Repository navigation
Expand file tree
/
Copy pathExecutableNormalizedOperationFactory.java
More file actions
728 lines (644 loc) · 35.6 KB
/
Copy pathExecutableNormalizedOperationFactory.java
File metadata and controls
728 lines (644 loc) · 35.6 KB
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
package graphql.normalized;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import graphql.GraphQLContext;
import graphql.PublicApi;
import graphql.collect.ImmutableKit;
import graphql.execution.AbortExecutionException;
import graphql.execution.CoercedVariables;
import graphql.execution.MergedField;
import graphql.execution.RawVariables;
import graphql.execution.ValuesResolver;
import graphql.execution.conditional.ConditionalNodes;
import graphql.execution.directives.QueryDirectives;
import graphql.execution.directives.QueryDirectivesImpl;
import graphql.introspection.Introspection;
import graphql.language.Document;
import graphql.language.Field;
import graphql.language.FragmentDefinition;
import graphql.language.FragmentSpread;
import graphql.language.InlineFragment;
import graphql.language.NodeUtil;
import graphql.language.OperationDefinition;
import graphql.language.Selection;
import graphql.language.SelectionSet;
import graphql.language.VariableDefinition;
import graphql.schema.FieldCoordinates;
import graphql.schema.GraphQLCompositeType;
import graphql.schema.GraphQLFieldDefinition;
import graphql.schema.GraphQLInterfaceType;
import graphql.schema.GraphQLNamedOutputType;
import graphql.schema.GraphQLObjectType;
import graphql.schema.GraphQLSchema;
import graphql.schema.GraphQLType;
import graphql.schema.GraphQLTypeUtil;
import graphql.schema.GraphQLUnionType;
import graphql.schema.GraphQLUnmodifiedType;
import graphql.schema.impl.SchemaUtil;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.function.BiConsumer;
import static graphql.Assert.assertNotNull;
import static graphql.Assert.assertShouldNeverHappen;
import static graphql.collect.ImmutableKit.map;
import static graphql.schema.GraphQLTypeUtil.unwrapAll;
import static graphql.util.FpKit.filterSet;
import static graphql.util.FpKit.groupingBy;
import static graphql.util.FpKit.intersection;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonList;
/**
* This factory can create a {@link ExecutableNormalizedOperation} which represents what would be executed
* during a given graphql operation.
*/
@PublicApi
public class ExecutableNormalizedOperationFactory {
public static class Options {
private final GraphQLContext graphQLContext;
private final Locale locale;
private final int maxChildrenDepth;
private Options(GraphQLContext graphQLContext,
Locale locale,
int maxChildrenDepth) {
this.graphQLContext = graphQLContext;
this.locale = locale;
this.maxChildrenDepth = maxChildrenDepth;
}
public static Options defaultOptions() {
return new Options(
GraphQLContext.getDefault(),
Locale.getDefault(),
Integer.MAX_VALUE);
}
/**
* Locale to use when parsing the query.
* <p>
* e.g. can be passed to {@link graphql.schema.Coercing} for parsing.
*
* @param locale the locale to use
* @return new options object to use
*/
public Options locale(Locale locale) {
return new Options(this.graphQLContext, locale, this.maxChildrenDepth);
}
/**
* Context object to use when parsing the operation.
* <p>
* Can be used to intercept input values e.g. using {@link graphql.execution.values.InputInterceptor}.
*
* @param graphQLContext the context to use
* @return new options object to use
*/
public Options graphQLContext(GraphQLContext graphQLContext) {
return new Options(graphQLContext, this.locale, this.maxChildrenDepth);
}
/**
* Controls the maximum depth of the operation. Can be used to prevent
* against malicious operations.
*
* @param maxChildrenDepth the max depth
* @return new options object to use
*/
public Options maxChildrenDepth(int maxChildrenDepth) {
return new Options(this.graphQLContext, this.locale, maxChildrenDepth);
}
/**
* @return context to use during operation parsing
* @see #graphQLContext(GraphQLContext)
*/
public GraphQLContext getGraphQLContext() {
return graphQLContext;
}
/**
* @return locale to use during operation parsing
* @see #locale(Locale)
*/
public Locale getLocale() {
return locale;
}
/**
* @return maximum children depth before aborting parsing
* @see #maxChildrenDepth(int)
*/
public int getMaxChildrenDepth() {
return maxChildrenDepth;
}
}
private final ConditionalNodes conditionalNodes = new ConditionalNodes();
/**
* This will create a runtime representation of the graphql operation that would be executed
* in a runtime sense.
