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Normalize map keys for shapes targeted by HeaderPrefix during deseria…
…lization.
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90 changes: 90 additions & 0 deletions
90
...hy-go-codegen/src/main/java/software/amazon/smithy/go/codegen/knowledge/GoUsageIndex.java
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| /* | ||
| * Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://aws.amazon.com/apache2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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 software.amazon.smithy.go.codegen.knowledge; | ||
|
|
||
| import java.util.HashSet; | ||
| import java.util.Set; | ||
| import java.util.stream.Collectors; | ||
| import software.amazon.smithy.model.Model; | ||
| import software.amazon.smithy.model.knowledge.KnowledgeIndex; | ||
| import software.amazon.smithy.model.knowledge.OperationIndex; | ||
| import software.amazon.smithy.model.knowledge.TopDownIndex; | ||
| import software.amazon.smithy.model.neighbor.RelationshipDirection; | ||
| import software.amazon.smithy.model.neighbor.Walker; | ||
| import software.amazon.smithy.model.shapes.ServiceShape; | ||
| import software.amazon.smithy.model.shapes.Shape; | ||
| import software.amazon.smithy.model.shapes.ShapeId; | ||
| import software.amazon.smithy.model.shapes.StructureShape; | ||
| import software.amazon.smithy.model.shapes.ToShapeId; | ||
|
|
||
| /** | ||
| * Provides {@link KnowledgeIndex} of how shapes are used in the model. | ||
| */ | ||
| public class GoUsageIndex implements KnowledgeIndex { | ||
| private final Model model; | ||
| private final Walker walker; | ||
|
|
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| private final Set<ShapeId> inputShapes = new HashSet<>(); | ||
| private final Set<ShapeId> outputShapes = new HashSet<>(); | ||
|
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| public GoUsageIndex(Model model) { | ||
| this.model = model; | ||
| this.walker = new Walker(model); | ||
|
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| TopDownIndex topDownIndex = TopDownIndex.of(model); | ||
| OperationIndex operationIndex = OperationIndex.of(model); | ||
|
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| model.shapes(ServiceShape.class).forEach(serviceShape -> { | ||
| topDownIndex.getContainedOperations(serviceShape).forEach(operationShape -> { | ||
| StructureShape inputShape = operationIndex.getInput(operationShape).get(); | ||
| StructureShape outputShape = operationIndex.getOutput(operationShape).get(); | ||
|
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| inputShapes.addAll(walker.walkShapes(inputShape, relationship -> | ||
| relationship.getDirection() == RelationshipDirection.DIRECTED).stream() | ||
| .map(Shape::toShapeId).collect(Collectors.toList())); | ||
|
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| outputShapes.addAll(walker.walkShapes(outputShape, relationship -> | ||
| relationship.getDirection() == RelationshipDirection.DIRECTED).stream() | ||
| .map(Shape::toShapeId).collect(Collectors.toList())); | ||
|
|
||
| }); | ||
| }); | ||
| } | ||
|
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| /** | ||
| * Returns whether shape is used as part of an input to an operation. | ||
| * | ||
| * @param shape the shape | ||
| * @return whether the shape is used as input. | ||
| */ | ||
| public boolean isUsedForInput(ToShapeId shape) { | ||
| return inputShapes.contains(shape.toShapeId()); | ||
| } | ||
|
|
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| /** | ||
| * Returns whether shape is used as output of an operation. | ||
| * | ||
| * @param shape the shape | ||
| * @return whether the shape is used as input. | ||
| */ | ||
| public boolean isUsedForOutput(ToShapeId shape) { | ||
| return outputShapes.contains(shape.toShapeId()); | ||
| } | ||
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| public static GoUsageIndex of(Model model) { | ||
| return model.getKnowledge(GoUsageIndex.class, GoUsageIndex::new); | ||
| } | ||
| } |