public void When_I_Scan_with_a_PrefixFilter_I_get_the_expected_results()
{
FilterTestRecord example = _allExpectedRecords.First();
byte[] rawRowkey = Encoding.UTF8.GetBytes(example.RowKey);
const int prefixLength = 4;
var prefix = new byte[prefixLength];
Array.Copy(rawRowkey, prefix, prefixLength);
List <FilterTestRecord> expectedRecords = (from r in _allExpectedRecords
let rawKey = Encoding.UTF8.GetBytes(r.RowKey)
where rawKey[0] == prefix[0] && rawKey[1] == prefix[1] && rawKey[2] == prefix[2] && rawKey[3] == prefix[3]
select r).ToList();
var client = new HBaseClient(_credentials);
var scanner = new Scanner();
var filter = new PrefixFilter(prefix);
scanner.filter = filter.ToEncodedString();
ScannerInformation scanInfo = client.CreateScanner(_tableName, scanner);
List <FilterTestRecord> actualRecords = RetrieveResults(scanInfo).ToList();
actualRecords.ShouldContainOnly(expectedRecords);
}
public void When_I_Scan_with_a_PrefixFilter_I_get_the_expected_results()
{
var example = _allExpectedRecords.First();
var rawRowKey = Encoding.UTF8.GetBytes(example.RowKey);
const int prefixLength = 4;
var prefix = new byte[prefixLength];
Array.Copy(rawRowKey, prefix, prefixLength);
var expectedRecords = (from r in _allExpectedRecords
let rawKey = ByteString.CopyFromUtf8(r.RowKey)
where rawKey[0] == prefix[0] && rawKey[1] == prefix[1] && rawKey[2] == prefix[2] && rawKey[3] == prefix[3]
select r).ToList();
var client = new HBaseClient(RequestOptionsFactory.GetDefaultOptions());
var scanner = new Scanner();
var filter = new PrefixFilter(prefix);
scanner.Filter = filter.ToEncodedString();
ScannerInformation scanInfo = null;
try
{
scanInfo = client.CreateScannerAsync(_tableName, scanner).Result;
var actualRecords = RetrieveResults(scanInfo).ToList();
actualRecords.ShouldContainOnly(expectedRecords);
}
finally
{
if (scanInfo != null)
{
client.DeleteScannerAsync(_tableName, scanInfo).Wait();
}
}
}