Examples with CONTINUE graphql.util.TraversalControl.CONTINUE used on opensource projects

Example 1 with CONTINUE

use of graphql.util.TraversalControl.CONTINUE in project graphql-java by graphql-java.

the class SchemaTransformer method traverseAndTransform.

private boolean traverseAndTransform(DummyRoot dummyRoot, Map<String, GraphQLNamedType> changedTypes, Map<String, GraphQLTypeReference> typeReferences, GraphQLTypeVisitor visitor, GraphQLCodeRegistry.Builder codeRegistry) {
    List<NodeZipper<GraphQLSchemaElement>> zippers = new LinkedList<>();
    Map<GraphQLSchemaElement, NodeZipper<GraphQLSchemaElement>> zipperByNodeAfterTraversing = new LinkedHashMap<>();
    Map<GraphQLSchemaElement, NodeZipper<GraphQLSchemaElement>> zipperByOriginalNode = new LinkedHashMap<>();
    Map<NodeZipper<GraphQLSchemaElement>, List<List<Breadcrumb<GraphQLSchemaElement>>>> breadcrumbsByZipper = new LinkedHashMap<>();
    Map<GraphQLSchemaElement, List<GraphQLSchemaElement>> reverseDependencies = new LinkedHashMap<>();
    Map<String, List<GraphQLSchemaElement>> typeRefReverseDependencies = new LinkedHashMap<>();
    TraverserVisitor<GraphQLSchemaElement> nodeTraverserVisitor = new TraverserVisitor<GraphQLSchemaElement>() {

        @Override
        public TraversalControl enter(TraverserContext<GraphQLSchemaElement> context) {
            GraphQLSchemaElement currentSchemaElement = context.thisNode();
            if (currentSchemaElement == dummyRoot) {
                return TraversalControl.CONTINUE;
            }
            if (currentSchemaElement instanceof GraphQLTypeReference) {
                GraphQLTypeReference typeRef = (GraphQLTypeReference) currentSchemaElement;
                typeReferences.put(typeRef.getName(), typeRef);
            }
            NodeZipper<GraphQLSchemaElement> nodeZipper = new NodeZipper<>(currentSchemaElement, context.getBreadcrumbs(), SCHEMA_ELEMENT_ADAPTER);
            context.setVar(NodeZipper.class, nodeZipper);
            context.setVar(NodeAdapter.class, SCHEMA_ELEMENT_ADAPTER);
            int zippersBefore = zippers.size();
            TraversalControl result = currentSchemaElement.accept(context, visitor);
            // detection if the node was changed
            if (zippersBefore + 1 == zippers.size()) {
                nodeZipper = zippers.get(zippers.size() - 1);
                if (context.originalThisNode() instanceof GraphQLNamedType && context.isChanged()) {
                    GraphQLNamedType originalNamedType = (GraphQLNamedType) context.originalThisNode();
                    GraphQLNamedType changedNamedType = (GraphQLNamedType) context.thisNode();
                    if (!originalNamedType.getName().equals(changedNamedType.getName())) {
                        changedTypes.put(originalNamedType.getName(), changedNamedType);
                    }
                }
            }
            zipperByOriginalNode.put(context.originalThisNode(), nodeZipper);
            if (context.isDeleted()) {
                zipperByNodeAfterTraversing.put(context.originalThisNode(), nodeZipper);
            } else {
                zipperByNodeAfterTraversing.put(context.thisNode(), nodeZipper);
            }
            breadcrumbsByZipper.put(nodeZipper, new ArrayList<>());
            breadcrumbsByZipper.get(nodeZipper).add(context.getBreadcrumbs());
            if (nodeZipper.getModificationType() != NodeZipper.ModificationType.DELETE) {
                reverseDependencies.computeIfAbsent(context.thisNode(), ign -> new ArrayList<>()).add(context.getParentNode());
                if (context.originalThisNode() instanceof GraphQLTypeReference) {
                    String typeName = ((GraphQLTypeReference) context.originalThisNode()).getName();
                    typeRefReverseDependencies.computeIfAbsent(typeName, ign -> new ArrayList<>()).add(context.getParentNode());
                }
            }
            return result;
        }

