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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.bootstrap.events;

import org.jboss.weld.event.ObserverMethodImpl;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.util.reflection.Reflections;

import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.ObserverMethod;
import javax.enterprise.inject.spi.ProcessObserverMethod;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.List;

/**
 * Implementation of the event used to notify observers for each observer
 * method that is added.
 *
 * @author David Allen
 */
public class ProcessObserverMethodImpl extends AbstractDefinitionContainerEvent implements ProcessObserverMethod {

    public static  void fire(BeanManagerImpl beanManager, ObserverMethodImpl observer) {
        new ProcessObserverMethodImpl(beanManager, Reflections.>cast(observer.getMethod().getAnnotated()), observer) {
        }.fire();
    }

    public static  void fire(BeanManagerImpl beanManager, ObserverMethod observer) {
        new ProcessObserverMethodImpl(beanManager, null, observer) {
        }.fire();
    }

    private final AnnotatedMethod beanMethod;
    private final ObserverMethod observerMethod;

    public ProcessObserverMethodImpl(BeanManagerImpl beanManager, AnnotatedMethod beanMethod, ObserverMethod observerMethod) {
        super(beanManager, ProcessObserverMethod.class, new Type[]{observerMethod.getObservedType(), observerMethod.getBeanClass()});
        this.beanMethod = beanMethod;
        this.observerMethod = observerMethod;
    }

    public void addDefinitionError(Throwable t) {
        getErrors().add(t);
    }

    public AnnotatedMethod getAnnotatedMethod() {
        return beanMethod;
    }

    public ObserverMethod getObserverMethod() {
        return observerMethod;
    }

    public List getDefinitionErrors() {
        return Collections.unmodifiableList(getErrors());
    }

}