001/*
002 * Copyright 2014 Konik.io
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package io.konik.carriage.utils;
017import java.io.Closeable;
018import java.io.FilterInputStream;
019import java.io.IOException;
020import java.io.InputStream;
021
022
023/**
024 * The Class CallBackInputStream.
025 */
026public class CallBackInputStream extends FilterInputStream {
027
028
029    private Closeable callback;
030
031   /**
032    * Instantiates a new call back input stream.
033    *
034    * @param in the in
035    * @param callback the callback
036    */
037   public CallBackInputStream(InputStream in, Closeable callback) {
038        super(in);
039        this.callback = callback;
040    }
041
042    @Override
043    public void close() throws IOException {
044        in.close();
045        callback.close();
046    }
047
048    @Override
049    protected void finalize() throws Throwable {
050        close();
051        super.finalize();
052    }
053}