package org.apache.velocity.runtime.resource.loader;
/*
* 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.
*/
import org.apache.velocity.exception.VelocityException;
import org.apache.velocity.runtime.RuntimeServices;
import org.apache.velocity.util.ClassUtils;
/**
* Factory to grab a template loader.
*
* @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
* @version $Id: ResourceLoaderFactory.java 898032 2010-01-11 19:51:03Z nbubna $
*/
public class ResourceLoaderFactory
{
/**
* Gets the loader specified in the configuration file.
* @param rs
* @param loaderClassName
* @return TemplateLoader
*/
public static ResourceLoader getLoader(RuntimeServices rs, String loaderClassName)
{
ResourceLoader loader = null;
try
{
loader = (ResourceLoader) ClassUtils.getNewInstance( loaderClassName );
rs.getLog().debug("ResourceLoader instantiated: "
+ loader.getClass().getName());
return loader;
}
// The ugly three strike again: ClassNotFoundException,IllegalAccessException,InstantiationException
catch(Exception e)
{
String msg = "Problem instantiating the template loader: "+loaderClassName+".\n" +
"Look at your properties file and make sure the\n" +
"name of the template loader is correct.";
rs.getLog().error(msg, e);
throw new VelocityException(msg, e);
}
}
}