/**

  * Copyright 2005-2011 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.kuali.rice.krad.util;

 import org.apache.log4j.Logger;

 import org.apache.ojb.broker.metadata.ConnectionRepository;

 import org.apache.ojb.broker.metadata.DescriptorRepository;

 import org.apache.ojb.broker.metadata.MetadataManager;

 import org.kuali.rice.core.api.util.ClassLoaderUtils;

 import org.springframework.beans.factory.InitializingBean;

 import org.springframework.core.io.DefaultResourceLoader;

 import java.io.InputStream;

 import java.util.ArrayList;

 import java.util.List;

 public class OjbMetadataLoader implements InitializingBean {

     private static final Logger LOG = Logger.getLogger(OjbMetadataLoader.class);

     private List<String> repositoryDescriptors = new ArrayList<String>();

     private List<String> connectionDescriptors = new ArrayList<String>(); 

     public List<String> getConnectionDescriptors() {

         return connectionDescriptors;

     }

     public void setConnectionDescriptors(List<String> connectionDescriptors) {

         this.connectionDescriptors = connectionDescriptors;

     }

     public List<String> getRepositoryDescriptors() {

         return repositoryDescriptors;

     }

     public void setRepositoryDescriptors(List<String> repositoryDescriptors) {

         this.repositoryDescriptors = repositoryDescriptors;

     }

     public void afterPropertiesSet() throws Exception {

         MetadataManager mm = MetadataManager.getInstance();

         DefaultResourceLoader resourceLoader = new DefaultResourceLoader(ClassLoaderUtils.getDefaultClassLoader());

         for (String repositoryDescriptor : repositoryDescriptors) {

             InputStream is = resourceLoader.getResource(repositoryDescriptor).getInputStream();

             DescriptorRepository dr = mm.readDescriptorRepository(is);

             mm.mergeDescriptorRepository(dr);

             if (LOG.isDebugEnabled()) {

                 LOG.debug("--------------------------------------------------------------------------");

                 LOG.debug("Merging repository descriptor: " + repositoryDescriptor);

                 LOG.debug("--------------------------------------------------------------------------");

             }

             try {

                 is.close();

             } catch (Exception e) {

                 LOG.warn("Failed to close stream to file " + repositoryDescriptor, e);

             }

         }

         for (String connectionDesciptor : connectionDescriptors) {

             InputStream is = resourceLoader.getResource(connectionDesciptor).getInputStream();

             ConnectionRepository cr = mm.readConnectionRepository(is);

             mm.mergeConnectionRepository(cr);

             if (LOG.isDebugEnabled()) {

                 LOG.debug("--------------------------------------------------------------------------");

                 LOG.debug("Merging connection descriptor: " + connectionDesciptor);

                 LOG.debug("--------------------------------------------------------------------------");

             }

             try {

                 is.close();

             } catch (Exception e) {

                 LOG.warn("Failed to close stream to file " + connectionDesciptor, e);

             }

         }

     }

 }