*
* @param graphQLSchema the schema to be used
* @param document the {@link Document} holding the operation text
* @param operationName the operation name to use
* @param coercedVariableValues the coerced variables to use
*
* @return a runtime representation of the graphql operation.
*/
public static ExecutableNormalizedOperation createExecutableNormalizedOperation(
GraphQLSchema graphQLSchema,
Document document,
String operationName,
CoercedVariables coercedVariableValues
) {
NodeUtil.GetOperationResult getOperationResult = NodeUtil.getOperation(document, operationName);
return new ExecutableNormalizedOperationFactory().createNormalizedQueryImpl(graphQLSchema,
getOperationResult.operationDefinition,
getOperationResult.fragmentsByName,
coercedVariableValues,
null,
Options.defaultOptions());
}
/**
* This will create a runtime representation of the graphql operation that would be executed
* in a runtime sense.
*
* @param graphQLSchema the schema to be used
* @param operationDefinition the operation to be executed
* @param fragments a set of fragments associated with the operation
* @param coercedVariableValues the coerced variables to use
*
* @return a runtime representation of the graphql operation.
*/
public static ExecutableNormalizedOperation createExecutableNormalizedOperation(GraphQLSchema graphQLSchema,
OperationDefinition operationDefinition,
Map<String, FragmentDefinition> fragments,
CoercedVariables coercedVariableValues) {
return new ExecutableNormalizedOperationFactory().createNormalizedQueryImpl(graphQLSchema,
operationDefinition,
fragments,
coercedVariableValues,
null,
Options.defaultOptions());
}
/**
* This will create a runtime representation of the graphql operation that would be executed
* in a runtime sense.
*
* @param graphQLSchema the schema to be used
* @param document the {@link Document} holding the operation text
* @param operationName the operation name to use
* @param rawVariables the raw variables to be coerced
*
* @return a runtime representation of the graphql operation.
*/
public static ExecutableNormalizedOperation createExecutableNormalizedOperationWithRawVariables(GraphQLSchema graphQLSchema,
Document document,
String operationName,
RawVariables rawVariables) {
return createExecutableNormalizedOperationWithRawVariables(graphQLSchema,
document,
operationName,
rawVariables,
Options.defaultOptions());
}
/**
* This will create a runtime representation of the graphql operation that would be executed
* in a runtime sense.
*
* @param graphQLSchema the schema to be used
* @param document the {@link Document} holding the operation text
* @param operationName the operation name to use
* @param rawVariables the raw variables that have not yet been coerced
* @param locale the {@link Locale} to use during coercion
* @param graphQLContext the {@link GraphQLContext} to use during coercion
*
* @return a runtime representation of the graphql operation.
*/
public static ExecutableNormalizedOperation createExecutableNormalizedOperationWithRawVariables(
GraphQLSchema graphQLSchema,
Document document,
String operationName,
RawVariables rawVariables,
GraphQLContext graphQLContext,
Locale locale
) {
return createExecutableNormalizedOperationWithRawVariables(
graphQLSchema,
document,
operationName,
rawVariables,
Options.defaultOptions().graphQLContext(graphQLContext).locale(locale));
}
/**
* This will create a runtime representation of the graphql operation that would be executed
* in a runtime sense.
*
* @param graphQLSchema the schema to be used
* @param document the {@link Document} holding the operation text
* @param operationName the operation name to use
* @param rawVariables the raw variables that have not yet been coerced
* @param options the {@link Options} to use for parsing
*
* @return a runtime representation of the graphql operation.
