diff options
Diffstat (limited to 'src/libs/client/RDFWriter.cpp')
-rw-r--r-- | src/libs/client/RDFWriter.cpp | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/src/libs/client/RDFWriter.cpp b/src/libs/client/RDFWriter.cpp deleted file mode 100644 index 649c8a1a..00000000 --- a/src/libs/client/RDFWriter.cpp +++ /dev/null @@ -1,211 +0,0 @@ -/* This file is part of Ingen. Copyright (C) 2006 Dave Robillard. - * - * Ingen is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any later - * version. - * - * Ingen 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 General Public License for details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "RDFWriter.h" -#include "raul/AtomRaptor.h" - -#define U(x) ((const unsigned char*)(x)) - -//static const char* const RDF_LANG = "rdfxml-abbrev"; -static const char* const RDF_LANG = "turtle"; - - -RDFWriter::RDFWriter() - : _serializer(NULL) - , _string_output(NULL) -{ - //_prefixes["xsd"] = "http://www.w3.org/2001/XMLSchema#"; - _prefixes["rdf"] = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"; - _prefixes["ingen"] = "http://codeson.net/ns/ingen#"; - _prefixes["ingenuity"] = "http://codeson.net/ns/ingenuity#"; -} - - -void -RDFWriter::setup_prefixes() -{ - for (map<string,string>::const_iterator i = _prefixes.begin(); i != _prefixes.end(); ++i) { - raptor_serialize_set_namespace(_serializer, - raptor_new_uri(U(i->second.c_str())), U(i->first.c_str())); - } -} - - -/** Expands the prefix of URI, if the prefix is registered. - * - * If uri is not a valid URI, the empty string is returned (so invalid URIs won't be serialized). - */ -string -RDFWriter::expand_uri(const string& uri) -{ - // FIXME: slow, stupid - for (map<string,string>::const_iterator i = _prefixes.begin(); i != _prefixes.end(); ++i) - if (uri.substr(0, i->first.length()+1) == i->first + ":") - return i->second + uri.substr(i->first.length()+1); - - // FIXME: find a correct way to validate a URI - if (uri.find(":") == string::npos && uri.find("/") == string::npos) - return ""; - else - return uri; -} - - - -/** Begin a serialization to a file. - * - * This must be called before any write methods. - */ -void -RDFWriter::start_to_filename(const string& filename) throw (std::logic_error) -{ - if (_serializer) - throw std::logic_error("start_to_string called with serialization in progress"); - - raptor_init(); - _serializer = raptor_new_serializer(RDF_LANG); - setup_prefixes(); - raptor_serialize_start_to_filename(_serializer, filename.c_str()); -} - - -/** Begin a serialization to a string. - * - * This must be called before any write methods. - * - * The results of the serialization will be returned by the finish() method after - * the desired objects have been serialized. - */ -void -RDFWriter::start_to_string() throw (std::logic_error) -{ - if (_serializer) - throw std::logic_error("start_to_string called with serialization in progress"); - - raptor_init(); - _serializer = raptor_new_serializer(RDF_LANG); - setup_prefixes(); - raptor_serialize_start_to_string(_serializer, - NULL /*base_uri*/, - (void**)&_string_output, - NULL /*size*/); -} - - -/** Finish a serialization. - * - * If this was a serialization to a string, the serialization output - * will be returned, otherwise the empty string is returned. - */ -string -RDFWriter::finish() throw(std::logic_error) -{ - string ret = ""; - - if (!_serializer) - throw std::logic_error("finish() called with no serialization in progress"); - - raptor_serialize_end(_serializer); - - if (_string_output) { - ret = string((char*)_string_output); - free(_string_output); - _string_output = NULL; - } - - raptor_free_serializer(_serializer); - _serializer = NULL; - - return ret; -} - - -void -RDFWriter::write(const RdfId& subject, - const RdfId& predicate, - const RdfId& object) -{ - assert(_serializer); - - raptor_statement triple; - - // FIXME: leaks? - - if (subject.type() == RdfId::RESOURCE) { - triple.subject = (void*)raptor_new_uri((const unsigned char*)subject.to_string().c_str()); - triple.subject_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE; - } else { - assert(subject.type() == RdfId::ANONYMOUS); - triple.subject = (unsigned char*)(strdup(subject.to_string().c_str())); - triple.subject_type = RAPTOR_IDENTIFIER_TYPE_ANONYMOUS; - } - - assert(predicate.type() == RdfId::RESOURCE); - triple.predicate = (void*)raptor_new_uri((const unsigned char*)predicate.to_string().c_str()); - triple.predicate_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE; - - if (object.type() == RdfId::RESOURCE) { - triple.object = (void*)raptor_new_uri((const unsigned char*)object.to_string().c_str()); - triple.object_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE; - } else { - assert(object.type() == RdfId::ANONYMOUS); - triple.object = (unsigned char*)(strdup(object.to_string().c_str())); - triple.object_type = RAPTOR_IDENTIFIER_TYPE_ANONYMOUS; - } - - raptor_serialize_statement(_serializer, &triple); - - if (subject.type() == RdfId::RESOURCE) - raptor_free_uri((raptor_uri*)triple.subject); - - raptor_free_uri((raptor_uri*)triple.predicate); - - if (object.type() == RdfId::RESOURCE) - raptor_free_uri((raptor_uri*)triple.object); -} - - -void -RDFWriter::write(const RdfId& subject, - const RdfId& predicate, - const Atom& object) -{ - assert(_serializer); - - raptor_statement triple; - - if (subject.type() == RdfId::RESOURCE) { - triple.subject = (void*)raptor_new_uri((const unsigned char*)subject.to_string().c_str()); - triple.subject_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE; - } else { - assert(subject.type() == RdfId::ANONYMOUS); - triple.subject = (unsigned char*)(strdup(subject.to_string().c_str())); - triple.subject_type = RAPTOR_IDENTIFIER_TYPE_ANONYMOUS; - } - - assert(predicate.type() == RdfId::RESOURCE); - triple.predicate = (void*)raptor_new_uri((const unsigned char*)predicate.to_string().c_str()); - triple.predicate_type = RAPTOR_IDENTIFIER_TYPE_RESOURCE; - - AtomRaptor::atom_to_triple_object(&triple, object); - - raptor_serialize_statement(_serializer, &triple); - - if (subject.type() == RdfId::RESOURCE) - raptor_free_uri((raptor_uri*)triple.subject); - - raptor_free_uri((raptor_uri*)triple.predicate); -} |