| /* |
| * CountingInputStream |
| * |
| * Author: Lasse Collin <lasse.collin@tukaani.org> |
| * |
| * This file has been put into the public domain. |
| * You can do whatever you want with this file. |
| */ |
| |
| package org.tukaani.xz; |
| |
| import java.io.FilterInputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| |
| /** |
| * Counts the number of bytes read from an input stream. |
| */ |
| class CountingInputStream extends FilterInputStream { |
| private long size = 0; |
| |
| public CountingInputStream(InputStream in) { |
| super(in); |
| } |
| |
| public int read() throws IOException { |
| int ret = in.read(); |
| if (ret != -1 && size >= 0) |
| ++size; |
| |
| return ret; |
| } |
| |
| public int read(byte[] b, int off, int len) throws IOException { |
| int ret = in.read(b, off, len); |
| if (ret > 0 && size >= 0) |
| size += ret; |
| |
| return ret; |
| } |
| |
| public long getSize() { |
| return size; |
| } |
| } |