*/
public static ExecutableNormalizedOperation createExecutableNormalizedOperationWithRawVariables(GraphQLSchema graphQLSchema,
Document document,
String operationName,
RawVariables rawVariables,
Options options) {
NodeUtil.GetOperationResult getOperationResult = NodeUtil.getOperation(document, operationName);
return new ExecutableNormalizedOperationFactory().createExecutableNormalizedOperationImplWithRawVariables(graphQLSchema,
getOperationResult.operationDefinition,
getOperationResult.fragmentsByName,
rawVariables,
options
);
}
private ExecutableNormalizedOperation createExecutableNormalizedOperationImplWithRawVariables(GraphQLSchema graphQLSchema,
OperationDefinition operationDefinition,
Map<String, FragmentDefinition> fragments,
RawVariables rawVariables,
Options options) {
List<VariableDefinition> variableDefinitions = operationDefinition.getVariableDefinitions();
CoercedVariables coercedVariableValues = ValuesResolver.coerceVariableValues(graphQLSchema,
variableDefinitions,
rawVariables,
options.getGraphQLContext(),
options.getLocale());
Map<String, NormalizedInputValue> normalizedVariableValues = ValuesResolver.getNormalizedVariableValues(graphQLSchema,
variableDefinitions,
rawVariables,
options.getGraphQLContext(),
options.getLocale());
return createNormalizedQueryImpl(graphQLSchema,
operationDefinition,
fragments,
coercedVariableValues,
normalizedVariableValues,
options);
}
/**
* Creates a new ExecutableNormalizedOperation for the provided query
*/
private ExecutableNormalizedOperation createNormalizedQueryImpl(GraphQLSchema graphQLSchema,
OperationDefinition operationDefinition,
Map<String, FragmentDefinition> fragments,
CoercedVariables coercedVariableValues,
@Nullable Map<String, NormalizedInputValue> normalizedVariableValues,
Options options) {
FieldCollectorNormalizedQueryParams parameters = FieldCollectorNormalizedQueryParams
.newParameters()
.fragments(fragments)
.schema(graphQLSchema)
.coercedVariables(coercedVariableValues.toMap())
.normalizedVariables(normalizedVariableValues)
.build();
GraphQLObjectType rootType = SchemaUtil.getOperationRootType(graphQLSchema, operationDefinition);
CollectNFResult collectFromOperationResult = collectFromOperation(parameters, operationDefinition, rootType);
ImmutableListMultimap.Builder<Field, ExecutableNormalizedField> fieldToNormalizedField = ImmutableListMultimap.builder();
ImmutableMap.Builder<ExecutableNormalizedField, MergedField> normalizedFieldToMergedField = ImmutableMap.builder();
ImmutableMap.Builder<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives = ImmutableMap.builder();
ImmutableListMultimap.Builder<FieldCoordinates, ExecutableNormalizedField> coordinatesToNormalizedFields = ImmutableListMultimap.builder();
BiConsumer<ExecutableNormalizedField, MergedField> captureMergedField = (enf, mergedFld) -> {
// QueryDirectivesImpl is a lazy object and only computes itself when asked for
QueryDirectives queryDirectives = new QueryDirectivesImpl(mergedFld, graphQLSchema, coercedVariableValues.toMap(), options.getGraphQLContext(), options.getLocale());
normalizedFieldToQueryDirectives.put(enf, queryDirectives);
normalizedFieldToMergedField.put(enf, mergedFld);
};
for (ExecutableNormalizedField topLevel : collectFromOperationResult.children) {
ImmutableList<FieldAndAstParent> fieldAndAstParents = collectFromOperationResult.normalizedFieldToAstFields.get(topLevel);
MergedField mergedField = newMergedField(fieldAndAstParents);
captureMergedField.accept(topLevel, mergedField);
updateFieldToNFMap(topLevel, fieldAndAstParents, fieldToNormalizedField);
updateCoordinatedToNFMap(coordinatesToNormalizedFields, topLevel);
buildFieldWithChildren(
topLevel,
fieldAndAstParents,
parameters,
fieldToNormalizedField,
captureMergedField,
coordinatesToNormalizedFields,
1,
options.getMaxChildrenDepth());
}
for (FieldCollectorNormalizedQueryParams.PossibleMerger possibleMerger : parameters.getPossibleMergerList()) {
