/
EnhancedBigtableStub.java
1117 lines (992 loc) · 51.9 KB
/
EnhancedBigtableStub.java
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
/*
* Copyright 2018 Google LLC
*
* Licensed 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
*
* https://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.
*/
package com.google.cloud.bigtable.data.v2.stub;
import com.google.api.core.BetaApi;
import com.google.api.core.InternalApi;
import com.google.api.gax.batching.Batcher;
import com.google.api.gax.batching.BatcherImpl;
import com.google.api.gax.batching.FlowController;
import com.google.api.gax.core.BackgroundResource;
import com.google.api.gax.core.CredentialsProvider;
import com.google.api.gax.core.FixedCredentialsProvider;
import com.google.api.gax.grpc.GaxGrpcProperties;
import com.google.api.gax.grpc.GrpcCallContext;
import com.google.api.gax.grpc.GrpcCallSettings;
import com.google.api.gax.grpc.GrpcRawCallableFactory;
import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
import com.google.api.gax.retrying.ExponentialRetryAlgorithm;
import com.google.api.gax.retrying.RetryAlgorithm;
import com.google.api.gax.retrying.RetryingExecutorWithContext;
import com.google.api.gax.retrying.ScheduledRetryingExecutor;
import com.google.api.gax.rpc.Callables;
import com.google.api.gax.rpc.ClientContext;
import com.google.api.gax.rpc.RequestParamsExtractor;
import com.google.api.gax.rpc.ServerStreamingCallSettings;
import com.google.api.gax.rpc.ServerStreamingCallable;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.api.gax.tracing.OpencensusTracerFactory;
import com.google.api.gax.tracing.SpanName;
import com.google.api.gax.tracing.TracedServerStreamingCallable;
import com.google.api.gax.tracing.TracedUnaryCallable;
import com.google.auth.Credentials;
import com.google.auth.oauth2.ServiceAccountJwtAccessCredentials;
import com.google.bigtable.v2.BigtableGrpc;
import com.google.bigtable.v2.CheckAndMutateRowRequest;
import com.google.bigtable.v2.CheckAndMutateRowResponse;
import com.google.bigtable.v2.GenerateInitialChangeStreamPartitionsRequest;
import com.google.bigtable.v2.GenerateInitialChangeStreamPartitionsResponse;
import com.google.bigtable.v2.MutateRowRequest;
import com.google.bigtable.v2.MutateRowResponse;
import com.google.bigtable.v2.MutateRowsRequest;
import com.google.bigtable.v2.MutateRowsResponse;
import com.google.bigtable.v2.PingAndWarmRequest;
import com.google.bigtable.v2.PingAndWarmResponse;
import com.google.bigtable.v2.ReadChangeStreamRequest;
import com.google.bigtable.v2.ReadChangeStreamResponse;
import com.google.bigtable.v2.ReadModifyWriteRowRequest;
import com.google.bigtable.v2.ReadModifyWriteRowResponse;
import com.google.bigtable.v2.ReadRowsRequest;
import com.google.bigtable.v2.ReadRowsResponse;
import com.google.bigtable.v2.RowRange;
import com.google.bigtable.v2.SampleRowKeysRequest;
import com.google.bigtable.v2.SampleRowKeysResponse;
import com.google.cloud.bigtable.Version;
import com.google.cloud.bigtable.data.v2.internal.JwtCredentialsWithAudience;
import com.google.cloud.bigtable.data.v2.internal.RequestContext;
import com.google.cloud.bigtable.data.v2.models.BulkMutation;
import com.google.cloud.bigtable.data.v2.models.ChangeStreamMutation;
import com.google.cloud.bigtable.data.v2.models.ChangeStreamRecord;
import com.google.cloud.bigtable.data.v2.models.ChangeStreamRecordAdapter;
import com.google.cloud.bigtable.data.v2.models.ConditionalRowMutation;
import com.google.cloud.bigtable.data.v2.models.DefaultChangeStreamRecordAdapter;
import com.google.cloud.bigtable.data.v2.models.DefaultRowAdapter;
import com.google.cloud.bigtable.data.v2.models.KeyOffset;
import com.google.cloud.bigtable.data.v2.models.Query;
import com.google.cloud.bigtable.data.v2.models.Range.ByteStringRange;
import com.google.cloud.bigtable.data.v2.models.ReadChangeStreamQuery;
import com.google.cloud.bigtable.data.v2.models.ReadModifyWriteRow;
import com.google.cloud.bigtable.data.v2.models.Row;
import com.google.cloud.bigtable.data.v2.models.RowAdapter;
import com.google.cloud.bigtable.data.v2.models.RowMutation;
import com.google.cloud.bigtable.data.v2.models.RowMutationEntry;
import com.google.cloud.bigtable.data.v2.stub.changestream.ChangeStreamRecordMergingCallable;
import com.google.cloud.bigtable.data.v2.stub.changestream.GenerateInitialChangeStreamPartitionsUserCallable;
import com.google.cloud.bigtable.data.v2.stub.changestream.ReadChangeStreamResumptionStrategy;
import com.google.cloud.bigtable.data.v2.stub.changestream.ReadChangeStreamUserCallable;
import com.google.cloud.bigtable.data.v2.stub.metrics.BigtableTracerStreamingCallable;
import com.google.cloud.bigtable.data.v2.stub.metrics.BigtableTracerUnaryCallable;
import com.google.cloud.bigtable.data.v2.stub.metrics.BuiltinMetricsTracerFactory;
import com.google.cloud.bigtable.data.v2.stub.metrics.CompositeTracerFactory;
import com.google.cloud.bigtable.data.v2.stub.metrics.MetricsTracerFactory;
import com.google.cloud.bigtable.data.v2.stub.metrics.RpcMeasureConstants;
import com.google.cloud.bigtable.data.v2.stub.metrics.StatsHeadersServerStreamingCallable;
import com.google.cloud.bigtable.data.v2.stub.metrics.StatsHeadersUnaryCallable;
import com.google.cloud.bigtable.data.v2.stub.metrics.TracedBatcherUnaryCallable;
import com.google.cloud.bigtable.data.v2.stub.mutaterows.BulkMutateRowsUserFacingCallable;
import com.google.cloud.bigtable.data.v2.stub.mutaterows.MutateRowsBatchingDescriptor;
import com.google.cloud.bigtable.data.v2.stub.mutaterows.MutateRowsRetryingCallable;
import com.google.cloud.bigtable.data.v2.stub.readrows.FilterMarkerRowsCallable;
import com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsBatchingDescriptor;
import com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsFirstCallable;
import com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsResumptionStrategy;
import com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsRetryCompletedCallable;
import com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsUserCallable;
import com.google.cloud.bigtable.data.v2.stub.readrows.RowMergingCallable;
import com.google.cloud.bigtable.gaxx.retrying.ApiResultRetryAlgorithm;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.protobuf.ByteString;
import io.opencensus.stats.Stats;
import io.opencensus.stats.StatsRecorder;
import io.opencensus.tags.TagKey;
import io.opencensus.tags.TagValue;
import io.opencensus.tags.Tagger;
import io.opencensus.tags.Tags;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
/**
* The core client that converts method calls to RPCs.
