Examples with Sequence io.dingodb.store.row.storage.Sequence used on opensource projects

Example 1 with Sequence

use of io.dingodb.store.row.storage.Sequence in project dingo by dingodb.

the class DefaultDingoRowStore 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.dingoRowStoreRpcService.callAsyncWithRpc(request, closure, lastCause);
    }
}

Example 2 with Sequence

use of io.dingodb.store.row.storage.Sequence in project dingo by dingodb.

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);
    }
}