1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*use srdf::RDFNodeParse;
use srdf::{FocusRDF, NeighsRDF, RDFNode, SHACLPath, Triple, matcher::Any, shacl_path_parse};
use std::collections::HashSet;
use tracing::debug;
use super::helper_error::SRDFError;*/
// TODO: Remove the following functions which are implemented in SRDF
/*pub(crate) fn get_object_for<S: NeighsRDF>(
store: &S,
subject: &S::Term,
predicate: &S::IRI,
) -> Result<Option<RDFNode>, SRDFError> {
match get_objects_for(store, subject, predicate)?
.into_iter()
.next()
{
Some(term) => {
let obj = S::term_as_object(&term)?;
Ok(Some(obj))
}
None => Ok(None),
}
}
pub(crate) fn get_objects_for_shacl_path<S: NeighsRDF>(
store: &S,
subject: &S::Term,
path: &SHACLPath,
) -> Result<HashSet<S::Term>, SRDFError> {
match path {
SHACLPath::Predicate { pred } => {
let pred: S::IRI = pred.clone().into();
get_objects_for(store, subject, &pred)
}
SHACLPath::Alternative { paths } => {
let mut all_objects = HashSet::new();
for path in paths {
let objects = get_objects_for_shacl_path(store, subject, path)?;
all_objects.extend(objects);
}
Ok(all_objects)
}
SHACLPath::Sequence { paths } => match paths.as_slice() {
[] => Ok(HashSet::from([subject.clone()])),
[first, rest @ ..] => {
let first_objects = get_objects_for_shacl_path(store, subject, first)?;
let mut all_objects = HashSet::new();
for obj in first_objects {
let intermediate_objects = get_objects_for_shacl_path(
store,
&obj,
&SHACLPath::Sequence {
paths: rest.to_vec(),
},
)?;
all_objects.extend(intermediate_objects);
}
Ok(all_objects)
}
},
SHACLPath::Inverse { path } => {
let objects = get_subjects_for(store, &path.pred().unwrap().clone().into(), subject)?;
Ok(objects)
}
SHACLPath::ZeroOrMore { path } => {
let mut all_objects = HashSet::new();
all_objects.insert(subject.clone());
let mut to_process = vec![subject.clone()];
while let Some(current) = to_process.pop() {
let next_objects = get_objects_for_shacl_path(store, ¤t, path)?;
for obj in next_objects {
if all_objects.insert(obj.clone()) {
to_process.push(obj);
}
}
}
Ok(all_objects)
}
SHACLPath::OneOrMore { path } => {
let mut all_objects = HashSet::new();
let first_objects = get_objects_for_shacl_path(store, subject, path)?;
all_objects.extend(first_objects.clone());
let mut to_process: Vec<S::Term> = first_objects.into_iter().collect();
while let Some(current) = to_process.pop() {
let next_objects = get_objects_for_shacl_path(store, ¤t, path)?;
for obj in next_objects {
if all_objects.insert(obj.clone()) {
to_process.push(obj);
}
}
}
Ok(all_objects)
}
SHACLPath::ZeroOrOne { path } => {
let mut all_objects = HashSet::new();
all_objects.insert(subject.clone());
let next_objects = get_objects_for_shacl_path(store, subject, path)?;
all_objects.extend(next_objects);
Ok(all_objects)
}
}
}
pub(crate) fn get_objects_for<S: NeighsRDF>(
store: &S,
subject: &S::Term,
predicate: &S::IRI,
) -> Result<HashSet<S::Term>, SRDFError> {
let subject: S::Subject = match S::term_as_subject(subject) {
Ok(subject) => subject,
Err(_) => {
return Err(SRDFError::SRDFTermAsSubject {
subject: format!("{subject}"),
});
}
};
let subject_str = format!("{subject}");
let predicate_str = format!("{predicate}");
let triples = store
.triples_matching(subject, predicate.clone(), Any)
.map_err(|e| SRDFError::Srdf {
error: format!(
"Error obtaining objects for subject {} and predicate {}: {e}",
subject_str, predicate_str
),
})?
.map(Triple::into_object)
.collect();
Ok(triples)
}
pub(crate) fn get_subjects_for<S: NeighsRDF>(
store: &S,
predicate: &S::IRI,
object: &S::Term,
) -> Result<HashSet<S::Term>, SRDFError> {
let values = store
.triples_matching(Any, predicate.clone(), object.clone())
.map_err(|e| SRDFError::Srdf {
error: e.to_string(),
})?
.map(Triple::into_subject)
.map(Into::into)
.collect();
Ok(values)
}
pub(crate) fn get_path_for<R>(
rdf: &mut R,
subject: &R::Term,
predicate: &R::IRI,
) -> Result<Option<SHACLPath>, SRDFError>
where
R: FocusRDF,
{
match get_objects_for(rdf, subject, predicate)?.into_iter().next() {
Some(term) => match shacl_path_parse::<R>(term.clone()).parse_impl(rdf) {
Ok(path) => Ok(Some(path)),
Err(e) => {
debug!("Error parsing PATH from report...{e}");
Ok(None)
}
},
None => Ok(None),
}
/*match get_objects_for(store, subject, predicate)?
.into_iter()
.next()
{
Some(term) => {
let obj: Object = S::term_as_object(&term)?;
match obj {
Object::Iri(iri_s) => Ok(Some(SHACLPath::iri(iri_s))),
Object::BlankNode(_) => todo!(),
Object::Literal(literal) => Err(SRDFError::SHACLUnexpectedLiteral {
lit: literal.to_string(),
}),
Object::Triple { .. } => todo!(),
}
}
None => Ok(None),
}*/
}
*/