*
* <p>This class consists of a set of Callable chains that represent RPC methods. There is a chain
* for each RPC method. Each chain starts with a transformation that takes a protobuf wrapper and
* terminates in a Callable that a gax gRPC callable. This class is meant to be a semantically
* complete facade for the Bigtable data API. However it is not meant to be consumed directly,
* please use {@link com.google.cloud.bigtable.data.v2.BigtableDataClient}.
*
* <p>This class is considered an internal implementation detail and not meant to be used by
* applications.
*/
@InternalApi
public class EnhancedBigtableStub implements AutoCloseable {
private static final String CLIENT_NAME = "Bigtable";
private static final long FLOW_CONTROL_ADJUSTING_INTERVAL_MS = TimeUnit.SECONDS.toMillis(20);
private final EnhancedBigtableStubSettings settings;
private final ClientContext clientContext;
private final RequestContext requestContext;
private final FlowController bulkMutationFlowController;
private final DynamicFlowControlStats bulkMutationDynamicFlowControlStats;
private final ServerStreamingCallable<Query, Row> readRowsCallable;
private final UnaryCallable<Query, Row> readRowCallable;
private final UnaryCallable<Query, List<Row>> bulkReadRowsCallable;
private final UnaryCallable<String, List<KeyOffset>> sampleRowKeysCallable;
private final UnaryCallable<RowMutation, Void> mutateRowCallable;
private final UnaryCallable<BulkMutation, Void> bulkMutateRowsCallable;
private final UnaryCallable<ConditionalRowMutation, Boolean> checkAndMutateRowCallable;
private final UnaryCallable<ReadModifyWriteRow, Row> readModifyWriteRowCallable;
private final UnaryCallable<PingAndWarmRequest, PingAndWarmResponse> pingAndWarmCallable;
private final ServerStreamingCallable<String, ByteStringRange>
generateInitialChangeStreamPartitionsCallable;
private final ServerStreamingCallable<ReadChangeStreamQuery, ChangeStreamRecord>
readChangeStreamCallable;
public static EnhancedBigtableStub create(EnhancedBigtableStubSettings settings)
throws IOException {
settings = finalizeSettings(settings, Tags.getTagger(), Stats.getStatsRecorder());
return new EnhancedBigtableStub(settings, ClientContext.create(settings));
}
public static EnhancedBigtableStubSettings finalizeSettings(
EnhancedBigtableStubSettings settings, Tagger tagger, StatsRecorder stats)
throws IOException {
EnhancedBigtableStubSettings.Builder builder = settings.toBuilder();
// TODO: this implementation is on the cusp of unwieldy, if we end up adding more features
// consider splitting it up by feature.
// workaround JWT audience issues
patchCredentials(builder);
// Inject channel priming
if (settings.isRefreshingChannel()) {
// Fix the credentials so that they can be shared
Credentials credentials = null;
if (builder.getCredentialsProvider() != null) {
credentials = builder.getCredentialsProvider().getCredentials();
}
builder.setCredentialsProvider(FixedCredentialsProvider.create(credentials));
// Inject the primer
InstantiatingGrpcChannelProvider transportProvider =
(InstantiatingGrpcChannelProvider) settings.getTransportChannelProvider();
builder.setTransportChannelProvider(
transportProvider
.toBuilder()
.setChannelPrimer(
BigtableChannelPrimer.create(
credentials,
settings.getProjectId(),
settings.getInstanceId(),
settings.getAppProfileId()))
.build());
}
ImmutableMap<TagKey, TagValue> attributes =
ImmutableMap.<TagKey, TagValue>builder()
.put(RpcMeasureConstants.BIGTABLE_PROJECT_ID, TagValue.create(settings.getProjectId()))
.put(
RpcMeasureConstants.BIGTABLE_INSTANCE_ID, TagValue.create(settings.getInstanceId()))
.put(
RpcMeasureConstants.BIGTABLE_APP_PROFILE_ID,
TagValue.create(settings.getAppProfileId()))
.build();
ImmutableMap<String, String> builtinAttributes =
ImmutableMap.<String, String>builder()
.put("project_id", settings.getProjectId())
.put("instance", settings.getInstanceId())
.put("app_profile", settings.getAppProfileId())
.build();
// Inject Opencensus instrumentation
builder.setTracerFactory(
new CompositeTracerFactory(
ImmutableList.of(
// Add OpenCensus Tracing
new OpencensusTracerFactory(
ImmutableMap.<String, String>builder()
// Annotate traces with the same tags as metrics
.put(
RpcMeasureConstants.BIGTABLE_PROJECT_ID.getName(),
settings.getProjectId())
.put(
RpcMeasureConstants.BIGTABLE_INSTANCE_ID.getName(),
settings.getInstanceId())
.put(
RpcMeasureConstants.BIGTABLE_APP_PROFILE_ID.getName(),
settings.getAppProfileId())
// Also annotate traces with library versions
.put("gax", GaxGrpcProperties.getGaxGrpcVersion())
.put("grpc", GaxGrpcProperties.getGrpcVersion())
.put("gapic", Version.VERSION)
.build()),
// Add OpenCensus Metrics
