/**
* librdf_stream_write:
* @stream: the stream object
* @iostr: the iostream to write to
*
* Write a stream of triples to an iostream in a debug format.
*
* This prints the remaining statements of the stream to the given
* #raptor_iostream in a debug format.
*
* Note that after this method is called the stream will be empty so
* that librdf_stream_end() will always be true and
* librdf_stream_next() will always return NULL. The only useful
* operation is to dispose of the stream with the
* librdf_free_stream() destructor.
*
* This method is for debugging and the format of the output should
* not be relied on. In particular, when contexts are used the
* result may be 4 nodes.
*
* Return value: non-0 on failure
**/
int
librdf_stream_write(librdf_stream *stream, raptor_iostream *iostr)
{
LIBRDF_ASSERT_OBJECT_POINTER_RETURN_VALUE(stream, librdf_stream, 1);
LIBRDF_ASSERT_OBJECT_POINTER_RETURN_VALUE(iostr, raptor_iostream, 1);
while(!librdf_stream_end(stream)) {
librdf_statement* statement;
librdf_node* context_node;
statement = librdf_stream_get_object(stream);
if(!statement)
break;
raptor_iostream_counted_string_write(" ", 2, iostr);
if(librdf_statement_write(statement, iostr))
return 1;
context_node = (librdf_node*)librdf_stream_get_context(stream);
if(context_node) {
raptor_iostream_counted_string_write(" with context ", 14, iostr);
librdf_node_write(context_node, iostr);
}
raptor_iostream_counted_string_write(". \n", 3, iostr);
librdf_stream_next(stream);
}
return 0;
}
/**
* librdf_stream_print:
* @stream: the stream object
* @fh: the FILE stream to print to
*
* Print the stream.
*
* This prints the remaining statements of the stream to the given
* file handle. Note that after this method is called the stream
* will be empty so that librdf_stream_end() will always be true
* and librdf_stream_next() will always return NULL. The only
* useful operation is to dispose of the stream with the
* librdf_free_stream() destructor.
*
* This method is for debugging and the format of the output should
* not be relied on.
*
* @Deprecated: Use librdf_stream_write() to write to
* #raptor_iostream which can be made to write to a string. Use a
* #librdf_serializer to write proper syntax formats.
*
**/
void
librdf_stream_print(librdf_stream *stream, FILE *fh)
{
raptor_iostream *iostr;
if(!stream)
return;
iostr = raptor_new_iostream_to_file_handle(stream->world->raptor_world_ptr, fh);
if(!iostr)
return;
while(!librdf_stream_end(stream)) {
librdf_statement* statement = librdf_stream_get_object(stream);
librdf_node* context_node = (librdf_node*)librdf_stream_get_context(stream);
if(!statement)
break;
fputs(" ", fh);
librdf_statement_write(statement, iostr);
if(context_node) {
fputs(" with context ", fh);
librdf_node_print(context_node, fh);
}
fputs("\n", fh);
librdf_stream_next(stream);
}
raptor_free_iostream(iostr);
}
static void*
librdf_storage_stream_to_node_iterator_get_method(void* iterator, int flags)
{
librdf_storage_stream_to_node_iterator_context* context=(librdf_storage_stream_to_node_iterator_context*)iterator;
librdf_node* node;
librdf_statement* statement=librdf_stream_get_object(context->stream);
if(!statement)
return NULL;
switch(flags) {
case LIBRDF_ITERATOR_GET_METHOD_GET_OBJECT:
switch(context->want) {
case LIBRDF_STATEMENT_SUBJECT: /* SOURCES (subjects) */
node=librdf_statement_get_subject(statement);
break;
case LIBRDF_STATEMENT_PREDICATE: /* ARCS (predicates) */
node=librdf_statement_get_predicate(statement);
