"), + *this); + } + const uno::Sequence<sal_Int8> buf( + reinterpret_cast<sal_Int8*>(pBuf.get()), length); + // exceptions are propagated + i_xOutStream->writeBytes(buf); +} + +uno::Sequence< uno::Reference< rdf::XURI > > SAL_CALL +librdf_Repository::getGraphNames() +throw (uno::RuntimeException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + ::comphelper::SequenceAsVector< uno::Reference<rdf::XURI> > ret; + std::transform(m_NamedGraphs.begin(), m_NamedGraphs.end(), + std::back_inserter(ret), + boost::bind(&rdf::XNamedGraph::getName, + boost::bind(&NamedGraphMap_t::value_type::second, _1))); + return ret.getAsConstList(); +} + +uno::Reference< rdf::XNamedGraph > SAL_CALL +librdf_Repository::getGraph(const uno::Reference< rdf::XURI > & i_xGraphName) +throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + if (!i_xGraphName.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::getGraph: " + "URI is null"), *this, 0); + } + const NamedGraphMap_t::iterator iter( + m_NamedGraphs.find(i_xGraphName->getStringValue()) ); + if (iter != m_NamedGraphs.end()) { + return uno::Reference<rdf::XNamedGraph>(iter->second.get()); + } else { + return 0; + } +} + +uno::Reference< rdf::XNamedGraph > SAL_CALL +librdf_Repository::createGraph(const uno::Reference< rdf::XURI > & i_xGraphName) +throw (uno::RuntimeException, lang::IllegalArgumentException, + container::ElementExistException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + if (!i_xGraphName.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::createGraph: " + "URI is null"), *this, 0); + } + if (i_xGraphName->getStringValue().matchAsciiL(s_nsOOo, sizeof(s_nsOOo)-1)) + { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::createGraph: " + "URI is reserved"), *this, 0); + } + + // NB: librdf does not have a concept of graphs as such; + // a librdf named graph exists iff the model contains a statement with + // the graph name as context + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (m_NamedGraphs.find(contextU) != m_NamedGraphs.end()) { + throw container::ElementExistException( + ::rtl::OUString::createFromAscii("librdf_Repository::createGraph: " + "graph with given URI exists"), *this); + } + m_NamedGraphs.insert(std::make_pair(contextU, + new librdf_NamedGraph(this, i_xGraphName))); + return uno::Reference<rdf::XNamedGraph>( + m_NamedGraphs.find(contextU)->second.get()); +} + +void SAL_CALL +librdf_Repository::destroyGraph( + const uno::Reference< rdf::XURI > & i_xGraphName) +throw (uno::RuntimeException, lang::IllegalArgumentException, + container::NoSuchElementException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + const NamedGraphMap_t::iterator iter( clearGraph(i_xGraphName) ); + m_NamedGraphs.erase(iter); +} + +static bool isMetadatableWithoutMetadata( + uno::Reference<uno::XInterface> const & i_xNode) +{ + const uno::Reference<rdf::XMetadatable> xMeta( i_xNode, uno::UNO_QUERY ); + return (xMeta.is() && !xMeta->getMetadataReference().Second.getLength()); +} + +uno::Reference< container::XEnumeration > SAL_CALL +librdf_Repository::getStatements( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) +throw (uno::RuntimeException, rdf::RepositoryException) +{ + if (isMetadatableWithoutMetadata(i_xSubject) || + isMetadatableWithoutMetadata(i_xPredicate) || + isMetadatableWithoutMetadata(i_xObject)) + { + return new librdf_GraphResult(this, m_aMutex, + ::boost::shared_ptr<librdf_stream>(), + ::boost::shared_ptr<librdf_node>()); + } + + ::osl::MutexGuard g(m_aMutex); + const boost::shared_ptr<librdf_statement> pStatement( + m_TypeConverter.mkStatement(m_pWorld.get(), + i_xSubject, i_xPredicate, i_xObject), + safe_librdf_free_statement); + OSL_ENSURE(pStatement, "mkStatement failed"); + + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_find_statements(m_pModel.get(), pStatement.