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/*
* 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 java.net.MalformedURLException;
import java.net.URL;
/**
* A collection of class management utility methods.
*
* @version $Id: ClassUtils.java 587751 2007-10-24 02:41:36Z vgritsenko $
*/
public class ClassUtils {
/**
* Create a new instance given a class name
*
* @param className A class name
* @return A new instance
* @exception Exception If an instantiation error occurs
*/
public static Object newInstance(String className) throws Exception {
return loadClass(className).newInstance();
}
/**
* Load a class given its name.
* BL: We wan't to use a known ClassLoader--hopefully the heirarchy
* is set correctly.
*
* @param className A class name
* @return The class pointed to by <code>className</code>
* @exception ClassNotFoundException If a loading error occurs
*/
public static Class loadClass(String className) throws ClassNotFoundException {
return getClassLoader().loadClass(className);
}
/**
* Return a resource URL.
* BL: if this is command line operation, the classloading issues
* are more sane. During servlet execution, we explicitly set
* the ClassLoader.
*
* @return The context classloader.
* @exception MalformedURLException If a loading error occurs
*/
public static URL getResource(String resource) throws MalformedURLException {
return getClassLoader().getResource(resource);
}
/**
* Return the context classloader.
* BL: if this is command line operation, the classloading issues
* are more sane. During servlet execution, we explicitly set
* the ClassLoader.
*
* @return The context classloader.
*/
public static ClassLoader getClassLoader() {
return Thread.currentThread().getContextClassLoader();
}
}
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