org.apache.tika.util.ClassLoaderUtil Maven / Gradle / Ivy
package org.apache.tika.util;
/*
* 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.
*/
public class ClassLoaderUtil {
@SuppressWarnings("unchecked")
public static T buildClass(Class iface, String className) {
ClassLoader loader = ClassLoader.getSystemClassLoader();
Class clazz;
try {
clazz = loader.loadClass(className);
if (iface.isAssignableFrom(clazz)) {
return (T) clazz.newInstance();
}
throw new IllegalArgumentException(iface.toString() + " is not assignable from " + className);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}