forked from apache/arrow-adbc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathHiveServer2Connection.cs
1588 lines (1411 loc) · 71.3 KB
/
HiveServer2Connection.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using Apache.Arrow.Adbc.Drivers.Apache.Thrift;
using Apache.Arrow.Adbc.Extensions;
using Apache.Arrow.Ipc;
using Apache.Arrow.Types;
using Apache.Hive.Service.Rpc.Thrift;
using Thrift.Protocol;
using Thrift.Transport;
namespace Apache.Arrow.Adbc.Drivers.Apache.Hive2
{
internal abstract class HiveServer2Connection : AdbcConnection
{
internal const bool InfoVendorSql = true;
internal const long BatchSizeDefault = 50000;
internal const int PollTimeMillisecondsDefault = 500;
private const int ConnectTimeoutMillisecondsDefault = 30000;
private TTransport? _transport;
private TCLIService.Client? _client;
private readonly Lazy<string> _vendorVersion;
private readonly Lazy<string> _vendorName;
readonly AdbcInfoCode[] infoSupportedCodes = [
AdbcInfoCode.DriverName,
AdbcInfoCode.DriverVersion,
AdbcInfoCode.DriverArrowVersion,
AdbcInfoCode.VendorName,
AdbcInfoCode.VendorSql,
AdbcInfoCode.VendorVersion,
];
internal const string ColumnDef = "COLUMN_DEF";
internal const string ColumnName = "COLUMN_NAME";
internal const string DataType = "DATA_TYPE";
internal const string IsAutoIncrement = "IS_AUTO_INCREMENT";
internal const string IsNullable = "IS_NULLABLE";
internal const string OrdinalPosition = "ORDINAL_POSITION";
internal const string TableCat = "TABLE_CAT";
internal const string TableCatalog = "TABLE_CATALOG";
internal const string TableName = "TABLE_NAME";
internal const string TableSchem = "TABLE_SCHEM";
internal const string TableMd = "TABLE_MD";
internal const string TableType = "TABLE_TYPE";
internal const string TypeName = "TYPE_NAME";
internal const string Nullable = "NULLABLE";
internal const string ColumnSize = "COLUMN_SIZE";
internal const string DecimalDigits = "DECIMAL_DIGITS";
internal const string BufferLength = "BUFFER_LENGTH";
/// <summary>
/// The GetColumns metadata call returns a result with different column names
/// on different data sources. Populate this structure with the actual column names.
/// </summary>
internal struct ColumnsMetadataColumnNames
{
public string TableCatalog { get; internal set; }
public string TableSchema { get; internal set; }
public string TableName { get; internal set; }
public string ColumnName { get; internal set; }
public string DataType { get; internal set; }
public string TypeName { get; internal set; }
public string Nullable { get; internal set; }
public string ColumnDef { get; internal set; }
public string OrdinalPosition { get; internal set; }
public string IsNullable { get; internal set; }
public string IsAutoIncrement { get; internal set; }
public string ColumnSize { get; set; }
public string DecimalDigits { get; set; }
}
/// <summary>
/// The data type definitions based on the <see href="https://docs.oracle.com/en%2Fjava%2Fjavase%2F21%2Fdocs%2Fapi%2F%2F/java.sql/java/sql/Types.html">JDBC Types</see> constants.
/// </summary>
/// <remarks>
/// This enumeration can be used to determine the drivers specific data types that are contained in fields <c>xdbc_data_type</c> and <c>xdbc_sql_data_type</c>
/// in the column metadata <see cref="StandardSchemas.ColumnSchema"/>. This column metadata is returned as a result of a call to
/// <see cref="AdbcConnection.GetObjects(GetObjectsDepth, string?, string?, string?, IReadOnlyList{string}?, string?)"/>
/// when <c>depth</c> is set to <see cref="AdbcConnection.GetObjectsDepth.All"/>.
/// </remarks>
internal enum ColumnTypeId
{
// Please keep up-to-date.
