/*
* 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 com.facebook.presto.raptor.util;
import static java.util.Objects.requireNonNull;
public class Closer<T, X extends Exception>
implements AutoCloseable
{
private final T delegate;
private final Cleaner<T, X> cleaner;
public static <T, X extends Exception> Closer<T, X> closer(T delegate, Cleaner<T, X> cleaner)
{
return new Closer<>(delegate, cleaner);
}
private Closer(T delegate, Cleaner<T, X> cleaner)
{
this.delegate = requireNonNull(delegate, "delegate is null");
this.cleaner = requireNonNull(cleaner, "cleaner is null");
}
public T get()
{
return delegate;
}
@Override
public void close()
throws X
{
cleaner.close(delegate);
}
public interface Cleaner<T, X extends Exception>
{
void close(T object)
throws X;
}
}