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatements: " + "librdf_model_find_statements failed"), *this); + } + + return new librdf_GraphResult(this, m_aMutex, pStream, + ::boost::shared_ptr<librdf_node>()); +} + + +uno::Reference< rdf::XQuerySelectResult > SAL_CALL +librdf_Repository::querySelect(const ::rtl::OUString & i_rQuery) +throw (uno::RuntimeException, rdf::QueryException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OString query( + ::rtl::OUStringToOString(i_rQuery, RTL_TEXTENCODING_UTF8) ); + const boost::shared_ptr<librdf_query> pQuery( + librdf_new_query(m_pWorld.get(), s_sparql, NULL, + reinterpret_cast<const unsigned char*> (query.getStr()), NULL), + safe_librdf_free_query); + if (!pQuery) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::querySelect: " + "librdf_new_query failed"), *this); + } + const boost::shared_ptr<librdf_query_results> pResults( + librdf_model_query_execute(m_pModel.get(), pQuery.get()), + safe_librdf_free_query_results); + if (!pResults || !librdf_query_results_is_bindings(pResults.get())) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::querySelect: " + "query result is null or not bindings"), *this); + } + + const int count( librdf_query_results_get_bindings_count(pResults.get()) ); + if (count >= 0) { + uno::Sequence< ::rtl::OUString > names(count); + for (int i = 0; i < count; ++i) { + const char* name( librdf_query_results_get_binding_name( + pResults.get(), i) ); + if (!name) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::querySelect: " + "binding is null"), *this); + } + + names[i] = ::rtl::OUString::createFromAscii(name); + } + + return new librdf_QuerySelectResult(this, m_aMutex, + pQuery, pResults, names); + + } else { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::querySelect: " + "librdf_query_results_get_bindings_count failed"), *this); + } +} + +uno::Reference< container::XEnumeration > SAL_CALL +librdf_Repository::queryConstruct(const ::rtl::OUString & i_rQuery) +throw (uno::RuntimeException, rdf::QueryException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OString query( + ::rtl::OUStringToOString(i_rQuery, RTL_TEXTENCODING_UTF8) ); + const boost::shared_ptr<librdf_query> pQuery( + librdf_new_query(m_pWorld.get(), s_sparql, NULL, + reinterpret_cast<const unsigned char*> (query.getStr()), NULL), + safe_librdf_free_query); + if (!pQuery) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::queryConstruct: " + "librdf_new_query failed"), *this); + } + const boost::shared_ptr<librdf_query_results> pResults( + librdf_model_query_execute(m_pModel.get(), pQuery.get()), + safe_librdf_free_query_results); + if (!pResults || !librdf_query_results_is_graph(pResults.get())) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::queryConstruct: " + "query result is null or not graph"), *this); + } + const boost::shared_ptr<librdf_stream> pStream( + librdf_query_results_as_stream(pResults.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::queryConstruct: " + "librdf_query_results_as_stream failed"), *this); + } + + return new librdf_GraphResult(this, m_aMutex, pStream, + ::boost::shared_ptr<librdf_node>(), pQuery); +} + +::sal_Bool SAL_CALL +librdf_Repository::queryAsk(const ::rtl::OUString & i_rQuery) +throw (uno::RuntimeException, rdf::QueryException, rdf::RepositoryException) +{ + ::osl::MutexGuard g(m_aMutex); + + const ::rtl::OString query( + ::rtl::OUStringToOString(i_rQuery, RTL_TEXTENCODING_UTF8) ); + const boost::shared_ptr<librdf_query> pQuery( + librdf_new_query(m_pWorld.get(), s_sparql, NULL, + reinterpret_cast<const unsigned char*> (query.getStr()), NULL), + safe_librdf_free_query); + if (!pQuery) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::queryAsk: " + "librdf_new_query failed"), *this); + } + const boost::shared_ptr<librdf_query_results> pResults( + librdf_model_query_execute(m_pModel.get(), pQuery.get()), + safe_librdf_free_query_results); + if (!pResults || !librdf_query_results_is_boolean(pResults.get())) { + throw rdf::QueryException(::rtl::OUString::createFromAscii( + "librdf_Repository::queryAsk: " + "query result is null or not boolean"), *this); + } + return librdf_query_results_get_boolean(pResults.get()) + ? sal_True : sal_False; +} + +// ::com::sun::star::rdf::XDocumentRepository: +void SAL_CALL librdf_Repository::setStatementRDFa( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Sequence< uno::Reference< rdf::XURI > > & i_rPredicates, + const uno::Reference< rdf::XMetadatable > & i_xObject, + const ::rtl::OUString & i_rRDFaContent, + const uno::Reference< rdf::XURI > & i_xRDFaDatatype) +throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException) +{ + static const ::rtl::OUString s_cell( + ::rtl::OUString::createFromAscii("com.sun.star.table.Cell")); + static const ::rtl::OUString s_cellprops( // for writer + ::rtl::OUString::createFromAscii("com.sun.star.text.CellProperties")); + static const ::rtl::OUString s_paragraph( + ::rtl::OUString::createFromAscii("com.sun.star.text.Paragraph")); + static const ::rtl::OUString s_bookmark( + ::rtl::OUString::createFromAscii("com.sun.star.text.Bookmark")); + static const ::rtl::OUString s_meta( ::rtl::OUString::createFromAscii( + "com.sun.star.text.InContentMetadata")); + + if (!i_xSubject.