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package org.glassfish.jersey.internal.inject;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.function.Supplier;
import javax.ws.rs.core.GenericType;
import org.glassfish.jersey.internal.util.ReflectionHelper;
/**
* Utility class to create a new injection binding descriptions for arbitrary Java beans.
*
* @author Petr Bouda (petr.bouda at oracle.com)
*/
public final class Bindings {
private Bindings() {
throw new AssertionError("Utility class instantiation forbidden.");
}
/**
* Start building a new class-based service binding.
*
* Does NOT service the service type itself as a contract type.
*
* @param service type.
* @param serviceType service class.
* @return initialized binding builder.
*/
public static ClassBinding service(Class serviceType) {
return new ClassBinding<>(serviceType);
}
/**
* Start building a new class-based service binding.
*
* Binds the service type itself as a contract type.
*
* @param service type.
* @param serviceType service class.
* @return initialized binding builder.
*/
public static ClassBinding serviceAsContract(Class serviceType) {
return new ClassBinding<>(serviceType).to(serviceType);
}
/**
* Start building a new generic type-based service binding.
*
* Binds the generic service type itself as a contract type.
*
* @param service type.
* @param serviceType generic service type information.
* @return initialized binding builder.
*/
@SuppressWarnings("unchecked")
public static ClassBinding service(GenericType serviceType) {
return (ClassBinding) new ClassBinding<>(serviceType.getRawType()).asType(serviceType.getType());
}
/**
* Start building a new generic type-based service binding.
*
* Binds the generic service type itself as a contract type.
*
* @param service type.
* @param serviceType generic service type information.
* @return initialized binding builder.
*/
@SuppressWarnings("unchecked")
public static ClassBinding serviceAsContract(GenericType serviceType) {
return (ClassBinding) new ClassBinding<>(serviceType.getRawType())
.asType(serviceType.getType())
.to(serviceType.getType());
}
/**
* Start building a new generic type-based service binding.
*
* Binds the generic service type itself as a contract type.
*
* @param service type.
* @param serviceType generic service type information.
* @return initialized binding builder.
*/
@SuppressWarnings("unchecked")
public static ClassBinding serviceAsContract(Type serviceType) {
return new ClassBinding<>((Class) ReflectionHelper.getRawClass(serviceType))
.asType(serviceType)
.to(serviceType);
}
/**
* Start building a new instance-based service binding. The binding is naturally
* considered to be a {@link javax.inject.Singleton singleton-scoped}.
*
* Does NOT service the service type itself as a contract type.
*
* @param service type.
* @param service service instance.
* @return initialized binding builder.
*/
public static InstanceBinding service(T service) {
return new InstanceBinding<>(service);
}
/**
* Start building a new instance-based service binding. The binding is naturally
* considered to be a {@link javax.inject.Singleton singleton-scoped}.
*
* Binds the generic service type itself as a contract type.
*
* @param service type.
* @param service service instance.
* @return initialized binding builder.
*/
public static InstanceBinding serviceAsContract(T service) {
return new InstanceBinding<>(service, service.getClass());
}
/**
* Start building a new supplier class-based service binding.
*
* @param service type.
* @param supplierType service supplier class.
* @param supplierScope factory scope.
* @return initialized binding builder.
*/
public static SupplierClassBinding supplier(
Class> supplierType, Class supplierScope) {
return new SupplierClassBinding<>(supplierType, supplierScope);
}
/**
* Start building a new supplier class-based service binding.
*
* The supplier itself is bound in a per-lookup scope.
*
* @param service type.
* @param supplierType service supplier class.
* @return initialized binding builder.
*/
public static SupplierClassBinding supplier(Class> supplierType) {
return new SupplierClassBinding<>(supplierType, null);
}
/**
* Start building a new supplier instance-based service binding.
*
* @param service type.
* @param supplier service instance.
* @return initialized binding builder.
*/
public static SupplierInstanceBinding supplier(Supplier supplier) {
return new SupplierInstanceBinding<>(supplier);
}
/**
* Start building a new injection resolver binding. The injection resolver is naturally
* considered to be a {@link javax.inject.Singleton singleton-scoped}.
*
* There is no need to provide any additional information. Other method on {@link Binding}
* will be ignored.
*
* @param type of the injection resolver.
* @param resolver injection resolver instance.
* @return initialized binding builder.
*/
public static InjectionResolverBinding injectionResolver(T resolver) {
return new InjectionResolverBinding<>(resolver);
}
}