Move changes over to a BeanFactoryInitializationAotProcessor.
This commit is contained in:
Olga Maciaszek-Sharma
@@ -56,12 +56,12 @@ import org.springframework.cloud.client.actuator.HasFeatures;
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import org.springframework.cloud.client.circuitbreaker.CircuitBreaker;
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import org.springframework.cloud.client.circuitbreaker.CircuitBreakerFactory;
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import org.springframework.cloud.openfeign.aot.FeignChildContextInitializer;
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import org.springframework.cloud.openfeign.aot.FeignClientBeanFactoryInitializationAotProcessor;
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import org.springframework.cloud.openfeign.security.OAuth2AccessTokenInterceptor;
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import org.springframework.cloud.openfeign.support.FeignEncoderProperties;
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import org.springframework.cloud.openfeign.support.FeignHttpClientProperties;
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import org.springframework.cloud.openfeign.support.PageJacksonModule;
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import org.springframework.cloud.openfeign.support.SortJacksonModule;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Conditional;
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import org.springframework.context.annotation.Configuration;
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@@ -117,6 +117,12 @@ public class FeignAutoConfiguration {
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return new FeignChildContextInitializer(parentContext, feignClientFactory);
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}
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@Bean
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static FeignClientBeanFactoryInitializationAotProcessor feignClientBeanFactoryInitializationCodeGenerator(GenericApplicationContext applicationContext,
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FeignClientFactory feignClientFactory) {
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return new FeignClientBeanFactoryInitializationAotProcessor(applicationContext, feignClientFactory);
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}
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@Bean
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@ConditionalOnProperty(value = "spring.cloud.openfeign.cache.enabled", matchIfMissing = true)
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@ConditionalOnBean(CacheInterceptor.class)
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@@ -4,7 +4,6 @@ import java.util.Collection;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Objects;
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import java.util.Set;
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import java.util.stream.Collectors;
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@@ -13,33 +12,21 @@ import javax.lang.model.element.Modifier;
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import org.springframework.aot.generate.GeneratedMethod;
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import org.springframework.aot.generate.GenerationContext;
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import org.springframework.beans.factory.BeanFactory;
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import org.springframework.beans.factory.FactoryBean;
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import org.springframework.beans.factory.aot.BeanRegistrationAotContribution;
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import org.springframework.beans.factory.aot.BeanRegistrationAotProcessor;
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import org.springframework.beans.factory.aot.BeanRegistrationCode;
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import org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter;
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import org.springframework.beans.factory.config.BeanDefinition;
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import org.springframework.beans.factory.config.BeanDefinitionHolder;
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import org.springframework.beans.factory.config.ConfigurableBeanFactory;
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import org.springframework.beans.factory.support.AbstractBeanDefinition;
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import org.springframework.beans.factory.support.BeanDefinitionBuilder;
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import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
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import org.springframework.beans.factory.support.BeanDefinitionRegistry;
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import org.springframework.beans.factory.support.GenericBeanDefinition;
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import org.springframework.beans.factory.support.RegisteredBean;
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import org.springframework.boot.web.context.WebServerInitializedEvent;
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import org.springframework.cloud.openfeign.FeignClientFactory;
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import org.springframework.cloud.openfeign.FeignClientFactoryBean;
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import org.springframework.cloud.openfeign.FeignClientSpecification;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextInitializer;
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import org.springframework.context.ApplicationListener;
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import org.springframework.context.ConfigurableApplicationContext;
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import org.springframework.context.aot.ApplicationContextAotGenerator;
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import org.springframework.context.support.GenericApplicationContext;
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import org.springframework.javapoet.ClassName;
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import org.springframework.javapoet.MethodSpec;
