/*
* rasqal_query_results_write_sv:
* @iostr: #raptor_iostream to write the query to
* @results: #rasqal_query_results query results format
* @base_uri: #raptor_uri base URI of the output format
* @label: name of this format for errors
* @sep: column sep character
*
* INTERNAL - Write a @sep-separated values version of the query results format to an iostream.
*
* If the writing succeeds, the query results will be exhausted.
*
* Return value: non-0 on failure
**/
static int
rasqal_query_results_write_sv(raptor_iostream *iostr,
rasqal_query_results* results,
raptor_uri *base_uri,
const char* label,
char sep)
{
rasqal_query* query = rasqal_query_results_get_query(results);
int i;
int count = 1;
#define empty_value_str_len 0
static const char empty_value_str[empty_value_str_len+1] = "";
#define nl_str_len 1
static const char nl_str[nl_str_len+1] = "\n";
int vars_count;
if(!rasqal_query_results_is_bindings(results)) {
rasqal_log_error_simple(query->world, RAPTOR_LOG_LEVEL_ERROR,
&query->locator,
"Can only write %s format for variable binding results",
label);
return 1;
}
/* Header */
raptor_iostream_counted_string_write("Result", 6, iostr);
for(i = 0; 1; i++) {
const unsigned char *name;
name = rasqal_query_results_get_binding_name(results, i);
if(!name)
break;
raptor_iostream_write_byte(sep, iostr);
raptor_iostream_string_write(name, iostr);
}
raptor_iostream_counted_string_write(nl_str, nl_str_len, iostr);
/* Variable Binding Results */
vars_count = rasqal_query_results_get_bindings_count(results);
while(!rasqal_query_results_finished(results)) {
/* Result row */
raptor_iostream_decimal_write(count++, iostr);
for(i = 0; i < vars_count; i++) {
rasqal_literal *l = rasqal_query_results_get_binding_value(results, i);
raptor_iostream_write_byte(sep, iostr);
if(!l) {
if(empty_value_str_len)
raptor_iostream_counted_string_write(empty_value_str,
empty_value_str_len, iostr);
} else switch(l->type) {
const unsigned char* str;
size_t len;
case RASQAL_LITERAL_URI:
raptor_iostream_string_write("uri(", iostr);
str = (const unsigned char*)raptor_uri_as_counted_string(l->value.uri, &len);
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte(')', iostr);
break;
case RASQAL_LITERAL_BLANK:
raptor_iostream_string_write("blank(", iostr);
raptor_string_ntriples_write(l->string, l->string_len, '"', iostr);
raptor_iostream_write_byte(')', iostr);
break;
case RASQAL_LITERAL_STRING:
if(l->datatype && l->valid) {
rasqal_literal_type ltype;
ltype = rasqal_xsd_datatype_uri_to_type(l->world, l->datatype);
if(ltype >= RASQAL_LITERAL_INTEGER &&
ltype <= RASQAL_LITERAL_DECIMAL) {
/* write integer, float, double and decimal XSD typed
* data without quotes, datatype or language
*/
raptor_string_ntriples_write(l->string, l->string_len, '\0', iostr);
break;
}
}
raptor_iostream_write_byte('"', iostr);
raptor_string_ntriples_write(l->string, l->string_len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
if(l->language) {
raptor_iostream_write_byte('@', iostr);
raptor_iostream_string_write((const unsigned char*)l->language,
iostr);
}
if(l->datatype) {
raptor_iostream_string_write("^^uri(", iostr);
str = (const unsigned char*)raptor_uri_as_counted_string(l->datatype, &len);
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte(')', iostr);
}
break;
case RASQAL_LITERAL_PATTERN:
case RASQAL_LITERAL_QNAME:
case RASQAL_LITERAL_INTEGER:
case RASQAL_LITERAL_XSD_STRING:
case RASQAL_LITERAL_BOOLEAN:
case RASQAL_LITERAL_DOUBLE:
case RASQAL_LITERAL_FLOAT:
case RASQAL_LITERAL_VARIABLE:
case RASQAL_LITERAL_DECIMAL:
case RASQAL_LITERAL_DATETIME:
case RASQAL_LITERAL_UDT:
case RASQAL_LITERAL_INTEGER_SUBTYPE:
case RASQAL_LITERAL_UNKNOWN:
default:
rasqal_log_error_simple(query->world, RAPTOR_LOG_LEVEL_ERROR,
&query->locator,
"Cannot turn literal type %d into %s",
l->type, label);
}
/* End Binding */
}
/* End Result Row */
raptor_iostream_counted_string_write(nl_str, nl_str_len, iostr);
rasqal_query_results_next(results);
}
/* end sparql */
return 0;
}
/*
* rasqal_query_results_write_json1:
* @iostr: #raptor_iostream to write the query to
* @results: #rasqal_query_results query results format
* @base_uri: #raptor_uri base URI of the output format
*
* Write a JSON version of the query results format to an
* iostream in a format - INTERNAL.
