Examples with LocationLock org.apache.jena.tdb.base.file.LocationLock used on opensource projects

Example 6 with LocationLock

use of org.apache.jena.tdb.base.file.LocationLock in project jena by apache.

the class TestLocationLock method location_lock_dir_01.

@Test
public void location_lock_dir_01() {
    Location dir = Location.create(tempDir.getRoot().getAbsolutePath());
    LocationLock lock = dir.getLock();
    Assert.assertTrue(lock.canLock());
    Assert.assertFalse(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
    Assert.assertTrue(lock.canObtain());
    // Try to obtain the lock
    lock.obtain();
    Assert.assertTrue(lock.isLocked());
    Assert.assertTrue(lock.isOwned());
    // Release the lock
    lock.release();
    Assert.assertFalse(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
}

Example 7 with LocationLock

use of org.apache.jena.tdb.base.file.LocationLock in project jena by apache.

the class TestLocationLock method location_lock_dir_error_01.

@Test(expected = TDBException.class)
public void location_lock_dir_error_01() throws IOException {
    Assume.assumeTrue(negativePidsTreatedAsAlive);
    Location dir = Location.create(tempDir.getRoot().getAbsolutePath());
    LocationLock lock = dir.getLock();
    Assert.assertTrue(lock.canLock());
    Assert.assertFalse(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
    Assert.assertTrue(lock.canObtain());
    // Write a fake PID to the lock file
    try (BufferedWriter writer = new BufferedWriter(new FileWriter(dir.getPath("tdb.lock")))) {
        // Fake PID that would never be valid
        writer.write(Integer.toString(-1234));
    }
    Assert.assertTrue(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
    // Attempting to obtain the lock should now error
    Assert.assertFalse(lock.canObtain());
    lock.obtain();
}

Example 8 with LocationLock

use of org.apache.jena.tdb.base.file.LocationLock in project jena by apache.

the class TestLocationLock method location_lock_dir_error_02.

@Test(expected = TDBException.class)
public void location_lock_dir_error_02() throws IOException {
    Assume.assumeTrue(negativePidsTreatedAsAlive);
    Location dir = Location.create(tempDir.getRoot().getAbsolutePath());
    LocationLock lock = dir.getLock();
    Assert.assertTrue(lock.canLock());
    Assert.assertFalse(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
    Assert.assertTrue(lock.canObtain());
    // Write a fake PID to the lock file
    try (BufferedWriter writer = new BufferedWriter(new FileWriter(dir.getPath("tdb.lock")))) {
        // Fake PID that would never be valid
        writer.write(Integer.toString(-1234));
    }
    Assert.assertTrue(lock.isLocked());
    Assert.assertFalse(lock.isOwned());
    // Attempting to release a lock we don't own should error
    Assert.assertFalse(lock.canObtain());
    lock.release();
}