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Extract functional bean definition concerns into a common class

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SpringApplication looks like the class with the same name in Spring
Boot (and is a subclass of it), but it checks to see if the user
is asking for functional bean registrations and only used those if
it can.
This commit is contained in:
Dave Syer
2018-10-12 18:00:41 +01:00
parent 083d5e3bf3
commit 666bc100e8
3 changed files with 157 additions and 80 deletions
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42
spring-cloud-function-adapters/spring-cloud-function-adapter-aws/src/main/java/org/springframework/cloud/function/adapter/aws/SpringFunctionInitializer.java
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@@ -30,18 +30,12 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.reactivestreams.Publisher;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.WebApplicationType;
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.cloud.function.context.FunctionRegistration;
import org.springframework.cloud.function.context.FunctionType;
import org.springframework.cloud.function.context.catalog.FunctionInspector;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.util.ClassUtils;
import reactor.core.publisher.Flux;
@@ -115,41 +109,9 @@ public class SpringFunctionInitializer implements Closeable {
}
private SpringApplication springApplication() {
ApplicationContextInitializer<GenericApplicationContext> initializer = null;
Class<?> sourceClass = configurationClass;
if (ApplicationContextInitializer.class.isAssignableFrom(sourceClass)) {
@SuppressWarnings("unchecked")
ApplicationContextInitializer<GenericApplicationContext> instance = BeanUtils
.instantiateClass(configurationClass,
ApplicationContextInitializer.class);
initializer = instance;
sourceClass = Object.class;
}
else if (Function.class.isAssignableFrom(sourceClass)) {
@SuppressWarnings("unchecked")
final Class<Function<?, ?>> type = (Class<Function<?, ?>>) sourceClass;
initializer = context -> {
context.registerBean(FunctionRegistration.class,
() -> new FunctionRegistration<>(
context.getAutowireCapableBeanFactory().createBean(type))
.type(FunctionType.of(type)));
};
sourceClass = Object.class;
}
SpringApplication application;
if (initializer != null) {
application = new SpringApplication(sourceClass) {
@Override
protected void load(ApplicationContext context, Object[] sources) {
}
};
application.addInitializers(initializer);
application.setDefaultProperties(
Collections.singletonMap("spring.functional.enabled", "true"));
}
else {
application = new SpringApplication(sourceClass);
}
SpringApplication application = new org.springframework.cloud.function.context.SpringApplication(
sourceClass);
application.setWebApplicationType(WebApplicationType.NONE);
return application;
}