Examples with Dataset org.apache.jena.query.Dataset used on opensource projects

Example 16 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class T_TDBWriteTransaction method run.

public static void run(String location) {
    if (false) {
        Journal journal = Journal.create(Location.create(location));
        JournalControl.print(journal);
        journal.close();
    }
    //String location = args[0]; // + "/" + UUID.randomUUID().toString();
    //String baseGraphName = "com.ibm.test.graphNamePrefix.";   
    long totalExecTime = 0L;
    long size = 0;
    Dataset dataset = TDBFactory.createDataset(location);
    Dataset dataset1 = TDBFactory.createDataset(location);
    if (bracketWithReader)
        dataset1.begin(ReadWrite.READ);
    for (int i = 0; i < TOTAL; i++) {
        List<String> lastProcessedUris = new ArrayList<>();
        for (int j = 0; j < 10 * i; j++) {
            String lastProcessedUri = "http://test.net/xmlns/test/1.0/someUri" + j;
            lastProcessedUris.add(lastProcessedUri);
        }
        //Dataset dataset = TDBFactory.createDataset(location);
        //String graphName = baseGraphName + i;
        long t = System.currentTimeMillis();
        try {
            dataset.begin(ReadWrite.WRITE);
            Model m = dataset.getDefaultModel();
            m.removeAll();
            Resource subject = m.createResource(INDEX_INFO_SUBJECT);
            Property predicate = m.createProperty(TIMESTAMP_PREDICATE);
            m.addLiteral(subject, predicate, System.currentTimeMillis());
            predicate = m.createProperty(URI_PREDICATE);
            for (String uri : lastProcessedUris) {
                m.add(subject, predicate, m.createResource(uri));
            }
            predicate = m.createProperty(VERSION_PREDICATE);
            m.addLiteral(subject, predicate, 1.0);
            size += m.size() + 1;
            predicate = m.createProperty(INDEX_SIZE_PREDICATE);
            m.addLiteral(subject, predicate, size);
            dataset.commit();
        } catch (Throwable e) {
            dataset.abort();
            throw new RuntimeException(e);
        } finally {
            dataset.end();
            long writeOperationDuration = System.currentTimeMillis() - t;
            totalExecTime += writeOperationDuration;
            System.out.println("Write operation " + i + " took " + writeOperationDuration + "ms");
        }
    }
    if (bracketWithReader)
        dataset1.end();
    System.out.println("All " + TOTAL + " write operations wrote " + size + " triples and took " + totalExecTime + "ms");
}

Example 17 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class InMemDatasetAssembler method open.

@Override
public Dataset open(final Assembler assembler, final Resource root, final Mode mode) {
    checkType(root, DatasetAssemblerVocab.tDatasetTxnMem);
    final Dataset dataset = createTxnMem();
    setContext(root, dataset.getContext());
    dataset.begin(WRITE);
    // load data into the default graph
    if (root.hasProperty(data)) {
        multiValueResource(root, data).forEach(defaultGraphDocument -> read(dataset, defaultGraphDocument.getURI()));
    }
    // load data into named graphs
    multiValueResource(root, pNamedGraph).forEach(namedGraphResource -> {
        final String graphName = getAsStringValue(namedGraphResource, pGraphName);
        if (namedGraphResource.hasProperty(data)) {
            multiValueResource(namedGraphResource, data).forEach(namedGraphData -> read(dataset.getNamedModel(graphName), namedGraphData.getURI()));
        }
    });
    dataset.commit();
    dataset.end();
    return dataset;
}

Example 18 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractTestTransactionLifecycle method testCommitCommit.

private void testCommitCommit(ReadWrite mode) {
    Dataset ds = create();
    ds.begin(mode);
    ds.commit();
    try {
        ds.commit();
        fail("Expected transaction exception - commit-commit(" + mode + ")");
    } catch (JenaTransactionException ex) {
        safeEnd(ds);
    }
}

Example 19 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractTestTransactionLifecycle method testAbortCommit.

private void testAbortCommit(ReadWrite mode) {
    assumeTrue(supportsAbort());
    Dataset ds = create();
    ds.begin(mode);
    ds.abort();
    try {
        ds.commit();
        fail("Expected transaction exception - abort-commit(" + mode + ")");
    } catch (JenaTransactionException ex) {
        safeEnd(ds);
    }
}

Example 20 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractWholeFileQuadInputFormatTests method writeGoodTuples.

private void writeGoodTuples(OutputStream output, int num) {
    Dataset ds = DatasetFactory.createGeneral();
    Model m = ModelFactory.createDefaultModel();
    Resource currSubj = m.createResource("http://example.org/subjects/0");
    Property predicate = m.createProperty("http://example.org/predicate");
    for (int i = 0; i < num; i++) {
        if (i % 100 == 0) {
            ds.addNamedModel("http://example.org/graphs/" + (i / 100), m);
            m = ModelFactory.createDefaultModel();
        }
        if (i % 10 == 0) {
            currSubj = m.createResource("http://example.org/subjects/" + (i / 10));
        }
        m.add(currSubj, predicate, m.createTypedLiteral(i));
    }
    if (!m.isEmpty()) {
        ds.addNamedModel("http://example.org/graphs/extra", m);
    }
    this.writeTuples(ds, output);
}