/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.testlibrary;
import java.io.OutputStream;
import java.io.InputStream;
import java.io.IOException;
public final class StreamPumper implements Runnable {
private static final int BUF_SIZE = 256;
private final OutputStream out;
private final InputStream in;
/**
* Create a StreamPumper that reads from in and writes to out.
*
* @param in
* The stream to read from.
* @param out
* The stream to write to.
*/
public StreamPumper(InputStream in, OutputStream out) {
this.in = in;
this.out = out;
}
/**
* Implements Thread.run(). Continuously read from {@code in} and write to
* {@code out} until {@code in} has reached end of stream. Abort on
* interruption. Abort on IOExceptions.
*/
@Override
public void run() {
int length;
InputStream localIn = in;
OutputStream localOut = out;
byte[] buffer = new byte[BUF_SIZE];
try {
while ((length = localIn.read(buffer)) > 0 && !Thread.interrupted()) {
localOut.write(buffer, 0, length);
}
} catch (IOException e) {
// Just abort if something like this happens.
e.printStackTrace();
} finally {
try {
localOut.flush();
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}