MetricsTracerFactory.create(tagger, stats, attributes),
BuiltinMetricsTracerFactory.create(builtinAttributes),
// Add user configured tracer
settings.getTracerFactory())));
return builder.build();
}
private static void patchCredentials(EnhancedBigtableStubSettings.Builder settings)
throws IOException {
int i = settings.getEndpoint().lastIndexOf(":");
String host = settings.getEndpoint().substring(0, i);
String audience = settings.getJwtAudienceMapping().get(host);
if (audience == null) {
return;
}
URI audienceUri = null;
try {
audienceUri = new URI(audience);
} catch (URISyntaxException e) {
throw new IllegalStateException("invalid JWT audience override", e);
}
CredentialsProvider credentialsProvider = settings.getCredentialsProvider();
if (credentialsProvider == null) {
return;
}
Credentials credentials = credentialsProvider.getCredentials();
if (credentials == null) {
return;
}
if (!(credentials instanceof ServiceAccountJwtAccessCredentials)) {
return;
}
ServiceAccountJwtAccessCredentials jwtCreds = (ServiceAccountJwtAccessCredentials) credentials;
JwtCredentialsWithAudience patchedCreds = new JwtCredentialsWithAudience(jwtCreds, audienceUri);
settings.setCredentialsProvider(FixedCredentialsProvider.create(patchedCreds));
}
public EnhancedBigtableStub(EnhancedBigtableStubSettings settings, ClientContext clientContext) {
this.settings = settings;
this.clientContext = clientContext;
this.requestContext =
RequestContext.create(
settings.getProjectId(), settings.getInstanceId(), settings.getAppProfileId());
this.bulkMutationFlowController =
new FlowController(settings.bulkMutateRowsSettings().getDynamicFlowControlSettings());
this.bulkMutationDynamicFlowControlStats = new DynamicFlowControlStats();
readRowsCallable = createReadRowsCallable(new DefaultRowAdapter());
readRowCallable = createReadRowCallable(new DefaultRowAdapter());
bulkReadRowsCallable = createBulkReadRowsCallable(new DefaultRowAdapter());
sampleRowKeysCallable = createSampleRowKeysCallable();
mutateRowCallable = createMutateRowCallable();
bulkMutateRowsCallable = createBulkMutateRowsCallable();
checkAndMutateRowCallable = createCheckAndMutateRowCallable();
readModifyWriteRowCallable = createReadModifyWriteRowCallable();
generateInitialChangeStreamPartitionsCallable =
createGenerateInitialChangeStreamPartitionsCallable();
readChangeStreamCallable =
createReadChangeStreamCallable(new DefaultChangeStreamRecordAdapter());
pingAndWarmCallable = createPingAndWarmCallable();
}
// <editor-fold desc="Callable creators">
/**
* Creates a callable chain to handle ReadRows RPCs. The chain will:
*
* <ul>
* <li>Dispatch the RPC with {@link ReadRowsRequest}.
* <li>Upon receiving the response stream, it will merge the {@link
* com.google.bigtable.v2.ReadRowsResponse.CellChunk}s in logical rows. The actual row
* implementation can be configured by the {@code rowAdapter} parameter.
* <li>Retry/resume on failure.
* <li>Filter out marker rows.
* </ul>
*
* <p>NOTE: the caller is responsible for adding tracing & metrics.
*/
@BetaApi("This surface is stable yet it might be removed in the future.")
public <RowT> ServerStreamingCallable<ReadRowsRequest, RowT> createReadRowsRawCallable(
RowAdapter<RowT> rowAdapter) {
return createReadRowsBaseCallable(settings.readRowsSettings(), rowAdapter)
.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a callable chain to handle streaming ReadRows RPCs. The chain will:
*
* <ul>
* <li>Convert a {@link Query} into a {@link com.google.bigtable.v2.ReadRowsRequest} and
* dispatch the RPC.
* <li>Upon receiving the response stream, it will merge the {@link
* com.google.bigtable.v2.ReadRowsResponse.CellChunk}s in logical rows. The actual row
* implementation can be configured in by the {@code rowAdapter} parameter.
* <li>Retry/resume on failure.
* <li>Filter out marker rows.
* <li>Add tracing & metrics.
* </ul>
*/
public <RowT> ServerStreamingCallable<Query, RowT> createReadRowsCallable(
RowAdapter<RowT> rowAdapter) {
ServerStreamingCallable<ReadRowsRequest, RowT> readRowsCallable =
createReadRowsBaseCallable(settings.readRowsSettings(), rowAdapter);
ServerStreamingCallable<Query, RowT> readRowsUserCallable =
new ReadRowsUserCallable<>(readRowsCallable, requestContext);
SpanName span = getSpanName("ReadRows");
ServerStreamingCallable<Query, RowT> traced =
new TracedServerStreamingCallable<>(
readRowsUserCallable, clientContext.getTracerFactory(), span);
return traced.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a callable chain to handle point ReadRows RPCs. The chain will:
*
* <ul>
* <li>Convert a {@link Query} into a {@link com.google.bigtable.v2.ReadRowsRequest} and
* dispatch the RPC.
