/**

  * Copyright 2013 Sven Diedrichsen 

  * 

  * Licensed 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 de.jollyday.datasource.impl;

 import java.io.InputStream;

 import de.jollyday.ManagerParameter;

 import de.jollyday.config.Configuration;

 import de.jollyday.datasource.ConfigurationDataSource;

 import de.jollyday.util.XMLUtil;

 /**

  * This {@link ConfigurationDataSource} implementation reads XML files as resources

  * from the classpath.

  */

 public class XmlFileDataSource implements ConfigurationDataSource {

         /**

          * XML utility class.

          */

         private XMLUtil xmlUtil = new XMLUtil();

         @Override

         public Configuration getConfiguration(ManagerParameter parameter) {

                 try {

                         final InputStream inputStream = parameter.createResourceUrl().openStream();

                         return xmlUtil.unmarshallConfiguration(inputStream);

                 } catch (Exception e) {

                         throw new IllegalStateException("Cannot instantiate configuration.", e);

                 }

         }

 }