NextGraph
/
oxigraph
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Activity

JSON query results: Ignore unknown keys

Browse Source 
Allows to parse e.g. Virtuoso query results
pull/216/head
Tpt 3 years ago
parent 1f7e59dde7
commit 9c06f7f097
5 changed files with 96 additions and 10 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 50
      lib/sparesults/src/json.rs
  2. 17
      testsuite/oxigraph-tests/sparql-results/ignored_keys.srj
  3. 13
      testsuite/oxigraph-tests/sparql-results/ignored_keys.srx
  4. 10
      testsuite/oxigraph-tests/sparql-results/manifest.ttl
  5. 16
      testsuite/src/sparql_evaluator.rs

50
lib/sparesults/src/json.rs
Unescape View File

@ -154,11 +154,17 @@ impl<R: BufRead> JsonQueryResultsReader<R> {
if reader.read_event(&mut buffer)? != JsonEvent::StartObject {
return Err(SyntaxError::msg("'results' should be an object").into());
}
if reader.read_event(&mut buffer)? != JsonEvent::ObjectKey("bindings") {
return Err(SyntaxError::msg(
"'results' should contain a 'bindings' key",
)
.into());
loop {
match reader.read_event(&mut buffer)? {
JsonEvent::ObjectKey("bindings") => break, // Found
JsonEvent::ObjectKey(_) => ignore_value(&mut reader, &mut buffer)?,
_ => {
return Err(SyntaxError::msg(
"'results' should contain a 'bindings' key",
)
.into())
}
}
}
if reader.read_event(&mut buffer)? != JsonEvent::StartArray {
return Err(SyntaxError::msg("'bindings' should be an object").into());
@ -495,14 +501,38 @@ fn read_head<R: BufRead>(
}
}
}
_ => {
return Err(
SyntaxError::msg(format!("Unexpected key in head: '{}'", key)).into(),
)
}
_ => ignore_value(reader, buffer)?,
},
JsonEvent::EndObject => return Ok(variables),
_ => return Err(SyntaxError::msg("Invalid head serialization").into()),
}
}
}
fn ignore_value<R: BufRead>(
reader: &mut JsonReader<R>,
buffer: &mut Vec<u8>,
) -> Result<(), ParseError> {
let mut nesting = 0;
loop {
match reader.read_event(buffer)? {
JsonEvent::Boolean(_)
| JsonEvent::Null
| JsonEvent::Number(_)
| JsonEvent::String(_) => {
if nesting == 0 {
return Ok(());
}
}
JsonEvent::ObjectKey(_) => (),
JsonEvent::StartArray | JsonEvent::StartObject => nesting += 1,
JsonEvent::EndArray | JsonEvent::EndObject => {
nesting -= 1;
if nesting == 0 {
return Ok(());
}
}
JsonEvent::Eof => return Err(SyntaxError::msg("Unexpected end of file").into()),
}
}
}

17
testsuite/oxigraph-tests/sparql-results/ignored_keys.srj
Unescape View File

@ -0,0 +1,17 @@
{
"head": {
"vars": ["s"],
"custom": null
},
"results": {
"custom": {"foo": [true, false]},
"bindings": [
{
"s": {
"type": "uri",
"value": "http://example.org/s1"
}
}
]
}
}

13
testsuite/oxigraph-tests/sparql-results/ignored_keys.srx
Unescape View File

@ -0,0 +1,13 @@
<?xml version="1.0"?>
<sparql xmlns="http://www.w3.org/2005/sparql-results#">
<head custom="foo">
<variable name="s"/>
</head>
<results custom="foo">
<result>
<binding name="s">
<uri>http://example.com/a</uri>
</binding>
</result>
</results>
</sparql>

10
testsuite/oxigraph-tests/sparql-results/manifest.ttl
Unescape View File

@ -11,6 +11,8 @@
:results_json_duplicated_variables
:results_xml_duplicated_variables
:results_tsv_duplicated_variables
:results_json_ignored_keys
:results_xml_ignored_keys
) .
:results_json_duplicated_variables rdf:type ox:NegativeJsonResultsSyntaxTest ;
@ -24,3 +26,11 @@
:results_xml_duplicated_variables rdf:type ox:NegativeTsvResultsSyntaxTest ;
mf:name "Duplicated variables are not allowed" ;
mf:action <duplicated_variables.tsv> .
:results_json_ignored_keys rdf:type ox:PositiveJsonResultsSyntaxTest ;
mf:name "Ignore unknown keys in objects" ;
mf:action <ignored_keys.srj> .
:results_xml_ignored_keys rdf:type ox:PositiveXmlResultsSyntaxTest ;
mf:name "Ignore unknown attributes on tags" ;
mf:action <ignored_keys.srx> .

16
testsuite/src/sparql_evaluator.rs
Unescape View File

@ -47,10 +47,18 @@ pub fn register_sparql_tests(evaluator: &mut TestEvaluator) {
"http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#UpdateEvaluationTest",
evaluate_update_evaluation_test,
);
evaluator.register(
"https://github.com/oxigraph/oxigraph/tests#PositiveJsonResultsSyntaxTest",
evaluate_positive_json_result_syntax_test,
);
evaluator.register(
"https://github.com/oxigraph/oxigraph/tests#NegativeJsonResultsSyntaxTest",
evaluate_negative_json_result_syntax_test,
);
evaluator.register(
"https://github.com/oxigraph/oxigraph/tests#PositiveXmlResultsSyntaxTest",
evaluate_positive_xml_result_syntax_test,
);
evaluator.register(
"https://github.com/oxigraph/oxigraph/tests#NegativeXmlResultsSyntaxTest",
evaluate_negative_xml_result_syntax_test,
@ -95,6 +103,10 @@ fn evaluate_negative_syntax_test(test: &Test) -> Result<()> {
}
}
fn evaluate_positive_json_result_syntax_test(test: &Test) -> Result<()> {
result_syntax_check(test, QueryResultsFormat::Json)
}
fn evaluate_negative_json_result_syntax_test(test: &Test) -> Result<()> {
if result_syntax_check(test, QueryResultsFormat::Json).is_ok() {
Err(anyhow!("Oxigraph parses even if it should not {}.", test))
@ -103,6 +115,10 @@ fn evaluate_negative_json_result_syntax_test(test: &Test) -> Result<()> {
}
}
fn evaluate_positive_xml_result_syntax_test(test: &Test) -> Result<()> {
result_syntax_check(test, QueryResultsFormat::Xml)
}
fn evaluate_negative_xml_result_syntax_test(test: &Test) -> Result<()> {
if result_syntax_check(test, QueryResultsFormat::Xml).is_ok() {
Err(anyhow!("Oxigraph parses even if it should not {}.", test))

Write Preview
Loading…
Cancel
Save