break;
case LIBRDF_STATEMENT_OBJECT: /* TARGETS (objects) */
node=librdf_statement_get_object(statement);
break;
default: /* error */
LIBRDF_ERROR2(statement->world, "Unknown statement part %d\n", context->want);
node=NULL;
}
break;
case LIBRDF_ITERATOR_GET_METHOD_GET_CONTEXT:
node=(librdf_node*)librdf_stream_get_context(context->stream);
break;
default:
LIBRDF_ERROR2(statement->world, "Unknown iterator method flag %d\n", flags);
node=NULL;
}
return (void*)node;
}
int
main(int argc, char *argv[])
{
librdf_world* world;
librdf_parser* parser;
librdf_serializer* serializer;
librdf_storage *storage;
librdf_model* model;
librdf_node *source, *arc, *target, *node;
librdf_node *subject, *predicate, *object;
librdf_node* context_node=NULL;
librdf_stream* stream;
librdf_iterator* iterator;
librdf_uri *uri;
librdf_uri *base_uri=NULL;
librdf_query *query;
librdf_query_results *results;
librdf_hash *options;
int count;
int rc;
int transactions=0;
const char* storage_name;
const char* storage_options;
const char* context;
const char* identifier;
const char* results_format;
librdf_statement* statement=NULL;
char* query_cmd=NULL;
char* s;
/*
* Initialize
*/
storage_name="virtuoso";
results_format="xml";
context=DEFAULT_CONTEXT;
identifier=DEFAULT_IDENTIFIER;
/*
* Get connection options
*/
if(argc == 2 && argv[1][0] != '\0')
storage_options=argv[1];
else if((s=getenv ("VIRTUOSO_STORAGE_OPTIONS")) != NULL)
storage_options=s;
else
storage_options=DEFAULT_STORAGE_OPTIONS;
world=librdf_new_world();
librdf_world_set_logger(world, world, log_handler);
librdf_world_open(world);
options=librdf_new_hash(world, NULL);
librdf_hash_open(options, NULL, 0, 1, 1, NULL);
librdf_hash_put_strings(options, "contexts", "yes");
transactions=1;
librdf_hash_from_string(options, storage_options);
storage=librdf_new_storage_with_options(world, storage_name, identifier, options);
if(!storage) {
fprintf(stderr, ": Failed to open %s storage '%s'\n", storage_name, identifier);
return(1);
}
model=librdf_new_model(world, storage, NULL);
if(!model) {
fprintf(stderr, ": Failed to create model\n");
return(1);
}
if(transactions)
librdf_model_transaction_start(model);
/* Do this or gcc moans */
stream=NULL;
iterator=NULL;
parser=NULL;
serializer=NULL;
source=NULL;
arc=NULL;
target=NULL;
subject=NULL;
predicate=NULL;
object=NULL;
uri=NULL;
node=NULL;
query=NULL;
results=NULL;
context_node=librdf_new_node_from_uri_string(world, (const unsigned char *)context);
/**** Test 1 *******/
startTest(1, " Remove all triples in <%s> context\n", context);
{
rc=librdf_model_context_remove_statements(model, context_node);
if(rc)
endTest(0, " failed to remove context triples from the graph\n");
else
endTest(1, " removed context triples from the graph\n");
}
/**** Test 2 *******/
startTest(2, " Add triples to <%s> context\n", context);
{
rc=0;
rc |= add_triple(world, context_node, model, "aa", "bb", "cc");
rc |= add_triple(world, context_node, model, "aa", "bb1", "cc");
rc |= add_triple(world, context_node, model, "aa", "a2", "_:cc");
rc |= add_triple_typed(world, context_node, model, "aa", "a2", "cc");
rc |= add_triple_typed(world, context_node, model, "mm", "nn", "Some long literal with language@en");
rc |= add_triple_typed(world, context_node, model, "oo", "pp", "12345^^<http://www.w3.org/2001/XMLSchema#int>");
if(rc)
endTest(0, " failed add triple\n");
else
endTest(1, " add triple to context\n");
}
/**** Test 3 *******/