List<ExecutableNormalizedField> childrenWithSameResultKey = possibleMerger.parent.getChildrenWithSameResultKey(possibleMerger.resultKey);
ENFMerger.merge(possibleMerger.parent, childrenWithSameResultKey, graphQLSchema);
}
return new ExecutableNormalizedOperation(
operationDefinition.getOperation(),
operationDefinition.getName(),
new ArrayList<>(collectFromOperationResult.children),
fieldToNormalizedField.build(),
normalizedFieldToMergedField.build(),
normalizedFieldToQueryDirectives.build(),
coordinatesToNormalizedFields.build()
);
}
private void buildFieldWithChildren(ExecutableNormalizedField executableNormalizedField,
ImmutableList<FieldAndAstParent> fieldAndAstParents,
FieldCollectorNormalizedQueryParams fieldCollectorNormalizedQueryParams,
ImmutableListMultimap.Builder<Field, ExecutableNormalizedField> fieldNormalizedField,
BiConsumer<ExecutableNormalizedField, MergedField> captureMergedField,
ImmutableListMultimap.Builder<FieldCoordinates, ExecutableNormalizedField> coordinatesToNormalizedFields,
int curLevel,
int maxLevel) {
if (curLevel > maxLevel) {
throw new AbortExecutionException("Maximum query depth exceeded " + curLevel + " > " + maxLevel);
}
CollectNFResult nextLevel = collectFromMergedField(fieldCollectorNormalizedQueryParams, executableNormalizedField, fieldAndAstParents, curLevel + 1);
for (ExecutableNormalizedField childENF : nextLevel.children) {
executableNormalizedField.addChild(childENF);
ImmutableList<FieldAndAstParent> childFieldAndAstParents = nextLevel.normalizedFieldToAstFields.get(childENF);
MergedField mergedField = newMergedField(childFieldAndAstParents);
captureMergedField.accept(childENF, mergedField);
updateFieldToNFMap(childENF, childFieldAndAstParents, fieldNormalizedField);
updateCoordinatedToNFMap(coordinatesToNormalizedFields, childENF);
buildFieldWithChildren(childENF,
childFieldAndAstParents,
fieldCollectorNormalizedQueryParams,
fieldNormalizedField,
captureMergedField,
coordinatesToNormalizedFields,
curLevel + 1,
maxLevel);
}
}
private static MergedField newMergedField(ImmutableList<FieldAndAstParent> fieldAndAstParents) {
return MergedField.newMergedField(map(fieldAndAstParents, fieldAndAstParent -> fieldAndAstParent.field)).build();
}
private void updateFieldToNFMap(ExecutableNormalizedField executableNormalizedField,
ImmutableList<FieldAndAstParent> mergedField,
ImmutableListMultimap.Builder<Field, ExecutableNormalizedField> fieldToNormalizedField) {
for (FieldAndAstParent astField : mergedField) {
fieldToNormalizedField.put(astField.field, executableNormalizedField);
}
}
private void updateCoordinatedToNFMap(ImmutableListMultimap.Builder<FieldCoordinates, ExecutableNormalizedField> coordinatesToNormalizedFields, ExecutableNormalizedField topLevel) {
for (String objectType : topLevel.getObjectTypeNames()) {
FieldCoordinates coordinates = FieldCoordinates.coordinates(objectType, topLevel.getFieldName());
coordinatesToNormalizedFields.put(coordinates, topLevel);
}
}
private static class FieldAndAstParent {
final Field field;
final GraphQLCompositeType astParentType;
private FieldAndAstParent(Field field, GraphQLCompositeType astParentType) {
this.field = field;
this.astParentType = astParentType;
}
}
public static class CollectNFResult {
private final Collection<ExecutableNormalizedField> children;
private final ImmutableListMultimap<ExecutableNormalizedField, FieldAndAstParent> normalizedFieldToAstFields;
public CollectNFResult(Collection<ExecutableNormalizedField> children, ImmutableListMultimap<ExecutableNormalizedField, FieldAndAstParent> normalizedFieldToAstFields) {
this.children = children;
this.normalizedFieldToAstFields = normalizedFieldToAstFields;
}
}
public CollectNFResult collectFromMergedField(FieldCollectorNormalizedQueryParams parameters,
ExecutableNormalizedField executableNormalizedField,
ImmutableList<FieldAndAstParent> mergedField,