* <li>Upon receiving the response stream, it will merge the {@link
* com.google.bigtable.v2.ReadRowsResponse.CellChunk}s in logical rows. The actual row
* implementation can be configured in by the {@code rowAdapter} parameter.
* <li>Retry/resume on failure.
* <li>Filter out marker rows.
* <li>Add tracing & metrics.
* </ul>
*/
public <RowT> UnaryCallable<Query, RowT> createReadRowCallable(RowAdapter<RowT> rowAdapter) {
ServerStreamingCallable<ReadRowsRequest, RowT> readRowsCallable =
createReadRowsBaseCallable(
ServerStreamingCallSettings.<ReadRowsRequest, Row>newBuilder()
.setRetryableCodes(settings.readRowSettings().getRetryableCodes())
.setRetrySettings(settings.readRowSettings().getRetrySettings())
.setIdleTimeout(settings.readRowSettings().getRetrySettings().getTotalTimeout())
.build(),
rowAdapter);
ReadRowsUserCallable<RowT> readRowCallable =
new ReadRowsUserCallable<>(readRowsCallable, requestContext);
ReadRowsFirstCallable<RowT> firstRow = new ReadRowsFirstCallable<>(readRowCallable);
UnaryCallable<Query, RowT> traced =
new TracedUnaryCallable<>(
firstRow, clientContext.getTracerFactory(), getSpanName("ReadRow"));
return traced.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a callable chain to handle ReadRows RPCs. The chain will:
*
* <ul>
* <li>Dispatch the RPC with {@link ReadRowsRequest}.
* <li>Upon receiving the response stream, it will merge the {@link
* com.google.bigtable.v2.ReadRowsResponse.CellChunk}s in logical rows. The actual row
* implementation can be configured by the {@code rowAdapter} parameter.
* <li>Add bigtable tracer for tracking bigtable specific metrics.
* <li>Retry/resume on failure.
* <li>Filter out marker rows.
* </ul>
*
* <p>NOTE: the caller is responsible for adding tracing & metrics.
*/
private <ReqT, RowT> ServerStreamingCallable<ReadRowsRequest, RowT> createReadRowsBaseCallable(
ServerStreamingCallSettings<ReqT, Row> readRowsSettings, RowAdapter<RowT> rowAdapter) {
ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> base =
GrpcRawCallableFactory.createServerStreamingCallable(
GrpcCallSettings.<ReadRowsRequest, ReadRowsResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getReadRowsMethod())
.setParamsExtractor(
new RequestParamsExtractor<ReadRowsRequest>() {
@Override
public Map<String, String> extract(ReadRowsRequest readRowsRequest) {
return ImmutableMap.of(
"table_name", readRowsRequest.getTableName(),
"app_profile_id", readRowsRequest.getAppProfileId());
}
})
.build(),
readRowsSettings.getRetryableCodes());
ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> withStatsHeaders =
new StatsHeadersServerStreamingCallable<>(base);
// Sometimes ReadRows connections are disconnected via an RST frame. This error is transient and
// should be treated similar to UNAVAILABLE. However, this exception has an INTERNAL error code
// which by default is not retryable. Convert the exception so it can be retried in the client.
ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> convertException =
new ConvertExceptionCallable<>(withStatsHeaders);
ServerStreamingCallable<ReadRowsRequest, RowT> merging =
new RowMergingCallable<>(convertException, rowAdapter);
// Copy settings for the middle ReadRowsRequest -> RowT callable (as opposed to the inner
// ReadRowsRequest -> ReadRowsResponse callable).
ServerStreamingCallSettings<ReadRowsRequest, RowT> innerSettings =
ServerStreamingCallSettings.<ReadRowsRequest, RowT>newBuilder()
.setResumptionStrategy(new ReadRowsResumptionStrategy<>(rowAdapter))
.setRetryableCodes(readRowsSettings.getRetryableCodes())
.setRetrySettings(readRowsSettings.getRetrySettings())
.setIdleTimeout(readRowsSettings.getIdleTimeout())
.setWaitTimeout(readRowsSettings.getWaitTimeout())
.build();
ServerStreamingCallable<ReadRowsRequest, RowT> watched =
Callables.watched(merging, innerSettings, clientContext);
ServerStreamingCallable<ReadRowsRequest, RowT> withBigtableTracer =
new BigtableTracerStreamingCallable<>(watched);
// Retry logic is split into 2 parts to workaround a rare edge case described in
// ReadRowsRetryCompletedCallable
ServerStreamingCallable<ReadRowsRequest, RowT> retrying1 =
new ReadRowsRetryCompletedCallable<>(withBigtableTracer);
ServerStreamingCallable<ReadRowsRequest, RowT> retrying2 =
Callables.retrying(retrying1, innerSettings, clientContext);
return new FilterMarkerRowsCallable<>(retrying2, rowAdapter);
}
/**
* Creates a callable chain to handle bulk ReadRows RPCs. This is meant to be used in ReadRows
* batcher. The chain will:
*
* <ul>
* <li>Convert a {@link Query} into a {@link com.google.bigtable.v2.ReadRowsRequest}.
* <li>Upon receiving the response stream, it will merge the {@link
* com.google.bigtable.v2.ReadRowsResponse.CellChunk}s in logical rows. The actual row
* implementation can be configured in by the {@code rowAdapter} parameter.
* <li>Retry/resume on failure.
* <li>Filter out marker rows.
* <li>Construct a {@link UnaryCallable} that will buffer the entire stream into memory before
* completing. If the stream is empty, then the list will be empty.
* <li>Add tracing & metrics.
