Package org.apache.jackrabbit.ocm.manager.objectconverter.impl

Source Code of org.apache.jackrabbit.ocm.manager.objectconverter.impl.ProxyManagerImpl

/*
* 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.Enhancer;
import net.sf.cglib.proxy.LazyLoader;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.jackrabbit.ocm.manager.collectionconverter.CollectionConverter;
import org.apache.jackrabbit.ocm.manager.collectionconverter.ManageableCollection;
import org.apache.jackrabbit.ocm.manager.collectionconverter.ManageableCollectionUtil;
import org.apache.jackrabbit.ocm.manager.objectconverter.ObjectConverter;
import org.apache.jackrabbit.ocm.manager.objectconverter.ProxyManager;
import org.apache.jackrabbit.ocm.mapper.model.CollectionDescriptor;

public class ProxyManagerImpl implements ProxyManager
{

  private final static Log log = LogFactory.getLog(ProxyManagerImpl.class);
 
  

  /**
   *
   * @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(Session session, ObjectConverter objectConverter, Class beanClass, String path)
  {
   
       try {
      if (!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);
    }
       
    LazyLoader loader = new BeanLazyLoader(objectConverter, session, beanClass, path) ;   
    return  Enhancer.create(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;
    }
   
    ManageableCollection manageableCollection = ManageableCollectionUtil.getManageableCollection(collectionFieldClass);
   
    LazyLoader loader = new CollectionLazyLoader(collectionConverter, session, parentNode, collectionDescriptor, collectionFieldClass);
    return  Enhancer.create(manageableCollection.getClass(), loader);
 
}
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