001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one or more
003 *  contributor license agreements.  See the NOTICE file distributed with
004 *  this work for additional information regarding copyright ownership.
005 *  The ASF licenses this file to You under the Apache License, Version 2.0
006 *  (the "License"); you may not use this file except in compliance with
007 *  the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 *
017 */
018
019package org.apache.commons.compress.utils;
020
021/**
022 * This interface provides statistics on the current decompression stream.
023 * The stream consumer can use that statistics to handle abnormal
024 * compression ratios, i.e. to prevent zip bombs.
025 *
026 * @since 1.17
027 */
028public interface InputStreamStatistics {
029    /**
030     * @return the amount of raw or compressed bytes read by the stream
031     */
032    long getCompressedCount();
033
034    /**
035     * @return the amount of decompressed bytes returned by the stream
036     */
037    long getUncompressedCount();
038}