*
* If the writing succeeds, the query results will be exhausted.
*
* Return value: non-0 on failure
**/
static int
rasqal_query_results_write_json1(rasqal_query_results_formatter* formatter,
raptor_iostream *iostr,
rasqal_query_results* results,
raptor_uri *base_uri)
{
rasqal_world* world = rasqal_query_results_get_world(results);
rasqal_query* query = rasqal_query_results_get_query(results);
int i;
int row_comma;
int column_comma = 0;
rasqal_query_results_type type;
type = rasqal_query_results_get_type(results);
if(type != RASQAL_QUERY_RESULTS_BINDINGS &&
type != RASQAL_QUERY_RESULTS_BOOLEAN) {
rasqal_log_error_simple(query->world, RAPTOR_LOG_LEVEL_ERROR,
&query->locator,
"Cannot write JSON for %s query result format",
rasqal_query_results_type_label(type));
return 1;
}
raptor_iostream_counted_string_write("{\n", 2, iostr);
/* Header */
raptor_iostream_counted_string_write(" \"head\": {\n", 12, iostr);
if(rasqal_query_results_is_bindings(results)) {
raptor_iostream_counted_string_write(" \"vars\": [ ", 14, iostr);
for(i = 0; 1; i++) {
const unsigned char *name;
name = rasqal_query_results_get_binding_name(results, i);
if(!name)
break;
/* 'x', */
if(i > 0)
raptor_iostream_counted_string_write(", ", 2, iostr);
raptor_iostream_write_byte('\"', iostr);
raptor_iostream_string_write(name, iostr);
raptor_iostream_write_byte('\"', iostr);
}
raptor_iostream_counted_string_write(" ]\n", 3, iostr);
}
/* FIXME - could add link inside 'head': */
/* End Header */
raptor_iostream_counted_string_write(" },\n", 5, iostr);
/* Boolean Results */
if(rasqal_query_results_is_boolean(results)) {
raptor_iostream_counted_string_write(" ", 2, iostr);
rasqal_iostream_write_json_boolean(iostr, "boolean",
rasqal_query_results_get_boolean(results));
goto results3done;
}
/* Variable Binding Results */
raptor_iostream_counted_string_write(" \"results\": {\n", 15, iostr);
if(query) {
raptor_iostream_counted_string_write(" ", 4, iostr);
rasqal_iostream_write_json_boolean(iostr, "ordered",
(rasqal_query_get_order_condition(query, 0) != NULL));
raptor_iostream_counted_string_write(",\n", 2, iostr);
raptor_iostream_counted_string_write(" ", 4, iostr);
rasqal_iostream_write_json_boolean(iostr, "distinct",
rasqal_query_get_distinct(query));
raptor_iostream_counted_string_write(",\n", 2, iostr);
}
raptor_iostream_counted_string_write(" \"bindings\" : [\n", 19, iostr);
row_comma = 0;
while(!rasqal_query_results_finished(results)) {
if(row_comma)
raptor_iostream_counted_string_write(",\n", 2, iostr);
/* Result row */
raptor_iostream_counted_string_write(" {\n", 8, iostr);
column_comma = 0;
for(i = 0; i<rasqal_query_results_get_bindings_count(results); i++) {
const unsigned char *name = rasqal_query_results_get_binding_name(results, i);
rasqal_literal *l = rasqal_query_results_get_binding_value(results, i);