* </ul>
*/
private <RowT> UnaryCallable<Query, List<RowT>> createBulkReadRowsCallable(
RowAdapter<RowT> rowAdapter) {
ServerStreamingCallable<ReadRowsRequest, RowT> readRowsCallable =
createReadRowsBaseCallable(settings.readRowsSettings(), rowAdapter);
ServerStreamingCallable<Query, RowT> readRowsUserCallable =
new ReadRowsUserCallable<>(readRowsCallable, requestContext);
SpanName span = getSpanName("ReadRows");
// The TracedBatcherUnaryCallable has to be wrapped by the TracedUnaryCallable, so that
// TracedUnaryCallable can inject a tracer for the TracedBatcherUnaryCallable to interact with
UnaryCallable<Query, List<RowT>> tracedBatcher =
new TracedBatcherUnaryCallable<>(readRowsUserCallable.all());
UnaryCallable<Query, List<RowT>> traced =
new TracedUnaryCallable<>(tracedBatcher, clientContext.getTracerFactory(), span);
return traced.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a callable chain to handle SampleRowKeys RPcs. The chain will:
*
* <ul>
* <li>Convert a table id to a {@link com.google.bigtable.v2.SampleRowKeysRequest}.
* <li>Dispatch the request to the GAPIC's {@link BigtableStub#sampleRowKeysCallable()}.
* <li>Spool responses into a list.
* <li>Retry on failure.
* <li>Convert the responses into {@link KeyOffset}s.
* <li>Add tracing & metrics.
* </ul>
*/
private UnaryCallable<String, List<KeyOffset>> createSampleRowKeysCallable() {
String methodName = "SampleRowKeys";
ServerStreamingCallable<SampleRowKeysRequest, SampleRowKeysResponse> base =
GrpcRawCallableFactory.createServerStreamingCallable(
GrpcCallSettings.<SampleRowKeysRequest, SampleRowKeysResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getSampleRowKeysMethod())
.setParamsExtractor(
new RequestParamsExtractor<SampleRowKeysRequest>() {
@Override
public Map<String, String> extract(
SampleRowKeysRequest sampleRowKeysRequest) {
return ImmutableMap.of(
"table_name", sampleRowKeysRequest.getTableName(),
"app_profile_id", sampleRowKeysRequest.getAppProfileId());
}
})
.build(),
settings.sampleRowKeysSettings().getRetryableCodes());
UnaryCallable<SampleRowKeysRequest, List<SampleRowKeysResponse>> spoolable = base.all();
UnaryCallable<SampleRowKeysRequest, List<SampleRowKeysResponse>> withStatsHeaders =
new StatsHeadersUnaryCallable<>(spoolable);
UnaryCallable<SampleRowKeysRequest, List<SampleRowKeysResponse>> withBigtableTracer =
new BigtableTracerUnaryCallable<>(withStatsHeaders);
UnaryCallable<SampleRowKeysRequest, List<SampleRowKeysResponse>> retryable =
Callables.retrying(withBigtableTracer, settings.sampleRowKeysSettings(), clientContext);
return createUserFacingUnaryCallable(
methodName, new SampleRowKeysCallable(retryable, requestContext));
}
/**
* Creates a callable chain to handle MutateRow RPCs. The chain will:
*
* <ul>
* <li>Convert a {@link RowMutation} into a {@link com.google.bigtable.v2.MutateRowRequest}.
* <li>Add tracing & metrics.
* </ul>
*/
private UnaryCallable<RowMutation, Void> createMutateRowCallable() {
String methodName = "MutateRow";
UnaryCallable<MutateRowRequest, MutateRowResponse> base =
GrpcRawCallableFactory.createUnaryCallable(
GrpcCallSettings.<MutateRowRequest, MutateRowResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getMutateRowMethod())
.setParamsExtractor(
new RequestParamsExtractor<MutateRowRequest>() {
@Override
public Map<String, String> extract(MutateRowRequest mutateRowRequest) {
return ImmutableMap.of(
"table_name", mutateRowRequest.getTableName(),
"app_profile_id", mutateRowRequest.getAppProfileId());
}
})
.build(),
settings.mutateRowSettings().getRetryableCodes());
UnaryCallable<MutateRowRequest, MutateRowResponse> withStatsHeaders =
new StatsHeadersUnaryCallable<>(base);
UnaryCallable<MutateRowRequest, MutateRowResponse> withBigtableTracer =
new BigtableTracerUnaryCallable<>(withStatsHeaders);
UnaryCallable<MutateRowRequest, MutateRowResponse> retrying =
Callables.retrying(withBigtableTracer, settings.mutateRowSettings(), clientContext);
return createUserFacingUnaryCallable(
methodName, new MutateRowCallable(retrying, requestContext));
}
/**
* Creates a callable chain to handle MutatesRows RPCs. This is meant to be used for manual
* batching. The chain will:
*
* <ul>
* <li>Convert a {@link BulkMutation} into a {@link MutateRowsRequest}.
* <li>Process the response and schedule retries. At the end of each attempt, entries that have
* been applied, are filtered from the next attempt. Also, any entries that failed with a
* nontransient error, are filtered from the next attempt. This will continue until there
* are no more entries or there are no more retry attempts left.
* <li>Wrap batch failures in a {@link
* com.google.cloud.bigtable.data.v2.models.MutateRowsException}.
* <li>Add tracing & metrics.