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import org.springframework.util.Assert;
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import org.springframework.util.ClassUtils;
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/**
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* A {@link BeanRegistrationAotProcessor} that creates an {@link BeanRegistrationAotContribution} for
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@@ -48,32 +35,28 @@ import org.springframework.util.ClassUtils;
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* @author Olga Maciaszek-Sharma
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* @since 4.0.0
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*/
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public class FeignChildContextInitializer implements BeanRegistrationAotProcessor, ApplicationListener<WebServerInitializedEvent>,
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BeanRegistrationExcludeFilter {
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public class FeignChildContextInitializer implements BeanRegistrationAotProcessor, ApplicationListener<WebServerInitializedEvent> {
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private final GenericApplicationContext context;
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private final ApplicationContext applicationContext;
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private final FeignClientFactory feignClientFactory;
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private final Map<String, ApplicationContextInitializer<GenericApplicationContext>> applicationContextInitializers;
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private final Map<String, BeanDefinition> feignClientBeanDefinitions;
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public FeignChildContextInitializer(GenericApplicationContext context, FeignClientFactory feignClientFactory) {
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this(context, feignClientFactory, new HashMap<>());
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public FeignChildContextInitializer(ApplicationContext applicationContext, FeignClientFactory feignClientFactory) {
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this(applicationContext, feignClientFactory, new HashMap<>());
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}
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public FeignChildContextInitializer(GenericApplicationContext context, FeignClientFactory feignClientFactory, Map<String, ApplicationContextInitializer<GenericApplicationContext>> applicationContextInitializers) {
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this.context = context;
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public FeignChildContextInitializer(ApplicationContext applicationContext, FeignClientFactory feignClientFactory, Map<String, ApplicationContextInitializer<GenericApplicationContext>> applicationContextInitializers) {
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this.applicationContext = applicationContext;
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this.feignClientFactory = feignClientFactory;
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this.applicationContextInitializers = applicationContextInitializers;
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feignClientBeanDefinitions = getFeignClientClassNames();
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}
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@Override
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public BeanRegistrationAotContribution processAheadOfTime(RegisteredBean registeredBean) {
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Assert.isInstanceOf(ConfigurableApplicationContext.class, context);
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ConfigurableApplicationContext context = this.context;
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Assert.isInstanceOf(ConfigurableApplicationContext.class, applicationContext);
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ConfigurableApplicationContext context = ((ConfigurableApplicationContext) applicationContext);
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BeanFactory applicationBeanFactory = context.getBeanFactory();
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if (!(registeredBean.getBeanClass().equals(getClass())
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&& registeredBean.getBeanFactory().equals(applicationBeanFactory))) {
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@@ -83,7 +66,7 @@ public class FeignChildContextInitializer implements BeanRegistrationAotProcesso
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Map<String, GenericApplicationContext> childContextAotContributions = contextIds.stream()
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.map(contextId -> Map.entry(contextId, buildChildContext(contextId)))
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.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
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return new AotContribution(childContextAotContributions, feignClientBeanDefinitions);
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return new AotContribution(childContextAotContributions);
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}
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private GenericApplicationContext buildChildContext(String contextId) {
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@@ -106,13 +89,13 @@ public class FeignChildContextInitializer implements BeanRegistrationAotProcesso
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.forEach(contextId -> convertedInitializers.put(contextId,
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(ApplicationContextInitializer<GenericApplicationContext>) applicationContextInitializers
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.get(contextId)));
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return new FeignChildContextInitializer(context, feignClientFactory,
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return new FeignChildContextInitializer(applicationContext, feignClientFactory,
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convertedInitializers);