if(column_comma)
raptor_iostream_counted_string_write(",\n", 2, iostr);
/* <binding> */
raptor_iostream_counted_string_write(" \"", 9, iostr);
raptor_iostream_string_write(name, iostr);
raptor_iostream_counted_string_write("\" : { ", 6, iostr);
if(!l) {
raptor_iostream_string_write("\"type\": \"unbound\", \"value\": null", iostr);
} else {
const unsigned char* str;
size_t len;
switch(l->type) {
case RASQAL_LITERAL_URI:
raptor_iostream_string_write("\"type\": \"uri\", \"value\": \"", iostr);
str = RASQAL_GOOD_CAST(const unsigned char*, raptor_uri_as_counted_string(l->value.uri, &len));
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
break;
case RASQAL_LITERAL_BLANK:
raptor_iostream_string_write("\"type\": \"bnode\", \"value\": \"", iostr);
raptor_string_ntriples_write(l->string, l->string_len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
break;
case RASQAL_LITERAL_STRING:
raptor_iostream_string_write("\"type\": \"literal\", \"value\": \"", iostr);
raptor_string_ntriples_write(l->string, l->string_len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
if(l->language) {
raptor_iostream_string_write(",\n \"xml:lang\" : \"", iostr);
raptor_iostream_string_write(RASQAL_GOOD_CAST(const unsigned char*, l->language), iostr);
raptor_iostream_write_byte('"', iostr);
}
if(l->datatype) {
raptor_iostream_string_write(",\n \"datatype\" : \"", iostr);
str = RASQAL_GOOD_CAST(const unsigned char*, raptor_uri_as_counted_string(l->datatype, &len));
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
}
break;
case RASQAL_LITERAL_PATTERN:
case RASQAL_LITERAL_QNAME:
case RASQAL_LITERAL_INTEGER:
case RASQAL_LITERAL_XSD_STRING:
case RASQAL_LITERAL_BOOLEAN:
case RASQAL_LITERAL_DOUBLE:
case RASQAL_LITERAL_FLOAT:
case RASQAL_LITERAL_VARIABLE:
case RASQAL_LITERAL_DECIMAL:
case RASQAL_LITERAL_DATE:
case RASQAL_LITERAL_DATETIME:
case RASQAL_LITERAL_UDT:
case RASQAL_LITERAL_INTEGER_SUBTYPE:
case RASQAL_LITERAL_UNKNOWN:
default:
rasqal_log_error_simple(world, RAPTOR_LOG_LEVEL_ERROR, NULL,
"Cannot turn literal type %u into XML",
l->type);
}
}
/* End Binding */
raptor_iostream_counted_string_write(" }", 2, iostr);
column_comma = 1;
}
/*
* rasqal_query_results_write_sv:
* @iostr: #raptor_iostream to write the query to
* @results: #rasqal_query_results query results format
* @base_uri: #raptor_uri base URI of the output format
* @label: name of this format for errors
* @sep: column sep character
* @csv_escape: non-0 if values are written escaped with CSV rules, else turtle
* @variable_prefix: char to print before a variable name or NUL
* @eol_str: end of line string
* @eol_str_len: length of @eol_str
*
* INTERNAL - Write a @sep-separated values version of the query results format to an iostream.
*
* If the writing succeeds, the query results will be exhausted.