// Copied from https://docs.oracle.com/en%2Fjava%2Fjavase%2F21%2Fdocs%2Fapi%2F%2F/constant-values.html#java.sql.Types.ARRAY
/// <summary>
/// Identifies the generic SQL type ARRAY
/// </summary>
ARRAY = 2003,
/// <summary>
/// Identifies the generic SQL type BIGINT
/// </summary>
BIGINT = -5,
/// <summary>
/// Identifies the generic SQL type BINARY
/// </summary>
BINARY = -2,
/// <summary>
/// Identifies the generic SQL type BOOLEAN
/// </summary>
BOOLEAN = 16,
/// <summary>
/// Identifies the generic SQL type CHAR
/// </summary>
CHAR = 1,
/// <summary>
/// Identifies the generic SQL type DATE
/// </summary>
DATE = 91,
/// <summary>
/// Identifies the generic SQL type DECIMAL
/// </summary>
DECIMAL = 3,
/// <summary>
/// Identifies the generic SQL type DOUBLE
/// </summary>
DOUBLE = 8,
/// <summary>
/// Identifies the generic SQL type FLOAT
/// </summary>
FLOAT = 6,
/// <summary>
/// Identifies the generic SQL type INTEGER
/// </summary>
INTEGER = 4,
/// <summary>
/// Identifies the generic SQL type JAVA_OBJECT (MAP)
/// </summary>
JAVA_OBJECT = 2000,
/// <summary>
/// identifies the generic SQL type LONGNVARCHAR
/// </summary>
LONGNVARCHAR = -16,
/// <summary>
/// identifies the generic SQL type LONGVARBINARY
/// </summary>
LONGVARBINARY = -4,
/// <summary>
/// identifies the generic SQL type LONGVARCHAR
/// </summary>
LONGVARCHAR = -1,
/// <summary>
/// identifies the generic SQL type NCHAR
/// </summary>
NCHAR = -15,
/// <summary>
/// identifies the generic SQL type NULL
/// </summary>
NULL = 0,
/// <summary>
/// identifies the generic SQL type NUMERIC
/// </summary>
NUMERIC = 2,
/// <summary>
/// identifies the generic SQL type NVARCHAR
/// </summary>
NVARCHAR = -9,
/// <summary>
/// identifies the generic SQL type REAL
/// </summary>
REAL = 7,
/// <summary>
/// Identifies the generic SQL type SMALLINT
/// </summary>
SMALLINT = 5,
/// <summary>
/// Identifies the generic SQL type STRUCT
/// </summary>
STRUCT = 2002,
/// <summary>
/// Identifies the generic SQL type TIMESTAMP
/// </summary>
TIMESTAMP = 93,
/// <summary>
/// Identifies the generic SQL type TINYINT
/// </summary>
TINYINT = -6,
/// <summary>
/// Identifies the generic SQL type VARBINARY
/// </summary>
VARBINARY = -3,
/// <summary>
/// Identifies the generic SQL type VARCHAR
/// </summary>
VARCHAR = 12,
// ======================
// Unused/unsupported
// ======================
/// <summary>
/// Identifies the generic SQL type BIT
/// </summary>
BIT = -7,
/// <summary>
/// Identifies the generic SQL type BLOB
/// </summary>
BLOB = 2004,
/// <summary>
/// Identifies the generic SQL type CLOB
/// </summary>
CLOB = 2005,
/// <summary>
/// Identifies the generic SQL type DATALINK
/// </summary>
DATALINK = 70,
/// <summary>
/// Identifies the generic SQL type DISTINCT
/// </summary>
DISTINCT = 2001,
/// <summary>
/// identifies the generic SQL type NCLOB
/// </summary>
NCLOB = 2011,
/// <summary>
/// Indicates that the SQL type is database-specific and gets mapped to a Java object
/// </summary>
OTHER = 1111,
/// <summary>
/// Identifies the generic SQL type REF CURSOR
/// </summary>
REF_CURSOR = 2012,
/// <summary>
/// Identifies the generic SQL type REF
/// </summary>
REF = 2006,
/// <summary>
/// Identifies the generic SQL type ROWID
/// </summary>
ROWID = -8,
/// <summary>
/// Identifies the generic SQL type XML
/// </summary>
SQLXML = 2009,
/// <summary>
/// Identifies the generic SQL type TIME
/// </summary>
TIME = 92,
/// <summary>
/// Identifies the generic SQL type TIME WITH TIMEZONE
/// </summary>
TIME_WITH_TIMEZONE = 2013,
/// <summary>
/// Identifies the generic SQL type TIMESTAMP WITH TIMEZONE
/// </summary>
TIMESTAMP_WITH_TIMEZONE = 2014,
}
internal HiveServer2Connection(IReadOnlyDictionary<string, string> properties)
{
Properties = properties;
// Note: "LazyThreadSafetyMode.PublicationOnly" is thread-safe initialization where
// the first successful thread sets the value. If an exception is thrown, initialization
// will retry until it successfully returns a value without an exception.
