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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.weld.bean;

import org.jboss.weld.bootstrap.api.ServiceRegistry;
import org.jboss.weld.ejb.InternalEjbDescriptor;
import org.jboss.weld.introspector.WeldClass;
import org.jboss.weld.literal.NewLiteral;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.resources.ClassTransformer;

import javax.enterprise.context.Dependent;
import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.Set;

/**
 * Represents a @New enterprise bean
 *
 * @author Nicklas Karlsson
 */
public class NewSessionBean extends SessionBean implements NewBean {

    /**
     * Creates an instance of a NewEnterpriseBean from an annotated class
     *
     * @param clazz       The annotated class
     * @param beanManager The Bean manager
     * @return a new NewEnterpriseBean instance
     */
    public static  NewSessionBean of(InternalEjbDescriptor ejbDescriptor, BeanManagerImpl beanManager, ServiceRegistry services) {
        WeldClass type = beanManager.getServices().get(ClassTransformer.class).loadClass(ejbDescriptor.getBeanClass());
        return new NewSessionBean(type, ejbDescriptor, createId(NewSessionBean.class.getSimpleName(), ejbDescriptor), beanManager, services);
    }

    private Set bindings;

    /**
     * Protected constructor
     *
     * @param type        An annotated class
     * @param beanManager The Bean manager
     */
    protected NewSessionBean(final WeldClass type, InternalEjbDescriptor ejbDescriptor, String idSuffix, BeanManagerImpl beanManager, ServiceRegistry services) {
        super(type, ejbDescriptor, idSuffix, beanManager, services);
        this.bindings = new HashSet();
        this.bindings.add(new NewLiteral() {

            private static final long serialVersionUID = 3953682907943246693L;

            @Override
            public Class value() {
                return type.getJavaClass();
            }

        });
    }

    /**
     * Gets the scope type
     *
     * @return @Dependent
     */
    @Override
    public Class getScope() {
        return Dependent.class;
    }

    @Override
    public boolean isAlternative() {
        return false;
    }

    /**
     * Gets the name of the bean
     *
     * @return null
     */
    @Override
    public String getName() {
        return null;
    }

    /**
     * Gets the bindings
     *
     * @returns @New
     */
    @Override
    public Set getQualifiers() {
        return bindings;
    }

    @Override
    public boolean isSpecializing() {
        return false;
    }

    @Override
    protected void checkScopeAllowed() {
        // No-op
    }

    @Override
    protected void registerInterceptors() {
        // No - op
    }

    @Override
    public String toString() {
        return "@New " + super.toString();
    }
}