Package: SnapshotStorage
SnapshotStorage
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SnapshotStorage(DriverConfiguration) |
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addCentralData(Dataset) |
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lambda$addCentralData$0(Dataset) |
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Coverage
1: /*
2: * JOPA
3: * Copyright (C) 2024 Czech Technical University in Prague
4: *
5: * This library is free software; you can redistribute it and/or
6: * modify it under the terms of the GNU Lesser General Public
7: * License as published by the Free Software Foundation; either
8: * version 3.0 of the License, or (at your option) any later version.
9: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library.
17: */
18: package cz.cvut.kbss.ontodriver.jena.connector;
19:
20: import cz.cvut.kbss.ontodriver.config.DriverConfiguration;
21: import org.apache.jena.query.Dataset;
22: import org.apache.jena.query.DatasetFactory;
23: import org.apache.jena.system.Txn;
24:
25: import java.util.Iterator;
26:
27: /**
28: * Represents a snapshot of the main dataset.
29: *
30: * Can be used to apply transactional changes and be thrown away in case the transaction is rolled back.
31: */
32: class SnapshotStorage extends LocalStorage {
33:
34: SnapshotStorage(DriverConfiguration configuration) {
35: super(configuration);
36: this.dataset = DatasetFactory.create();
37: }
38:
39: void addCentralData(Dataset central) {
40: Txn.executeRead(central, () -> {
41: final Iterator<String> it = central.listNames();
42:• while (it.hasNext()) {
43: final String name = it.next();
44: dataset.addNamedModel(name, central.getNamedModel(name));
45: }
46: dataset.setDefaultModel(central.getDefaultModel());
47: });
48: }
49: }