        @Override
        public TraversalControl leave(TraverserContext<GraphQLSchemaElement> context) {
            return TraversalControl.CONTINUE;
        }

        @Override
        public TraversalControl backRef(TraverserContext<GraphQLSchemaElement> context) {
            NodeZipper<GraphQLSchemaElement> zipper = zipperByOriginalNode.get(context.thisNode());
            breadcrumbsByZipper.get(zipper).add(context.getBreadcrumbs());
            if (zipper.getModificationType() == DELETE) {
                return CONTINUE;
            }
            visitor.visitBackRef(context);
            List<GraphQLSchemaElement> reverseDependenciesForCurNode = reverseDependencies.get(zipper.getCurNode());
            assertNotNull(reverseDependenciesForCurNode);
            reverseDependenciesForCurNode.add(context.getParentNode());
            return TraversalControl.CONTINUE;
        }
    };
    Traverser<GraphQLSchemaElement> traverser = Traverser.depthFirstWithNamedChildren(SCHEMA_ELEMENT_ADAPTER::getNamedChildren, zippers, null);
    if (codeRegistry != null) {
        traverser.rootVar(GraphQLCodeRegistry.Builder.class, codeRegistry);
    }
    traverser.traverse(dummyRoot, nodeTraverserVisitor);
    List<List<GraphQLSchemaElement>> stronglyConnectedTopologicallySorted = getStronglyConnectedComponentsTopologicallySorted(reverseDependencies, typeRefReverseDependencies);
    return zipUpToDummyRoot(zippers, stronglyConnectedTopologicallySorted, breadcrumbsByZipper, zipperByNodeAfterTraversing);
}

Example 2 with CONTINUE

use of graphql.util.TraversalControl.CONTINUE in project graphql-java by graphql-java.

the class Anonymizer method rewriteQuery.

private static String rewriteQuery(String query, GraphQLSchema schema, Map<GraphQLNamedSchemaElement, String> newNames, Map<String, Object> variables) {
    AtomicInteger fragmentCounter = new AtomicInteger(1);
    AtomicInteger variableCounter = new AtomicInteger(1);
    Map<Node, String> astNodeToNewName = new LinkedHashMap<>();
    Map<String, String> variableNames = new LinkedHashMap<>();
    Map<Field, GraphQLFieldDefinition> fieldToFieldDefinition = new LinkedHashMap<>();
    Document document = new Parser().parseDocument(query);
    assertUniqueOperation(document);
    QueryTraverser queryTraverser = QueryTraverser.newQueryTraverser().document(document).schema(schema).variables(variables).build();
    queryTraverser.visitDepthFirst(new QueryVisitor() {

        @Override
        public void visitField(QueryVisitorFieldEnvironment env) {
            if (env.isTypeNameIntrospectionField()) {
                return;
            }
            fieldToFieldDefinition.put(env.getField(), env.getFieldDefinition());
            String newName = assertNotNull(newNames.get(env.getFieldDefinition()));
            Field field = env.getField();
            astNodeToNewName.put(field, newName);
            List<Directive> directives = field.getDirectives();
            for (Directive directive : directives) {
                // this is a directive definition
                GraphQLDirective directiveDefinition = assertNotNull(schema.getDirective(directive.getName()), () -> format("%s directive definition not found ", directive.getName()));
                String directiveName = directiveDefinition.getName();
                String newDirectiveName = assertNotNull(newNames.get(directiveDefinition), () -> format("No new name found for directive %s", directiveName));
                astNodeToNewName.put(directive, newDirectiveName);
                for (Argument argument : directive.getArguments()) {
                    GraphQLArgument argumentDefinition = directiveDefinition.getArgument(argument.getName());
                    String newArgumentName = assertNotNull(newNames.get(argumentDefinition), () -> format("%s no new name found for directive argument %s %s", directiveName, argument.getName()));
                    astNodeToNewName.put(argument, newArgumentName);
                    visitDirectiveArgumentValues(directive, argument.getValue());
                }
            }
        }

        private void visitDirectiveArgumentValues(Directive directive, Value value) {
            if (value instanceof VariableReference) {
                String name = ((VariableReference) value).getName();
                if (!variableNames.containsKey(name)) {
                    String newName = "var" + variableCounter.getAndIncrement();
                    variableNames.put(name, newName);
                }
            }
        }