* </ul>
*/
private UnaryCallable<BulkMutation, Void> createBulkMutateRowsCallable() {
UnaryCallable<MutateRowsRequest, Void> baseCallable = createMutateRowsBaseCallable();
UnaryCallable<MutateRowsRequest, Void> flowControlCallable = null;
if (settings.bulkMutateRowsSettings().isLatencyBasedThrottlingEnabled()) {
flowControlCallable =
new DynamicFlowControlCallable(
baseCallable,
bulkMutationFlowController,
bulkMutationDynamicFlowControlStats,
settings.bulkMutateRowsSettings().getTargetRpcLatencyMs(),
FLOW_CONTROL_ADJUSTING_INTERVAL_MS);
}
UnaryCallable<BulkMutation, Void> userFacing =
new BulkMutateRowsUserFacingCallable(
flowControlCallable != null ? flowControlCallable : baseCallable, requestContext);
SpanName spanName = getSpanName("MutateRows");
UnaryCallable<BulkMutation, Void> tracedBatcherUnaryCallable =
new TracedBatcherUnaryCallable<>(userFacing);
UnaryCallable<BulkMutation, Void> traced =
new TracedUnaryCallable<>(
tracedBatcherUnaryCallable, clientContext.getTracerFactory(), spanName);
return traced.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a {@link BatcherImpl} to handle {@link MutateRowsRequest.Entry} mutations. This is
* meant to be used for automatic batching with flow control.
*
* <ul>
* <li>Uses {@link MutateRowsBatchingDescriptor} to spool the {@link RowMutationEntry} mutations
* and send them out as {@link BulkMutation}.
* <li>Uses {@link #bulkMutateRowsCallable()} to perform RPC.
* <li>Batching thresholds can be configured from {@link
* EnhancedBigtableStubSettings#bulkMutateRowsSettings()}.
* <li>Process the response and schedule retries. At the end of each attempt, entries that have
* been applied, are filtered from the next attempt. Also, any entries that failed with a
* nontransient error, are filtered from the next attempt. This will continue until there
* are no more entries or there are no more retry attempts left.
* <li>Wrap batch failures in a {@link
* com.google.cloud.bigtable.data.v2.models.MutateRowsException}.
* <li>Split the responses using {@link MutateRowsBatchingDescriptor}.
* </ul>
*/
public Batcher<RowMutationEntry, Void> newMutateRowsBatcher(
@Nonnull String tableId, @Nullable GrpcCallContext ctx) {
return new BatcherImpl<>(
settings.bulkMutateRowsSettings().getBatchingDescriptor(),
bulkMutateRowsCallable,
BulkMutation.create(tableId),
settings.bulkMutateRowsSettings().getBatchingSettings(),
clientContext.getExecutor(),
bulkMutationFlowController,
MoreObjects.firstNonNull(ctx, clientContext.getDefaultCallContext()));
}
/**
* Creates a {@link BatcherImpl} to handle {@link Query#rowKey(String)}. This is meant for bulk
* read with flow control.
*
* <ul>
* <li>Uses {@link ReadRowsBatchingDescriptor} to merge the row-keys and send them out as {@link
* Query}.
* <li>Uses {@link #readRowsCallable()} to perform RPC.
* <li>Batching thresholds can be configured from {@link
* EnhancedBigtableStubSettings#bulkReadRowsSettings()}.
* <li>Schedule retries for retryable exceptions until there are no more entries or there are no
* more retry attempts left.
* <li>Split the responses using {@link ReadRowsBatchingDescriptor}.
* </ul>
*/
public Batcher<ByteString, Row> newBulkReadRowsBatcher(
@Nonnull Query query, @Nullable GrpcCallContext ctx) {
Preconditions.checkNotNull(query, "query cannot be null");
return new BatcherImpl<>(
settings.bulkReadRowsSettings().getBatchingDescriptor(),
bulkReadRowsCallable,
query,
settings.bulkReadRowsSettings().getBatchingSettings(),
clientContext.getExecutor(),
null,
MoreObjects.firstNonNull(ctx, clientContext.getDefaultCallContext()));
}
/**
* Internal helper to create the base MutateRows callable chain. The chain is responsible for
* retrying individual entry in case of error.
*
* <p>NOTE: the caller is responsible for adding tracing & metrics.
*
* @see MutateRowsRetryingCallable for more details
*/
private UnaryCallable<MutateRowsRequest, Void> createMutateRowsBaseCallable() {
ServerStreamingCallable<MutateRowsRequest, MutateRowsResponse> base =
GrpcRawCallableFactory.createServerStreamingCallable(
GrpcCallSettings.<MutateRowsRequest, MutateRowsResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getMutateRowsMethod())
.setParamsExtractor(
new RequestParamsExtractor<MutateRowsRequest>() {
@Override
public Map<String, String> extract(MutateRowsRequest mutateRowsRequest) {
return ImmutableMap.of(
"table_name", mutateRowsRequest.getTableName(),
"app_profile_id", mutateRowsRequest.getAppProfileId());
}
})
.build(),
settings.bulkMutateRowsSettings().getRetryableCodes());
ServerStreamingCallable<MutateRowsRequest, MutateRowsResponse> callable =
new StatsHeadersServerStreamingCallable<>(base);
if (settings.bulkMutateRowsSettings().isServerInitiatedFlowControlEnabled()) {
callable = new RateLimitingServerStreamingCallable(callable);
}
// Sometimes MutateRows connections are disconnected via an RST frame. This error is transient
// and
// should be treated similar to UNAVAILABLE. However, this exception has an INTERNAL error code
// which by default is not retryable. Convert the exception so it can be retried in the client.
ServerStreamingCallable<MutateRowsRequest, MutateRowsResponse> convertException =
new ConvertExceptionCallable<>(callable);
ServerStreamingCallable<MutateRowsRequest, MutateRowsResponse> withBigtableTracer =
new BigtableTracerStreamingCallable<>(convertException);
RetryAlgorithm<Void> retryAlgorithm =
new RetryAlgorithm<>(
new ApiResultRetryAlgorithm<Void>(),
new ExponentialRetryAlgorithm(
settings.bulkMutateRowsSettings().getRetrySettings(), clientContext.getClock()));
RetryingExecutorWithContext<Void> retryingExecutor =
new ScheduledRetryingExecutor<>(retryAlgorithm, clientContext.getExecutor());
return new MutateRowsRetryingCallable(
clientContext.getDefaultCallContext(),
withBigtableTracer,
retryingExecutor,
settings.bulkMutateRowsSettings().getRetryableCodes());
}
/**
* Creates a callable chain to handle CheckAndMutateRow RPCs. THe chain will:
*
* <ul>
* <li>Convert {@link ConditionalRowMutation}s into {@link
* com.google.bigtable.v2.CheckAndMutateRowRequest}s.