int level) {
List<GraphQLFieldDefinition> fieldDefs = executableNormalizedField.getFieldDefinitions(parameters.getGraphQLSchema());
Set<GraphQLObjectType> possibleObjects = resolvePossibleObjects(fieldDefs, parameters.getGraphQLSchema());
if (possibleObjects.isEmpty()) {
return new CollectNFResult(ImmutableKit.emptyList(), ImmutableListMultimap.of());
}
List<CollectedField> collectedFields = new ArrayList<>();
for (FieldAndAstParent fieldAndAstParent : mergedField) {
if (fieldAndAstParent.field.getSelectionSet() == null) {
continue;
}
GraphQLFieldDefinition fieldDefinition = Introspection.getFieldDef(parameters.getGraphQLSchema(), fieldAndAstParent.astParentType, fieldAndAstParent.field.getName());
GraphQLUnmodifiedType astParentType = unwrapAll(fieldDefinition.getType());
this.collectFromSelectionSet(parameters,
fieldAndAstParent.field.getSelectionSet(),
collectedFields,
(GraphQLCompositeType) astParentType,
possibleObjects
);
}
Map<String, List<CollectedField>> fieldsByName = fieldsByResultKey(collectedFields);
ImmutableList.Builder<ExecutableNormalizedField> resultNFs = ImmutableList.builder();
ImmutableListMultimap.Builder<ExecutableNormalizedField, FieldAndAstParent> normalizedFieldToAstFields = ImmutableListMultimap.builder();
createNFs(resultNFs, parameters, fieldsByName, normalizedFieldToAstFields, level, executableNormalizedField);
return new CollectNFResult(resultNFs.build(), normalizedFieldToAstFields.build());
}
private Map<String, List<CollectedField>> fieldsByResultKey(List<CollectedField> collectedFields) {
Map<String, List<CollectedField>> fieldsByName = new LinkedHashMap<>();
for (CollectedField collectedField : collectedFields) {
fieldsByName.computeIfAbsent(collectedField.field.getResultKey(), ignored -> new ArrayList<>()).add(collectedField);
}
return fieldsByName;
}
public CollectNFResult collectFromOperation(FieldCollectorNormalizedQueryParams parameters,
OperationDefinition operationDefinition,
GraphQLObjectType rootType) {
Set<GraphQLObjectType> possibleObjects = ImmutableSet.of(rootType);
List<CollectedField> collectedFields = new ArrayList<>();
collectFromSelectionSet(parameters, operationDefinition.getSelectionSet(), collectedFields, rootType, possibleObjects);
// group by result key
Map<String, List<CollectedField>> fieldsByName = fieldsByResultKey(collectedFields);
ImmutableList.Builder<ExecutableNormalizedField> resultNFs = ImmutableList.builder();
ImmutableListMultimap.Builder<ExecutableNormalizedField, FieldAndAstParent> normalizedFieldToAstFields = ImmutableListMultimap.builder();
createNFs(resultNFs, parameters, fieldsByName, normalizedFieldToAstFields, 1, null);
return new CollectNFResult(resultNFs.build(), normalizedFieldToAstFields.build());
}
private void createNFs(ImmutableList.Builder<ExecutableNormalizedField> nfListBuilder,
FieldCollectorNormalizedQueryParams parameters,
Map<String, List<CollectedField>> fieldsByName,
ImmutableListMultimap.Builder<ExecutableNormalizedField, FieldAndAstParent> normalizedFieldToAstFields,
int level,
ExecutableNormalizedField parent) {
for (String resultKey : fieldsByName.keySet()) {
List<CollectedField> fieldsWithSameResultKey = fieldsByName.get(resultKey);
List<CollectedFieldGroup> commonParentsGroups = groupByCommonParents(fieldsWithSameResultKey);
for (CollectedFieldGroup fieldGroup : commonParentsGroups) {
ExecutableNormalizedField nf = createNF(parameters, fieldGroup, level, parent);
if (nf == null) {
continue;
}
for (CollectedField collectedField : fieldGroup.fields) {
normalizedFieldToAstFields.put(nf, new FieldAndAstParent(collectedField.field, collectedField.astTypeCondition));
}
nfListBuilder.add(nf);
}
if (commonParentsGroups.size() > 1) {
parameters.addPossibleMergers(parent, resultKey);
}
}
}
private ExecutableNormalizedField createNF(FieldCollectorNormalizedQueryParams parameters,
CollectedFieldGroup collectedFieldGroup,
int level,