        @Override
        public void visitInlineFragment(QueryVisitorInlineFragmentEnvironment queryVisitorInlineFragmentEnvironment) {
        }

        @Override
        public TraversalControl visitArgumentValue(QueryVisitorFieldArgumentValueEnvironment environment) {
            QueryVisitorFieldArgumentInputValue argumentInputValue = environment.getArgumentInputValue();
            if (argumentInputValue.getValue() instanceof VariableReference) {
                String name = ((VariableReference) argumentInputValue.getValue()).getName();
                if (!variableNames.containsKey(name)) {
                    String newName = "var" + variableCounter.getAndIncrement();
                    variableNames.put(name, newName);
                }
            }
            return CONTINUE;
        }

        @Override
        public void visitFragmentSpread(QueryVisitorFragmentSpreadEnvironment queryVisitorFragmentSpreadEnvironment) {
            FragmentDefinition fragmentDefinition = queryVisitorFragmentSpreadEnvironment.getFragmentDefinition();
            String newName;
            if (!astNodeToNewName.containsKey(fragmentDefinition)) {
                newName = "Fragment" + fragmentCounter.getAndIncrement();
                astNodeToNewName.put(fragmentDefinition, newName);
            } else {
                newName = astNodeToNewName.get(fragmentDefinition);
            }
            astNodeToNewName.put(queryVisitorFragmentSpreadEnvironment.getFragmentSpread(), newName);
        }

        @Override
        public TraversalControl visitArgument(QueryVisitorFieldArgumentEnvironment environment) {
            String newName = assertNotNull(newNames.get(environment.getGraphQLArgument()));
            astNodeToNewName.put(environment.getArgument(), newName);
            return CONTINUE;
        }
    });
    AtomicInteger stringValueCounter = new AtomicInteger(1);
    AtomicInteger intValueCounter = new AtomicInteger(1);
    AstTransformer astTransformer = new AstTransformer();
    AtomicInteger aliasCounter = new AtomicInteger(1);
    AtomicInteger defaultStringValueCounter = new AtomicInteger(1);
    AtomicInteger defaultIntValueCounter = new AtomicInteger(1);
    Document newDocument = (Document) astTransformer.transform(document, new NodeVisitorStub() {

        @Override
        public TraversalControl visitDirective(Directive directive, TraverserContext<Node> context) {
            String newName = assertNotNull(astNodeToNewName.get(directive));
            GraphQLDirective directiveDefinition = schema.getDirective(directive.getName());
            context.setVar(GraphQLDirective.class, directiveDefinition);
            return changeNode(context, directive.transform(builder -> builder.name(newName)));
        }

        @Override
        public TraversalControl visitOperationDefinition(OperationDefinition node, TraverserContext<Node> context) {
            if (node.getName() != null) {
                return changeNode(context, node.transform(builder -> builder.name("operation")));
            } else {
                return CONTINUE;
            }
        }

        @Override
        public TraversalControl visitField(Field field, TraverserContext<Node> context) {
            String newAlias = null;
            if (field.getAlias() != null) {
                newAlias = "alias" + aliasCounter.getAndIncrement();
            }
            String newName;
            if (field.getName().equals(Introspection.TypeNameMetaFieldDef.getName())) {
                newName = Introspection.TypeNameMetaFieldDef.getName();
            } else {
                newName = assertNotNull(astNodeToNewName.get(field));
                context.setVar(GraphQLFieldDefinition.class, assertNotNull(fieldToFieldDefinition.get(field)));
            }
            String finalNewAlias = newAlias;
            return changeNode(context, field.transform(builder -> builder.name(newName).alias(finalNewAlias)));
        }