startTest(3, " Print all triples in <%s> context\n", context);
{
raptor_iostream* iostr = raptor_new_iostream_to_file_handle(librdf_world_get_raptor(world), stdout);
librdf_model_write(model, iostr);
raptor_free_iostream(iostr);
endTest(1, "\n");
}
/***** Test 4 *****/
startTest(4, " Count of triples in <%s> context\n", context);
{
count=librdf_model_size(model);
if(count >= 0)
endTest(1, " graph has %d triples\n", count);
else
endTest(0, " graph has unknown number of triples\n");
}
/***** Test 5 *****/
startTest(5, " Exec: ARC aa bb \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
node=librdf_model_get_target(model, subject, predicate);
librdf_free_node(subject);
librdf_free_node(predicate);
if(!node) {
endTest(0, " Failed to get arc\n");
} else {
print_node(stdout, node);
librdf_free_node(node);
endTest(1, "\n");
}
}
/***** Test 6 *****/
startTest(6, " Exec: ARCS aa cc \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
iterator=librdf_model_get_arcs(model, subject, object);
librdf_free_node(subject);
librdf_free_node(object);
if(!iterator) {
endTest(0, " Failed to get arcs\n");
} else {
print_nodes(stdout, iterator);
endTest(1, "\n");
}
}
/***** Test 7 *****/
startTest(7, " Exec: ARCS-IN cc \n");
{
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
iterator=librdf_model_get_arcs_in(model, object);
librdf_free_node(object);
if(!iterator) {
endTest(0, " Failed to get arcs in\n");
} else {
int ok=1;
count=0;
while(!librdf_iterator_end(iterator)) {
context_node=(librdf_node*)librdf_iterator_get_context(iterator);
node=(librdf_node*)librdf_iterator_get_object(iterator); /*returns SHARED pointer */
if(!node) {
ok=0;
endTest(ok, " librdf_iterator_get_next returned NULL\n");
break;
}
fputs("Matched arc: ", stdout);
librdf_node_print(node, stdout);
if(context_node) {
fputs(" with context ", stdout);
librdf_node_print(context_node, stdout);
}
fputc('\n', stdout);
count++;
librdf_iterator_next(iterator);
}
librdf_free_iterator(iterator);
endTest(ok, " matching arcs: %d\n", count);
}
}
/***** Test 8 *****/
startTest(8, " Exec: ARCS-OUT aa \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
iterator=librdf_model_get_arcs_out(model, subject);
librdf_free_node(subject);
if(!iterator)
endTest(0, " Failed to get arcs out\n");
else {
int ok=1;
count=0;
while(!librdf_iterator_end(iterator)) {
context_node=(librdf_node*)librdf_iterator_get_context(iterator);
node=(librdf_node*)librdf_iterator_get_object(iterator);
if(!node) {
ok=0;
endTest(ok, " librdf_iterator_get_next returned NULL\n");
break;
}
fputs("Matched arc: ", stdout);
librdf_node_print(node, stdout);
if(context_node) {
fputs(" with context ", stdout);
librdf_node_print(context_node, stdout);
}
fputc('\n', stdout);
count++;
librdf_iterator_next(iterator);
}
librdf_free_iterator(iterator);
endTest(ok, " matching arcs: %d\n", count);
}
}
/***** Test 9 *****/
startTest(9, " Exec: CONTAINS aa bb1 cc \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb1");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
statement=librdf_new_statement(world);
librdf_statement_set_subject(statement, subject);
librdf_statement_set_predicate(statement, predicate);
librdf_statement_set_object(statement, object);
if(librdf_model_contains_statement(model, statement))
endTest(1, " the graph contains the triple\n");
else
endTest(0, " the graph does not contain the triple\n");
librdf_free_statement(statement);
}
/***** Test 10 *****/
startTest(10, " Exec: FIND aa - - \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
