Package com.thinkaurelius.titan.diskstorage

Examples of com.thinkaurelius.titan.diskstorage.StaticBuffer

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        for (Map.Entry<String, Map<StaticBuffer, KCVMutation>> keyMutation : mutations.entrySet()) {
            String columnFamily = keyMutation.getKey();
            for (Map.Entry<StaticBuffer, KCVMutation> mutEntry : keyMutation.getValue().entrySet()) {
                StaticBuffer key = mutEntry.getKey();
                ByteBuffer keyBB = key.asByteBuffer();

                // Get or create the single Cassandra Mutation object responsible for this key
                Map<String, List<org.apache.cassandra.thrift.Mutation>> cfmutation = batch.get(keyBB);
                if (cfmutation == null) {
                    cfmutation = new HashMap<String, List<org.apache.cassandra.thrift.Mutation>>(3); // TODO where did the magic number 3 come from?
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            DataOutput out2 = serialize.getDataOutput(32 + 5, true);
            String s1 = RandomGenerator.randomString(1, 32);
            String s2 = RandomGenerator.randomString(1, 32);
            out1.writeObjectNotNull(s1);
            out2.writeObjectNotNull(s2);
            StaticBuffer b1 = out1.getStaticBuffer();
            StaticBuffer b2 = out2.getStaticBuffer();
            assertEquals(s1, serialize.readObjectNotNull(b1.asReadBuffer(), String.class));
            assertEquals(s2, serialize.readObjectNotNull(b2.asReadBuffer(), String.class));
            //todo: sort order test fails because... a bug in StaticArrayBuffer.compareTo() and ByteBuffer.compareTo(), where we ignore sign bit for 'byte' during int conversion!
            /*
             * ByteBufferUtil.java:
             * public static int compare(byte c1, byte c2) {
             *    return new Byte(c1).compareTo(new Byte(c2));
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            DataOutput out2 = serialize.getDataOutput(32 + 5, true);
            String s1 = RandomGenerator.randomString(1, 32);
            String s2 = RandomGenerator.randomString(1, 32);
            out1.writeObjectNotNull(s1);
            out2.writeObjectNotNull(s2);
            StaticBuffer b1 = out1.getStaticBuffer();
            StaticBuffer b2 = out2.getStaticBuffer();
            assertEquals(s1, serialize.readObjectNotNull(b1.asReadBuffer(), String.class));
            assertEquals(s2, serialize.readObjectNotNull(b2.asReadBuffer(), String.class));
            assertEquals(s1 + " vs " + s2, Integer.signum(s1.compareTo(s2)), Integer.signum(b1.compareTo(b2)));
        }
    }
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        DataOutput out = serialize.getDataOutput(128, true);
        out.putLong(8);
        out.writeClassAndObject(Long.valueOf(8));
        TestClass c = new TestClass(5, 8, new short[]{1, 2, 3, 4, 5}, TestEnum.Two);
        out.writeObject(c, TestClass.class);
        final StaticBuffer b = out.getStaticBuffer();

        int numThreads = 100;
        Thread[] threads = new Thread[numThreads];
        for (int i = 0; i < numThreads; i++) {
            threads[i] = new Thread(new Runnable() {
                @Override
                public void run() {
                    for (int j = 0; j < 100000; j++) {
                        ReadBuffer c = b.asReadBuffer();
                        assertEquals(8, c.getLong());
                        Long l = (Long) serialize.readClassAndObject(c);
                        assertEquals(8, l.longValue());
                        TestClass c2 = serialize.readObjectNotNull(c, TestClass.class);
                    }
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     */
    @Test
    public void testWriteLockRetriesAfterOneStoreTimeout() throws StorageException {
        expect(lockState.has(defaultTx, defaultLockID)).andReturn(false);
        recordSuccessfulLocalLock();
        StaticBuffer firstCol = recordSuccessfulLockWrite(5, TimeUnit.SECONDS, null).col; // too slow
        LockInfo secondLI = recordSuccessfulLockWrite(1, TimeUnit.NANOSECONDS, firstCol); // plenty fast
        recordSuccessfulLocalLock(secondLI.tsNS);
        lockState.take(eq(defaultTx), eq(defaultLockID), eq(secondLI.stat));
        ctrl.replay();