* <li>Add tracing & metrics.
* </ul>
*/
private UnaryCallable<ConditionalRowMutation, Boolean> createCheckAndMutateRowCallable() {
String methodName = "CheckAndMutateRow";
UnaryCallable<CheckAndMutateRowRequest, CheckAndMutateRowResponse> base =
GrpcRawCallableFactory.createUnaryCallable(
GrpcCallSettings.<CheckAndMutateRowRequest, CheckAndMutateRowResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getCheckAndMutateRowMethod())
.setParamsExtractor(
new RequestParamsExtractor<CheckAndMutateRowRequest>() {
@Override
public Map<String, String> extract(
CheckAndMutateRowRequest checkAndMutateRowRequest) {
return ImmutableMap.of(
"table_name", checkAndMutateRowRequest.getTableName(),
"app_profile_id", checkAndMutateRowRequest.getAppProfileId());
}
})
.build(),
settings.checkAndMutateRowSettings().getRetryableCodes());
UnaryCallable<CheckAndMutateRowRequest, CheckAndMutateRowResponse> withStatsHeaders =
new StatsHeadersUnaryCallable<>(base);
UnaryCallable<CheckAndMutateRowRequest, CheckAndMutateRowResponse> withBigtableTracer =
new BigtableTracerUnaryCallable<>(withStatsHeaders);
UnaryCallable<CheckAndMutateRowRequest, CheckAndMutateRowResponse> retrying =
Callables.retrying(withBigtableTracer, settings.checkAndMutateRowSettings(), clientContext);
return createUserFacingUnaryCallable(
methodName, new CheckAndMutateRowCallable(retrying, requestContext));
}
/**
* Creates a callable chain to handle ReadModifyWriteRow RPCs. The chain will:
*
* <ul>
* <li>Convert {@link ReadModifyWriteRow}s into {@link
* com.google.bigtable.v2.ReadModifyWriteRowRequest}s.
* <li>Convert the responses into {@link Row}.
* <li>Add tracing & metrics.
* </ul>
*/
private UnaryCallable<ReadModifyWriteRow, Row> createReadModifyWriteRowCallable() {
UnaryCallable<ReadModifyWriteRowRequest, ReadModifyWriteRowResponse> base =
GrpcRawCallableFactory.createUnaryCallable(
GrpcCallSettings.<ReadModifyWriteRowRequest, ReadModifyWriteRowResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getReadModifyWriteRowMethod())
.setParamsExtractor(
new RequestParamsExtractor<ReadModifyWriteRowRequest>() {
@Override
public Map<String, String> extract(ReadModifyWriteRowRequest request) {
return ImmutableMap.of(
"table_name", request.getTableName(),
"app_profile_id", request.getAppProfileId());
}
})
.build(),
settings.readModifyWriteRowSettings().getRetryableCodes());
UnaryCallable<ReadModifyWriteRowRequest, ReadModifyWriteRowResponse> withStatsHeaders =
new StatsHeadersUnaryCallable<>(base);
String methodName = "ReadModifyWriteRow";
UnaryCallable<ReadModifyWriteRowRequest, ReadModifyWriteRowResponse> withBigtableTracer =
new BigtableTracerUnaryCallable<>(withStatsHeaders);
UnaryCallable<ReadModifyWriteRowRequest, ReadModifyWriteRowResponse> retrying =
Callables.retrying(
withBigtableTracer, settings.readModifyWriteRowSettings(), clientContext);
return createUserFacingUnaryCallable(
methodName, new ReadModifyWriteRowCallable(retrying, requestContext));
}
/**
* Creates a callable chain to handle streaming GenerateInitialChangeStreamPartitions RPCs. The
* chain will:
*
* <ul>
* <li>Convert a String format tableId into a {@link
* GenerateInitialChangeStreamPartitionsRequest} and dispatch the RPC.
* <li>Upon receiving the response stream, it will convert the {@link
* com.google.bigtable.v2.GenerateInitialChangeStreamPartitionsResponse}s into {@link
* RowRange}.
* </ul>
*/
private ServerStreamingCallable<String, ByteStringRange>
createGenerateInitialChangeStreamPartitionsCallable() {
ServerStreamingCallable<
GenerateInitialChangeStreamPartitionsRequest,
GenerateInitialChangeStreamPartitionsResponse>
base =
GrpcRawCallableFactory.createServerStreamingCallable(
GrpcCallSettings
.<GenerateInitialChangeStreamPartitionsRequest,
GenerateInitialChangeStreamPartitionsResponse>
newBuilder()
.setMethodDescriptor(
BigtableGrpc.getGenerateInitialChangeStreamPartitionsMethod())
.setParamsExtractor(
new RequestParamsExtractor<GenerateInitialChangeStreamPartitionsRequest>() {
@Override
public Map<String, String> extract(
GenerateInitialChangeStreamPartitionsRequest
generateInitialChangeStreamPartitionsRequest) {
return ImmutableMap.of(
"table_name",
generateInitialChangeStreamPartitionsRequest.getTableName(),
"app_profile_id",
generateInitialChangeStreamPartitionsRequest.getAppProfileId());
}
})
.build(),
settings.generateInitialChangeStreamPartitionsSettings().getRetryableCodes());
ServerStreamingCallable<String, ByteStringRange> userCallable =
new GenerateInitialChangeStreamPartitionsUserCallable(base, requestContext);
ServerStreamingCallable<String, ByteStringRange> withStatsHeaders =
new StatsHeadersServerStreamingCallable<>(userCallable);
// Sometimes GenerateInitialChangeStreamPartitions connections are disconnected via an RST
// frame. This error is transient and should be treated similar to UNAVAILABLE. However, this
// exception has an INTERNAL error code which by default is not retryable. Convert the exception
// so it can be retried in the client.