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}
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@Override
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public void onApplicationEvent(WebServerInitializedEvent event) {
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if (context.equals(event.getApplicationContext())) {
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if (applicationContext.equals(event.getApplicationContext())) {
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applicationContextInitializers.keySet().forEach(contextId -> {
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GenericApplicationContext childContext = feignClientFactory.buildContext(contextId);
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applicationContextInitializers.get(contextId).initialize(childContext);
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@@ -127,33 +110,15 @@ public class FeignChildContextInitializer implements BeanRegistrationAotProcesso
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return false;
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}
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@Override
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public boolean isExcludedFromAotProcessing(RegisteredBean registeredBean) {
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return feignClientBeanDefinitions
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.containsKey(registeredBean.getBeanClass().getName());
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}
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private Map<String, BeanDefinition> getFeignClientClassNames() {
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Map<String, FeignClientSpecification> configurations = feignClientFactory.getConfigurations();
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return configurations.values().stream()
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.map(FeignClientSpecification::getClassName)
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.filter(Objects::nonNull)
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.filter(className -> !className.equals("default"))
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.map(className -> Map.entry(className, context.getBeanDefinition(className)))
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.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
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}
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private static class AotContribution implements BeanRegistrationAotContribution {
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private final Map<String, GenericApplicationContext> childContexts;
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private final Map<String, BeanDefinition> feignClientBeanDefinitions;
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public AotContribution(Map<String, GenericApplicationContext> childContexts, Map<String, BeanDefinition> feignClientBeanDefinitions) {
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public AotContribution(Map<String, GenericApplicationContext> childContexts) {
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this.childContexts = childContexts.entrySet().stream()
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.filter(entry -> entry.getValue() != null)
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.map(entry -> Map.entry(entry.getKey(), entry.getValue()))
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.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
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this.feignClientBeanDefinitions = feignClientBeanDefinitions;
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}
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@Override
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@@ -184,68 +149,6 @@ public class FeignChildContextInitializer implements BeanRegistrationAotProcesso
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method.addStatement("return instance.withApplicationContextInitializers(initializers)");
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});
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beanRegistrationCode.addInstancePostProcessor(postProcessorMethod.toMethodReference());
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// TODO: ensure the methods are called
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feignClientBeanDefinitions.values().forEach(beanDefinition -> {
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// TODO: handle problem retrieving
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Assert.notNull(beanDefinition, "beanDefinition cannot be null");
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Assert.isInstanceOf(GenericBeanDefinition.class, beanDefinition);
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GenericBeanDefinition registeredBeanDefinition = (GenericBeanDefinition) beanDefinition;
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Object factoryBeanObject = registeredBeanDefinition.getAttribute("feignClientsRegistrarFactoryBean");
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Assert.isInstanceOf(FeignClientFactoryBean.class, factoryBeanObject);
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FeignClientFactoryBean factoryBean = (FeignClientFactoryBean) factoryBeanObject;
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Assert.notNull(factoryBean, "factoryBean cannot be null");
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generationContext.getGeneratedClasses()
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// FIXME: correct generation context
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.getOrAddForFeatureComponent(registeredBeanDefinition.getBeanClassName(), generatedInitializerClassNames.get(factoryBean.getContextId()), type -> {
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type.addMethod(buildMethodSpec(factoryBean, registeredBeanDefinition));
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}
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);
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});
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}
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// TODO: verify all factory bean method values from registrar!
