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
018package org.apache.commons.compress.utils;
019
020/**
021 * This interface provides statistics on the current decompression stream.
022 * The stream consumer can use that statistics to handle abnormal
023 * compression ratios, i.e. to prevent ZIP bombs.
024 *
025 * @since 1.17
026 */
027public interface InputStreamStatistics {
028    /**
029     * @return the amount of raw or compressed bytes read by the stream
030     */
031    long getCompressedCount();
032
033    /**
034     * @return the amount of decompressed bytes returned by the stream
035     */
036    long getUncompressedCount();
037}