// https://learn.microsoft.com/en-us/dotnet/framework/performance/lazy-initialization#exceptions-in-lazy-objects
_vendorVersion = new Lazy<string>(() => GetInfoTypeStringValue(TGetInfoType.CLI_DBMS_VER), LazyThreadSafetyMode.PublicationOnly);
_vendorName = new Lazy<string>(() => GetInfoTypeStringValue(TGetInfoType.CLI_DBMS_NAME), LazyThreadSafetyMode.PublicationOnly);
if (properties.TryGetValue(ApacheParameters.QueryTimeoutSeconds, out string? queryTimeoutSecondsSettingValue))
{
if (ApacheUtility.QueryTimeoutIsValid(ApacheParameters.QueryTimeoutSeconds, queryTimeoutSecondsSettingValue, out int queryTimeoutSeconds))
{
QueryTimeoutSeconds = queryTimeoutSeconds;
}
}
}
internal TCLIService.Client Client
{
get { return _client ?? throw new InvalidOperationException("connection not open"); }
}
internal string VendorVersion => _vendorVersion.Value;
internal string VendorName => _vendorName.Value;
protected internal int QueryTimeoutSeconds { get; set; } = ApacheUtility.QueryTimeoutSecondsDefault;
internal IReadOnlyDictionary<string, string> Properties { get; }
internal async Task OpenAsync()
{
CancellationToken cancellationToken = ApacheUtility.GetCancellationToken(ConnectTimeoutMilliseconds, ApacheUtility.TimeUnit.Milliseconds);
try
{
TTransport transport = CreateTransport();
TProtocol protocol = await CreateProtocolAsync(transport, cancellationToken);
_transport = protocol.Transport;
_client = new TCLIService.Client(protocol);
TOpenSessionReq request = CreateSessionRequest();
TOpenSessionResp? session = await Client.OpenSession(request, cancellationToken);
// Explicitly check the session status
if (session == null)
{
throw new HiveServer2Exception("Unable to open session. Unknown error.");
}
else if (session.Status.StatusCode != TStatusCode.SUCCESS_STATUS)
{
throw new HiveServer2Exception(session.Status.ErrorMessage)
.SetNativeError(session.Status.ErrorCode)
.SetSqlState(session.Status.SqlState);
}
SessionHandle = session.SessionHandle;
}
catch (Exception ex) when (ExceptionHelper.IsOperationCanceledOrCancellationRequested(ex, cancellationToken))
{
throw new TimeoutException("The operation timed out while attempting to open a session. Please try increasing connect timeout.", ex);
}
catch (Exception ex) when (ex is not HiveServer2Exception)
{
// Handle other exceptions if necessary
throw new HiveServer2Exception($"An unexpected error occurred while opening the session. '{ex.Message}'", ex);
}
}
internal TSessionHandle? SessionHandle { get; private set; }
protected internal DataTypeConversion DataTypeConversion { get; set; } = DataTypeConversion.None;
protected internal TlsProperties TlsOptions { get; set; } = new TlsProperties();
protected internal int ConnectTimeoutMilliseconds { get; set; } = ConnectTimeoutMillisecondsDefault;
protected abstract TTransport CreateTransport();
protected abstract Task<TProtocol> CreateProtocolAsync(TTransport transport, CancellationToken cancellationToken = default);
protected abstract TOpenSessionReq CreateSessionRequest();
internal abstract SchemaParser SchemaParser { get; }
internal abstract IArrowArrayStream NewReader<T>(T statement, Schema schema, TGetResultSetMetadataResp? metadataResp = null) where T : HiveServer2Statement;
public override IArrowArrayStream GetObjects(GetObjectsDepth depth, string? catalogPattern, string? dbSchemaPattern, string? tableNamePattern, IReadOnlyList<string>? tableTypes, string? columnNamePattern)
{
if (SessionHandle == null)
{
throw new InvalidOperationException("Invalid session");
}
Dictionary<string, Dictionary<string, Dictionary<string, TableInfo>>> catalogMap = new Dictionary<string, Dictionary<string, Dictionary<string, TableInfo>>>();
CancellationToken cancellationToken = ApacheUtility.GetCancellationToken(QueryTimeoutSeconds, ApacheUtility.TimeUnit.Seconds);
try
{
if (GetObjectsPatternsRequireLowerCase)
{
catalogPattern = catalogPattern?.ToLower();
dbSchemaPattern = dbSchemaPattern?.ToLower();
tableNamePattern = tableNamePattern?.ToLower();
columnNamePattern = columnNamePattern?.ToLower();
}
if (depth == GetObjectsDepth.All || depth >= GetObjectsDepth.Catalogs)
{
TGetCatalogsReq getCatalogsReq = new TGetCatalogsReq(SessionHandle);
if (AreResultsAvailableDirectly())
{
SetDirectResults(getCatalogsReq);
}
TGetCatalogsResp getCatalogsResp = Client.GetCatalogs(getCatalogsReq, cancellationToken).Result;
if (getCatalogsResp.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new Exception(getCatalogsResp.Status.ErrorMessage);
}
var catalogsMetadata = GetResultSetMetadataAsync(getCatalogsResp, cancellationToken).Result;
IReadOnlyDictionary<string, int> columnMap = GetColumnIndexMap(catalogsMetadata.Schema.Columns);
string catalogRegexp = PatternToRegEx(catalogPattern);
TRowSet rowSet = GetRowSetAsync(getCatalogsResp, cancellationToken).Result;
IReadOnlyList<string> list = rowSet.Columns[columnMap[TableCat]].StringVal.Values;
for (int i = 0; i < list.Count; i++)
{
string col = list[i];
string catalog = col;
if (Regex.IsMatch(catalog, catalogRegexp, RegexOptions.IgnoreCase))
{
catalogMap.Add(catalog, new Dictionary<string, Dictionary<string, TableInfo>>());
}
}
// Handle the case where server does not support 'catalog' in the namespace.
