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package org.glassfish.ejb.deployment.annotation.handlers;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.logging.Level;
import jakarta.ejb.Init;
import com.sun.enterprise.deployment.MethodDescriptor;
import com.sun.enterprise.deployment.annotation.context.EjbContext;
import com.sun.enterprise.deployment.util.TypeUtil;
import org.glassfish.apf.AnnotationHandlerFor;
import org.glassfish.apf.AnnotationInfo;
import org.glassfish.apf.AnnotationProcessorException;
import org.glassfish.apf.HandlerProcessingResult;
import org.glassfish.ejb.deployment.descriptor.EjbInitInfo;
import org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor;
import org.jvnet.hk2.annotations.Service;
/**
* This handler is responsible for handling the jakarta.ejb.Init attribute
*
*/
@Service
@AnnotationHandlerFor(Init.class)
public class InitHandler extends AbstractAttributeHandler {
public InitHandler() {
}
protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo,
EjbContext[] ejbContexts) throws AnnotationProcessorException {
Init init = (Init) ainfo.getAnnotation();
for(EjbContext next : ejbContexts) {
EjbSessionDescriptor sessionDescriptor =
(EjbSessionDescriptor) next.getDescriptor();
Method m = (Method) ainfo.getAnnotatedElement();
// Check for matching method on home and/or local home interface.
int numMatches = 0;
String adaptedCreateMethodName = init.value();
try {
if( sessionDescriptor.isRemoteInterfacesSupported() ) {
addInitMethod(sessionDescriptor, m,
adaptedCreateMethodName, false);
numMatches++;
}
} catch(Exception e) {
}
try {
if( sessionDescriptor.isLocalInterfacesSupported() ) {
addInitMethod(sessionDescriptor, m,
adaptedCreateMethodName, true);
numMatches++;
}
} catch(Exception e) {
}
if( numMatches == 0 ) {
log(Level.SEVERE, ainfo,
localStrings.getLocalString(
"enterprise.deployment.annotation.handlers.notmatchcreate",
"Unable to find matching Home create method for Init method {0} on bean {1}.",
new Object[] { m, sessionDescriptor.getName() }));
return getDefaultFailedResult();
}
}
return getDefaultProcessedResult();
}
private void addInitMethod(EjbSessionDescriptor descriptor,
Method beanMethod,
String adaptedCreateMethodName, boolean local)
throws Exception {
String homeIntfName = local ? descriptor.getLocalHomeClassName() :
descriptor.getHomeClassName();
ClassLoader cl = descriptor.getEjbBundleDescriptor().getClassLoader();
Class homeIntf = cl.loadClass(homeIntfName);
Method createMethod = null;
if( (adaptedCreateMethodName == null) ||
(adaptedCreateMethodName.equals("")) ) {
// Can't make any assumptions about matching method name. Could
// be "create" or some form of create, so match based on
// signature.
for(Method next : homeIntf.getMethods()) {
if( next.getName().startsWith("create") &&
TypeUtil.sameParamTypes(next, beanMethod) ) {
createMethod = next;
break;
}
}
if( createMethod == null ) {
throw new NoSuchMethodException("No matching adapted home " +
"method found for @Init " +
" method " + beanMethod);
}
} else {
createMethod = homeIntf.getMethod(adaptedCreateMethodName,
beanMethod.getParameterTypes());
}
MethodDescriptor beanMethodDescriptor =
new MethodDescriptor(beanMethod, MethodDescriptor.EJB_BEAN);
MethodDescriptor createMethodDescriptor =
new MethodDescriptor(createMethod,
( local ?
MethodDescriptor.EJB_HOME :
MethodDescriptor.EJB_LOCALHOME ));
EjbInitInfo initInfo = new EjbInitInfo();
initInfo.setBeanMethod(beanMethodDescriptor);
initInfo.setCreateMethod(createMethodDescriptor);
descriptor.addInitMethod(initInfo);
}
/**
* @return an array of annotation types this annotation handler would
* require to be processed (if present) before it processes it's own
* annotation type.
*/
public Class extends Annotation>[] getTypeDependencies() {
return getEjbAnnotationTypes();
}
}