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private MethodSpec buildMethodSpec(FeignClientFactoryBean registeredFactoryBean, GenericBeanDefinition registeredBeanDefinition) {
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String qualifiers = "{\"" + String.join("\",\"", registeredFactoryBean.getQualifiers()) + "\"}";
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return MethodSpec.methodBuilder("feignClientRegistration")
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.addJavadoc("registerFeignClient")
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.addModifiers(Modifier.PUBLIC, Modifier.STATIC)
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.addParameter(BeanDefinitionRegistry.class, "registry")
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.addStatement("Class clazz = $T.resolveClassName(\"$L\", null)", ClassUtils.class, registeredBeanDefinition.getBeanClassName())
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.addStatement("$T beanFactory = registry instanceof $T ? ($T) registry : null",
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ConfigurableBeanFactory.class, ConfigurableBeanFactory.class, ConfigurableBeanFactory.class)
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.addStatement("$T factoryBean = new $T()", FeignClientFactoryBean.class, FeignClientFactoryBean.class)
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.addStatement("factoryBean.setBeanFactory(beanFactory)")
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.addStatement("factoryBean.setName(\"$L\")", registeredFactoryBean.getName())
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.addStatement("factoryBean.setContextId(\"$L\")", registeredFactoryBean.getContextId())
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.addStatement("factoryBean.setType($T.class)", registeredFactoryBean.getType())
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.addStatement("factoryBean.setUrl($L)", registeredFactoryBean.getUrl())
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.addStatement("factoryBean.setPath($L)", registeredFactoryBean.getPath())
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.addStatement("factoryBean.setDismiss404($L)", registeredFactoryBean.isDismiss404())
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.addStatement("factoryBean.setFallback($T.class)", registeredFactoryBean.getFallback())
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.addStatement("factoryBean.setFallbackFactory($T.class)", registeredFactoryBean.getFallbackFactory())
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.addStatement("$T definition = $T.genericBeanDefinition(clazz, () -> factoryBean.getObject())", BeanDefinitionBuilder.class,
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BeanDefinitionBuilder.class)
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.addStatement("definition.setAutowireMode($L)", registeredBeanDefinition.getAutowireMode())
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.addStatement("definition.setLazyInit($L)", registeredBeanDefinition.getLazyInit())
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.addStatement("$T beanDefinition = definition.getBeanDefinition()", AbstractBeanDefinition.class)
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.addStatement("beanDefinition.setAttribute(\"$L\", $T.class)", FactoryBean.OBJECT_TYPE_ATTRIBUTE, registeredFactoryBean.getType())
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.addStatement("beanDefinition.setAttribute(\"feignClientsRegistrarFactoryBean\", factoryBean)")
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.addStatement("beanDefinition.setPrimary($L)", registeredBeanDefinition.isPrimary())
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.addStatement("String[] qualifiers = new String[]{}")
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.addStatement("$T holder = new $T(beanDefinition, \"$L\", new String[]$L)", BeanDefinitionHolder.class,
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BeanDefinitionHolder.class, registeredBeanDefinition.getBeanClassName(), qualifiers)
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.addStatement("$T.registerBeanDefinition(holder, registry) ", BeanDefinitionReaderUtils.class)
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.build();
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// TODO
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// .addStatement("Class<?> beanType = $T.class", Class.forName(feignClientBeanDefinition.getBeanClassName()))
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// .addStatement("$T beanDefinition = new $T(beanType)", RootBeanDefinition.class, RootBeanDefinition.class)
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// .addStatement("beanDefinition.setLazyInit($L)", feignClientBeanDefinition.isLazyInit())
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// .addStatement("beanDefinition.setInstanceSupplier(($T<Object>) registeredBean -> new $T())", InstanceSupplier.class, FeignClientFactoryBean.class)
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// .addStatement("return beanDefinition")
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}
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}
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@@ -0,0 +1,149 @@
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package org.springframework.cloud.openfeign.aot;
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import java.util.Map;
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import java.util.Objects;
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import java.util.Set;
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import java.util.stream.Collectors;
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import javax.lang.model.element.Modifier;
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import org.springframework.aot.generate.GenerationContext;
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import org.springframework.aot.generate.MethodReference;
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import org.springframework.beans.factory.FactoryBean;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotContribution;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationCode;
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import org.springframework.beans.factory.aot.BeanRegistrationExcludeFilter;
