diff options
Diffstat (limited to 'src/inserter.c')
| -rw-r--r-- | src/inserter.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/inserter.c b/src/inserter.c new file mode 100644 index 00000000..720ce0dd --- /dev/null +++ b/src/inserter.c @@ -0,0 +1,115 @@ +/* + Copyright 2011-2018 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#include "model.h" +#include "sink.h" +#include "statement.h" +#include "world.h" + +#include "serd/serd.h" + +#include <stdlib.h> + +struct SerdInserterImpl { + SerdModel* model; + SerdNode* default_graph; + SerdSink iface; +}; + +static SerdStatus +serd_inserter_on_base(SerdInserter* inserter, const SerdNode* uri) +{ + return serd_env_set_base_uri(inserter->iface.env, uri); +} + +static SerdStatus +serd_inserter_on_prefix(SerdInserter* inserter, + const SerdNode* name, + const SerdNode* uri) +{ + return serd_env_set_prefix(inserter->iface.env, name, uri); +} + +static const SerdNode* +manage_or_intern(SerdNodes* nodes, SerdNode* manage, const SerdNode* intern) +{ + return manage ? serd_nodes_manage(nodes, manage) + : serd_nodes_intern(nodes, intern); +} + +static SerdStatus +serd_inserter_on_statement(SerdInserter* inserter, + const SerdStatementFlags flags, + const SerdStatement* statement) +{ + (void)flags; + + const SerdNode* const subject = serd_statement_get_subject(statement); + const SerdNode* const predicate = serd_statement_get_predicate(statement); + const SerdNode* const object = serd_statement_get_object(statement); + const SerdNode* const graph = serd_statement_get_graph(statement); + + // Attempt to expand all nodes to eliminate CURIEs + SerdNode* const s = serd_env_expand(inserter->iface.env, subject); + SerdNode* const p = serd_env_expand(inserter->iface.env, predicate); + SerdNode* const o = serd_env_expand(inserter->iface.env, object); + SerdNode* const g = serd_env_expand(inserter->iface.env, graph); + + SerdNodes* const nodes = inserter->model->world->nodes; + const SerdNode* model_graph = manage_or_intern(nodes, g, graph); + if (!model_graph) { + model_graph = serd_nodes_intern(nodes, inserter->default_graph); + } + + const SerdStatus st = + serd_model_add_internal(inserter->model, + statement->cursor, + manage_or_intern(nodes, s, subject), + manage_or_intern(nodes, p, predicate), + manage_or_intern(nodes, o, object), + model_graph); + + return st > SERD_FAILURE ? st : SERD_SUCCESS; +} + +SerdInserter* +serd_inserter_new(SerdModel* model, SerdEnv* env, const SerdNode* default_graph) +{ + SerdInserter* inserter = (SerdInserter*)calloc(1, sizeof(SerdInserter)); + inserter->model = model; + inserter->default_graph = serd_node_copy(default_graph); + inserter->iface.handle = inserter; + inserter->iface.env = env; + inserter->iface.base = (SerdBaseSink)serd_inserter_on_base; + inserter->iface.prefix = (SerdPrefixSink)serd_inserter_on_prefix; + inserter->iface.statement = (SerdStatementSink)serd_inserter_on_statement; + return inserter; +} + +void +serd_inserter_free(SerdInserter* inserter) +{ + if (inserter) { + serd_node_free(inserter->default_graph); + free(inserter); + } +} + +SerdSink* +serd_inserter_get_sink(SerdInserter* inserter) +{ + return &inserter->iface; +} |