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: Subject is null"), *this, 0); + } + if (!i_rPredicates.getLength()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: no Predicates"), + *this, 1); + } + for (sal_Int32 i = 0; i < i_rPredicates.getLength(); ++i) { + if (!i_rPredicates[i].is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: Predicate is null"), + *this, 1); + } + } + if (!i_xObject.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: Object is null"), *this, 2); + } + const uno::Reference<lang::XServiceInfo> xService(i_xObject, + uno::UNO_QUERY_THROW); + uno::Reference<text::XTextRange> xTextRange; + if (xService->supportsService(s_cell) || + xService->supportsService(s_cellprops) || + xService->supportsService(s_paragraph)) + { + xTextRange.set(i_xObject, uno::UNO_QUERY_THROW); + } + else if (xService->supportsService(s_bookmark) || + xService->supportsService(s_meta)) + { + const uno::Reference<text::XTextContent> xTextContent(i_xObject, + uno::UNO_QUERY_THROW); + xTextRange = xTextContent->getAnchor(); + } + if (!xTextRange.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: " + "Object does not support RDFa"), *this, 2); + } + // ensure that the metadatable has an XML ID + i_xObject->ensureMetadataReference(); + const beans::StringPair mdref( i_xObject->getMetadataReference() ); + if (mdref.First.equalsAscii("") || mdref.Second.equalsAscii("")) { + throw uno::RuntimeException( ::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: " + "ensureMetadataReference did not"), *this); + } + ::rtl::OUString const sXmlId(mdref.First + + ::rtl::OUString::createFromAscii("#") + mdref.Second); + uno::Reference<rdf::XURI> xXmlId; + try { + xXmlId.set( rdf::URI::create(m_xContext, + ::rtl::OUString::createFromAscii(s_nsOOo) + sXmlId), + uno::UNO_QUERY_THROW); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: " + "cannot create URI for XML ID"), *this, uno::makeAny(iae)); + } + + ::osl::MutexGuard g(m_aMutex); + ::rtl::OUString const content( (i_rRDFaContent.getLength() == 0) + ? xTextRange->getString() + : i_rRDFaContent ); + uno::Reference<rdf::XNode> xContent; + try { + if (i_xRDFaDatatype.is()) { + xContent.set(rdf::Literal::createWithType(m_xContext, + content, i_xRDFaDatatype), + uno::UNO_QUERY_THROW); + } else { + xContent.set(rdf::Literal::create(m_xContext, content), + uno::UNO_QUERY_THROW); + } + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::setStatementRDFa: " + "cannot create literal"), *this, uno::makeAny(iae)); + } + removeStatementRDFa(i_xObject); + if (i_rRDFaContent.getLength() == 0) { + m_RDFaXHTMLContentSet.erase(sXmlId); + } else { + m_RDFaXHTMLContentSet.insert(sXmlId); + } + ::std::for_each(::comphelper::stl_begin(i_rPredicates), + ::comphelper::stl_end(i_rPredicates), + ::boost::bind( &librdf_Repository::addStatementGraph, + this, i_xSubject, _1, xContent, xXmlId, true)); +} + +void SAL_CALL librdf_Repository::removeStatementRDFa( + const uno::Reference< rdf::XMetadatable > & i_xElement) +throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException) +{ + if (!i_xElement.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatementRDFa: Element is null"), + *this, 0); + } + + const beans::StringPair mdref( i_xElement->getMetadataReference() ); + if (mdref.First.equalsAscii("") || mdref.Second.equalsAscii("")) { + return; // nothing to do... + } + uno::Reference<rdf::XURI> xXmlId; + try { + xXmlId.set( rdf::URI::create(m_xContext, + ::rtl::OUString::createFromAscii(s_nsOOo) + + mdref.First + ::rtl::OUString::createFromAscii("#") + + mdref.Second), + uno::UNO_QUERY_THROW); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatementRDFa: " + "cannot create URI for XML ID"), *this, uno::makeAny(iae)); + } + // clearGraph does locking, not needed here + clearGraph(xXmlId, true); +} + +beans::Pair< uno::Sequence<rdf::Statement>, sal_Bool > SAL_CALL +librdf_Repository::getStatementRDFa( + const uno::Reference< rdf::XMetadatable > & i_xElement) +throw (uno::RuntimeException, lang::IllegalArgumentException, + rdf::RepositoryException) +{ + if (!i_xElement.