        @Override
        public TraversalControl visitVariableDefinition(VariableDefinition node, TraverserContext<Node> context) {
            String newName = assertNotNull(variableNames.get(node.getName()));
            VariableDefinition newNode = node.transform(builder -> {
                builder.name(newName).comments(Collections.emptyList());
                // convert variable language type to renamed language type
                TypeName typeName = TypeUtil.unwrapAll(node.getType());
                GraphQLNamedType originalType = schema.getTypeAs(typeName.getName());
                // has the type name changed? (standard scalars such as String don't change)
                if (newNames.containsKey(originalType)) {
                    String newTypeName = newNames.get(originalType);
                    builder.type(replaceTypeName(node.getType(), newTypeName));
                }
                if (node.getDefaultValue() != null) {
                    Value<?> defaultValueLiteral = node.getDefaultValue();
                    GraphQLType graphQLType = fromTypeToGraphQLType(node.getType(), schema);
                    builder.defaultValue(replaceValue(defaultValueLiteral, (GraphQLInputType) graphQLType, newNames, defaultStringValueCounter, defaultIntValueCounter));
                }
            });
            return changeNode(context, newNode);
        }

        @Override
        public TraversalControl visitVariableReference(VariableReference node, TraverserContext<Node> context) {
            String newName = assertNotNull(variableNames.get(node.getName()), () -> format("No new variable name found for %s", node.getName()));
            return changeNode(context, node.transform(builder -> builder.name(newName)));
        }

        @Override
        public TraversalControl visitFragmentDefinition(FragmentDefinition node, TraverserContext<Node> context) {
            String newName = assertNotNull(astNodeToNewName.get(node));
            GraphQLType currentCondition = assertNotNull(schema.getType(node.getTypeCondition().getName()));
            String newCondition = newNames.get(currentCondition);
            return changeNode(context, node.transform(builder -> builder.name(newName).typeCondition(new TypeName(newCondition))));
        }

        @Override
        public TraversalControl visitInlineFragment(InlineFragment node, TraverserContext<Node> context) {
            GraphQLType currentCondition = assertNotNull(schema.getType(node.getTypeCondition().getName()));
            String newCondition = newNames.get(currentCondition);
            return changeNode(context, node.transform(builder -> builder.typeCondition(new TypeName(newCondition))));
        }

        @Override
        public TraversalControl visitFragmentSpread(FragmentSpread node, TraverserContext<Node> context) {
            String newName = assertNotNull(astNodeToNewName.get(node));
            return changeNode(context, node.transform(builder -> builder.name(newName)));
        }

        @Override
        public TraversalControl visitArgument(Argument argument, TraverserContext<Node> context) {
            GraphQLArgument graphQLArgumentDefinition;
            // An argument is either from a applied query directive or from a field
            if (context.getVarFromParents(GraphQLDirective.class) != null) {
                GraphQLDirective directiveDefinition = context.getVarFromParents(GraphQLDirective.class);
                graphQLArgumentDefinition = directiveDefinition.getArgument(argument.getName());
            } else {
                GraphQLFieldDefinition graphQLFieldDefinition = assertNotNull(context.getVarFromParents(GraphQLFieldDefinition.class));
                graphQLArgumentDefinition = graphQLFieldDefinition.getArgument(argument.getName());
            }
            GraphQLInputType argumentType = graphQLArgumentDefinition.getType();
            String newName = assertNotNull(astNodeToNewName.get(argument));
            Value newValue = replaceValue(argument.getValue(), argumentType, newNames, defaultStringValueCounter, defaultIntValueCounter);
            return changeNode(context, argument.transform(builder -> builder.name(newName).value(newValue)));
        }
    });
    return AstPrinter.printAstCompact(newDocument);
}

Example 3 with CONTINUE

use of graphql.util.TraversalControl.CONTINUE in project graphql-java by graphql-java.

the class SchemaTransformExamples method trasnformSchema.

void trasnformSchema() {
    GraphQLTypeVisitorStub visitor = new GraphQLTypeVisitorStub() {

