/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.persistence.orm.spring.hibernate;
import java.lang.annotation.Annotation;
import java.util.HashMap;
import java.util.HashSet;
import org.smallmind.persistence.orm.MappedSubclass;
import org.smallmind.persistence.orm.SessionSource;
import org.smallmind.persistence.orm.hibernate.HibernateDao;
import org.smallmind.persistence.orm.querydsl.hibernate.QHibernateDao;
import org.smallmind.persistence.spring.ManagedDaoSupport;
import org.springframework.beans.BeansException;
import org.springframework.beans.FatalBeanException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
public class AnnotationSeekingBeanFactoryPostProcessor implements BeanFactoryPostProcessor {
private static final HashMap<String, HashSet<Class>> ANNOTATED_CLASS_DATA_SOURCE_MAP = new HashMap<String, HashSet<Class>>();
private static final Class[] NO_CLASSES = new Class[0];
private Class<? extends Annotation>[] markedAnnotations;
public static Class[] getAnnotatedClasses () {
return getAnnotatedClasses(null);
}
public static Class[] getAnnotatedClasses (String sessionSourceKey) {
Class[] annotatedClasses;
HashSet<Class> annotatedClassSet;
if ((annotatedClassSet = ANNOTATED_CLASS_DATA_SOURCE_MAP.get(sessionSourceKey)) == null) {
return NO_CLASSES;
}
annotatedClasses = new Class[annotatedClassSet.size()];
annotatedClassSet.toArray(annotatedClasses);
return annotatedClasses;
}
public void setMarkedAnnotations (Class<? extends Annotation>[] markedAnnotations) {
this.markedAnnotations = markedAnnotations;
}
private boolean hasMarkedAnnotation (Class persistentClass) {
for (Class<? extends Annotation> markedAnnotation : markedAnnotations) {
if (persistentClass.isAnnotationPresent(markedAnnotation)) {
return true;
}
}
return false;
}
public void postProcessBeanFactory (ConfigurableListableBeanFactory configurableListableBeanFactory)
throws BeansException {
Class<?> beanClass;
for (String beanName : configurableListableBeanFactory.getBeanDefinitionNames()) {
if ((beanClass = configurableListableBeanFactory.getType(beanName)) != null) {
if (HibernateDao.class.isAssignableFrom(beanClass) || QHibernateDao.class.isAssignableFrom(beanClass)) {
Class<?> persistentClass;
if ((persistentClass = ManagedDaoSupport.findDurableClass(beanClass)) == null) {
throw new FatalBeanException("No inference of the Durable class for type(" + beanClass.getName() + ") was possible");
} else {
Annotation dataSourceAnnotation;
HashSet<Class> annotatedClassSet;
String sessionSourceKey = null;
if ((dataSourceAnnotation = beanClass.getAnnotation(SessionSource.class)) != null) {
sessionSourceKey = ((SessionSource)dataSourceAnnotation).value();
}
if ((annotatedClassSet = ANNOTATED_CLASS_DATA_SOURCE_MAP.get(sessionSourceKey)) == null) {
ANNOTATED_CLASS_DATA_SOURCE_MAP.put(sessionSourceKey, annotatedClassSet = new HashSet<>());
}
processClass(persistentClass, annotatedClassSet);
}
}
}
}
}
private void processClass (Class<?> persistentClass, HashSet<Class> annotatedClassSet) {
if (hasMarkedAnnotation(persistentClass)) {
MappedSubclass mappedSubclass;
annotatedClassSet.add(persistentClass);
if ((mappedSubclass = persistentClass.getAnnotation(MappedSubclass.class)) != null) {
for (Class subclass : mappedSubclass.value()) {
if (!persistentClass.isAssignableFrom(subclass)) {
throw new FatalBeanException("Mapped subclass of type (" + subclass.getName() + ") must inherit from parent type (" + persistentClass.getName() + ")");
}
processClass(subclass, annotatedClassSet);
}
}
}
}
}