| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.commons.compress.compressors.brotli; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.compress.compressors.CompressorInputStream; |
| import org.apache.commons.compress.utils.CountingInputStream; |
| import org.apache.commons.compress.utils.IOUtils; |
| import org.apache.commons.compress.utils.InputStreamStatistics; |
| import org.brotli.dec.BrotliInputStream; |
| |
| /** |
| * {@link CompressorInputStream} implementation to decode Brotli encoded stream. |
| * Library relies on <a href="https://github.com/google/brotli">Google brotli</a> |
| * |
| * @since 1.14 |
| */ |
| public class BrotliCompressorInputStream extends CompressorInputStream |
| implements InputStreamStatistics { |
| |
| private final CountingInputStream countingStream; |
| private final BrotliInputStream decIS; |
| |
| public BrotliCompressorInputStream(final InputStream in) throws IOException { |
| decIS = new BrotliInputStream(countingStream = new CountingInputStream(in)); |
| } |
| |
| @Override |
| public int available() throws IOException { |
| return decIS.available(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| decIS.close(); |
| } |
| |
| @Override |
| public int read(final byte[] b) throws IOException { |
| return decIS.read(b); |
| } |
| |
| @Override |
| public long skip(final long n) throws IOException { |
| return IOUtils.skip(decIS, n); |
| } |
| |
| @Override |
| public void mark(final int readlimit) { |
| decIS.mark(readlimit); |
| } |
| |
| @Override |
| public boolean markSupported() { |
| return decIS.markSupported(); |
| } |
| |
| @Override |
| public int read() throws IOException { |
| final int ret = decIS.read(); |
| count(ret == -1 ? 0 : 1); |
| return ret; |
| } |
| |
| @Override |
| public int read(final byte[] buf, final int off, final int len) throws IOException { |
| final int ret = decIS.read(buf, off, len); |
| count(ret); |
| return ret; |
| } |
| |
| @Override |
| public String toString() { |
| return decIS.toString(); |
| } |
| |
| @Override |
| public void reset() throws IOException { |
| decIS.reset(); |
| } |
| |
| /** |
| * @since 1.17 |
| */ |
| @Override |
| public long getCompressedCount() { |
| return countingStream.getBytesRead(); |
| } |
| } |