        @Override
        public TraversalControl visitGraphQLObjectType(GraphQLObjectType objectType, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLCodeRegistry.Builder codeRegistry = context.getVarFromParents(GraphQLCodeRegistry.Builder.class);
            // we need to change __XXX introspection types to have directive extensions
            if (someConditionalLogic(objectType)) {
                GraphQLObjectType newObjectType = buildChangedObjectType(objectType, codeRegistry);
                return changeNode(context, newObjectType);
            }
            return CONTINUE;
        }

        private boolean someConditionalLogic(GraphQLObjectType objectType) {
            // up to you to decide what causes a change, perhaps a directive is on the element
            return objectType.hasDirective("specialDirective");
        }

        private GraphQLObjectType buildChangedObjectType(GraphQLObjectType objectType, GraphQLCodeRegistry.Builder codeRegistry) {
            GraphQLFieldDefinition newField = GraphQLFieldDefinition.newFieldDefinition().name("newField").type(Scalars.GraphQLString).build();
            GraphQLObjectType newObjectType = objectType.transform(builder -> builder.field(newField));
            DataFetcher newDataFetcher = dataFetchingEnvironment -> {
                return "someValueForTheNewField";
            };
            FieldCoordinates coordinates = FieldCoordinates.coordinates(objectType.getName(), newField.getName());
            codeRegistry.dataFetcher(coordinates, newDataFetcher);
            return newObjectType;
        }
    };
    GraphQLSchema newSchema = SchemaTransformer.transformSchema(schema, visitor);
}

Example 4 with CONTINUE

use of graphql.util.TraversalControl.CONTINUE in project graphql-java by graphql-java.

the class Anonymizer method recordNewNamesForSchema.

public static Map<GraphQLNamedSchemaElement, String> recordNewNamesForSchema(GraphQLSchema schema) {
    AtomicInteger objectCounter = new AtomicInteger(1);
    AtomicInteger inputObjectCounter = new AtomicInteger(1);
    AtomicInteger inputObjectFieldCounter = new AtomicInteger(1);
    AtomicInteger fieldCounter = new AtomicInteger(1);
    AtomicInteger scalarCounter = new AtomicInteger(1);
    AtomicInteger directiveCounter = new AtomicInteger(1);
    AtomicInteger argumentCounter = new AtomicInteger(1);
    AtomicInteger interfaceCounter = new AtomicInteger(1);
    AtomicInteger unionCounter = new AtomicInteger(1);
    AtomicInteger enumCounter = new AtomicInteger(1);
    AtomicInteger enumValueCounter = new AtomicInteger(1);
    Map<GraphQLNamedSchemaElement, String> newNameMap = new LinkedHashMap<>();
    Map<String, String> directivesOriginalToNewNameMap = new HashMap<>();
    // DirectiveName.argumentName -> newArgumentName
    Map<String, String> seenArgumentsOnDirectivesMap = new HashMap<>();
    Map<String, List<GraphQLImplementingType>> interfaceToImplementations = new SchemaUtil().groupImplementationsForInterfacesAndObjects(schema);
    Consumer<GraphQLNamedSchemaElement> recordDirectiveName = (graphQLDirective) -> {
        String directiveName = graphQLDirective.getName();
        if (directivesOriginalToNewNameMap.containsKey(directiveName)) {
            newNameMap.put(graphQLDirective, directivesOriginalToNewNameMap.get(directiveName));
            return;
        }
        String newName = "Directive" + directiveCounter.getAndIncrement();
        newNameMap.put(graphQLDirective, newName);
        directivesOriginalToNewNameMap.put(directiveName, newName);
    };
    BiConsumer<GraphQLNamedSchemaElement, String> recordDirectiveArgumentName = (graphQLArgument, directiveArgumentKey) -> {
        if (seenArgumentsOnDirectivesMap.containsKey(directiveArgumentKey)) {
            newNameMap.put(graphQLArgument, seenArgumentsOnDirectivesMap.get(directiveArgumentKey));
            return;
        }
        String newName = "argument" + argumentCounter.getAndIncrement();
        newNameMap.put(graphQLArgument, newName);
        seenArgumentsOnDirectivesMap.put(directiveArgumentKey, newName);
    };
    GraphQLTypeVisitor visitor = new GraphQLTypeVisitorStub() {