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatementRDFa: Element is null"), *this, 0); + } + const beans::StringPair mdref( i_xElement->getMetadataReference() ); + if (mdref.First.equalsAscii("") || mdref.Second.equalsAscii("")) { + return beans::Pair< uno::Sequence<rdf::Statement>, sal_Bool >(); + } + ::rtl::OUString const sXmlId(mdref.First + + ::rtl::OUString::createFromAscii("#") + mdref.Second); + uno::Reference<rdf::XURI> xXmlId; + try { + xXmlId.set( rdf::URI::create(m_xContext, + ::rtl::OUString::createFromAscii(s_nsOOo) + sXmlId), + uno::UNO_QUERY_THROW); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::getStatementRDFa: " + "cannot create URI for XML ID"), *this, uno::makeAny(iae)); + } + + ::osl::MutexGuard g(m_aMutex); + ::comphelper::SequenceAsVector< rdf::Statement > ret; + const uno::Reference<container::XEnumeration> xIter( + getStatementsGraph(0, 0, 0, xXmlId, true) ); + OSL_ENSURE(xIter.is(), "getStatementRDFa: no result?"); + if (!xIter.is()) throw uno::RuntimeException(); + while (xIter->hasMoreElements()) { + rdf::Statement stmt; + if (!(xIter->nextElement() >>= stmt)) { + OSL_ENSURE(false, "getStatementRDFa: result of wrong type?"); + } else { + ret.push_back(stmt); + } + } + return beans::Pair< uno::Sequence<rdf::Statement>, sal_Bool >( + ret.getAsConstList(), 0 != m_RDFaXHTMLContentSet.count(sXmlId)); +} + +extern "C" +librdf_statement *rdfa_context_stream_map_handler( + librdf_stream *i_pStream, void *, librdf_statement *i_pStatement) +{ + OSL_ENSURE(i_pStream, "rdfa_context_stream_map_handler: stream null"); + if (i_pStream) { + librdf_node *pCtxt( static_cast<librdf_node *> + (librdf_stream_get_context(i_pStream)) ); + OSL_ENSURE(pCtxt, "rdfa_context_stream_map_handler: context null"); + if (pCtxt && isInternalContext(pCtxt)) { + return i_pStatement; + } + } + return 0; +}; + +uno::Reference< container::XEnumeration > SAL_CALL +librdf_Repository::getStatementsRDFa( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) +throw (uno::RuntimeException, rdf::RepositoryException) +{ + if (isMetadatableWithoutMetadata(i_xSubject) || + isMetadatableWithoutMetadata(i_xPredicate) || + isMetadatableWithoutMetadata(i_xObject)) + { + return new librdf_GraphResult(this, m_aMutex, + ::boost::shared_ptr<librdf_stream>(), + ::boost::shared_ptr<librdf_node>()); + } + + ::osl::MutexGuard g(m_aMutex); + const boost::shared_ptr<librdf_statement> pStatement( + m_TypeConverter.mkStatement(m_pWorld.get(), + i_xSubject, i_xPredicate, i_xObject), + safe_librdf_free_statement); + OSL_ENSURE(pStatement, "mkStatement failed"); + + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_find_statements(m_pModel.get(), pStatement.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatementsRDFa: " + "librdf_model_find_statements failed"), *this); + } + + if (librdf_stream_add_map(pStream.get(), rdfa_context_stream_map_handler, + 0, 0)) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatementsRDFa: " + "librdf_stream_add_map failed"), *this); + } + + return new librdf_GraphResult(this, m_aMutex, pStream, + ::boost::shared_ptr<librdf_node>()); +} + +// ::com::sun::star::lang::XInitialization: +void SAL_CALL librdf_Repository::initialize( + const uno::Sequence< ::com::sun::star::uno::Any > & i_rArguments) +throw (uno::RuntimeException, uno::Exception) +{ + (void) i_rArguments; + + ::osl::MutexGuard g(m_aMutex); + +// m_pWorld.reset(m_TypeConverter.createWorld(), safe_librdf_free_world); + m_pStorage.reset(m_TypeConverter.createStorage(m_pWorld.get()), + safe_librdf_free_storage); + m_pModel.reset(m_TypeConverter.createModel( + m_pWorld.get(), m_pStorage.get()), safe_librdf_free_model); +} + +const NamedGraphMap_t::iterator SAL_CALL librdf_Repository::clearGraph( + const uno::Reference< rdf::XURI > & i_xGraphName, bool i_Internal) +// throw (uno::RuntimeException, container::NoSuchElementException, +// rdf::RepositoryException) +{ + if (!i_xGraphName.is()) { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("librdf_Repository::clearGraph: " + "URI is null"), *this, 0); + } + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + const NamedGraphMap_t::iterator iter( m_NamedGraphs.find(contextU) ); + if (!i_Internal && iter == m_NamedGraphs.end()) { + throw