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package com.hltech.vaunt.generator.domain.representation; |
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import com.fasterxml.jackson.databind.JsonMappingException; |
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import com.google.common.collect.ArrayListMultimap; |
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import com.google.common.collect.Multimap; |
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import com.hltech.vaunt.core.VauntSerializer; |
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import com.hltech.vaunt.core.domain.model.Capabilities; |
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import com.hltech.vaunt.core.domain.model.Contract; |
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import com.hltech.vaunt.core.domain.model.Expectations; |
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import com.hltech.vaunt.core.domain.model.Service; |
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import com.hltech.vaunt.generator.domain.representation.annotation.Consumer; |
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import com.hltech.vaunt.generator.domain.representation.annotation.Consumers; |
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import com.hltech.vaunt.generator.domain.representation.annotation.Provider; |
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import com.hltech.vaunt.generator.domain.representation.annotation.Providers; |
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import lombok.RequiredArgsConstructor; |
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import org.reflections.Reflections; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.List; |
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@RequiredArgsConstructor |
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public class RepresentationExtractor { |
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private final VauntSerializer serializer; |
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public Service extractServiceRepresentation(String packageRoot, String serviceName) throws JsonMappingException { |
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return new Service(serviceName, extractCapabilities(packageRoot), extractExpectations(packageRoot)); |
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} |
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private Capabilities extractCapabilities(String packageRoot) { |
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List<Contract> providerContracts = new ArrayList<>(); |
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new Reflections(packageRoot).getTypesAnnotatedWith(Providers.class) |
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.forEach(providerMessage -> Arrays.stream(providerMessage.getAnnotation(Providers.class).value()) |
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.forEach(providerAnnotation -> providerContracts.add( |
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extractProviderContract(providerMessage, providerAnnotation)))); |
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new Reflections(packageRoot).getTypesAnnotatedWith(Provider.class) |
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.forEach(providerMessage -> providerContracts.add( |
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extractProviderContract(providerMessage, providerMessage.getAnnotation(Provider.class)))); |
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return new Capabilities(providerContracts); |
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} |
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private Expectations extractExpectations(String packageRoot) { |
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Multimap<String, Contract> providerNameToContracts = ArrayListMultimap.create(); |
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new Reflections(packageRoot).getTypesAnnotatedWith(Consumers.class) |
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.forEach(consumerMessage -> Arrays.stream(consumerMessage.getAnnotation(Consumers.class).value()) |
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.forEach(consumerAnnotation -> providerNameToContracts.put( |
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consumerAnnotation.providerName(), |
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extractConsumerContract(consumerMessage, consumerAnnotation)))); |
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new Reflections(packageRoot).getTypesAnnotatedWith(Consumer.class) |
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.forEach(consumerMessage -> providerNameToContracts.put( |
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consumerMessage.getAnnotation(Consumer.class).providerName(), |
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extractConsumerContract(consumerMessage, consumerMessage.getAnnotation(Consumer.class)))); |
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return new Expectations(providerNameToContracts); |
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} |
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private Contract extractProviderContract(Class<?> providerMessage, Provider providerAnnotation) { |
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try { |
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return new Contract( |
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providerAnnotation.destinationType(), |
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providerAnnotation.destinationName(), |
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serializer.generateSchema(providerMessage)); |
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} catch (JsonMappingException ex) { |
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throw new RuntimeException("Unable to extract contract for given provider", ex); |
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} |
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} |
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private Contract extractConsumerContract(Class<?> consumerMessage, Consumer consumerAnnotation) { |
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try { |
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return new Contract( |
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consumerAnnotation.destinationType(), |
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consumerAnnotation.destinationName(), |
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serializer.generateSchema(consumerMessage)); |
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} catch (JsonMappingException ex) { |
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throw new RuntimeException("Unable to extract contract for given consumer", ex); |
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} |
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} |
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} |
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HLTech /
vaunt