*
* Return value: non-0 on failure
**/
static int
rasqal_query_results_write_sv(raptor_iostream *iostr,
rasqal_query_results* results,
raptor_uri *base_uri,
const char* label,
const char sep,
int csv_escape,
const char variable_prefix,
const char* eol_str,
size_t eol_str_len)
{
rasqal_query* query = rasqal_query_results_get_query(results);
int i;
int vars_count;
if(!rasqal_query_results_is_bindings(results)) {
rasqal_log_error_simple(query->world, RAPTOR_LOG_LEVEL_ERROR,
&query->locator,
"Can only write %s format for variable binding results",
label);
return 1;
}
/* Header */
for(i = 0; 1; i++) {
const unsigned char *name;
name = rasqal_query_results_get_binding_name(results, i);
if(!name)
break;
if(i > 0)
raptor_iostream_write_byte(sep, iostr);
if(variable_prefix)
raptor_iostream_write_byte(variable_prefix, iostr);
raptor_iostream_string_write(name, iostr);
}
raptor_iostream_counted_string_write(eol_str, eol_str_len, iostr);
/* Variable Binding Results */
vars_count = rasqal_query_results_get_bindings_count(results);
while(!rasqal_query_results_finished(results)) {
/* Result row */
for(i = 0; i < vars_count; i++) {
rasqal_literal *l = rasqal_query_results_get_binding_value(results, i);
if(i > 0)
raptor_iostream_write_byte(sep, iostr);
if(l) {
const unsigned char* str;
size_t len;
switch(l->type) {
case RASQAL_LITERAL_URI:
str = RASQAL_GOOD_CAST(const unsigned char*, raptor_uri_as_counted_string(l->value.uri, &len));
if(csv_escape)
rasqal_iostream_write_csv_string(str, len, iostr);
else {
raptor_iostream_write_byte('<', iostr);
if(str && len > 0)
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte('>', iostr);
}
break;
case RASQAL_LITERAL_BLANK:
raptor_bnodeid_ntriples_write(l->string, l->string_len, iostr);
break;
case RASQAL_LITERAL_STRING:
if(csv_escape) {
rasqal_iostream_write_csv_string(l->string, l->string_len, iostr);
} else {
if(l->datatype && l->valid) {
rasqal_literal_type ltype;
ltype = rasqal_xsd_datatype_uri_to_type(l->world, l->datatype);
if(ltype >= RASQAL_LITERAL_INTEGER &&
ltype <= RASQAL_LITERAL_DECIMAL) {
/* write integer, float, double and decimal XSD typed
* data without quotes, datatype or language
*/
raptor_string_ntriples_write(l->string, l->string_len, '\0', iostr);
break;
}
}
raptor_iostream_write_byte('"', iostr);
raptor_string_ntriples_write(l->string, l->string_len, '"', iostr);
raptor_iostream_write_byte('"', iostr);
if(l->language) {
raptor_iostream_write_byte('@', iostr);
raptor_iostream_string_write(RASQAL_GOOD_CAST(const unsigned char*, l->language), iostr);
}
if(l->datatype) {
raptor_iostream_string_write("^^<", iostr);
str = RASQAL_GOOD_CAST(const unsigned char*, raptor_uri_as_counted_string(l->datatype, &len));
raptor_string_ntriples_write(str, len, '"', iostr);
raptor_iostream_write_byte('>', iostr);
}
}
break;
case RASQAL_LITERAL_PATTERN:
case RASQAL_LITERAL_QNAME:
case RASQAL_LITERAL_INTEGER:
case RASQAL_LITERAL_XSD_STRING:
case RASQAL_LITERAL_BOOLEAN:
case RASQAL_LITERAL_DOUBLE:
case RASQAL_LITERAL_FLOAT:
case RASQAL_LITERAL_VARIABLE:
case RASQAL_LITERAL_DECIMAL:
case RASQAL_LITERAL_DATE:
case RASQAL_LITERAL_DATETIME:
case RASQAL_LITERAL_UDT:
case RASQAL_LITERAL_INTEGER_SUBTYPE:
case RASQAL_LITERAL_UNKNOWN:
default:
rasqal_log_error_simple(query->world, RAPTOR_LOG_LEVEL_ERROR,
&query->locator,
"Cannot turn literal type %d into %s",
l->type, label);
}
}
/* End Binding */
}