container::NoSuchElementException( + ::rtl::OUString::createFromAscii("librdf_Repository::clearGraph: " + "no graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::clearGraph: " + "librdf_new_node_from_uri_string failed"), *this); + } + if (librdf_model_context_remove_statements(m_pModel.get(), pContext.get())) + { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::clearGraph: " + "librdf_model_context_remove_statements failed"), *this); + } + return iter; +} + +void SAL_CALL librdf_Repository::addStatementGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xGraphName, + bool i_Internal) +//throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException) +{ + if (!i_xSubject.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::addStatement: Subject is null"), *this, 0); + } + if (!i_xPredicate.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::addStatement: Predicate is null"), + *this, 1); + } + if (!i_xObject.is()) { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "librdf_Repository::addStatement: Object is null"), *this, 2); + } + + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (!i_Internal && (m_NamedGraphs.find(contextU) == m_NamedGraphs.end())) { + throw container::NoSuchElementException( + ::rtl::OUString::createFromAscii("librdf_Repository::addStatement: " + "no graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::addStatement: " + "librdf_new_node_from_uri_string failed"), *this); + } + const boost::shared_ptr<librdf_statement> pStatement( + m_TypeConverter.mkStatement(m_pWorld.get(), + i_xSubject, i_xPredicate, i_xObject), + safe_librdf_free_statement); + OSL_ENSURE(pStatement, "mkStatement failed"); + + // Test for duplicate statement + // librdf_model_add_statement disallows duplicates while + // librdf_model_context_add_statement allows duplicates + { + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_find_statements_in_context(m_pModel.get(), + pStatement.get(), pContext.get()), + safe_librdf_free_stream); + if (pStream && !librdf_stream_end(pStream.get())) + return; + } + + if (librdf_model_context_add_statement(m_pModel.get(), + pContext.get(), pStatement.get())) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::addStatement: " + "librdf_model_context_add_statement failed"), *this); + } +} + +void SAL_CALL librdf_Repository::removeStatementsGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xGraphName) +//throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException) +{ + if (isMetadatableWithoutMetadata(i_xSubject) || + isMetadatableWithoutMetadata(i_xPredicate) || + isMetadatableWithoutMetadata(i_xObject)) + { + return; + } + + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (m_NamedGraphs.find(contextU) == m_NamedGraphs.end()) { + throw container::NoSuchElementException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatements: " + "no graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatements: " + "librdf_new_node_from_uri_string failed"), *this); + } + const boost::shared_ptr<librdf_statement> pStatement( + m_TypeConverter.mkStatement(m_pWorld.get(), + i_xSubject, i_xPredicate, i_xObject), + safe_librdf_free_statement); + OSL_ENSURE(pStatement, "mkStatement failed"); + + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_find_statements_in_context(m_pModel.get(), + pStatement.get(), pContext.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatements: " + "librdf_model_find_statements_in_context failed"), *this); + } + + if (!librdf_stream_end(pStream.get())) { + do { + librdf_statement *pStmt( librdf_stream_get_object(pStream.get()) ); + if (!pStmt) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatements: " + "librdf_stream_get_object failed"), *this); + } + if (librdf_model_context_remove_statement(m_pModel.get(), + pContext.get(), pStmt)) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::removeStatements: " + "librdf_model_context_remove_statement failed"), *this); + } + } while (!librdf_stream_next(pStream.get())); + } +} + +uno::Reference< container::XEnumeration > SAL_CALL +librdf_Repository::getStatementsGraph( + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject, + const uno::Reference< rdf::XURI > & i_xGraphName, + bool i_Internal) +//throw (uno::RuntimeException, lang::IllegalArgumentException, +// container::NoSuchElementException, rdf::RepositoryException) +{ + // N.B.: if any of subject, predicate, object