Example usage for org.springframework.context.annotation ConfigurationClass addBeanMethod

Introduction

In this page you can find the example usage for org.springframework.context.annotation ConfigurationClass addBeanMethod.

Prototype

public void addBeanMethod(BeanMethod method) 

Source Link

Usage

From source file:org.springframework.context.annotation.ConfigurationClassParser.java

/**
 * Apply processing and build a complete {@link ConfigurationClass} by reading the
 * annotations, members and methods from the source class. This method can be called
 * multiple times as relevant sources are discovered.
 * @param configClass the configuration class being build
 * @param sourceClass a source class/*from   w ww.  j a  v  a 2  s . c om*/
 * @return the superclass, or {@code null} if none found or previously processed
 */
@Nullable
protected final SourceClass doProcessConfigurationClass(ConfigurationClass configClass, SourceClass sourceClass)
        throws IOException {

    // Recursively process any member (nested) classes first
    processMemberClasses(configClass, sourceClass);

    // Process any @PropertySource annotations
    for (AnnotationAttributes propertySource : AnnotationConfigUtils.attributesForRepeatable(
            sourceClass.getMetadata(), PropertySources.class,
            org.springframework.context.annotation.PropertySource.class)) {
        if (this.environment instanceof ConfigurableEnvironment) {
            processPropertySource(propertySource);
        } else {
            logger.warn("Ignoring @PropertySource annotation on [" + sourceClass.getMetadata().getClassName()
                    + "]. Reason: Environment must implement ConfigurableEnvironment");
        }
    }

    // Process any @ComponentScan annotations
    Set<AnnotationAttributes> componentScans = AnnotationConfigUtils
            .attributesForRepeatable(sourceClass.getMetadata(), ComponentScans.class, ComponentScan.class);
    if (!componentScans.isEmpty() && !this.conditionEvaluator.shouldSkip(sourceClass.getMetadata(),
            ConfigurationPhase.REGISTER_BEAN)) {
        for (AnnotationAttributes componentScan : componentScans) {
            // The config class is annotated with @ComponentScan -> perform the scan immediately
            Set<BeanDefinitionHolder> scannedBeanDefinitions = this.componentScanParser.parse(componentScan,
                    sourceClass.getMetadata().getClassName());
            // Check the set of scanned definitions for any further config classes and parse recursively if needed
            for (BeanDefinitionHolder holder : scannedBeanDefinitions) {
                if (ConfigurationClassUtils.checkConfigurationClassCandidate(holder.getBeanDefinition(),
                        this.metadataReaderFactory)) {
                    parse(holder.getBeanDefinition().getBeanClassName(), holder.getBeanName());
                }
            }
        }
    }

    // Process any @Import annotations
    processImports(configClass, sourceClass, getImports(sourceClass), true);

    // Process any @ImportResource annotations
    AnnotationAttributes importResource = AnnotationConfigUtils.attributesFor(sourceClass.getMetadata(),
            ImportResource.class);
    if (importResource != null) {
        String[] resources = importResource.getStringArray("locations");
        Class<? extends BeanDefinitionReader> readerClass = importResource.getClass("reader");
        for (String resource : resources) {
            String resolvedResource = this.environment.resolveRequiredPlaceholders(resource);
            configClass.addImportedResource(resolvedResource, readerClass);
        }
    }

    // Process individual @Bean methods
    Set<MethodMetadata> beanMethods = retrieveBeanMethodMetadata(sourceClass);
    for (MethodMetadata methodMetadata : beanMethods) {
        configClass.addBeanMethod(new BeanMethod(methodMetadata, configClass));
    }

    // Process default methods on interfaces
    processInterfaces(configClass, sourceClass);

    // Process superclass, if any
    if (sourceClass.getMetadata().hasSuperClass()) {
        String superclass = sourceClass.getMetadata().getSuperClassName();
        if (superclass != null && !superclass.startsWith("java")
                && !this.knownSuperclasses.containsKey(superclass)) {
            this.knownSuperclasses.put(superclass, configClass);
            // Superclass found, return its annotation metadata and recurse
            return sourceClass.getSuperClass();
        }
    }

    // No superclass -> processing is complete
    return null;
}

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From source file:org.springframework.context.annotation.ConfigurationClassParser.java

/**
 * Register default methods on interfaces implemented by the configuration class.
 *///from  w ww.  j ava  2s  . com
private void processInterfaces(ConfigurationClass configClass, SourceClass sourceClass) throws IOException {
    for (SourceClass ifc : sourceClass.getInterfaces()) {
        Set<MethodMetadata> beanMethods = retrieveBeanMethodMetadata(ifc);
        for (MethodMetadata methodMetadata : beanMethods) {
            if (!methodMetadata.isAbstract()) {
                // A default method or other concrete method on a Java 8+ interface...
                configClass.addBeanMethod(new BeanMethod(methodMetadata, configClass));
            }
        }
        processInterfaces(configClass, ifc);
    }
}

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