post processing on schema directive wiring afterr schema is build #2082
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,133 @@ | ||
| package graphql.schema.idl; | ||
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| import graphql.Internal; | ||
| import graphql.language.NamedNode; | ||
| import graphql.schema.GraphQLCodeRegistry; | ||
| import graphql.schema.GraphQLEnumType; | ||
| import graphql.schema.GraphQLInputObjectType; | ||
| import graphql.schema.GraphQLInterfaceType; | ||
| import graphql.schema.GraphQLNamedType; | ||
| import graphql.schema.GraphQLObjectType; | ||
| import graphql.schema.GraphQLScalarType; | ||
| import graphql.schema.GraphQLSchema; | ||
| import graphql.schema.GraphQLSchemaElement; | ||
| import graphql.schema.GraphQLTypeVisitorStub; | ||
| import graphql.schema.GraphQLUnionType; | ||
| import graphql.schema.SchemaTransformer; | ||
| import graphql.util.TraversalControl; | ||
| import graphql.util.TraverserContext; | ||
| import graphql.util.TreeTransformerUtil; | ||
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.function.Function; | ||
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| import static graphql.util.TraversalControl.CONTINUE; | ||
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| @Internal | ||
| class SchemaDirectiveWiringSchemaGeneratorPostProcessing implements SchemaGeneratorPostProcessing { | ||
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| private final SchemaGeneratorDirectiveHelper generatorDirectiveHelper = new SchemaGeneratorDirectiveHelper(); | ||
| private final TypeDefinitionRegistry typeRegistry; | ||
| private final RuntimeWiring runtimeWiring; | ||
| private final GraphQLCodeRegistry.Builder codeRegistryBuilder; | ||
| private final Map<String, Object> directiveBehaviourContext = new HashMap<>(); | ||
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| public SchemaDirectiveWiringSchemaGeneratorPostProcessing(TypeDefinitionRegistry typeRegistry, RuntimeWiring runtimeWiring, GraphQLCodeRegistry.Builder codeRegistryBuilder) { | ||
| this.typeRegistry = typeRegistry; | ||
| this.runtimeWiring = runtimeWiring; | ||
| this.codeRegistryBuilder = codeRegistryBuilder; | ||
| } | ||
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| @Override | ||
| public GraphQLSchema process(GraphQLSchema originalSchema) { | ||
| GraphQLSchema newSchema = SchemaTransformer.transformSchema(originalSchema, new Visitor()); | ||
| return newSchema.transform(builder -> { | ||
| // they could have changed the code registry so rebuild it | ||
| GraphQLCodeRegistry codeRegistry = this.codeRegistryBuilder.build(); | ||
| builder.codeRegistry(codeRegistry); | ||
| }); | ||
| } | ||
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| public class Visitor extends GraphQLTypeVisitorStub { | ||
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| private SchemaGeneratorDirectiveHelper.Parameters mkBehaviourParams() { | ||
| return new SchemaGeneratorDirectiveHelper.Parameters(typeRegistry, runtimeWiring, directiveBehaviourContext, codeRegistryBuilder); | ||
| } | ||
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| private TraversalControl changOrContinue(GraphQLSchemaElement node, GraphQLSchemaElement newNode, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (node != newNode) { | ||
| TreeTransformerUtil.changeNode(context, newNode); | ||
| } | ||
| return CONTINUE; | ||
| } | ||
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| private boolean isIntrospectionType(GraphQLNamedType type) { | ||
| return type.getName().startsWith("__"); | ||
| } | ||
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| private <T extends GraphQLNamedType> boolean notSuitable(T node, Function<T, NamedNode<?>> suitableFunc) { | ||
| if (isIntrospectionType(node)) { | ||
| return true; | ||
| } | ||
| NamedNode<?> definition = suitableFunc.apply(node); | ||
|
Member
Author
There was a problem hiding this comment. the schema directive wiring code makes an assumption we have a SDL AST definition behind it - so it's SDL only
Member
There was a problem hiding this comment. do we need to restrict it? Is it bad that we restrict it?
Member
Author
There was a problem hiding this comment. We don't want any one tweaking introspection types I think |
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| return definition == null; | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLObjectType(GraphQLObjectType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLObjectType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onObject(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLInterfaceType(GraphQLInterfaceType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLInterfaceType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onInterface(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLEnumType(GraphQLEnumType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLEnumType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onEnum(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLInputObjectType(GraphQLInputObjectType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLInputObjectType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onInputObjectType(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLScalarType(GraphQLScalarType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLScalarType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onScalar(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
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| @Override | ||
| public TraversalControl visitGraphQLUnionType(GraphQLUnionType node, TraverserContext<GraphQLSchemaElement> context) { | ||
| if (notSuitable(node, GraphQLUnionType::getDefinition)) { | ||
| return CONTINUE; | ||
| } | ||
| GraphQLSchemaElement newNode = generatorDirectiveHelper.onUnion(node, mkBehaviourParams()); | ||
| return changOrContinue(node, newNode, context); | ||
| } | ||
| } | ||
| } | ||
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prevent IDEA warnings on generics