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import org.springframework.beans.factory.config.BeanDefinition;
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import org.springframework.beans.factory.config.BeanDefinitionHolder;
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import org.springframework.beans.factory.config.ConfigurableBeanFactory;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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import org.springframework.beans.factory.support.AbstractBeanDefinition;
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import org.springframework.beans.factory.support.BeanDefinitionBuilder;
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import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
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import org.springframework.beans.factory.support.BeanDefinitionRegistry;
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import org.springframework.beans.factory.support.DefaultListableBeanFactory;
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import org.springframework.beans.factory.support.GenericBeanDefinition;
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import org.springframework.beans.factory.support.RegisteredBean;
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import org.springframework.cloud.openfeign.FeignClientFactory;
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import org.springframework.cloud.openfeign.FeignClientFactoryBean;
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import org.springframework.cloud.openfeign.FeignClientSpecification;
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import org.springframework.context.support.GenericApplicationContext;
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import org.springframework.javapoet.MethodSpec;
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import org.springframework.util.Assert;
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import org.springframework.util.ClassUtils;
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/**
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* @author Olga Maciaszek-Sharma
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*/
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public class FeignClientBeanFactoryInitializationAotProcessor implements BeanRegistrationExcludeFilter, BeanFactoryInitializationAotProcessor {
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private final GenericApplicationContext context;
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private final Map<String, BeanDefinition> feignClientBeanDefinitions;
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public FeignClientBeanFactoryInitializationAotProcessor(GenericApplicationContext context, FeignClientFactory feignClientFactory) {
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this.context = context;
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this.feignClientBeanDefinitions = getFeignClientBeanDefinitions(feignClientFactory);
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}
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@Override
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public boolean isExcludedFromAotProcessing(RegisteredBean registeredBean) {
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return feignClientBeanDefinitions
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.containsKey(registeredBean.getBeanClass().getName());
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}
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private Map<String, BeanDefinition> getFeignClientBeanDefinitions(FeignClientFactory feignClientFactory) {
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Map<String, FeignClientSpecification> configurations = feignClientFactory.getConfigurations();
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return configurations.values().stream()
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.map(FeignClientSpecification::getClassName)
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.filter(Objects::nonNull)
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.filter(className -> !className.equals("default"))
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.map(className -> Map.entry(className, context.getBeanDefinition(className)))
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.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
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}
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@Override
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public BeanFactoryInitializationAotContribution processAheadOfTime(ConfigurableListableBeanFactory beanFactory) {
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if (!feignClientBeanDefinitions.isEmpty()) {
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return new AotContribution(feignClientBeanDefinitions);
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}
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return null;
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}
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private static class AotContribution implements BeanFactoryInitializationAotContribution {
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private final Map<String, BeanDefinition> feignClientBeanDefinitions;
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private AotContribution(Map<String, BeanDefinition> feignClientBeanDefinitions) {
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this.feignClientBeanDefinitions = feignClientBeanDefinitions;
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}
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@Override
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public void applyTo(GenerationContext generationContext, BeanFactoryInitializationCode beanFactoryInitializationCode) {
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Set<String> feignClientRegistrationMethods = feignClientBeanDefinitions.values()
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.stream()
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.map(beanDefinition -> {
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Assert.notNull(beanDefinition, "beanDefinition cannot be null");
