Examples with Versioned voldemort.versioning.Versioned used on opensource projects

Example 76 with Versioned

use of voldemort.versioning.Versioned in project voldemort by voldemort.

the class BdbStorageEngineTest method testPutAndLock.

@Test(timeout = 30000)
public void testPutAndLock() throws Exception {
    final ByteArray key = new ByteArray("putAndLock".getBytes());
    final byte[] valueBytes = "Lion".getBytes();
    store.put(key, new Versioned<byte[]>(valueBytes), null);
    // begin the read-modify-write cycle
    KeyLockHandle<byte[]> handle = store.getAndLock(key);
    // put will block and timeout
    try {
        store.put(key, new Versioned<byte[]>("Mountain Lion".getBytes()), null);
        fail("put(..) should have blocked and timedout");
    } catch (PersistenceFailureException pfe) {
        // expected
        assertTrue("Should have had a LockTimeoutException", pfe.getCause() instanceof LockTimeoutException);
    }
    // end the read-modify-write cycle
    handle.setValues(Lists.newArrayList(new Versioned<byte[]>("Mavericks".getBytes())));
    store.putAndUnlock(key, handle);
    // get should not block, and read out Mavericks
    List<Versioned<byte[]>> vals = store.get(key, null);
    assertEquals("Exactly one version", 1, vals.size());
    assertEquals("Should read back the version written by putAndUnlock", "Mavericks", new String(vals.get(0).getValue()));
}

Example 77 with Versioned

use of voldemort.versioning.Versioned in project voldemort by voldemort.

the class BdbStorageEngineTest method testConcurrentReadAndPut.

@Test
public void testConcurrentReadAndPut() throws Exception {
    ExecutorService executor = Executors.newFixedThreadPool(10);
    final CountDownLatch latch = new CountDownLatch(10);
    final AtomicBoolean returnedEmpty = new AtomicBoolean(false);
    final byte[] keyBytes = "foo".getBytes();
    final byte[] valueBytes = "bar".getBytes();
    store.put(new ByteArray(keyBytes), new Versioned<byte[]>(valueBytes), null);
    for (int i = 0; i < 10; i++) {
        executor.submit(new Runnable() {

            public void run() {
                try {
                    for (int j = 0; j < 1000 && !returnedEmpty.get(); j++) {
                        List<Versioned<byte[]>> vals = store.get(new ByteArray(keyBytes), null);
                        if (vals.size() == 0 && j > 1)
                            returnedEmpty.set(true);
                        else {
                            VectorClock v = (VectorClock) vals.get(0).getVersion();
                            v.incrementVersion(0, System.currentTimeMillis());
                            try {
                                store.put(new ByteArray(keyBytes), new Versioned<byte[]>(valueBytes, v), null);
                            } catch (ObsoleteVersionException e) {
                            // Ignore these
                            }
                        }
                    }
                } finally {
                    latch.countDown();
                }
            }
        });
    }
    latch.await();
    assertFalse("Should not have seen any empty results", returnedEmpty.get());
}

Example 78 with Versioned

use of voldemort.versioning.Versioned in project voldemort by voldemort.

the class MetadataStoreTest method testSimpleGetAndPut.

@Test
public void testSimpleGetAndPut() {
    for (int i = 0; i <= TEST_RUNS; i++) {
        ByteArray key = getValidKey();
        VectorClock clock = (VectorClock) metadataStore.get(key, null).get(0).getVersion();
        Versioned<byte[]> value = new Versioned<byte[]>(getValidValue(key), clock.incremented(0, 1));
        metadataStore.put(key, value, null);
        checkValues(value, metadataStore.get(key, null), key);
    }
}

Example 79 with Versioned

use of voldemort.versioning.Versioned in project voldemort by voldemort.

the class MetadataStoreTest method testObsoletePut.

@Test
public void testObsoletePut() {
    for (int i = 0; i <= TEST_RUNS; i++) {
        ByteArray key = getValidKey();
        VectorClock clock = (VectorClock) metadataStore.get(key, null).get(0).getVersion();
        Versioned<byte[]> value = new Versioned<byte[]>(getValidValue(key), clock.incremented(0, 1));
        try {
            metadataStore.put(key, value, null);
            assertTrue(true);
            metadataStore.put(key, value, null);
            fail();
        } catch (ObsoleteVersionException e) {
        // expected ObsoleteVersionException
        }
    }
}

Example 80 with Versioned

use of voldemort.versioning.Versioned in project voldemort by voldemort.

the class MetadataStoreTest method testSynchronousPut.

@Test
public void testSynchronousPut() {
    for (int i = 0; i <= TEST_RUNS; i++) {
        ByteArray key = getValidKey();
        VectorClock clock = (VectorClock) metadataStore.get(key, null).get(0).getVersion();
        Versioned<byte[]> value1 = new Versioned<byte[]>(getValidValue(key), clock.incremented(1, 1));
        Versioned<byte[]> value2 = new Versioned<byte[]>(getValidValue(key), clock.incremented(2, 1));
        metadataStore.put(key, value1, null);
        metadataStore.put(key, value2, null);
        assertEquals("Only one metadata value should return", 1, metadataStore.get(key, null).size());
        checkValues(value2, metadataStore.get(key, null), key);
    }
}