if (list.Count == 0 && string.IsNullOrEmpty(catalogPattern))
{
catalogMap.Add(string.Empty, []);
}
}
if (depth == GetObjectsDepth.All || depth >= GetObjectsDepth.DbSchemas)
{
TGetSchemasReq getSchemasReq = new TGetSchemasReq(SessionHandle);
getSchemasReq.CatalogName = catalogPattern;
getSchemasReq.SchemaName = dbSchemaPattern;
if (AreResultsAvailableDirectly())
{
SetDirectResults(getSchemasReq);
}
TGetSchemasResp getSchemasResp = Client.GetSchemas(getSchemasReq, cancellationToken).Result;
if (getSchemasResp.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new Exception(getSchemasResp.Status.ErrorMessage);
}
TGetResultSetMetadataResp schemaMetadata = GetResultSetMetadataAsync(getSchemasResp, cancellationToken).Result;
IReadOnlyDictionary<string, int> columnMap = GetColumnIndexMap(schemaMetadata.Schema.Columns);
TRowSet rowSet = GetRowSetAsync(getSchemasResp, cancellationToken).Result;
IReadOnlyList<string> catalogList = rowSet.Columns[columnMap[TableCatalog]].StringVal.Values;
IReadOnlyList<string> schemaList = rowSet.Columns[columnMap[TableSchem]].StringVal.Values;
for (int i = 0; i < catalogList.Count; i++)
{
string catalog = catalogList[i];
string schemaDb = schemaList[i];
// It seems Spark sometimes returns empty string for catalog on some schema (temporary tables).
catalogMap.GetValueOrDefault(catalog)?.Add(schemaDb, new Dictionary<string, TableInfo>());
}
}
if (depth == GetObjectsDepth.All || depth >= GetObjectsDepth.Tables)
{
TGetTablesReq getTablesReq = new TGetTablesReq(SessionHandle);
getTablesReq.CatalogName = catalogPattern;
getTablesReq.SchemaName = dbSchemaPattern;
getTablesReq.TableName = tableNamePattern;
if (AreResultsAvailableDirectly())
{
SetDirectResults(getTablesReq);
}
TGetTablesResp getTablesResp = Client.GetTables(getTablesReq, cancellationToken).Result;
if (getTablesResp.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new Exception(getTablesResp.Status.ErrorMessage);
}
TGetResultSetMetadataResp tableMetadata = GetResultSetMetadataAsync(getTablesResp, cancellationToken).Result;
IReadOnlyDictionary<string, int> columnMap = GetColumnIndexMap(tableMetadata.Schema.Columns);
TRowSet rowSet = GetRowSetAsync(getTablesResp, cancellationToken).Result;
IReadOnlyList<string> catalogList = rowSet.Columns[columnMap[TableCat]].StringVal.Values;
IReadOnlyList<string> schemaList = rowSet.Columns[columnMap[TableSchem]].StringVal.Values;
IReadOnlyList<string> tableList = rowSet.Columns[columnMap[TableName]].StringVal.Values;
IReadOnlyList<string> tableTypeList = rowSet.Columns[columnMap[TableType]].StringVal.Values;
for (int i = 0; i < catalogList.Count; i++)
{
string catalog = catalogList[i];
string schemaDb = schemaList[i];
string tableName = tableList[i];
string tableType = tableTypeList[i];
TableInfo tableInfo = new(tableType);
catalogMap.GetValueOrDefault(catalog)?.GetValueOrDefault(schemaDb)?.Add(tableName, tableInfo);
}
}
if (depth == GetObjectsDepth.All)
{
TGetColumnsReq columnsReq = new TGetColumnsReq(SessionHandle);
columnsReq.CatalogName = catalogPattern;
columnsReq.SchemaName = dbSchemaPattern;
columnsReq.TableName = tableNamePattern;
if (AreResultsAvailableDirectly())
{
SetDirectResults(columnsReq);
}
if (!string.IsNullOrEmpty(columnNamePattern))
columnsReq.ColumnName = columnNamePattern;
var columnsResponse = Client.GetColumns(columnsReq, cancellationToken).Result;
if (columnsResponse.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new Exception(columnsResponse.Status.ErrorMessage);
}
TGetResultSetMetadataResp columnsMetadata = GetResultSetMetadataAsync(columnsResponse, cancellationToken).Result;
IReadOnlyDictionary<string, int> columnMap = GetColumnIndexMap(columnsMetadata.Schema.Columns);
TRowSet rowSet = GetRowSetAsync(columnsResponse, cancellationToken).Result;
ColumnsMetadataColumnNames columnNames = GetColumnsMetadataColumnNames();
IReadOnlyList<string> catalogList = rowSet.Columns[columnMap[columnNames.TableCatalog]].StringVal.Values;
IReadOnlyList<string> schemaList = rowSet.Columns[columnMap[columnNames.TableSchema]].StringVal.Values;
IReadOnlyList<string> tableList = rowSet.Columns[columnMap[columnNames.TableName]].StringVal.Values;
IReadOnlyList<string> columnNameList = rowSet.Columns[columnMap[columnNames.ColumnName]].StringVal.Values;