ExecutableNormalizedField parent) {
Field field;
Set<GraphQLObjectType> objectTypes = collectedFieldGroup.objectTypes;
field = collectedFieldGroup.fields.iterator().next().field;
String fieldName = field.getName();
GraphQLFieldDefinition fieldDefinition = Introspection.getFieldDef(parameters.getGraphQLSchema(), objectTypes.iterator().next(), fieldName);
Map<String, Object> argumentValues = ValuesResolver.getArgumentValues(fieldDefinition.getArguments(), field.getArguments(), CoercedVariables.of(parameters.getCoercedVariableValues()), parameters.getGraphQLContext(), parameters.getLocale());
Map<String, NormalizedInputValue> normalizedArgumentValues = null;
if (parameters.getNormalizedVariableValues() != null) {
normalizedArgumentValues = ValuesResolver.getNormalizedArgumentValues(fieldDefinition.getArguments(), field.getArguments(), parameters.getNormalizedVariableValues());
}
ImmutableList<String> objectTypeNames = map(objectTypes, GraphQLObjectType::getName);
return ExecutableNormalizedField.newNormalizedField()
.alias(field.getAlias())
.resolvedArguments(argumentValues)
.normalizedArguments(normalizedArgumentValues)
.astArguments(field.getArguments())
.objectTypeNames(objectTypeNames)
.fieldName(fieldName)
.level(level)
.parent(parent)
.build();
}
private static class CollectedFieldGroup {
Set<GraphQLObjectType> objectTypes;
Set<CollectedField> fields;
public CollectedFieldGroup(Set<CollectedField> fields, Set<GraphQLObjectType> objectTypes) {
this.fields = fields;
this.objectTypes = objectTypes;
}
}
private List<CollectedFieldGroup> groupByCommonParents(Collection<CollectedField> fields) {
ImmutableSet.Builder<GraphQLObjectType> objectTypes = ImmutableSet.builder();
for (CollectedField collectedField : fields) {
objectTypes.addAll(collectedField.objectTypes);
}
Set<GraphQLObjectType> allRelevantObjects = objectTypes.build();
Map<GraphQLType, ImmutableList<CollectedField>> groupByAstParent = groupingBy(fields, fieldAndType -> fieldAndType.astTypeCondition);
if (groupByAstParent.size() == 1) {
return singletonList(new CollectedFieldGroup(ImmutableSet.copyOf(fields), allRelevantObjects));
}
ImmutableList.Builder<CollectedFieldGroup> result = ImmutableList.builder();
for (GraphQLObjectType objectType : allRelevantObjects) {
Set<CollectedField> relevantFields = filterSet(fields, field -> field.objectTypes.contains(objectType));
result.add(new CollectedFieldGroup(relevantFields, singleton(objectType)));
}
return result.build();
}
private void collectFromSelectionSet(FieldCollectorNormalizedQueryParams parameters,
SelectionSet selectionSet,
List<CollectedField> result,
GraphQLCompositeType astTypeCondition,
Set<GraphQLObjectType> possibleObjects
) {
for (Selection<?> selection : selectionSet.getSelections()) {
if (selection instanceof Field) {
collectField(parameters, result, (Field) selection, possibleObjects, astTypeCondition);
} else if (selection instanceof InlineFragment) {
collectInlineFragment(parameters, result, (InlineFragment) selection, possibleObjects, astTypeCondition);
} else if (selection instanceof FragmentSpread) {
collectFragmentSpread(parameters, result, (FragmentSpread) selection, possibleObjects);
}
}
}
private static class CollectedField {
Field field;
Set<GraphQLObjectType> objectTypes;
GraphQLCompositeType astTypeCondition;
public CollectedField(Field field, Set<GraphQLObjectType> objectTypes, GraphQLCompositeType astTypeCondition) {
this.field = field;
this.objectTypes = objectTypes;
this.astTypeCondition = astTypeCondition;
}
public boolean isAbstract() {
return GraphQLTypeUtil.isInterfaceOrUnion(astTypeCondition);
}
public boolean isConcrete() {
return GraphQLTypeUtil.isObjectType(astTypeCondition);
}
}
private void collectFragmentSpread(FieldCollectorNormalizedQueryParams parameters,
List<CollectedField> result,
FragmentSpread fragmentSpread,
Set<GraphQLObjectType> possibleObjects
) {
if (!conditionalNodes.shouldInclude(fragmentSpread,
