/*******************************************************************************
* Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
* 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 hydrograph.engine.utilities;
import hydrograph.engine.cascading.assembly.handlers.CustomTransformException;
public class UserClassLoader {
@SuppressWarnings("unchecked")
public static <T> T loadAndInitClass(String className, Class<T> type) {
Class<T> loadedClass;
try {
loadedClass = (Class<T>) Class.forName(className);
} catch (Exception e) {
throw new CustomTransformException("Given custom transform class "
+ className + " could not be loaded with type "
+ type.getName() + ". ", e);
}
try {
return loadedClass.newInstance();
} catch (Exception e) {
throw new CustomTransformException("Given custom transform class "
+ className + " could not be instantiated "
+ type.getName() + ". ", e);
}
}
public static Object loadAndInitClass(String className) {
@SuppressWarnings("rawtypes")
Class loadedClass;
try {
loadedClass = Class.forName(className);
} catch (Exception e) {
throw new CustomTransformException("Given custom transform class "
+ className + " could not be loaded.", e);
}
try {
return loadedClass.newInstance();
} catch (Exception e) {
throw new CustomTransformException("Given custom transform class "
+ className + " could not be instantiated.", e);
}
}
public static Object loadAndInitClass(String className,String classTypeForMags) {
@SuppressWarnings("rawtypes")
Class loadedClass;
try {
loadedClass = Class.forName(className);
} catch (Exception e) {
throw new CustomTransformException("Given "+classTypeForMags+" class "
+ className + " could not be loaded.", e);
}
try {
return loadedClass.newInstance();
} catch (Exception e) {
throw new CustomTransformException("Given "+classTypeForMags+" class "
+ className + " could not be instantiated.", e);
}
}
}