ReadOnlySpan<int> columnTypeList = rowSet.Columns[columnMap[columnNames.DataType]].I32Val.Values.Values;
IReadOnlyList<string> typeNameList = rowSet.Columns[columnMap[columnNames.TypeName]].StringVal.Values;
ReadOnlySpan<int> nullableList = rowSet.Columns[columnMap[columnNames.Nullable]].I32Val.Values.Values;
IReadOnlyList<string> columnDefaultList = rowSet.Columns[columnMap[columnNames.ColumnDef]].StringVal.Values;
ReadOnlySpan<int> ordinalPosList = rowSet.Columns[columnMap[columnNames.OrdinalPosition]].I32Val.Values.Values;
IReadOnlyList<string> isNullableList = rowSet.Columns[columnMap[columnNames.IsNullable]].StringVal.Values;
IReadOnlyList<string> isAutoIncrementList = rowSet.Columns[columnMap[columnNames.IsAutoIncrement]].StringVal.Values;
ReadOnlySpan<int> columnSizeList = rowSet.Columns[columnMap[columnNames.ColumnSize]].I32Val.Values.Values;
ReadOnlySpan<int> decimalDigitsList = rowSet.Columns[columnMap[columnNames.DecimalDigits]].I32Val.Values.Values;
for (int i = 0; i < catalogList.Count; i++)
{
// For systems that don't support 'catalog' in the namespace
string catalog = catalogList[i] ?? string.Empty;
string schemaDb = schemaList[i];
string tableName = tableList[i];
string columnName = columnNameList[i];
short colType = (short)columnTypeList[i];
string typeName = typeNameList[i];
short nullable = (short)nullableList[i];
string? isAutoIncrementString = isAutoIncrementList[i];
bool isAutoIncrement = (!string.IsNullOrEmpty(isAutoIncrementString) && (isAutoIncrementString.Equals("YES", StringComparison.InvariantCultureIgnoreCase) || isAutoIncrementString.Equals("TRUE", StringComparison.InvariantCultureIgnoreCase)));
string isNullable = isNullableList[i] ?? "YES";
string columnDefault = columnDefaultList[i] ?? "";
// Spark/Databricks reports ordinal index zero-indexed, instead of one-indexed
int ordinalPos = ordinalPosList[i] + PositionRequiredOffset;
int columnSize = columnSizeList[i];
int decimalDigits = decimalDigitsList[i];
TableInfo? tableInfo = catalogMap.GetValueOrDefault(catalog)?.GetValueOrDefault(schemaDb)?.GetValueOrDefault(tableName);
tableInfo?.ColumnName.Add(columnName);
tableInfo?.ColType.Add(colType);
tableInfo?.Nullable.Add(nullable);
tableInfo?.IsAutoIncrement.Add(isAutoIncrement);
tableInfo?.IsNullable.Add(isNullable);
tableInfo?.ColumnDefault.Add(columnDefault);
tableInfo?.OrdinalPosition.Add(ordinalPos);
SetPrecisionScaleAndTypeName(colType, typeName, tableInfo, columnSize, decimalDigits);
}
}
StringArray.Builder catalogNameBuilder = new StringArray.Builder();
List<IArrowArray?> catalogDbSchemasValues = new List<IArrowArray?>();
foreach (KeyValuePair<string, Dictionary<string, Dictionary<string, TableInfo>>> catalogEntry in catalogMap)
{
catalogNameBuilder.Append(catalogEntry.Key);
if (depth == GetObjectsDepth.Catalogs)
{
catalogDbSchemasValues.Add(null);
}
else
{
catalogDbSchemasValues.Add(GetDbSchemas(
depth, catalogEntry.Value));
}
}
Schema schema = StandardSchemas.GetObjectsSchema;
IReadOnlyList<IArrowArray> dataArrays = schema.Validate(
new List<IArrowArray>
{
catalogNameBuilder.Build(),
catalogDbSchemasValues.BuildListArrayForType(new StructType(StandardSchemas.DbSchemaSchema)),
});
return new HiveInfoArrowStream(schema, dataArrays);
}
catch (Exception ex) when (ExceptionHelper.IsOperationCanceledOrCancellationRequested(ex, cancellationToken))
{
throw new TimeoutException("The metadata query execution timed out. Consider increasing the query timeout value.", ex);
}
catch (Exception ex) when (ex is not HiveServer2Exception)
{
throw new HiveServer2Exception($"An unexpected error occurred while running metadata query. '{ex.Message}'", ex);
}
}
public override IArrowArrayStream GetTableTypes()
{
TGetTableTypesReq req = new()
{
SessionHandle = SessionHandle ?? throw new InvalidOperationException("session not created"),
};
if (AreResultsAvailableDirectly())
{
SetDirectResults(req);
}
CancellationToken cancellationToken = ApacheUtility.GetCancellationToken(QueryTimeoutSeconds, ApacheUtility.TimeUnit.Seconds);
try
{
TGetTableTypesResp resp = Client.GetTableTypes(req, cancellationToken).Result;
if (resp.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new HiveServer2Exception(resp.Status.ErrorMessage)
.SetNativeError(resp.Status.ErrorCode)
