Examples with Scheduler org.exist.scheduler.Scheduler used on opensource projects

Example 6 with Scheduler

use of org.exist.scheduler.Scheduler in project exist by eXist-db.

the class JournalTest method switchFilesWrapsCurrentJournalFileNumberAround.

@Test
public void switchFilesWrapsCurrentJournalFileNumberAround() throws EXistException, IOException, ReadOnlyException {
    final BrokerPool mockBrokerPool = mock(BrokerPool.class);
    final Configuration mockConfiguration = mock(Configuration.class);
    final Scheduler mockScheduler = createNiceMock(Scheduler.class);
    expect(mockBrokerPool.getConfiguration()).andReturn(mockConfiguration);
    expect(mockConfiguration.getProperty(Journal.PROPERTY_RECOVERY_SYNC_ON_COMMIT, Journal.DEFAULT_SYNC_ON_COMMIT)).andReturn(Journal.DEFAULT_SYNC_ON_COMMIT);
    expect(mockConfiguration.getProperty(Journal.PROPERTY_RECOVERY_JOURNAL_DIR)).andReturn(null);
    expect(mockConfiguration.getProperty(Journal.PROPERTY_RECOVERY_SIZE_MIN, Journal.DEFAULT_MIN_SIZE)).andReturn(Journal.DEFAULT_MIN_SIZE);
    expect(mockConfiguration.getProperty(Journal.PROPERTY_RECOVERY_SIZE_LIMIT, Journal.DEFAULT_MAX_SIZE)).andReturn(Journal.DEFAULT_MAX_SIZE);
    expect(mockBrokerPool.getScheduler()).andReturn(mockScheduler);
    replay(mockBrokerPool, mockConfiguration);
    final Path tempJournalDir = TEMPORARY_FOLDER.newFolder().toPath();
    Files.createDirectories(tempJournalDir);
    assertTrue(Files.exists(tempJournalDir));
    final Journal journal = new Journal(mockBrokerPool, tempJournalDir);
    journal.initialize();
    // journal is not yet operating!
    assertEquals(-1, journal.getCurrentJournalFileNumber());
    // set the current journal file number to one less than the maximum
    journal.setCurrentJournalFileNumber((short) (Short.MAX_VALUE - 1));
    short currentJournalFileNumber = journal.getCurrentJournalFileNumber();
    // journal is not yet operating!
    assertEquals(Short.MAX_VALUE - 1, currentJournalFileNumber);
    // start the journal by calling switch files
    journal.switchFiles();
    currentJournalFileNumber = journal.getCurrentJournalFileNumber();
    // we should now be at the maximum
    assertEquals(Short.MAX_VALUE, currentJournalFileNumber);
    final Path journalFileMax = journal.getFile(currentJournalFileNumber);
    assertNotNull(journalFileMax);
    assertTrue(Files.exists(journalFileMax));
    // advance to a new journal by calling switch files, this should cause the journal file number to wrap around
    journal.switchFiles();
    currentJournalFileNumber = journal.getCurrentJournalFileNumber();
    // should be back at the start of the range for journal file numbers
    assertEquals(0, currentJournalFileNumber);
    final Path journalFile0 = journal.getFile(currentJournalFileNumber);
    assertNotNull(journalFile0);
    assertNotEquals(journalFileMax.toAbsolutePath().toString(), journalFile0.toAbsolutePath().toString());
    assertTrue(Files.exists(journalFile0));
    verify(mockBrokerPool, mockConfiguration);
}