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package com.sun.hk2.component;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Type;
import org.jvnet.hk2.annotations.Lead;
import org.jvnet.hk2.component.ComponentException;
import org.jvnet.hk2.component.Habitat;
import org.jvnet.hk2.component.Inhabitant;
/**
* Injection Resolver responsible for Lead Annotation type.
*
* @deprecated this is scheduled for removal
*/
public class LeadInjectionResolver extends InjectionResolver<Lead>{
final Habitat habitat;
public LeadInjectionResolver(Habitat habitat) {
super(Lead.class);
this.habitat = habitat;
}
@Override
public <V> V getValue(Object component,
Inhabitant<?> onBehalfOf,
AnnotatedElement target,
Type genericType,
Class<V> type) throws ComponentException {
Inhabitant<?> lead = onBehalfOf.lead();
if (lead==null) {
// TODO: we should be able to check this error at APT, too.
throw new ComponentException(component.getClass()+" requested @Lead injection but this is not a companion");
}
if(type==Inhabitant.class) {
return type.cast(lead);
}
// otherwise inject the target object
return type.cast(lead.get());
}
}