        @Override
        public TraversalControl visitGraphQLArgument(GraphQLArgument graphQLArgument, TraverserContext<GraphQLSchemaElement> context) {
            String curName = graphQLArgument.getName();
            GraphQLSchemaElement parentNode = context.getParentNode();
            if (parentNode instanceof GraphQLDirective) {
                // if we already went over the argument for this directive name, no need to add new names
                String directiveArgumentKey = ((GraphQLDirective) parentNode).getName() + graphQLArgument.getName();
                recordDirectiveArgumentName.accept(graphQLArgument, directiveArgumentKey);
                return CONTINUE;
            }
            if (!(parentNode instanceof GraphQLFieldDefinition)) {
                String newName = "argument" + argumentCounter.getAndIncrement();
                newNameMap.put(graphQLArgument, newName);
                return CONTINUE;
            }
            GraphQLFieldDefinition fieldDefinition = (GraphQLFieldDefinition) parentNode;
            String fieldName = fieldDefinition.getName();
            GraphQLImplementingType implementingType = (GraphQLImplementingType) context.getParentContext().getParentNode();
            Set<GraphQLFieldDefinition> matchingInterfaceFieldDefinitions = getSameFields(fieldName, implementingType.getName(), interfaceToImplementations, schema);
            String newName;
            if (matchingInterfaceFieldDefinitions.size() == 0) {
                newName = "argument" + argumentCounter.getAndIncrement();
            } else {
                List<GraphQLArgument> matchingArgumentDefinitions = getMatchingArgumentDefinitions(curName, matchingInterfaceFieldDefinitions);
                if (matchingArgumentDefinitions.size() == 0) {
                    newName = "argument" + argumentCounter.getAndIncrement();
                } else {
                    if (newNameMap.containsKey(matchingArgumentDefinitions.get(0))) {
                        newName = newNameMap.get(matchingArgumentDefinitions.get(0));
                    } else {
                        newName = "argument" + argumentCounter.getAndIncrement();
                        for (GraphQLArgument argument : matchingArgumentDefinitions) {
                            newNameMap.put(argument, newName);
                        }
                    }
                }
            }
            newNameMap.put(graphQLArgument, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLAppliedDirectiveArgument(GraphQLAppliedDirectiveArgument graphQLArgument, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLSchemaElement parentNode = context.getParentNode();
            if (parentNode instanceof GraphQLAppliedDirective) {
                // if we already went over the argument for this directive name, no need to add new names
                String directiveArgumentKey = ((GraphQLAppliedDirective) parentNode).getName() + graphQLArgument.getName();
                recordDirectiveArgumentName.accept(graphQLArgument, directiveArgumentKey);
            }
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLDirective(GraphQLDirective graphQLDirective, TraverserContext<GraphQLSchemaElement> context) {
            if (DirectiveInfo.isGraphqlSpecifiedDirective(graphQLDirective)) {
                return TraversalControl.ABORT;
            }
            recordDirectiveName.accept(graphQLDirective);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLAppliedDirective(GraphQLAppliedDirective graphQLAppliedDirective, TraverserContext<GraphQLSchemaElement> context) {
            if (DirectiveInfo.isGraphqlSpecifiedDirective(graphQLAppliedDirective.getName())) {
                return TraversalControl.ABORT;
            }
            recordDirectiveName.accept(graphQLAppliedDirective);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLInterfaceType(GraphQLInterfaceType graphQLInterfaceType, TraverserContext<GraphQLSchemaElement> context) {
            if (Introspection.isIntrospectionTypes(graphQLInterfaceType)) {
                return TraversalControl.ABORT;