.SetSqlState(resp.Status.SqlState);
}
TRowSet rowSet = GetRowSetAsync(resp, cancellationToken).Result;
StringArray tableTypes = rowSet.Columns[0].StringVal.Values;
HashSet<string> distinctTableTypes = new HashSet<string>(tableTypes);
StringArray.Builder tableTypesBuilder = new StringArray.Builder();
tableTypesBuilder.AppendRange(distinctTableTypes);
IArrowArray[] dataArrays = new IArrowArray[]
{
tableTypesBuilder.Build()
};
return new HiveInfoArrowStream(StandardSchemas.TableTypesSchema, dataArrays);
}
catch (Exception ex) when (ExceptionHelper.IsOperationCanceledOrCancellationRequested(ex, cancellationToken))
{
throw new TimeoutException("The metadata query execution timed out. Consider increasing the query timeout value.", ex);
}
catch (Exception ex) when (ex is not HiveServer2Exception)
{
throw new HiveServer2Exception($"An unexpected error occurred while running metadata query. '{ex.Message}'", ex);
}
}
internal static async Task PollForResponseAsync(TOperationHandle operationHandle, TCLIService.IAsync client, int pollTimeMilliseconds, CancellationToken cancellationToken = default)
{
TGetOperationStatusResp? statusResponse = null;
do
{
if (statusResponse != null) { await Task.Delay(pollTimeMilliseconds, cancellationToken); }
TGetOperationStatusReq request = new(operationHandle);
statusResponse = await client.GetOperationStatus(request, cancellationToken);
} while (statusResponse.OperationState == TOperationState.PENDING_STATE || statusResponse.OperationState == TOperationState.RUNNING_STATE);
// Must be in the finished state to be valid. If not, typically a server error or timeout has occurred.
if (statusResponse.OperationState != TOperationState.FINISHED_STATE)
{
#pragma warning disable CS0618 // Type or member is obsolete
throw new HiveServer2Exception(statusResponse.ErrorMessage, AdbcStatusCode.InvalidState)
.SetSqlState(statusResponse.SqlState)
.SetNativeError(statusResponse.ErrorCode);
#pragma warning restore CS0618 // Type or member is obsolete
}
}
private string GetInfoTypeStringValue(TGetInfoType infoType)
{
TGetInfoReq req = new()
{
SessionHandle = SessionHandle ?? throw new InvalidOperationException("session not created"),
InfoType = infoType,
};
CancellationToken cancellationToken = ApacheUtility.GetCancellationToken(QueryTimeoutSeconds, ApacheUtility.TimeUnit.Seconds);
try
{
TGetInfoResp getInfoResp = Client.GetInfo(req, cancellationToken).Result;
if (getInfoResp.Status.StatusCode == TStatusCode.ERROR_STATUS)
{
throw new HiveServer2Exception(getInfoResp.Status.ErrorMessage)
.SetNativeError(getInfoResp.Status.ErrorCode)
.SetSqlState(getInfoResp.Status.SqlState);
}
return getInfoResp.InfoValue.StringValue;
}
catch (Exception ex) when (ExceptionHelper.IsOperationCanceledOrCancellationRequested(ex, cancellationToken))
{
throw new TimeoutException("The metadata query execution timed out. Consider increasing the query timeout value.", ex);
}
catch (Exception ex) when (ex is not HiveServer2Exception)
{
throw new HiveServer2Exception($"An unexpected error occurred while running metadata query. '{ex.Message}'", ex);
}
}
public override void Dispose()
{
if (_client != null && SessionHandle != null)
{
CancellationToken cancellationToken = ApacheUtility.GetCancellationToken(QueryTimeoutSeconds, ApacheUtility.TimeUnit.Seconds);
TCloseSessionReq r6 = new(SessionHandle);
_client.CloseSession(r6, cancellationToken).Wait();
_transport?.Close();
_client.Dispose();
_transport = null;
_client = null;
}
}
internal static async Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TOperationHandle operationHandle, TCLIService.IAsync client, CancellationToken cancellationToken = default)
{
TGetResultSetMetadataReq request = new(operationHandle);
TGetResultSetMetadataResp response = await client.GetResultSetMetadata(request, cancellationToken);
return response;
}
/// <summary>
/// Gets the data-source specific columns names for the GetColumns metadata result.
/// </summary>
/// <returns></returns>
protected abstract ColumnsMetadataColumnNames GetColumnsMetadataColumnNames();
/// <summary>
/// Gets the default product version
/// </summary>
/// <returns></returns>
protected abstract string GetProductVersionDefault();
/// <summary>
/// Gets the current product version.