is an XMetadatable, and + // has no metadata reference, then there cannot be any node in the graph + // representing it; in order to prevent side effect + // (ensureMetadataReference), check for this condition and return + if (isMetadatableWithoutMetadata(i_xSubject) || + isMetadatableWithoutMetadata(i_xPredicate) || + isMetadatableWithoutMetadata(i_xObject)) + { + return new librdf_GraphResult(this, m_aMutex, + ::boost::shared_ptr<librdf_stream>(), + ::boost::shared_ptr<librdf_node>()); + } + + ::osl::MutexGuard g(m_aMutex); + const ::rtl::OUString contextU( i_xGraphName->getStringValue() ); + if (!i_Internal && (m_NamedGraphs.find(contextU) == m_NamedGraphs.end())) { + throw container::NoSuchElementException( + ::rtl::OUString::createFromAscii( + "librdf_Repository::getStatements: " + "no graph with given URI exists"), *this); + } + const ::rtl::OString context( + ::rtl::OUStringToOString(contextU, RTL_TEXTENCODING_UTF8) ); + + const boost::shared_ptr<librdf_node> pContext( + librdf_new_node_from_uri_string(m_pWorld.get(), + reinterpret_cast<const unsigned char*> (context.getStr())), + safe_librdf_free_node); + if (!pContext) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatements: " + "librdf_new_node_from_uri_string failed"), *this); + } + const boost::shared_ptr<librdf_statement> pStatement( + m_TypeConverter.mkStatement(m_pWorld.get(), + i_xSubject, i_xPredicate, i_xObject), + safe_librdf_free_statement); + OSL_ENSURE(pStatement, "mkStatement failed"); + + const boost::shared_ptr<librdf_stream> pStream( + librdf_model_find_statements_in_context(m_pModel.get(), + pStatement.get(), pContext.get()), + safe_librdf_free_stream); + if (!pStream) { + throw rdf::RepositoryException(::rtl::OUString::createFromAscii( + "librdf_Repository::getStatements: " + "librdf_model_find_statements_in_context failed"), *this); + } + + // librdf_model_find_statements_in_context is buggy and does not put + // the context into result statements; pass it to librdf_GraphResult here + return new librdf_GraphResult(this, m_aMutex, pStream, pContext); +} + +librdf_world *librdf_TypeConverter::createWorld() const +{ + // create and initialize world + librdf_world *pWorld( librdf_new_world() ); + if (!pWorld) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::createWorld: librdf_new_world failed"), + m_rRep); + } + //FIXME logger, digest, features? + xsltSecurityPrefsPtr origprefs = xsltGetDefaultSecurityPrefs(); + librdf_world_open(pWorld); + xsltSecurityPrefsPtr newprefs = xsltGetDefaultSecurityPrefs(); + if (newprefs != origprefs) { + // #i110523# restore libxslt global configuration + // (gratuitously overwritten by raptor_init_parser_grddl_common) + // (this is the only reason unordf is linked against libxslt) + xsltSetDefaultSecurityPrefs(origprefs); + } + return pWorld; +} + +librdf_storage * +librdf_TypeConverter::createStorage(librdf_world *i_pWorld) const +{ + librdf_storage *pStorage( +// librdf_new_storage(i_pWorld, "memory", NULL, "contexts='yes'") ); + librdf_new_storage(i_pWorld, "hashes", NULL, + "contexts='yes',hash-type='memory'") ); + if (!pStorage) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::createStorage: librdf_new_storage failed"), + m_rRep); + } + return pStorage; +} + +librdf_model *librdf_TypeConverter::createModel( + librdf_world *i_pWorld, librdf_storage * i_pStorage) const +{ + librdf_model *pRepository( librdf_new_model(i_pWorld, i_pStorage, NULL) ); + if (!pRepository) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::createModel: librdf_new_model failed"), + m_rRep); + } + //FIXME +#if 0 + { + librdf_uri * ctxt = librdf_new_uri(i_pWorld, reinterpret_cast<const unsigned char *>(LIBRDF_MODEL_FEATURE_CONTEXTS)); + librdf_node * contexts = librdf_model_get_feature(repository, ctxt); + if (!contexts) + throw; + std::cout << "value of contexts feature: "; + prtNode(contexts); + std::cout << std::endl; + // librdf_model_set_feature(repository, LIBRDF_FEATURE_CONTEXTS, ...); + safe_librdf_free_node(contexts); + safe_librdf_free_uri(ctxt); + } +#endif + return pRepository; +} + +// this does NOT create a node, only URI +librdf_uri* librdf_TypeConverter::mkURI( librdf_world* i_pWorld, + const uno::Reference< rdf::XURI > & i_xURI) const +{ + const ::rtl::OString uri( + ::rtl::OUStringToOString(i_xURI->getStringValue(), + RTL_TEXTENCODING_UTF8) ); + librdf_uri *pURI( librdf_new_uri(i_pWorld, + reinterpret_cast<const unsigned char *>(uri.getStr()))); + if (!pURI) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::mkURI: librdf_new_uri failed"), 0); + } + return pURI; +} + +// create blank or URI node +librdf_node* librdf_TypeConverter::mkResource( librdf_world* i_pWorld, + const uno::Reference< rdf::XResource > & i_xResource) const +{ + if (!i_xResource.is()) return 0; + uno::Reference< rdf::XBlankNode > xBlankNode(i_xResource, uno::UNO_QUERY); + if (xBlankNode.is()) { + const ::rtl::OString label( + ::rtl::OUStringToOString(xBlankNode->getStringValue(), + RTL_TEXTENCODING_UTF8) ); + librdf_node *pNode( + librdf_new_node_from_blank_identifier(i_pWorld, + reinterpret_cast<const unsigned char*> (label.getStr()))); + if (!pNode) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::mkResource: " + "librdf_new_node_from_blank_identifier failed"), 0); + } + return pNode; + } else { // assumption: everything else is URI + const ::rtl::OString uri( + ::rtl::OUStringToOString(i_xResource->getStringValue(), + RTL_TEXTENCODING_UTF8) ); + librdf_node *pNode( + librdf_new_node_from_uri_string(i_pWorld, + reinterpret_cast<const unsigned char*> (uri.getStr()))); + if (!pNode) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::mkResource: " + "librdf_new_node_from_uri_string failed"), 0); + } + return pNode; + } +} + +// create blank or URI or literal node +librdf_node* librdf_TypeConverter::mkNode( librdf_world* i_pWorld, + const uno::Reference< rdf::XNode > & i_xNode) const +{ + if (!i_xNode.is()) return 0; + uno::Reference< rdf::XResource > xResource(i_xNode, uno::UNO_QUERY); + if (xResource.is()) { + return mkResource(i_pWorld, xResource); + } + uno::Reference< rdf::XLiteral> xLiteral(i_xNode, uno::UNO_QUERY); + OSL_ENSURE(xLiteral.is(), + "mkNode: someone invented a new rdf.XNode and did not tell me"); + if (!xLiteral.is()) return 0; + const ::rtl::OString val( + ::rtl::OUStringToOString(xLiteral->getValue(), + RTL_TEXTENCODING_UTF8) ); + const ::rtl::OString lang( + ::rtl::OUStringToOString(xLiteral->getLanguage(), + RTL_TEXTENCODING_UTF8) ); + const uno::Reference< rdf::XURI > xType(xLiteral->getDatatype()); + librdf_node * ret(0); + if (lang.getLength() == 0) { + if (!xType.is()) { + ret = librdf_new_node_from_literal(i_pWorld, + reinterpret_cast<const unsigned char*> (val.getStr()), + NULL, 0); + } else { + const boost::shared_ptr<librdf_uri> pDatatype( + mkURI(i_pWorld, xType), safe_librdf_free_uri); + ret = librdf_new_node_from_typed_literal(i_pWorld, + reinterpret_cast<const unsigned char*> (val.getStr()), + NULL, pDatatype.get()); + } + } else { + if (!xType.is()) { + ret = librdf_new_node_from_literal(i_pWorld, + reinterpret_cast<const unsigned char*> (val.getStr()), + (lang.getStr()), 0); + + } else { + OSL_ENSURE(false, "mkNode: invalid literal"); + return 0; + } + } + if (!ret) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::mkNode: " + "librdf_new_node_from_literal failed"), 0); + } + return ret; +} + +librdf_statement* librdf_TypeConverter::mkStatement( librdf_world* i_pWorld, + const uno::Reference< rdf::XResource > & i_xSubject, + const uno::Reference< rdf::XURI > & i_xPredicate, + const uno::Reference< rdf::XNode > & i_xObject) const +{ + librdf_node* pSubject( mkResource(i_pWorld, i_xSubject) ); + librdf_node* pPredicate(0); + librdf_node* pObject(0); + try { + const uno::Reference<rdf::XResource> xPredicate(i_xPredicate, + uno::UNO_QUERY); + pPredicate = mkResource(i_pWorld, xPredicate); + try { + pObject = mkNode(i_pWorld, i_xObject); + } catch (...) { + safe_librdf_free_node(pPredicate); + throw; + } + } catch (...) { + safe_librdf_free_node(pSubject); + throw; + } + // NB: this takes ownership of the nodes! (which is really ugly) + librdf_statement* pStatement( librdf_new_statement_from_nodes(i_pWorld, + pSubject, pPredicate, pObject) ); + if (!pStatement) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::mkStatement: " + "librdf_new_statement_from_nodes failed"), 0); + } + return pStatement; +} + +uno::Reference<rdf::XURI> +librdf_TypeConverter::convertToXURI(librdf_uri* i_pURI) const +{ + if (!i_pURI) return 0; + const unsigned char* uri( librdf_uri_as_string(i_pURI) ); + if (!uri) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXURI: " + "librdf_uri_as_string failed"), m_rRep); + } + ::rtl::OUString