parameters.getCoercedVariableValues(),
parameters.getGraphQLSchema(),
parameters.getGraphQLContext())) {
return;
}
FragmentDefinition fragmentDefinition = assertNotNull(parameters.getFragmentsByName().get(fragmentSpread.getName()));
if (!conditionalNodes.shouldInclude(fragmentDefinition,
parameters.getCoercedVariableValues(),
parameters.getGraphQLSchema(),
parameters.getGraphQLContext())) {
return;
}
GraphQLCompositeType newAstTypeCondition = (GraphQLCompositeType) assertNotNull(parameters.getGraphQLSchema().getType(fragmentDefinition.getTypeCondition().getName()));
Set<GraphQLObjectType> newPossibleObjects = narrowDownPossibleObjects(possibleObjects, newAstTypeCondition, parameters.getGraphQLSchema());
collectFromSelectionSet(parameters, fragmentDefinition.getSelectionSet(), result, newAstTypeCondition, newPossibleObjects);
}
private void collectInlineFragment(FieldCollectorNormalizedQueryParams parameters,
List<CollectedField> result,
InlineFragment inlineFragment,
Set<GraphQLObjectType> possibleObjects,
GraphQLCompositeType astTypeCondition
) {
if (!conditionalNodes.shouldInclude(inlineFragment, parameters.getCoercedVariableValues(), parameters.getGraphQLSchema(), parameters.getGraphQLContext())) {
return;
}
Set<GraphQLObjectType> newPossibleObjects = possibleObjects;
GraphQLCompositeType newAstTypeCondition = astTypeCondition;
if (inlineFragment.getTypeCondition() != null) {
newAstTypeCondition = (GraphQLCompositeType) parameters.getGraphQLSchema().getType(inlineFragment.getTypeCondition().getName());
newPossibleObjects = narrowDownPossibleObjects(possibleObjects, newAstTypeCondition, parameters.getGraphQLSchema());
}
collectFromSelectionSet(parameters, inlineFragment.getSelectionSet(), result, newAstTypeCondition, newPossibleObjects);
}
private void collectField(FieldCollectorNormalizedQueryParams parameters,
List<CollectedField> result,
Field field,
Set<GraphQLObjectType> possibleObjectTypes,
GraphQLCompositeType astTypeCondition
) {
if (!conditionalNodes.shouldInclude(field,
parameters.getCoercedVariableValues(),
parameters.getGraphQLSchema(),
parameters.getGraphQLContext())) {
return;
}
// this means there is actually no possible type for this field, and we are done
if (possibleObjectTypes.isEmpty()) {
return;
}
result.add(new CollectedField(field, possibleObjectTypes, astTypeCondition));
}
private Set<GraphQLObjectType> narrowDownPossibleObjects(Set<GraphQLObjectType> currentOnes,
GraphQLCompositeType typeCondition,
GraphQLSchema graphQLSchema) {
ImmutableSet<GraphQLObjectType> resolvedTypeCondition = resolvePossibleObjects(typeCondition, graphQLSchema);
if (currentOnes.isEmpty()) {
return resolvedTypeCondition;
}
// Faster intersection, as either set often has a size of 1.
return intersection(currentOnes, resolvedTypeCondition);
}
private ImmutableSet<GraphQLObjectType> resolvePossibleObjects(List<GraphQLFieldDefinition> defs, GraphQLSchema graphQLSchema) {
ImmutableSet.Builder<GraphQLObjectType> builder = ImmutableSet.builder();
for (GraphQLFieldDefinition def : defs) {
GraphQLUnmodifiedType outputType = unwrapAll(def.getType());
if (outputType instanceof GraphQLCompositeType) {
builder.addAll(resolvePossibleObjects((GraphQLCompositeType) outputType, graphQLSchema));
}
}
return builder.build();
}
private ImmutableSet<GraphQLObjectType> resolvePossibleObjects(GraphQLCompositeType type, GraphQLSchema graphQLSchema) {
if (type instanceof GraphQLObjectType) {
return ImmutableSet.of((GraphQLObjectType) type);
} else if (type instanceof GraphQLInterfaceType) {
return ImmutableSet.copyOf(graphQLSchema.getImplementations((GraphQLInterfaceType) type));
} else if (type instanceof GraphQLUnionType) {
List<GraphQLNamedOutputType> unionTypes = ((GraphQLUnionType) type).getTypes();
return ImmutableSet.copyOf(ImmutableKit.map(unionTypes, GraphQLObjectType.class::cast));
} else {
return assertShouldNeverHappen();
}
}
}