/// </summary>
/// <returns></returns>
protected internal string GetProductVersion()
{
FileVersionInfo fileVersionInfo = FileVersionInfo.GetVersionInfo(Assembly.GetExecutingAssembly().Location);
return fileVersionInfo.ProductVersion ?? GetProductVersionDefault();
}
protected static Uri GetBaseAddress(string? uri, string? hostName, string? path, string? port, string hostOptionName, bool isTlsEnabled)
{
// Uri property takes precedent.
if (!string.IsNullOrWhiteSpace(uri))
{
if (!string.IsNullOrWhiteSpace(hostName))
{
throw new ArgumentOutOfRangeException(
AdbcOptions.Uri,
hostOptionName,
$"Conflicting server arguments. Please provide only one of the following options: '{Adbc.AdbcOptions.Uri}' or '{hostOptionName}'.");
}
var uriValue = new Uri(uri);
if (uriValue.Scheme != Uri.UriSchemeHttp && uriValue.Scheme != Uri.UriSchemeHttps)
throw new ArgumentOutOfRangeException(
AdbcOptions.Uri,
uri,
$"Unsupported scheme '{uriValue.Scheme}'");
return uriValue;
}
bool isPortSet = !string.IsNullOrEmpty(port);
bool isValidPortNumber = int.TryParse(port, out int portNumber) && portNumber > 0;
string uriScheme = isTlsEnabled ? Uri.UriSchemeHttps : Uri.UriSchemeHttp;
int uriPort;
if (!isPortSet)
uriPort = -1;
else if (isValidPortNumber)
uriPort = portNumber;
else
throw new ArgumentOutOfRangeException(nameof(port), portNumber, $"Port number is not in a valid range.");
Uri baseAddress = new UriBuilder(uriScheme, hostName, uriPort, path).Uri;
return baseAddress;
}
internal IReadOnlyDictionary<string, int> GetColumnIndexMap(List<TColumnDesc> columns) => columns
.Select(t => new { Index = t.Position - ColumnMapIndexOffset, t.ColumnName })
.ToDictionary(t => t.ColumnName, t => t.Index);
protected abstract int ColumnMapIndexOffset { get; }
protected abstract Task<TRowSet> GetRowSetAsync(TGetTableTypesResp response, CancellationToken cancellationToken = default);
protected abstract Task<TRowSet> GetRowSetAsync(TGetColumnsResp response, CancellationToken cancellationToken = default);
protected abstract Task<TRowSet> GetRowSetAsync(TGetTablesResp response, CancellationToken cancellationToken = default);
protected abstract Task<TRowSet> GetRowSetAsync(TGetCatalogsResp getCatalogsResp, CancellationToken cancellationToken = default);
protected abstract Task<TRowSet> GetRowSetAsync(TGetSchemasResp getSchemasResp, CancellationToken cancellationToken = default);
protected internal abstract Task<TRowSet> GetRowSetAsync(TGetPrimaryKeysResp response, CancellationToken cancellationToken = default);
protected abstract Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TGetSchemasResp response, CancellationToken cancellationToken = default);
protected abstract Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TGetCatalogsResp response, CancellationToken cancellationToken = default);
protected abstract Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TGetColumnsResp response, CancellationToken cancellationToken = default);
protected abstract Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TGetTablesResp response, CancellationToken cancellationToken = default);
protected internal abstract Task<TGetResultSetMetadataResp> GetResultSetMetadataAsync(TGetPrimaryKeysResp response, CancellationToken cancellationToken = default);
protected internal virtual bool AreResultsAvailableDirectly() => false;
protected virtual void SetDirectResults(TGetColumnsReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetCatalogsReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetSchemasReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetTablesReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetTableTypesReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetPrimaryKeysReq request) => throw new System.NotImplementedException();
protected virtual void SetDirectResults(TGetCrossReferenceReq request) => throw new System.NotImplementedException();
protected internal abstract int PositionRequiredOffset { get; }
protected abstract string InfoDriverName { get; }
protected abstract string InfoDriverArrowVersion { get; }
protected abstract string ProductVersion { get; }
protected abstract bool GetObjectsPatternsRequireLowerCase { get; }
protected abstract bool IsColumnSizeValidForDecimal { get; }
private static string PatternToRegEx(string? pattern)
{
if (pattern == null)
return ".*";
