Examples with Journal org.apache.jena.tdb.transaction.Journal used on opensource projects

Example 1 with Journal

use of org.apache.jena.tdb.transaction.Journal 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 2 with Journal

use of org.apache.jena.tdb.transaction.Journal in project jena by apache.

the class dumpjournal method exec.

@Override
protected void exec() {
    Location loc = modLocation.getLocation();
    Journal journal = determineJournal(loc);
    dump(System.out, journal);
}