statement=librdf_new_statement(world);
librdf_statement_set_subject(statement, subject);
stream=librdf_model_find_statements_in_context(model, statement, context_node);
if(!stream) {
endTest(0, " FIND returned no results (NULL stream)\n");
} else {
librdf_node* ctxt_node=NULL;
int ok=1;
count=0;
while(!librdf_stream_end(stream)) {
librdf_statement *stmt=librdf_stream_get_object(stream);
ctxt_node=(librdf_node*)librdf_stream_get_context(stream);
if(!stmt) {
ok=0;
endTest(ok, " librdf_stream_next returned NULL\n");
break;
}
fputs("Matched triple: ", stdout);
librdf_statement_print(stmt, stdout);
if(context) {
fputs(" with context ", stdout);
librdf_node_print(ctxt_node, stdout);
}
fputc('\n', stdout);
count++;
librdf_stream_next(stream);
}
librdf_free_stream(stream);
endTest(ok, " matching triples: %d\n", count);
}
librdf_free_statement(statement);
}
/***** Test 11 *****/
startTest(11, " Exec: HAS-ARC-IN cc bb \n");
{
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
if(librdf_model_has_arc_in(model, object, predicate))
endTest(1, " the graph contains the arc\n");
else
endTest(0, " the graph does not contain the arc\n");
librdf_free_node(predicate);
librdf_free_node(object);
}
/***** Test 12 *****/
startTest(12, " Exec: HAS-ARC-OUT aa bb \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
if(librdf_model_has_arc_out(model, subject, predicate))
endTest(1, " the graph contains the arc\n");
else
endTest(0, " the graph does not contain the arc\n");
librdf_free_node(predicate);
librdf_free_node(subject);
}
/***** Test 13 *****/
startTest(13, " Exec: SOURCE aa cc \n");
{
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
node=librdf_model_get_source(model, predicate, object);
librdf_free_node(predicate);
librdf_free_node(object);
if(!node) {
endTest(0, " Failed to get source\n");
} else {
print_node(stdout, node);
librdf_free_node(node);
endTest(1, "\n");
}
}
/***** Test 14 *****/
startTest(14, " Exec: SOURCES bb cc \n");
{
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
iterator=librdf_model_get_sources(model, predicate, object);
librdf_free_node(predicate);
librdf_free_node(object);
if(!iterator) {
endTest(0, " Failed to get sources\n");
} else {
print_nodes(stdout, iterator);
endTest(1, "\n");
}
}
/***** Test 15 *****/
startTest(15, " Exec: TARGET aa bb \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
node=librdf_model_get_target(model, subject, predicate);
librdf_free_node(subject);
librdf_free_node(predicate);
if(!node) {
endTest(0, " Failed to get target\n");
} else {
print_node(stdout, node);
librdf_free_node(node);
endTest(1, "\n");
}
}
/***** Test 16 *****/
startTest(16, " Exec: TARGETS aa bb \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb");
iterator=librdf_model_get_targets(model, subject, predicate);
librdf_free_node(subject);
librdf_free_node(predicate);
if(!iterator) {
endTest(0, " Failed to get targets\n");
} else {
print_nodes(stdout, iterator);
endTest(1, "\n");
}
}
/***** Test 17 *****/
startTest(17, " Exec: REMOVE aa bb1 cc \n");
{
subject=librdf_new_node_from_uri_string(world, (const unsigned char*)"aa");
predicate=librdf_new_node_from_uri_string(world, (const unsigned char*)"bb1");
object=librdf_new_node_from_uri_string(world, (const unsigned char*)"cc");
statement=librdf_new_statement(world);
librdf_statement_set_subject(statement, subject);
librdf_statement_set_predicate(statement, predicate);
