-
Notifications
You must be signed in to change notification settings - Fork 14
/
AxiomSaver.java
89 lines (79 loc) · 4.2 KB
/
AxiomSaver.java
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
/**
* Copyright (C) 2022 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.ontodriver.rdf4j;
import cz.cvut.kbss.ontodriver.descriptor.AxiomValueDescriptor;
import cz.cvut.kbss.ontodriver.model.Assertion;
import cz.cvut.kbss.ontodriver.model.NamedResource;
import cz.cvut.kbss.ontodriver.model.Value;
import cz.cvut.kbss.ontodriver.rdf4j.connector.Connector;
import cz.cvut.kbss.ontodriver.rdf4j.exception.Rdf4jDriverException;
import cz.cvut.kbss.ontodriver.rdf4j.util.Rdf4jUtils;
import org.eclipse.rdf4j.model.IRI;
import org.eclipse.rdf4j.model.Resource;
import org.eclipse.rdf4j.model.Statement;
import java.net.URI;
import java.util.*;
class AxiomSaver {
private final Connector connector;
private final ValueConverter valueConverter;
AxiomSaver(Connector connector) {
this.connector = connector;
this.valueConverter = new ValueConverter(connector.getValueFactory());
}
void persistAxioms(AxiomValueDescriptor axiomDescriptor) throws Rdf4jDriverException {
final List<Statement> statements = new ArrayList<>();
for (Assertion assertion : axiomDescriptor.getAssertions()) {
statements.addAll(createRdf4jStatements(axiomDescriptor.getSubject(), assertion,
axiomDescriptor.getAssertionValues(assertion),
axiomDescriptor.getAssertionContext(assertion)));
}
if (!statements.isEmpty()) {
connector.addStatements(statements);
}
}
void persistAxioms(NamedResource subject, Map<Assertion, Set<Value<?>>> values, URI context)
throws Rdf4jDriverException {
final List<Statement> statements = new ArrayList<>();
for (Map.Entry<Assertion, Set<Value<?>>> entry : values.entrySet()) {
statements.addAll(createRdf4jStatements(subject, entry.getKey(), entry.getValue(), context));
}
if (!statements.isEmpty()) {
connector.addStatements(statements);
}
}
private Collection<? extends Statement> createRdf4jStatements(NamedResource subject,
Assertion assertion,
Collection<Value<?>> assertionValues,
URI assertionContext) throws Rdf4jDriverException {
final List<Statement> statements = new ArrayList<>(assertionValues.size());
final Resource subjectUri = Rdf4jUtils.toRdf4jIri(subject.getIdentifier(), connector.getValueFactory());
final IRI property = Rdf4jUtils.toRdf4jIri(assertion.getIdentifier(), connector.getValueFactory());
final IRI context = assertionContext != null ? Rdf4jUtils.toRdf4jIri(assertionContext, connector.getValueFactory()) : null;
for (Value<?> val : assertionValues) {
if (val == Value.nullValue()) {
continue;
}
org.eclipse.rdf4j.model.Value value = valueConverter.toRdf4jValue(assertion, val);
statements.add(createStatement(subjectUri, property, value, context));
}
return statements;
}
private Statement createStatement(Resource subject, IRI property, org.eclipse.rdf4j.model.Value value,
IRI context) {
if (context != null) {
return connector.getValueFactory().createStatement(subject, property, value, context);
} else {
return connector.getValueFactory().createStatement(subject, property, value);
}
}
}