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/*
* Copyright (c) 2001, 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.
*/
/* @test
* @summary Unit test for datagram-socket-channel adaptors
* @library ..
*/
import java.io.*;
import java.net.*;
import java.nio.*;
import java.nio.channels.*;
import java.nio.charset.*;
import java.util.*;
public class AdaptDatagramSocket {
static java.io.PrintStream out = System.out;
static Random rand = new Random();
static final int ECHO_PORT = 7;
static final int DISCARD_PORT = 9;
static final String REMOTE_HOST = TestUtil.HOST;
static final InetSocketAddress echoAddress
= new InetSocketAddress(REMOTE_HOST, ECHO_PORT);
static final InetSocketAddress discardAddress
= new InetSocketAddress(REMOTE_HOST, DISCARD_PORT);
static String toString(DatagramPacket dp) {
return ("DatagramPacket[off=" + dp.getOffset()
+ ", len=" + dp.getLength()
+ "]");
}
static void test(DatagramSocket ds, InetSocketAddress dst,
boolean shouldTimeout)
throws Exception
{
DatagramPacket op = new DatagramPacket(new byte[100], 13, 42, dst);
rand.nextBytes(op.getData());
DatagramPacket ip = new DatagramPacket(new byte[100], 19, 100 - 19);
out.println("pre op: " + toString(op) + " ip: " + toString(ip));
long start = System.currentTimeMillis();
ds.send(op);
for (;;) {
try {
ds.receive(ip);
if (ip.getLength() == 0) { // ## Not sure why this happens
ip.setLength(100 - 19);
continue;
}
} catch (SocketTimeoutException x) {
if (shouldTimeout) {
out.println("Receive timed out, as expected");
return;
}
throw x;
}
if (shouldTimeout)
throw new Exception("Receive did not time out");
break;
}
out.println("rtt: " + (System.currentTimeMillis() - start));
out.println("post op: " + toString(op) + " ip: " + toString(ip));
for (int i = 0; i < ip.getLength(); i++)
if (ip.getData()[ip.getOffset() + i]
!= op.getData()[op.getOffset() + i])
throw new Exception("Incorrect data received");
}
static void test(InetSocketAddress dst,
int timeout, boolean shouldTimeout,
boolean connect)
throws Exception
{
out.println();
out.println("dst: " + dst);
DatagramSocket ds;
if (false) {
// Original
ds = new DatagramSocket();
} else {
DatagramChannel dc = DatagramChannel.open();
ds = dc.socket();
ds.bind(new InetSocketAddress(0));
}
out.println("socket: " + ds);
if (connect) {
ds.connect(dst);
out.println("connect: " + ds);
}
InetSocketAddress src = new InetSocketAddress(ds.getLocalAddress(),
ds.getLocalPort());
out.println("src: " + src);
if (timeout > 0)
ds.setSoTimeout(timeout);
out.println("timeout: " + ds.getSoTimeout());
for (int i = 0; i < 5; i++)
test(ds, dst, shouldTimeout);
// Leave the socket open so that we don't reuse the old src address
//ds.close();
}
public static void main(String[] args) throws Exception {
test(echoAddress, 0, false, false);
test(echoAddress, 0, false, true);
test(echoAddress, 5000, false, false);
test(discardAddress, 10, true, false);
}
}
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