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     */
    @Test
    public void testWriteLockThrowsExceptionAfterMaxStoreTimeouts() throws StorageException {
        expect(lockState.has(defaultTx, defaultLockID)).andReturn(false);
        recordSuccessfulLocalLock();
        StaticBuffer firstCol = recordSuccessfulLockWrite(5, TimeUnit.SECONDS, null).col;
        StaticBuffer secondCol = recordSuccessfulLockWrite(5, TimeUnit.SECONDS, firstCol).col;
        StaticBuffer thirdCol = recordSuccessfulLockWrite(5, TimeUnit.SECONDS, secondCol).col;
        recordSuccessfulLockDelete(1, TimeUnit.NANOSECONDS, thirdCol);
        recordSuccessfulLocalUnlock();
        ctrl.replay();

        StorageException expected = null;
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    public void testWriteLockDiesOnPermanentStorageException() throws StorageException {
        PermanentStorageException errOnFire = new PermanentStorageException("Storage cluster is on fire");

        expect(lockState.has(defaultTx, defaultLockID)).andReturn(false);
        recordSuccessfulLocalLock();
        StaticBuffer lockCol = recordExceptionLockWrite(1, TimeUnit.NANOSECONDS, null, errOnFire);
        recordSuccessfulLockDelete(1, TimeUnit.NANOSECONDS, lockCol);
        recordSuccessfulLocalUnlock();
        ctrl.replay();

        StorageException expected = null;
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    public void testWriteLockRetriesOnTemporaryStorageException() throws StorageException {
        TemporaryStorageException tse = new TemporaryStorageException("Storage cluster is waking up");

        expect(lockState.has(defaultTx, defaultLockID)).andReturn(false);
        recordSuccessfulLocalLock();
        StaticBuffer firstCol = recordExceptionLockWrite(1, TimeUnit.NANOSECONDS, null, tse);
        LockInfo secondLI = recordSuccessfulLockWrite(1, TimeUnit.NANOSECONDS, firstCol);
        recordSuccessfulLocalLock(secondLI.tsNS);
        lockState.take(eq(defaultTx), eq(defaultLockID), eq(secondLI.stat));
        ctrl.replay();
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        final ConsistentKeyLockStatus ls = makeStatusNow();
        expect(lockState.getLocksForTx(defaultTx)).andReturn(ImmutableMap.of(defaultLockID, ls));
        currentTimeNS += TimeUnit.NANOSECONDS.convert(10, TimeUnit.SECONDS);

        expect(times.sleepUntil(ls.getWriteTimestamp(TimeUnit.NANOSECONDS) + defaultWaitNS)).andReturn(currentTimeNS);
        final StaticBuffer lc = codec.toLockCol(ls.getWriteTimestamp(TimeUnit.NANOSECONDS), defaultLockRid);
        recordLockGetSliceAndReturnSingleEntry(new StaticBufferEntry(lc, defaultLockVal));
        ctrl.replay();

        locker.checkLocks(defaultTx);
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     *                              we catch and swallow it)
     */
    @Test
    public void testCheckLocksFailsWithSeniorClaimsByOthers() throws InterruptedException, StorageException {
        // Make a pre-existing valid lock by some other tx (written by another process)
        StaticBuffer otherSeniorLockCol = codec.toLockCol(currentTimeNS, otherLockRid);
        currentTimeNS += TimeUnit.NANOSECONDS.convert(1, TimeUnit.NANOSECONDS);
        // Expect checker to fetch locks for defaultTx; return just our own lock (not the other guy's)
        StaticBuffer ownJuniorLockCol = codec.toLockCol(currentTimeNS, defaultLockRid);
        ConsistentKeyLockStatus ownJuniorLS = makeStatusNow();
        expect(lockState.getLocksForTx(defaultTx)).andReturn(ImmutableMap.of(defaultLockID, ownJuniorLS));

        currentTimeNS += TimeUnit.NANOSECONDS.convert(10, TimeUnit.SECONDS);

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