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Assert.isInstanceOf(GenericBeanDefinition.class, beanDefinition);
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GenericBeanDefinition registeredBeanDefinition = (GenericBeanDefinition) beanDefinition;
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Object factoryBeanObject = registeredBeanDefinition.getAttribute("feignClientsRegistrarFactoryBean");
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Assert.isInstanceOf(FeignClientFactoryBean.class, factoryBeanObject);
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FeignClientFactoryBean factoryBean = (FeignClientFactoryBean) factoryBeanObject;
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Assert.notNull(factoryBean, "factoryBean cannot be null");
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return beanFactoryInitializationCode.getMethods()
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.add(buildMethodName(factoryBean.getType().getSimpleName()),
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method -> generateFeignClientRegistrationMethod(method, factoryBean, registeredBeanDefinition))
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.getName();
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}).collect(Collectors.toSet());
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MethodReference initializerMethod = beanFactoryInitializationCode.getMethods()
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.add("initialize", method -> generateInitializerMethod(method, feignClientRegistrationMethods))
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.toMethodReference();
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beanFactoryInitializationCode.addInitializer(initializerMethod);
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}
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private String buildMethodName(String clientName) {
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return "register" + clientName + "FeignClient";
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}
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private void generateInitializerMethod(MethodSpec.Builder method, Set<String> feignClientRegistrationMethods) {
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method.addModifiers(Modifier.PUBLIC);
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method.addParameter(DefaultListableBeanFactory.class, "registry");
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feignClientRegistrationMethods.forEach(feignClientRegistrationMethod -> method.addStatement("$N(registry)", feignClientRegistrationMethod));
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}
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private void generateFeignClientRegistrationMethod(MethodSpec.Builder method, FeignClientFactoryBean registeredFactoryBean, GenericBeanDefinition registeredBeanDefinition) {
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String qualifiers = "{\"" + String.join("\",\"", registeredFactoryBean.getQualifiers()) + "\"}";
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method
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.addJavadoc("register Feign Client: $L", registeredBeanDefinition.getBeanClassName())
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.addModifiers(Modifier.PUBLIC, Modifier.STATIC)
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.addParameter(BeanDefinitionRegistry.class, "registry")
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.addStatement("Class clazz = $T.resolveClassName(\"$L\", null)", ClassUtils.class, registeredBeanDefinition.getBeanClassName())
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.addStatement("$T beanFactory = registry instanceof $T ? ($T) registry : null",
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ConfigurableBeanFactory.class, ConfigurableBeanFactory.class, ConfigurableBeanFactory.class)
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.addStatement("$T factoryBean = new $T()", FeignClientFactoryBean.class, FeignClientFactoryBean.class)
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.addStatement("factoryBean.setBeanFactory(beanFactory)")
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.addStatement("factoryBean.setName(\"$L\")", registeredFactoryBean.getName())
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.addStatement("factoryBean.setContextId(\"$L\")", registeredFactoryBean.getContextId())
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.addStatement("factoryBean.setType($T.class)", registeredFactoryBean.getType())
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.addStatement("factoryBean.setUrl($L)", registeredFactoryBean.getUrl())
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.addStatement("factoryBean.setPath($L)", registeredFactoryBean.getPath())
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.addStatement("factoryBean.setDismiss404($L)", registeredFactoryBean.isDismiss404())
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.addStatement("factoryBean.setFallback($T.class)", registeredFactoryBean.getFallback())
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.addStatement("factoryBean.setFallbackFactory($T.class)", registeredFactoryBean.getFallbackFactory())
|
||||
.addStatement("$T definition = $T.genericBeanDefinition(clazz, () -> factoryBean.getObject())", BeanDefinitionBuilder.class,
|
||||
BeanDefinitionBuilder.class)
|
||||
.addStatement("definition.setAutowireMode($L)", registeredBeanDefinition.getAutowireMode())
|
||||
.addStatement("definition.setLazyInit($L)", registeredBeanDefinition.getLazyInit())
|
||||
.addStatement("$T beanDefinition = definition.getBeanDefinition()", AbstractBeanDefinition.class)
|
||||
.addStatement("beanDefinition.setAttribute(\"$L\", $T.class)", FactoryBean.OBJECT_TYPE_ATTRIBUTE, registeredFactoryBean.getType())
|
||||
.addStatement("beanDefinition.setAttribute(\"feignClientsRegistrarFactoryBean\", factoryBean)")
|
||||
.addStatement("beanDefinition.setPrimary($L)", registeredBeanDefinition.isPrimary())
|
||||
.addStatement("$T holder = new $T(beanDefinition, \"$L\", new String[]$L)", BeanDefinitionHolder.class,
|
||||
BeanDefinitionHolder.class, registeredBeanDefinition.getBeanClassName(), qualifiers)
|
||||
.addStatement("$T.registerBeanDefinition(holder, registry) ", BeanDefinitionReaderUtils.class);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user