/*
* Demoiselle Framework
* Copyright (C) 2010 SERPRO
* ----------------------------------------------------------------------------
* This file is part of Demoiselle Framework.
*
* Demoiselle Framework is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License version 3
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License version 3
* along with this program; if not, see <http://www.gnu.org/licenses/>
* or write to the Free Software Foundation, Inc., 51 Franklin Street,
* Fifth Floor, Boston, MA 02110-1301, USA.
* ----------------------------------------------------------------------------
* Este arquivo é parte do Framework Demoiselle.
*
* O Framework Demoiselle é um software livre; você pode redistribuí-lo e/ou
* modificá-lo dentro dos termos da GNU LGPL versão 3 como publicada pela Fundação
* do Software Livre (FSF).
*
* Este programa é distribuído na esperança que possa ser útil, mas SEM NENHUMA
* GARANTIA; sem uma garantia implícita de ADEQUAÇÃO a qualquer MERCADO ou
* APLICAÇÃO EM PARTICULAR. Veja a Licença Pública Geral GNU/LGPL em português
* para maiores detalhes.
*
* Você deve ter recebido uma cópia da GNU LGPL versão 3, sob o título
* "LICENCA.txt", junto com esse programa. Se não, acesse <http://www.gnu.org/licenses/>
* ou escreva para a Fundação do Software Livre (FSF) Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA.
*/
package br.gov.frameworkdemoiselle.internal.implementation;
import java.lang.reflect.InvocationTargetException;
import javax.enterprise.inject.spi.AnnotatedMethod;
import org.slf4j.Logger;
import br.gov.frameworkdemoiselle.annotation.Priority;
import br.gov.frameworkdemoiselle.exception.ApplicationException;
import br.gov.frameworkdemoiselle.internal.producer.LoggerProducer;
import br.gov.frameworkdemoiselle.message.SeverityType;
import br.gov.frameworkdemoiselle.util.Beans;
import br.gov.frameworkdemoiselle.util.NameQualifier;
import br.gov.frameworkdemoiselle.util.ResourceBundle;
/**
* Represents an annotated method to be processed;
*
* @param <T>
* declaring class owner of the method
*/
public class AnnotatedMethodProcessor<T> implements Comparable<AnnotatedMethodProcessor<T>> {
private AnnotatedMethod<T> annotatedMethod;
private transient static ResourceBundle bundle;
public AnnotatedMethodProcessor(final AnnotatedMethod<T> annotatedMethod) {
this.annotatedMethod = annotatedMethod;
}
public AnnotatedMethod<T> getAnnotatedMethod() {
return this.annotatedMethod;
}
@SuppressWarnings("unchecked")
protected T getReferencedBean() {
Class<T> classType = (Class<T>) getAnnotatedMethod().getJavaMember().getDeclaringClass();
return Beans.getReference(classType);
}
public int compareTo(final AnnotatedMethodProcessor<T> other) {
Integer orderThis = getPriority(getAnnotatedMethod());
Integer orderOther = getPriority(other.getAnnotatedMethod());
return orderThis.compareTo(orderOther);
}
public boolean process(Object... args) throws Exception {
getLogger().info(getBundle().getString("processing", getAnnotatedMethod().getJavaMember().toGenericString()));
try {
getAnnotatedMethod().getJavaMember().invoke(getReferencedBean(), args);
} catch (InvocationTargetException cause) {
handleException(cause.getCause());
}
return true;
}
private void handleException(Throwable cause) throws Exception {
ApplicationException ann = cause.getClass().getAnnotation(ApplicationException.class);
if (ann == null || SeverityType.FATAL == ann.severity()) {
throw (cause instanceof Exception ? (Exception) cause : new Exception(cause));
} else {
switch (ann.severity()) {
case INFO:
getLogger().info(cause.getMessage());
break;
case WARN:
getLogger().warn(cause.getMessage());
break;
default:
getLogger().error(getBundle().getString("processing-fail"), cause);
break;
}
}
}
private static <T> Integer getPriority(AnnotatedMethod<T> annotatedMethod) {
Integer priority = Priority.MIN_PRIORITY;
Priority annotation = annotatedMethod.getAnnotation(Priority.class);
if (annotation != null) {
priority = annotation.value();
}
return priority;
}
protected static ResourceBundle getBundle() {
if (bundle == null) {
bundle = Beans.getReference(ResourceBundle.class, new NameQualifier("demoiselle-core-bundle"));
}
return bundle;
}
protected Logger getLogger() {
return LoggerProducer.create(this.getClass());
}
}