/*
* Copyright 2000-2004 The Apache Software Foundation.
*
* 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 org.apache.jetspeed.services;
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
import org.apache.turbine.services.InitializationException;
import org.apache.turbine.services.Service;
/**
* ServiceHelper
*
* @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
* @version $Id: ServiceHelper.java,v 1.2 2004/02/23 04:00:57 jford Exp $
*/
public class ServiceHelper
{
private static final JetspeedLogger log = JetspeedLogFactoryService.getLogger(ServiceHelper.class.getName());
/**
* Load an implementation class from the configuration.
*
* @param configurationName
* @return
* @throws CPSInitializationException
*/
static public Class loadModelClass(Service service, String configurationName)
throws InitializationException
{
String className = service.getConfiguration().getString(configurationName, null);
if (null == className)
{
throw new InitializationException(configurationName + " implementation configuration not found.");
}
try
{
return Class.forName(className);
}
catch (ClassNotFoundException e)
{
throw new InitializationException("Could not preload " + className + " implementation class.", e);
}
}
/**
* Creates objects given the class.
* Throws exceptions if the class is not found in the default class path,
* or the class is not an instance of CmsObject.
*
* @param classe the class of object
* @return the newly created object
* @throws ContentManagementException
*/
public static Object createObject(Class classe)
{
Object object = null;
try
{
object = classe.newInstance();
}
catch (Exception e)
{
log.error("Factory failed to create object: " + classe.getName(), e);
}
return object;
}
}