1 /* 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package com.oracle.java.testlibrary; 25 26 import java.io.OutputStream; 27 import java.io.InputStream; 28 import java.io.IOException; 29 30 public final class StreamPumper implements Runnable { 31 32 private static final int BUF_SIZE = 256; 33 34 private final OutputStream out; 35 private final InputStream in; 36 37 /** 38 * Create a StreamPumper that reads from in and writes to out. 39 * 40 * @param in The stream to read from. 41 * @param out The stream to write to. 42 */ 43 public StreamPumper(InputStream in, OutputStream out) { 44 this.in = in; 45 this.out = out; 46 } 47 48 /** 49 * Implements Thread.run(). Continuously read from <code>in</code> and write 50 * to <code>out</code> until <code>in</code> has reached end of stream. Abort 51 * on interruption. Abort on IOExceptions. 52 */ 53 @Override 54 public void run() { 55 int length; 56 InputStream localIn = in; 57 OutputStream localOut = out; 58 byte[] buffer = new byte[BUF_SIZE]; 59 60 try { 61 while (!Thread.interrupted() && (length = localIn.read(buffer)) > 0) { 62 localOut.write(buffer, 0, length); 63 } 64 } catch (IOException e) { 65 // Just abort if something like this happens. 66 e.printStackTrace(); 67 } finally { 68 try { 69 localOut.flush(); 70 in.close(); 71 } catch (IOException e) { 72 e.printStackTrace(); 73 } 74 } 75 } 76 }