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package com.sun.enterprise.deployment.annotation.handlers;
import java.lang.annotation.ElementType;
import java.util.logging.Level;
import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.WebComponentDescriptor;
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.ComponentContext;
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.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 annotation
* handler applying on Ejb and WebComponent Class. It will get the corresponding
* EjbDescriptors or WebComponentDescriptor associated to the annotation on
* the given Class and then pass it to underlying processAnnotation method.
* Concrete subclass handlers need to implement the following:
* public Class<? extends Annotation> getAnnotationType();
* protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
* EjbContext[] ejbContexts) throws AnnotationProcessorException;
* protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
* WebComponentContext[] webCompContexts)
* throws AnnotationProcessorException;
* protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
* WebBundleContext webBundleContext)
* 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 AbstractCommonAttributeHandler extends AbstractHandler {
/**
* Process Annotation with given EjbContexts.
* @param ainfo
* @param ejbContexts
* @return HandlerProcessingResult
*/
protected abstract HandlerProcessingResult processAnnotation(
AnnotationInfo ainfo, EjbContext[] ejbContexts)
throws AnnotationProcessorException;
/**
* Process Annotation with given WebCompContexts.
* @param ainfo
* @param webCompContexts
* @return HandlerProcessingResult
*/
protected abstract HandlerProcessingResult processAnnotation(
AnnotationInfo ainfo, WebComponentContext[] webCompContexts)
throws AnnotationProcessorException;
/**
* Process Annotation with given WebBundleContext.
* @param ainfo
* @param webBundleContext
* @return HandlerProcessingResult
*/
protected abstract HandlerProcessingResult processAnnotation(
AnnotationInfo ainfo, WebBundleContext webBundleContext)
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();
} else if (aeHandler instanceof WebBundleContext) {
WebBundleContext webBundleContext = (WebBundleContext)aeHandler;
aeHandler = webBundleContext.createContextForWeb();
if (aeHandler == null) {
// no such web comp, use webBundleContext
aeHandler = ainfo.getProcessingContext().getHandler();
}
}
if (aeHandler == null) {
// no such ejb
return getInvalidAnnotatedElementHandlerResult(
ainfo.getProcessingContext().getHandler(), ainfo);
}
if (!supportTypeInheritance() &&
ElementType.TYPE.equals(ainfo.getElementType()) &&
aeHandler instanceof ComponentContext) {
ComponentContext context = (ComponentContext)aeHandler;
Class clazz = (Class)ainfo.getAnnotatedElement();
if (!clazz.getName().equals(context.getComponentClassName())) {
if (logger.isLoggable(Level.WARNING)) {
log(Level.WARNING, ainfo,
localStrings.getLocalString(
"enterprise.deployment.annotation.handlers.typeinhernotsupp",
"The annotation symbol inheritance is not supported."));
}
return getDefaultProcessedResult();
}
}
HandlerProcessingResult procResult = null;
if (aeHandler instanceof EjbContext) {
procResult = processAnnotation(ainfo, new EjbContext[] { (EjbContext)aeHandler });
} else if (aeHandler instanceof EjbsContext) {
EjbsContext ejbsContext = (EjbsContext)aeHandler;
procResult = processAnnotation(ainfo, ejbsContext.getEjbContexts());
} else if (aeHandler instanceof WebComponentContext) {
procResult = processAnnotation(ainfo,
new WebComponentContext[] { (WebComponentContext)aeHandler });
} else if (aeHandler instanceof WebComponentsContext) {
WebComponentsContext webCompsContext = (WebComponentsContext)aeHandler;
procResult = processAnnotation(ainfo, webCompsContext.getWebComponentContexts());
} else if (aeHandler instanceof WebBundleContext) {
WebBundleContext webBundleContext = (WebBundleContext)aeHandler;
procResult = processAnnotation(ainfo, webBundleContext);
} else {
return getInvalidAnnotatedElementHandlerResult(aeHandler, ainfo);
}
return procResult;
}
/**
* This indicates whether the annotation type should be processed for
* type level in super-class.
*/
protected boolean supportTypeInheritance() {
return false;
}
}
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