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Merge pull request #82 from intuit/optimize-svc-metadata
optimize service metadata implementation
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src/main/java/com/intuit/graphql/orchestrator/schema/ServiceMetadataImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package com.intuit.graphql.orchestrator.schema; | ||
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| import static java.util.Objects.requireNonNull; | ||
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| import com.intuit.graphql.orchestrator.ServiceProvider; | ||
| import com.intuit.graphql.orchestrator.federation.metadata.FederationMetadata; | ||
| import com.intuit.graphql.orchestrator.schema.transform.FieldResolverContext; | ||
| import graphql.schema.FieldCoordinates; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
| import lombok.Getter; | ||
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| @Getter | ||
| public class ServiceMetadataImpl implements ServiceMetadata { | ||
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| private final Map<String, TypeMetadata> typeMetadataMap; | ||
| private final ServiceProvider serviceProvider; | ||
| private final FederationMetadata federationMetadata; | ||
| private final boolean hasInterfaceOrUnion; | ||
| private final boolean hasFieldResolverDefinition; | ||
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| private ServiceMetadataImpl(Builder builder) { | ||
| typeMetadataMap = builder.typeMetadataMap; | ||
| serviceProvider = requireNonNull(builder.serviceProvider); | ||
| federationMetadata = builder.federationMetadata; | ||
| hasInterfaceOrUnion = builder.hasInterfaceOrUnion; | ||
| hasFieldResolverDefinition = builder.hasFieldResolverDefinition; | ||
| } | ||
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| public static Builder newBuilder() { | ||
| return new Builder(); | ||
| } | ||
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| public static Builder newBuilder(ServiceMetadataImpl copy) { | ||
| Builder builder = new Builder(); | ||
| builder.typeMetadataMap = copy.getTypeMetadataMap(); | ||
| builder.serviceProvider = copy.getServiceProvider(); | ||
| builder.federationMetadata = copy.getFederationMetadata(); | ||
| builder.hasInterfaceOrUnion = copy.isHasInterfaceOrUnion(); | ||
| builder.hasFieldResolverDefinition = copy.isHasFieldResolverDefinition(); | ||
| return builder; | ||
| } | ||
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| @Override | ||
| public boolean hasType(String typeName) { | ||
| return this.typeMetadataMap.containsKey(typeName); | ||
| } | ||
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| @Override | ||
| public boolean requiresTypenameInjection() { | ||
| return this.hasInterfaceOrUnion; | ||
| } | ||
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| @Override | ||
| public boolean hasFieldResolverDirective() { | ||
| return this.hasFieldResolverDefinition; | ||
| } | ||
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| @Override | ||
| public boolean isFederationService() { | ||
| return this.serviceProvider.isFederationProvider(); | ||
| } | ||
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| @Override | ||
| public boolean shouldRemoveExternalFields() { | ||
| return this.hasFieldResolverDirective() || this.isFederationService(); | ||
| } | ||
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| @Override | ||
| public ServiceProvider getServiceProvider() { | ||
| return this.serviceProvider; | ||
| } | ||
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| @Override | ||
| public FieldResolverContext getFieldResolverContext(FieldCoordinates fieldCoordinates) { | ||
| return Optional.ofNullable(this.typeMetadataMap.get(fieldCoordinates.getTypeName())) | ||
| .map(typeMetadata -> typeMetadata.getFieldResolverContext(fieldCoordinates.getFieldName())) | ||
| .orElse(null); | ||
| } | ||
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| @Override | ||
| public boolean isOwnedByEntityExtension(FieldCoordinates fieldCoordinates) { | ||
| return this.serviceProvider.isFederationProvider() && federationMetadata.isFieldExternal(fieldCoordinates); | ||
| } | ||
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| @Override | ||
| public boolean isEntity(String typename) { | ||
| return this.isFederationService() && this.federationMetadata.isEntity(typename); | ||
| } | ||
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| @Override | ||
| public FederationMetadata getFederationServiceMetadata() { | ||
| return federationMetadata; | ||
| } | ||
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| public static final class Builder { | ||
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| private Map<String, TypeMetadata> typeMetadataMap = new HashMap<>(); | ||
| private ServiceProvider serviceProvider; | ||
| private FederationMetadata federationMetadata; | ||
| private boolean hasInterfaceOrUnion; | ||
| private boolean hasFieldResolverDefinition; | ||
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| private Builder() { | ||
| } | ||
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| public Builder typeMetadataMap(Map<String, TypeMetadata> val) { | ||
| typeMetadataMap = val; | ||
| return this; | ||
| } | ||
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| public Builder serviceProvider(ServiceProvider val) { | ||
| serviceProvider = val; | ||
| return this; | ||
| } | ||
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| public Builder federationMetadata(FederationMetadata val) { | ||
| federationMetadata = val; | ||
| return this; | ||
| } | ||
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| public Builder hasInterfaceOrUnion(boolean val) { | ||
| hasInterfaceOrUnion = val; | ||
| return this; | ||
| } | ||
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| public Builder hasFieldResolverDefinition(boolean val) { | ||
| hasFieldResolverDefinition = val; | ||
| return this; | ||
| } | ||
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| public ServiceMetadataImpl build() { | ||
| return new ServiceMetadataImpl(this); | ||
| } | ||
| } | ||
| } |
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