Here you can find the source of copyStreamBounded(InputStream in, OutputStream out, long length)
public static void copyStreamBounded(InputStream in, OutputStream out, long length) throws IOException
//package com.java2s; /*/*ww w .ja v a2s .c om*/ * JBoss, Home of Professional Open Source. * Copyright 2011, Red Hat, Inc., and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.io.*; public class Main { public static void copyStreamBounded(InputStream in, OutputStream out, long length) throws IOException { final byte[] bytes = new byte[8192]; long totalCount = 0; while (totalCount < length) { int len = (int) Math.min(bytes.length, length - totalCount); int count = in.read(bytes, 0, len); if (count == -1) { throw new EOFException("Reached end of stream prematurely."); } out.write(bytes, 0, count); totalCount += count; } } }