uriU( ::rtl::OStringToOUString( + ::rtl::OString(reinterpret_cast<const sal_Char*>(uri)), + RTL_TEXTENCODING_UTF8) ); + try { + return rdf::URI::create(m_xContext, uriU); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXURI: " + "illegal uri"), m_rRep, uno::makeAny(iae)); + } +} + +uno::Reference<rdf::XURI> +librdf_TypeConverter::convertToXURI(librdf_node* i_pNode) const +{ + if (!i_pNode) return 0; + if (librdf_node_is_resource(i_pNode)) { + librdf_uri* pURI( librdf_node_get_uri(i_pNode) ); + if (!pURI) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXURI: " + "resource has no uri"), m_rRep); + } + return convertToXURI(pURI); + } else { + OSL_ENSURE(false, "convertToXURI: unknown librdf_node"); + return 0; + } +} + +uno::Reference<rdf::XResource> +librdf_TypeConverter::convertToXResource(librdf_node* i_pNode) const +{ + if (!i_pNode) return 0; + if (librdf_node_is_blank(i_pNode)) { + const unsigned char* label( librdf_node_get_blank_identifier(i_pNode) ); + if (!label) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXResource: " + "blank node has no label"), m_rRep); + } + ::rtl::OUString labelU( ::rtl::OStringToOUString( + ::rtl::OString(reinterpret_cast<const sal_Char*>(label)), + RTL_TEXTENCODING_UTF8) ); + try { + return uno::Reference<rdf::XResource>( + rdf::BlankNode::create(m_xContext, labelU), uno::UNO_QUERY); + } catch (lang::IllegalArgumentException & iae) { + throw lang::WrappedTargetRuntimeException( + ::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXResource: " + "illegal blank node label"), m_rRep, uno::makeAny(iae)); + } + } else { + return uno::Reference<rdf::XResource>(convertToXURI(i_pNode), + uno::UNO_QUERY); + } +} + +uno::Reference<rdf::XNode> +librdf_TypeConverter::convertToXNode(librdf_node* i_pNode) const +{ + if (!i_pNode) return 0; + if (!librdf_node_is_literal(i_pNode)) { + return uno::Reference<rdf::XNode>(convertToXResource(i_pNode), + uno::UNO_QUERY); + } + const unsigned char* value( librdf_node_get_literal_value(i_pNode) ); + if (!value) { + throw uno::RuntimeException(::rtl::OUString::createFromAscii( + "librdf_TypeConverter::convertToXNode: " + "literal has no value"), m_rRep); + } + const char * lang( librdf_node_get_literal_value_language(i_pNode) ); + librdf_uri* pType( + librdf_node_get_literal_value_datatype_uri(i_pNode) ); + OSL_ENSURE(!lang || !pType, "convertToXNode: invalid literal"); + const ::rtl::OUString valueU( ::rtl::OStringToOUString( + ::rtl::OString(reinterpret_cast<const sal_Char*>(value)), + RTL_TEXTENCODING_UTF8) ); + if (lang) { + const ::rtl::OUString langU( ::rtl::OStringToOUString( + ::rtl::OString(reinterpret_cast<const sal_Char*>(lang)), + RTL_TEXTENCODING_UTF8) ); + return uno::Reference<rdf::XNode>( + rdf::Literal::createWithLanguage(m_xContext, valueU, langU), + uno::UNO_QUERY); + } else if (pType) { + uno::Reference<rdf::XURI> xType(convertToXURI(pType)); + OSL_ENSURE(xType.is(), "convertToXNode: null uri"); + return uno::Reference<rdf::XNode>( + rdf::Literal::createWithType(m_xContext, valueU, xType), + uno::UNO_QUERY); + } else { + return uno::Reference<rdf::XNode>( + rdf::Literal::create(m_xContext, valueU), + uno::UNO_QUERY); + } +} + +rdf::Statement +librdf_TypeConverter::convertToStatement(librdf_statement* i_pStmt, + librdf_node* i_pContext) const +{ + if (!i_pStmt) { + throw uno::RuntimeException(); + } + return rdf::Statement( + convertToXResource(librdf_statement_get_subject(i_pStmt)), + convertToXURI(librdf_statement_get_predicate(i_pStmt)), + convertToXNode(librdf_statement_get_object(i_pStmt)), + convertToXURI(i_pContext)); +} + +} // closing anonymous implementation namespace + + + +// component helper namespace +namespace comp_librdf_Repository { + +::rtl::OUString SAL_CALL _getImplementationName() { + return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( + "librdf_Repository")); +} + +uno::Sequence< ::rtl::OUString > SAL_CALL _getSupportedServiceNames() +{ + uno::Sequence< ::rtl::OUString > s(1); + s[0] = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( + "com.sun.star.rdf.Repository")); + return s; +} + +uno::Reference< uno::XInterface > SAL_CALL _create( + const uno::Reference< uno::XComponentContext > & context) + SAL_THROW((uno::Exception)) +{ + return static_cast< ::cppu::OWeakObject * >(new librdf_Repository(context)); +} + +} // closing component helper namespace + |