            }
            String newName = "Interface" + interfaceCounter.getAndIncrement();
            newNameMap.put(graphQLInterfaceType, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLEnumType(GraphQLEnumType graphQLEnumType, TraverserContext<GraphQLSchemaElement> context) {
            if (Introspection.isIntrospectionTypes(graphQLEnumType)) {
                return TraversalControl.ABORT;
            }
            String newName = "Enum" + enumCounter.getAndIncrement();
            newNameMap.put(graphQLEnumType, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLEnumValueDefinition(GraphQLEnumValueDefinition enumValueDefinition, TraverserContext<GraphQLSchemaElement> context) {
            String newName = "EnumValue" + enumValueCounter.getAndIncrement();
            newNameMap.put(enumValueDefinition, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLFieldDefinition(GraphQLFieldDefinition graphQLFieldDefinition, TraverserContext<GraphQLSchemaElement> context) {
            String fieldName = graphQLFieldDefinition.getName();
            GraphQLImplementingType parentNode = (GraphQLImplementingType) context.getParentNode();
            Set<GraphQLFieldDefinition> sameFields = getSameFields(fieldName, parentNode.getName(), interfaceToImplementations, schema);
            String newName;
            if (sameFields.size() == 0) {
                newName = "field" + fieldCounter.getAndIncrement();
            } else {
                if (newNameMap.containsKey(sameFields.iterator().next())) {
                    newName = newNameMap.get(sameFields.iterator().next());
                } else {
                    newName = "field" + fieldCounter.getAndIncrement();
                    for (GraphQLFieldDefinition fieldDefinition : sameFields) {
                        newNameMap.put(fieldDefinition, newName);
                    }
                }
            }
            newNameMap.put(graphQLFieldDefinition, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLInputObjectField(GraphQLInputObjectField graphQLInputObjectField, TraverserContext<GraphQLSchemaElement> context) {
            String newName = "inputField" + inputObjectFieldCounter.getAndIncrement();
            newNameMap.put(graphQLInputObjectField, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLInputObjectType(GraphQLInputObjectType graphQLInputObjectType, TraverserContext<GraphQLSchemaElement> context) {
            if (Introspection.isIntrospectionTypes(graphQLInputObjectType)) {
                return TraversalControl.ABORT;
            }
            String newName = "InputObject" + inputObjectCounter.getAndIncrement();
            newNameMap.put(graphQLInputObjectType, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLObjectType(GraphQLObjectType graphQLObjectType, TraverserContext<GraphQLSchemaElement> context) {
            if (Introspection.isIntrospectionTypes(graphQLObjectType)) {
                return TraversalControl.ABORT;
            }
            String newName = "Object" + objectCounter.getAndIncrement();
            newNameMap.put(graphQLObjectType, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLScalarType(GraphQLScalarType graphQLScalarType, TraverserContext<GraphQLSchemaElement> context) {
            if (ScalarInfo.isGraphqlSpecifiedScalar(graphQLScalarType)) {
                return TraversalControl.ABORT;
            }
            String newName = "Scalar" + scalarCounter.getAndIncrement();
            newNameMap.put(graphQLScalarType, newName);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLUnionType(GraphQLUnionType graphQLUnionType, TraverserContext<GraphQLSchemaElement> context) {
            if (Introspection.isIntrospectionTypes(graphQLUnionType)) {
                return TraversalControl.ABORT;
            }
            String newName = "Union" + unionCounter.getAndIncrement();
            newNameMap.put(graphQLUnionType, newName);
            return CONTINUE;
        }
    };
    SchemaTransformer.transformSchema(schema, visitor);
    return newNameMap;
}

