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.compressors.brotli; 019 020import java.io.IOException; 021import java.io.InputStream; 022 023import org.apache.commons.compress.compressors.CompressorInputStream; 024 025/** 026 * {@link CompressorInputStream} implementation to decode Brotli encoded stream. 027 * Library relies on <a href="https://github.com/google/brotli">Google brotli</a> 028 * 029 * @since 1.14 030 */ 031public class BrotliCompressorInputStream extends CompressorInputStream { 032 033 private final org.brotli.dec.BrotliInputStream decIS; 034 035 public BrotliCompressorInputStream(final InputStream in) throws IOException { 036 this.decIS = new org.brotli.dec.BrotliInputStream(in); 037 } 038 039 @Override 040 public int available() throws IOException { 041 return decIS.available(); 042 } 043 044 @Override 045 public void close() throws IOException { 046 decIS.close(); 047 } 048 049 @Override 050 public int read(final byte[] b) throws IOException { 051 return decIS.read(b); 052 } 053 054 @Override 055 public long skip(final long n) throws IOException { 056 return decIS.skip(n); 057 } 058 059 @Override 060 public void mark(final int readlimit) { 061 decIS.mark(readlimit); 062 } 063 064 @Override 065 public boolean markSupported() { 066 return decIS.markSupported(); 067 } 068 069 @Override 070 public int read() throws IOException { 071 final int ret = decIS.read(); 072 count(ret == -1 ? 0 : 1); 073 return ret; 074 } 075 076 @Override 077 public int read(final byte[] buf, final int off, final int len) throws IOException { 078 final int ret = decIS.read(buf, off, len); 079 count(ret); 080 return ret; 081 } 082 083 @Override 084 public String toString() { 085 return decIS.toString(); 086 } 087 088 @Override 089 public void reset() throws IOException { 090 decIS.reset(); 091 } 092 093}