librdf_statement_set_object(statement, object);
if(librdf_model_context_remove_statement(model, context_node, statement))
endTest(0, " failed to remove triple from the graph\n");
else
endTest(1, " removed triple from the graph\n");
librdf_free_statement(statement);
}
/***** Test 18 *****/
query_cmd=(char *)"CONSTRUCT {?s ?p ?o} FROM <http://red> WHERE {?s ?p ?o}";
startTest(18, " Exec: QUERY \"%s\" \n", query_cmd);
{
query=librdf_new_query(world, (char *)"vsparql", NULL, (const unsigned char *)query_cmd, NULL);
if(!(results=librdf_model_query_execute(model, query))) {
endTest(0, " Query of model with '%s' failed\n", query_cmd);
librdf_free_query(query);
query=NULL;
} else {
stream=librdf_query_results_as_stream(results);
if(!stream) {
endTest(0, " QUERY returned no results (NULL stream)\n");
} else {
librdf_node* ctxt=NULL;
count=0;
while(!librdf_stream_end(stream)) {
librdf_statement *stmt=librdf_stream_get_object(stream); /*returns SHARED pointer */
ctxt=(librdf_node*)librdf_stream_get_context(stream);
if(!stmt) {
endTest(0, " librdf_stream_next returned NULL\n");
break;
}
fputs("Matched triple: ", stdout);
librdf_statement_print(stmt, stdout);
if(ctxt) {
fputs(" with context ", stdout);
librdf_node_print(ctxt, stdout);
}
fputc('\n', stdout);
count++;
librdf_stream_next(stream);
}
librdf_free_stream(stream);
endTest(1, " matching triples: %d\n", count);
librdf_free_query_results(results);
}
}
librdf_free_query(query);
}
/***** Test 19 *****/
query_cmd=(char *)"SELECT * WHERE {graph <http://red> { ?s ?p ?o }}";
startTest(19, " Exec1: QUERY_AS_BINDINGS \"%s\" \n", query_cmd);
{
query=librdf_new_query(world, (char *)"vsparql", NULL, (const unsigned char *)query_cmd, NULL);
if(!(results=librdf_model_query_execute(model, query))) {
endTest(0, " Query of model with '%s' failed\n", query_cmd);
librdf_free_query(query);
query=NULL;
} else {
raptor_iostream *iostr;
librdf_query_results_formatter *formatter;
fprintf(stderr, "**: Formatting query result as '%s':\n", results_format);
iostr = raptor_new_iostream_to_file_handle(librdf_world_get_raptor(world), stdout);
formatter = librdf_new_query_results_formatter2(results, results_format,
NULL /* mime type */,
NULL /* format_uri */);
base_uri = librdf_new_uri(world, (const unsigned char*)"http://example.org/");
librdf_query_results_formatter_write(iostr, formatter, results, base_uri);
librdf_free_query_results_formatter(formatter);
raptor_free_iostream(iostr);
librdf_free_uri(base_uri);
endTest(1, "\n");
librdf_free_query_results(results);
}
librdf_free_query(query);
}
/***** Test 20 *****/
query_cmd=(char *)"SELECT * WHERE {graph <http://red> { ?s ?p ?o }}";
startTest(20, " Exec2: QUERY_AS_BINDINGS \"%s\" \n", query_cmd);
{
query=librdf_new_query(world, (char *)"vsparql", NULL, (const unsigned char *)query_cmd, NULL);
if(!(results=librdf_model_query_execute(model, query))) {
endTest(0, " Query of model with '%s' failed\n", query_cmd);
librdf_free_query(query);
query=NULL;
} else {
if(print_query_results(world, model, results))
endTest(0, "\n");
else
endTest(1, "\n");
librdf_free_query_results(results);
}
librdf_free_query(query);
}
getTotal();
if(transactions)
librdf_model_transaction_commit(model);
librdf_free_node(context_node);
librdf_free_node(context_node);
librdf_free_hash(options);
librdf_free_model(model);
librdf_free_storage(storage);
librdf_free_world(world);
#ifdef LIBRDF_MEMORY_DEBUG
librdf_memory_report(stderr);
#endif
/* keep gcc -Wall happy */
return(0);
}