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 020import java.io.InputStream; 021import java.util.zip.CRC32; 022 023/** 024 * A stream that verifies the CRC of the data read once the stream is 025 * exhausted. 026 * @NotThreadSafe 027 * @since 1.6 028 */ 029public class CRC32VerifyingInputStream extends ChecksumVerifyingInputStream { 030 031 public CRC32VerifyingInputStream(final InputStream in, final long size, final int expectedCrc32) { 032 this(in, size, expectedCrc32 & 0xFFFFffffl); 033 } 034 035 /** 036 * @since 1.7 037 */ 038 public CRC32VerifyingInputStream(final InputStream in, final long size, final long expectedCrc32) { 039 super(new CRC32(), in, size, expectedCrc32); 040 } 041 042}