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package com.sun.enterprise.deployment.annotation.handlers;
import java.lang.annotation.Annotation;
import java.lang.annotation.ElementType;
import com.sun.enterprise.deployment.annotation.AnnotatedElementHandler;
import com.sun.enterprise.deployment.annotation.AnnotationInfo;
import com.sun.enterprise.deployment.annotation.AnnotationProcessorException;
import com.sun.enterprise.deployment.annotation.HandlerProcessingResult;
import com.sun.enterprise.deployment.annotation.context.EjbBundleContext;
import com.sun.enterprise.deployment.annotation.context.EjbContext;
import com.sun.enterprise.deployment.annotation.context.EjbsContext;
import com.sun.enterprise.deployment.annotation.context.ResourceContainerContext;
import com.sun.enterprise.deployment.annotation.context.WebBundleContext;
import com.sun.enterprise.deployment.annotation.context.WebComponentContext;
import com.sun.enterprise.deployment.annotation.context.WebComponentsContext;
/**
* This is an abstract class encapsulate generic behaviour of resource
* annotation.
* Concrete subclass handlers need to implement the following:
* public Class<? extends Annotation> getAnnotationType();
* protected HandlerProcessingResult processAnnotation(
* AnnotationInfo ainfo,
* ResourceContainerContext[] rcContexts)
* throws AnnotationProcessorException;
* It may also need to override the following if other annotations
* need to be processed prior to given annotation:
* public Class<? extends Annotation>[] getTypeDependencies();
*
* @author Shing Wai Chan
*/
abstract class AbstractResourceHandler extends AbstractHandler {
/**
* Process Annotation with given ResourceContainerContexts.
* @param ainfo
* @param rcContexts
*/
protected abstract HandlerProcessingResult processAnnotation(
AnnotationInfo ainfo,
ResourceContainerContext[] rcContexts)
throws AnnotationProcessorException;
/**
* Process a particular annotation which type is the same as the
* one returned by @see getAnnotationType(). All information
* pertinent to the annotation and its context is encapsulated
* in the passed AnnotationInfo instance.
*
* @param ainfo the annotation information
*/
public HandlerProcessingResult processAnnotation(AnnotationInfo ainfo)
throws AnnotationProcessorException {
AnnotatedElementHandler aeHandler = ainfo.getProcessingContext().getHandler();
if (aeHandler instanceof EjbBundleContext) {
EjbBundleContext ejbBundleContext = (EjbBundleContext)aeHandler;
aeHandler = ejbBundleContext.createContextForEjb();
if (aeHandler == null) {
aeHandler = ejbBundleContext.createContextForEjbInterceptor();
}
}
// WebBundleContext is a ResourceContainerContext.
if (aeHandler == null) {
// not an ejb, interceptor in ejbBundle
return getInvalidAnnotatedElementHandlerResult(
ainfo.getProcessingContext().getHandler(), ainfo);
}
ResourceContainerContext[] rcContexts = null;
if (aeHandler instanceof EjbsContext) {
EjbsContext ejbsContext = (EjbsContext)aeHandler;
rcContexts = (ResourceContainerContext[])ejbsContext.getEjbContexts();
} else if (aeHandler instanceof WebComponentsContext) {
WebComponentsContext webCompsContext = (WebComponentsContext)aeHandler;
rcContexts = (ResourceContainerContext[])webCompsContext.getWebComponentContexts();
} else if (aeHandler instanceof ResourceContainerContext) {
rcContexts = new ResourceContainerContext[] {
(ResourceContainerContext)aeHandler };
} else {
return getInvalidAnnotatedElementHandlerResult(aeHandler, ainfo);
}
return processAnnotation(ainfo, rcContexts);
}
public Class<? extends Annotation>[] getTypeDependencies() {
return getEjbAnnotationTypes();
}
}