StringBuilder builder = new StringBuilder("(?i)^");
string convertedPattern = pattern.Replace("_", ".").Replace("%", ".*");
builder.Append(convertedPattern);
builder.Append('$');
return builder.ToString();
}
private static StructArray GetDbSchemas(
GetObjectsDepth depth,
Dictionary<string, Dictionary<string, TableInfo>> schemaMap)
{
StringArray.Builder dbSchemaNameBuilder = new StringArray.Builder();
List<IArrowArray?> dbSchemaTablesValues = new List<IArrowArray?>();
ArrowBuffer.BitmapBuilder nullBitmapBuffer = new ArrowBuffer.BitmapBuilder();
int length = 0;
foreach (KeyValuePair<string, Dictionary<string, TableInfo>> schemaEntry in schemaMap)
{
dbSchemaNameBuilder.Append(schemaEntry.Key);
length++;
nullBitmapBuffer.Append(true);
if (depth == GetObjectsDepth.DbSchemas)
{
dbSchemaTablesValues.Add(null);
}
else
{
dbSchemaTablesValues.Add(GetTableSchemas(
depth, schemaEntry.Value));
}
}
IReadOnlyList<Field> schema = StandardSchemas.DbSchemaSchema;
IReadOnlyList<IArrowArray> dataArrays = schema.Validate(
new List<IArrowArray>
{
dbSchemaNameBuilder.Build(),
dbSchemaTablesValues.BuildListArrayForType(new StructType(StandardSchemas.TableSchema)),
});
return new StructArray(
new StructType(schema),
length,
dataArrays,
nullBitmapBuffer.Build());
}
private static StructArray GetTableSchemas(
GetObjectsDepth depth,
Dictionary<string, TableInfo> tableMap)
{
StringArray.Builder tableNameBuilder = new StringArray.Builder();
StringArray.Builder tableTypeBuilder = new StringArray.Builder();
List<IArrowArray?> tableColumnsValues = new List<IArrowArray?>();
List<IArrowArray?> tableConstraintsValues = new List<IArrowArray?>();
ArrowBuffer.BitmapBuilder nullBitmapBuffer = new ArrowBuffer.BitmapBuilder();
int length = 0;
foreach (KeyValuePair<string, TableInfo> tableEntry in tableMap)
{
tableNameBuilder.Append(tableEntry.Key);
tableTypeBuilder.Append(tableEntry.Value.Type);
nullBitmapBuffer.Append(true);
length++;
tableConstraintsValues.Add(null);
if (depth == GetObjectsDepth.Tables)
{
tableColumnsValues.Add(null);
}
else
{
tableColumnsValues.Add(GetColumnSchema(tableEntry.Value));
}
}
IReadOnlyList<Field> schema = StandardSchemas.TableSchema;
IReadOnlyList<IArrowArray> dataArrays = schema.Validate(
new List<IArrowArray>
{
tableNameBuilder.Build(),
tableTypeBuilder.Build(),
tableColumnsValues.BuildListArrayForType(new StructType(StandardSchemas.ColumnSchema)),
tableConstraintsValues.BuildListArrayForType( new StructType(StandardSchemas.ConstraintSchema))
});
return new StructArray(
new StructType(schema),
length,
dataArrays,
nullBitmapBuffer.Build());
}
internal async Task<TGetCatalogsResp> GetCatalogsAsync(CancellationToken cancellationToken)
{
if (SessionHandle == null)
{
throw new InvalidOperationException("Invalid session");
}
TGetCatalogsReq req = new TGetCatalogsReq(SessionHandle);
if (AreResultsAvailableDirectly())
{
SetDirectResults(req);
}
TGetCatalogsResp resp = await Client.GetCatalogs(req, cancellationToken);
if (resp.Status.StatusCode != TStatusCode.SUCCESS_STATUS)
{
throw new HiveServer2Exception(resp.Status.ErrorMessage)
.SetNativeError(resp.Status.ErrorCode)
.SetSqlState(resp.Status.SqlState);
}
return resp;
}
internal async Task<TGetSchemasResp> GetSchemasAsync(
string? catalogName,
string? schemaName,
CancellationToken cancellationToken)
{
if (SessionHandle == null)
{
throw new InvalidOperationException("Invalid session");
}
TGetSchemasReq req = new(SessionHandle);
if (AreResultsAvailableDirectly())
{
SetDirectResults(req);
}
if (catalogName != null)
{
req.CatalogName = catalogName;
}
if (schemaName != null)
{
req.SchemaName = schemaName;
}
TGetSchemasResp resp = await Client.GetSchemas(req, cancellationToken);
if (resp.Status.StatusCode != TStatusCode.SUCCESS_STATUS)
{
throw new HiveServer2Exception(resp.Status.ErrorMessage)
.SetNativeError(resp.Status.ErrorCode)
.SetSqlState(resp.Status.SqlState);
}
return resp;
}
internal async Task<TGetTablesResp> GetTablesAsync(
string? catalogName,
string? schemaName,
string? tableName,
List<string>? tableTypes,
CancellationToken cancellationToken)
{
if (SessionHandle == null)
{
throw new InvalidOperationException("Invalid session");
}
TGetTablesReq req = new(SessionHandle);
if (AreResultsAvailableDirectly())
{
SetDirectResults(req);
}
if (catalogName != null)
{
req.CatalogName = catalogName;
}
if (schemaName != null)
{
req.SchemaName = schemaName;