/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or <http://www.apache.org/licenses/LICENSE-2.0>.
*/
package org.hibernate.validator.internal.util.privilegedactions;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.security.PrivilegedAction;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* Execute instance creation as privileged action.
*
* @author Emmanuel Bernard
* @author Hardy Ferentschik
*/
public final class ConstructorInstance<T> implements PrivilegedAction<T> {
private static final Log log = LoggerFactory.make();
private final Constructor<T> constructor;
private final Object[] initArgs;
public static <T> ConstructorInstance<T> action(Constructor<T> constructor, Object... initArgs) {
return new ConstructorInstance<>( constructor, initArgs );
}
private ConstructorInstance(Constructor<T> constructor, Object... initArgs) {
this.constructor = constructor;
this.initArgs = initArgs;
}
@Override
public T run() {
try {
return constructor.newInstance( initArgs );
}
catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw log.getUnableToInstantiateException( constructor.getDeclaringClass(), e );
}
}
}