/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.jackrabbit.ocm.manager.objectconverter.impl;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import net.sf.cglib.proxy.Callback;
import net.sf.cglib.proxy.Enhancer;
import org.apache.commons.lang.ArrayUtils;
import org.apache.jackrabbit.ocm.manager.beanconverter.BeanConverter;
import org.apache.jackrabbit.ocm.manager.collectionconverter.CollectionConverter;
import org.apache.jackrabbit.ocm.manager.objectconverter.ProxyManager;
import org.apache.jackrabbit.ocm.mapper.model.BeanDescriptor;
import org.apache.jackrabbit.ocm.mapper.model.ClassDescriptor;
import org.apache.jackrabbit.ocm.mapper.model.CollectionDescriptor;
public class ProxyManagerImpl implements ProxyManager {
/**
* @see org.apache.jackrabbit.ocm.manager.objectconverter.ProxyManager#createBeanProxy(javax.jcr.Session,
* org.apache.jackrabbit.ocm.manager.objectconverter.ObjectConverter,
* java.lang.Class, java.lang.String)
*/
public Object createBeanProxy(BeanConverter beanConverter, String path, Session session, Node parentNode,
BeanDescriptor beanDescriptor, ClassDescriptor beanClassDescriptor, Class beanClass, Object parent) {
try {
if (path == null || !session.itemExists(path)) {
return null;
}
} catch (RepositoryException e) {
throw new org.apache.jackrabbit.ocm.exception.RepositoryException("Impossible to check,if the object exits on " + path, e);
}
Callback loader = new BeanLazyLoader(beanConverter, session, parentNode, beanDescriptor, beanClassDescriptor, beanClass, parent);
return Enhancer.create(beanClass, getInterfaces(beanClass), loader);
}
/**
* @see org.apache.jackrabbit.ocm.manager.objectconverter.ProxyManager#createCollectionProxy(javax.jcr.Session,
* org.apache.jackrabbit.ocm.manager.collectionconverter.CollectionConverter,
* javax.jcr.Node,
* org.apache.jackrabbit.ocm.mapper.model.CollectionDescriptor,
* java.lang.Class)
*/
public Object createCollectionProxy(Session session, CollectionConverter collectionConverter, Node parentNode,
CollectionDescriptor collectionDescriptor, Class collectionFieldClass) {
if (collectionConverter.isNull(session, parentNode, collectionDescriptor, collectionFieldClass)) {
return null;
}
Callback loader = new CollectionLazyLoader(collectionConverter, session, parentNode, collectionDescriptor, collectionFieldClass);
return Enhancer.create(collectionFieldClass, getInterfaces(collectionFieldClass), loader);
}
private Class<?>[] getInterfaces(Class<?> collectionFieldClass) {
Class<?>[] interfaces = null;
if (collectionFieldClass.isInterface()) {
// if collectionFieldClass is an interface, simply use it
interfaces = new Class<?>[] { collectionFieldClass };
} else {
// else, use all interfaces
interfaces = collectionFieldClass.getInterfaces();
}
return (Class<?>[]) ArrayUtils.add(interfaces, OcmProxy.class);
}
}