ServerStreamingCallable<String, ByteStringRange> convertException =
new ConvertExceptionCallable<>(withStatsHeaders);
// Copy idle timeout settings for watchdog.
ServerStreamingCallSettings<String, ByteStringRange> innerSettings =
ServerStreamingCallSettings.<String, ByteStringRange>newBuilder()
.setRetryableCodes(
settings.generateInitialChangeStreamPartitionsSettings().getRetryableCodes())
.setRetrySettings(
settings.generateInitialChangeStreamPartitionsSettings().getRetrySettings())
.setIdleTimeout(
settings.generateInitialChangeStreamPartitionsSettings().getIdleTimeout())
.setWaitTimeout(
settings.generateInitialChangeStreamPartitionsSettings().getWaitTimeout())
.build();
ServerStreamingCallable<String, ByteStringRange> watched =
Callables.watched(convertException, innerSettings, clientContext);
ServerStreamingCallable<String, ByteStringRange> withBigtableTracer =
new BigtableTracerStreamingCallable<>(watched);
ServerStreamingCallable<String, ByteStringRange> retrying =
Callables.retrying(withBigtableTracer, innerSettings, clientContext);
SpanName span = getSpanName("GenerateInitialChangeStreamPartitions");
ServerStreamingCallable<String, ByteStringRange> traced =
new TracedServerStreamingCallable<>(retrying, clientContext.getTracerFactory(), span);
return traced.withDefaultCallContext(clientContext.getDefaultCallContext());
}
/**
* Creates a callable chain to handle streaming ReadChangeStream RPCs. The chain will:
*
* <ul>
* <li>Convert a {@link ReadChangeStreamQuery} into a {@link ReadChangeStreamRequest} and
* dispatch the RPC.
* <li>Upon receiving the response stream, it will produce a stream of ChangeStreamRecordT. In
* case of mutations, it will merge the {@link ReadChangeStreamResponse.DataChange}s into
* {@link ChangeStreamMutation}. The actual change stream record implementation can be
* configured by the {@code changeStreamRecordAdapter} parameter.
* <li>Retry/resume on failure.
* <li>Add tracing & metrics.
* </ul>
*/
public <ChangeStreamRecordT>
ServerStreamingCallable<ReadChangeStreamQuery, ChangeStreamRecordT>
createReadChangeStreamCallable(
ChangeStreamRecordAdapter<ChangeStreamRecordT> changeStreamRecordAdapter) {
ServerStreamingCallable<ReadChangeStreamRequest, ReadChangeStreamResponse> base =
GrpcRawCallableFactory.createServerStreamingCallable(
GrpcCallSettings.<ReadChangeStreamRequest, ReadChangeStreamResponse>newBuilder()
.setMethodDescriptor(BigtableGrpc.getReadChangeStreamMethod())
.setParamsExtractor(
new RequestParamsExtractor<ReadChangeStreamRequest>() {
@Override
public Map<String, String> extract(
ReadChangeStreamRequest readChangeStreamRequest) {
return ImmutableMap.of(
"table_name", readChangeStreamRequest.getTableName(),
"app_profile_id", readChangeStreamRequest.getAppProfileId());
}
})
.build(),
settings.readChangeStreamSettings().getRetryableCodes());
ServerStreamingCallable<ReadChangeStreamRequest, ReadChangeStreamResponse> withStatsHeaders =
new StatsHeadersServerStreamingCallable<>(base);
// Sometimes ReadChangeStream connections are disconnected via an RST frame. This error is
// transient and should be treated similar to UNAVAILABLE. However, this exception has an
// INTERNAL error code which by default is not retryable. Convert the exception it can be
// retried in the client.
ServerStreamingCallable<ReadChangeStreamRequest, ReadChangeStreamResponse> convertException =
new ConvertExceptionCallable<>(withStatsHeaders);
ServerStreamingCallable<ReadChangeStreamRequest, ChangeStreamRecordT> merging =
new ChangeStreamRecordMergingCallable<>(convertException, changeStreamRecordAdapter);
// Copy idle timeout settings for watchdog.
ServerStreamingCallSettings<ReadChangeStreamRequest, ChangeStreamRecordT> innerSettings =
ServerStreamingCallSettings.<ReadChangeStreamRequest, ChangeStreamRecordT>newBuilder()
.setResumptionStrategy(
new ReadChangeStreamResumptionStrategy<>(changeStreamRecordAdapter))
.setRetryableCodes(settings.readChangeStreamSettings().getRetryableCodes())
.setRetrySettings(settings.readChangeStreamSettings().getRetrySettings())
.setIdleTimeout(settings.readChangeStreamSettings().getIdleTimeout())
.setWaitTimeout(settings.readChangeStreamSettings().getWaitTimeout())
.build();
ServerStreamingCallable<ReadChangeStreamRequest, ChangeStreamRecordT> watched =
Callables.watched(merging, innerSettings, clientContext);
ServerStreamingCallable<ReadChangeStreamRequest, ChangeStreamRecordT> withBigtableTracer =
new BigtableTracerStreamingCallable<>(watched);
ServerStreamingCallable<ReadChangeStreamRequest, ChangeStreamRecordT> readChangeStreamCallable =
Callables.retrying(withBigtableTracer, innerSettings, clientContext);
ServerStreamingCallable<ReadChangeStreamQuery, ChangeStreamRecordT>
readChangeStreamUserCallable =
new ReadChangeStreamUserCallable<>(readChangeStreamCallable, requestContext);