Example 5 with CONTINUE

use of graphql.util.TraversalControl.CONTINUE in project graphql-java by graphql-java.

the class SchemaUsageSupport method getSchemaUsage.

/**
 * This builds out {@link SchemaUsage} statistics about the usage of types and directives within a schema
 *
 * @param schema the schema to check
 *
 * @return usage stats
 */
public static SchemaUsage getSchemaUsage(GraphQLSchema schema) {
    assertNotNull(schema);
    SchemaUsage.Builder builder = new SchemaUsage.Builder();
    GraphQLTypeVisitor visitor = new GraphQLTypeVisitorStub() {

        private BiFunction<String, Integer, Integer> incCount() {
            return (k, v) -> v == null ? 1 : v + 1;
        }

        private void recordBackReference(GraphQLNamedSchemaElement referencedElement, GraphQLSchemaElement referencingElement) {
            String referencedElementName = referencedElement.getName();
            if (referencingElement instanceof GraphQLType) {
                String typeName = (GraphQLTypeUtil.unwrapAll((GraphQLType) referencingElement)).getName();
                builder.elementBackReferences.computeIfAbsent(referencedElementName, k -> new HashSet<>()).add(typeName);
            }
            if (referencingElement instanceof GraphQLDirective) {
                String typeName = ((GraphQLDirective) referencingElement).getName();
                builder.elementBackReferences.computeIfAbsent(referencedElementName, k -> new HashSet<>()).add(typeName);
            }
        }

        private void memberInterfaces(GraphQLNamedType containingType, List<GraphQLNamedOutputType> members) {
            for (GraphQLNamedOutputType member : members) {
                builder.interfaceReferenceCount.compute(member.getName(), incCount());
                builder.interfaceImplementors.computeIfAbsent(member.getName(), k -> new HashSet<>()).add(containingType.getName());
                recordBackReference(containingType, member);
            }
        }

        @Override
        public TraversalControl visitGraphQLArgument(GraphQLArgument node, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLNamedType inputType = GraphQLTypeUtil.unwrapAll(node.getType());
            builder.argReferenceCount.compute(inputType.getName(), incCount());
            GraphQLSchemaElement parentElement = context.getParentNode();
            if (parentElement instanceof GraphQLFieldDefinition) {
                parentElement = context.getParentContext().getParentNode();
            }
            recordBackReference(inputType, parentElement);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLFieldDefinition(GraphQLFieldDefinition node, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLNamedType fieldType = GraphQLTypeUtil.unwrapAll(node.getType());
            builder.fieldReferenceCounts.compute(fieldType.getName(), incCount());
            builder.outputFieldReferenceCounts.compute(fieldType.getName(), incCount());
            recordBackReference(fieldType, context.getParentNode());
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLInputObjectField(GraphQLInputObjectField node, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLNamedType fieldType = GraphQLTypeUtil.unwrapAll(node.getType());
            builder.fieldReferenceCounts.compute(fieldType.getName(), incCount());
            builder.inputFieldReferenceCounts.compute(fieldType.getName(), incCount());
            recordBackReference(fieldType, context.getParentNode());
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLDirective(GraphQLDirective directive, TraverserContext<GraphQLSchemaElement> context) {
            GraphQLSchemaElement parentElement = context.getParentNode();
            if (parentElement != null) {
                // a null parent is a directive definition
                // we record a count if the directive is applied to something - not just defined
                builder.directiveReferenceCount.compute(directive.getName(), incCount());
            }
            if (parentElement instanceof GraphQLArgument) {
                context = context.getParentContext();
                parentElement = context.getParentNode();
            }
            if (parentElement instanceof GraphQLFieldDefinition) {
                context = context.getParentContext();
                parentElement = context.getParentNode();
            }
            if (parentElement instanceof GraphQLInputObjectField) {
                context = context.getParentContext();
                parentElement = context.getParentNode();
            }
            recordBackReference(directive, parentElement);
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLUnionType(GraphQLUnionType unionType, TraverserContext<GraphQLSchemaElement> context) {
            List<GraphQLNamedOutputType> members = unionType.getTypes();
            for (GraphQLNamedOutputType member : members) {
                builder.unionReferenceCount.compute(member.getName(), incCount());
                recordBackReference(unionType, member);
            }
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLInterfaceType(GraphQLInterfaceType interfaceType, TraverserContext<GraphQLSchemaElement> context) {
            memberInterfaces(interfaceType, interfaceType.getInterfaces());
            return CONTINUE;
        }

        @Override
        public TraversalControl visitGraphQLObjectType(GraphQLObjectType objectType, TraverserContext<GraphQLSchemaElement> context) {
            memberInterfaces(objectType, objectType.getInterfaces());
            return CONTINUE;
        }
    };
    new SchemaTraverser().depthFirstFullSchema(visitor, schema);
    return builder.build();
}