Examples with ScanResponse com.alipay.sofa.jraft.rhea.cmd.store.ScanResponse used on opensource projects

Example 1 with ScanResponse

use of com.alipay.sofa.jraft.rhea.cmd.store.ScanResponse in project sofa-jraft by sofastack.

the class DefaultRegionKVService method handleScanRequest.

@Override
public void handleScanRequest(final ScanRequest request, final RequestProcessClosure<BaseRequest, BaseResponse<?>> closure) {
    final ScanResponse response = new ScanResponse();
    response.setRegionId(getRegionId());
    response.setRegionEpoch(getRegionEpoch());
    try {
        KVParameterRequires.requireSameEpoch(request, getRegionEpoch());
        final BaseKVStoreClosure kvStoreClosure = new BaseKVStoreClosure() {

            @SuppressWarnings("unchecked")
            @Override
            public void run(final Status status) {
                if (status.isOk()) {
                    response.setValue((List<KVEntry>) getData());
                } else {
                    setFailure(request, response, status, getError());
                }
                closure.sendResponse(response);
            }
        };
        if (request.isReverse()) {
            this.rawKVStore.reverseScan(request.getStartKey(), request.getEndKey(), request.getLimit(), request.isReadOnlySafe(), request.isReturnValue(), kvStoreClosure);
        } else {
            this.rawKVStore.scan(request.getStartKey(), request.getEndKey(), request.getLimit(), request.isReadOnlySafe(), request.isReturnValue(), kvStoreClosure);
        }
    } catch (final Throwable t) {
        LOG.error("Failed to handle: {}, {}.", request, StackTraceUtil.stackTrace(t));
        response.setError(Errors.forException(t));
        closure.sendResponse(response);
    }
}