Examples with Sequence com.alipay.sofa.jraft.rhea.storage.Sequence used on opensource projects

Example 6 with Sequence

use of com.alipay.sofa.jraft.rhea.storage.Sequence in project sofa-jraft by sofastack.

the class RocksKVStoreTest method getSequenceTest.

/**
 * Test method: {@link RocksRawKVStore#getSequence(byte[], int, KVStoreClosure)}
 */
@Test
public void getSequenceTest() throws InterruptedException {
    final byte[] seqKey = makeKey("seq_test");
    Sequence sequence = new SyncKVStore<Sequence>() {

        @Override
        public void execute(RawKVStore kvStore, KVStoreClosure closure) {
            kvStore.getSequence(seqKey, 199, closure);
        }
    }.apply(this.kvStore);
    assertEquals(sequence.getStartValue(), 0);
    assertEquals(sequence.getEndValue(), 199);
    Sequence sequence2 = new SyncKVStore<Sequence>() {

        @Override
        public void execute(RawKVStore kvStore, KVStoreClosure closure) {
            kvStore.getSequence(seqKey, 10, closure);
        }
    }.apply(this.kvStore);
    assertEquals(sequence2.getStartValue(), 199);
    assertEquals(sequence2.getEndValue(), 209);
    this.kvStore.resetSequence(seqKey, null);
    Sequence sequence3 = new SyncKVStore<Sequence>() {

        @Override
        public void execute(RawKVStore kvStore, KVStoreClosure closure) {
            kvStore.getSequence(seqKey, 11, closure);
        }
    }.apply(this.kvStore);
    assertEquals(sequence3.getStartValue(), 0);
    assertEquals(sequence3.getEndValue(), 11);
    // read-only
    Sequence sequence4 = new SyncKVStore<Sequence>() {

        @Override
        public void execute(RawKVStore kvStore, KVStoreClosure closure) {
            kvStore.getSequence(seqKey, 0, closure);
        }
    }.apply(this.kvStore);
    assertEquals(sequence4.getStartValue(), 11);
    assertEquals(sequence4.getEndValue(), 11);
    KVStoreClosure assertFailed = new BaseKVStoreClosure() {

        @Override
        public void run(Status status) {
            assertEquals("Fail to [GET_SEQUENCE], step must >= 0", status.getErrorMsg());
        }
    };
    this.kvStore.getSequence(seqKey, -1, assertFailed);
}

Example 7 with Sequence

use of com.alipay.sofa.jraft.rhea.storage.Sequence in project sofa-jraft by sofastack.

the class DefaultRheaKVStore method internalGetSequence.

private void internalGetSequence(final byte[] seqKey, final int step, final CompletableFuture<Sequence> future, final int retriesLeft, final Errors lastCause) {
    final Region region = this.pdClient.findRegionByKey(seqKey, ErrorsHelper.isInvalidEpoch(lastCause));
    final RegionEngine regionEngine = getRegionEngine(region.getId(), true);
    final RetryRunner retryRunner = retryCause -> internalGetSequence(seqKey, step, future, retriesLeft - 1, retryCause);
    final FailoverClosure<Sequence> closure = new FailoverClosureImpl<>(future, retriesLeft, retryRunner);
    if (regionEngine != null) {
        if (ensureOnValidEpoch(region, regionEngine, closure)) {
            getRawKVStore(regionEngine).getSequence(seqKey, step, closure);
        }
    } else {
        final GetSequenceRequest request = new GetSequenceRequest();
        request.setSeqKey(seqKey);
        request.setStep(step);
        request.setRegionId(region.getId());
        request.setRegionEpoch(region.getRegionEpoch());
        this.rheaKVRpcService.callAsyncWithRpc(request, closure, lastCause);
    }
}

Example 8 with Sequence

use of com.alipay.sofa.jraft.rhea.storage.Sequence in project sofa-jraft by sofastack.

the class DefaultRegionKVService method handleGetSequence.

@Override
public void handleGetSequence(final GetSequenceRequest request, final RequestProcessClosure<BaseRequest, BaseResponse<?>> closure) {
    final GetSequenceResponse response = new GetSequenceResponse();
    response.setRegionId(getRegionId());
    response.setRegionEpoch(getRegionEpoch());
    try {
        KVParameterRequires.requireSameEpoch(request, getRegionEpoch());
        final byte[] seqKey = KVParameterRequires.requireNonNull(request.getSeqKey(), "sequence.seqKey");
        final int step = KVParameterRequires.requireNonNegative(request.getStep(), "sequence.step");
        this.rawKVStore.getSequence(seqKey, step, new BaseKVStoreClosure() {

            @Override
            public void run(final Status status) {
                if (status.isOk()) {
                    response.setValue((Sequence) getData());
                } else {
                    setFailure(request, response, status, getError());
                }
                closure.sendResponse(response);
            }
        });
    } catch (final Throwable t) {
        LOG.error("Failed to handle: {}, {}.", request, StackTraceUtil.stackTrace(t));
        response.setError(Errors.forException(t));
        closure.sendResponse(response);
    }
}